更新，spine和很多优化

Assets/Spine/Runtime/spine-csharp.meta

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Assets/Spine/Runtime/spine-csharp/Animation.cs.meta

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Assets/Spine/Runtime/spine-csharp/AnimationState.cs.meta

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Assets/Spine/Runtime/spine-csharp/AnimationStateData.cs

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+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+using System.Collections.Generic;
+
+namespace Spine {
+
+	/// <summary>Stores mix (crossfade) durations to be applied when AnimationState animations are changed.</summary>
+	public class AnimationStateData {
+		internal SkeletonData skeletonData;
+		readonly Dictionary<AnimationPair, float> animationToMixTime = new Dictionary<AnimationPair, float>(AnimationPairComparer.Instance);
+		internal float defaultMix;
+
+		/// <summary>The SkeletonData to look up animations when they are specified by name.</summary>
+		public SkeletonData SkeletonData { get { return skeletonData; } }
+
+		/// <summary>
+		/// The mix duration to use when no mix duration has been specifically defined between two animations.</summary>
+		public float DefaultMix { get { return defaultMix; } set { defaultMix = value; } }
+
+		public AnimationStateData (SkeletonData skeletonData) {
+			if (skeletonData == null) throw new ArgumentException("skeletonData cannot be null.", "skeletonData");
+			this.skeletonData = skeletonData;
+		}
+
+		/// <summary>Sets a mix duration by animation names.</summary>
+		public void SetMix (string fromName, string toName, float duration) {
+			Animation from = skeletonData.FindAnimation(fromName);
+			if (from == null) throw new ArgumentException("Animation not found: " + fromName, "fromName");
+			Animation to = skeletonData.FindAnimation(toName);
+			if (to == null) throw new ArgumentException("Animation not found: " + toName, "toName");
+			SetMix(from, to, duration);
+		}
+
+		/// <summary>Sets a mix duration when changing from the specified animation to the other.
+		/// See TrackEntry.MixDuration.</summary>
+		public void SetMix (Animation from, Animation to, float duration) {
+			if (from == null) throw new ArgumentNullException("from", "from cannot be null.");
+			if (to == null) throw new ArgumentNullException("to", "to cannot be null.");
+			var key = new AnimationPair(from, to);
+			animationToMixTime.Remove(key);
+			animationToMixTime.Add(key, duration);
+		}
+
+		/// <summary>
+		/// The mix duration to use when changing from the specified animation to the other,
+		/// or the DefaultMix if no mix duration has been set.
+		/// </summary>
+		public float GetMix (Animation from, Animation to) {
+			if (from == null) throw new ArgumentNullException("from", "from cannot be null.");
+			if (to == null) throw new ArgumentNullException("to", "to cannot be null.");
+			var key = new AnimationPair(from, to);
+			float duration;
+			if (animationToMixTime.TryGetValue(key, out duration)) return duration;
+			return defaultMix;
+		}
+
+		public struct AnimationPair {
+			public readonly Animation a1;
+			public readonly Animation a2;
+
+			public AnimationPair (Animation a1, Animation a2) {
+				this.a1 = a1;
+				this.a2 = a2;
+			}
+
+			public override string ToString () {
+				return a1.name + "->" + a2.name;
+			}
+		}
+
+		// Avoids boxing in the dictionary.
+		public class AnimationPairComparer : IEqualityComparer<AnimationPair> {
+			public static readonly AnimationPairComparer Instance = new AnimationPairComparer();
+
+			bool IEqualityComparer<AnimationPair>.Equals (AnimationPair x, AnimationPair y) {
+				return ReferenceEquals(x.a1, y.a1) && ReferenceEquals(x.a2, y.a2);
+			}
+
+			int IEqualityComparer<AnimationPair>.GetHashCode (AnimationPair obj) {
+				// from Tuple.CombineHashCodes // return (((h1 << 5) + h1) ^ h2);
+				int h1 = obj.a1.GetHashCode();
+				return (((h1 << 5) + h1) ^ obj.a2.GetHashCode());
+			}
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/AnimationStateData.cs.meta

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+  defaultReferences: []
+  executionOrder: 0
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+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/Atlas.cs

@@ -0,0 +1,372 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#if (UNITY_5 || UNITY_5_3_OR_NEWER || UNITY_WSA || UNITY_WP8 || UNITY_WP8_1)
+#define IS_UNITY
+#endif
+
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Reflection;
+
+#if WINDOWS_STOREAPP
+using System.Threading.Tasks;
+using Windows.Storage;
+#endif
+
+namespace Spine {
+	public class Atlas : IEnumerable<AtlasRegion> {
+		readonly List<AtlasPage> pages = new List<AtlasPage>();
+		List<AtlasRegion> regions = new List<AtlasRegion>();
+		TextureLoader textureLoader;
+
+		#region IEnumerable implementation
+		public IEnumerator<AtlasRegion> GetEnumerator () {
+			return regions.GetEnumerator();
+		}
+
+		System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator () {
+			return regions.GetEnumerator();
+		}
+		#endregion
+
+		public List<AtlasRegion> Regions { get { return regions; } }
+		public List<AtlasPage> Pages { get { return pages; } }
+
+#if !(IS_UNITY)
+#if WINDOWS_STOREAPP
+		private async Task ReadFile (string path, TextureLoader textureLoader) {
+			var folder = Windows.ApplicationModel.Package.Current.InstalledLocation;
+			var file = await folder.GetFileAsync(path).AsTask().ConfigureAwait(false);
+			using (StreamReader reader = new StreamReader(await file.OpenStreamForReadAsync().ConfigureAwait(false))) {
+				try {
+					Atlas atlas = new Atlas(reader, Path.GetDirectoryName(path), textureLoader);
+					this.pages = atlas.pages;
+					this.regions = atlas.regions;
+					this.textureLoader = atlas.textureLoader;
+				} catch (Exception ex) {
+					throw new Exception("Error reading atlas file: " + path, ex);
+				}
+			}
+		}
+
+		public Atlas (string path, TextureLoader textureLoader) {
+			this.ReadFile(path, textureLoader).Wait();
+		}
+#else
+		public Atlas (string path, TextureLoader textureLoader) {
+#if WINDOWS_PHONE
+			Stream stream = Microsoft.Xna.Framework.TitleContainer.OpenStream(path);
+			using (StreamReader reader = new StreamReader(stream)) {
+#else
+			using (StreamReader reader = new StreamReader(path)) {
+#endif // WINDOWS_PHONE
+				try {
+					Atlas atlas = new Atlas(reader, Path.GetDirectoryName(path), textureLoader);
+					this.pages = atlas.pages;
+					this.regions = atlas.regions;
+					this.textureLoader = atlas.textureLoader;
+				} catch (Exception ex) {
+					throw new Exception("Error reading atlas file: " + path, ex);
+				}
+			}
+		}
+#endif // WINDOWS_STOREAPP
+#endif
+
+		public Atlas (List<AtlasPage> pages, List<AtlasRegion> regions) {
+			if (pages == null) throw new ArgumentNullException("pages", "pages cannot be null.");
+			if (regions == null) throw new ArgumentNullException("regions", "regions cannot be null.");
+			this.pages = pages;
+			this.regions = regions;
+			this.textureLoader = null;
+		}
+
+		public Atlas (TextReader reader, string imagesDir, TextureLoader textureLoader) {
+			if (reader == null) throw new ArgumentNullException("reader", "reader cannot be null.");
+			if (imagesDir == null) throw new ArgumentNullException("imagesDir", "imagesDir cannot be null.");
+			if (textureLoader == null) throw new ArgumentNullException("textureLoader", "textureLoader cannot be null.");
+			this.textureLoader = textureLoader;
+
+			string[] entry = new string[5];
+			AtlasPage page = null;
+			AtlasRegion region = null;
+
+			Dictionary<string, Action> pageFields = new Dictionary<string, Action>(5);
+			pageFields.Add("size", () => {
+				page.width = int.Parse(entry[1], CultureInfo.InvariantCulture);
+				page.height = int.Parse(entry[2], CultureInfo.InvariantCulture);
+			});
+			pageFields.Add("format", () => {
+				page.format = (Format)Enum.Parse(typeof(Format), entry[1], false);
+			});
+			pageFields.Add("filter", () => {
+				page.minFilter = (TextureFilter)Enum.Parse(typeof(TextureFilter), entry[1], false);
+				page.magFilter = (TextureFilter)Enum.Parse(typeof(TextureFilter), entry[2], false);
+			});
+			pageFields.Add("repeat", () => {
+				if (entry[1].IndexOf('x') != -1) page.uWrap = TextureWrap.Repeat;
+				if (entry[1].IndexOf('y') != -1) page.vWrap = TextureWrap.Repeat;
+			});
+			pageFields.Add("pma", () => {
+				page.pma = entry[1] == "true";
+			});
+
+			Dictionary<string, Action> regionFields = new Dictionary<string, Action>(8);
+			regionFields.Add("xy", () => { // Deprecated, use bounds.
+				region.x = int.Parse(entry[1], CultureInfo.InvariantCulture);
+				region.y = int.Parse(entry[2], CultureInfo.InvariantCulture);
+			});
+			regionFields.Add("size", () => { // Deprecated, use bounds.
+				region.width = int.Parse(entry[1], CultureInfo.InvariantCulture);
+				region.height = int.Parse(entry[2], CultureInfo.InvariantCulture);
+			});
+			regionFields.Add("bounds", () => {
+				region.x = int.Parse(entry[1], CultureInfo.InvariantCulture);
+				region.y = int.Parse(entry[2], CultureInfo.InvariantCulture);
+				region.width = int.Parse(entry[3], CultureInfo.InvariantCulture);
+				region.height = int.Parse(entry[4], CultureInfo.InvariantCulture);
+			});
+			regionFields.Add("offset", () => { // Deprecated, use offsets.
+				region.offsetX = int.Parse(entry[1], CultureInfo.InvariantCulture);
+				region.offsetY = int.Parse(entry[2], CultureInfo.InvariantCulture);
+			});
+			regionFields.Add("orig", () => { // Deprecated, use offsets.
+				region.originalWidth = int.Parse(entry[1], CultureInfo.InvariantCulture);
+				region.originalHeight = int.Parse(entry[2], CultureInfo.InvariantCulture);
+			});
+			regionFields.Add("offsets", () => {
+				region.offsetX = int.Parse(entry[1], CultureInfo.InvariantCulture);
+				region.offsetY = int.Parse(entry[2], CultureInfo.InvariantCulture);
+				region.originalWidth = int.Parse(entry[3], CultureInfo.InvariantCulture);
+				region.originalHeight = int.Parse(entry[4], CultureInfo.InvariantCulture);
+			});
+			regionFields.Add("rotate", () => {
+				string value = entry[1];
+				if (value == "true")
+					region.degrees = 90;
+				else if (value != "false")
+					region.degrees = int.Parse(value, CultureInfo.InvariantCulture);
+			});
+			regionFields.Add("index", () => {
+				region.index = int.Parse(entry[1], CultureInfo.InvariantCulture);
+			});
+
+			string line = reader.ReadLine();
+			// Ignore empty lines before first entry.
+			while (line != null && line.Trim().Length == 0)
+				line = reader.ReadLine();
+			// Header entries.
+			while (true) {
+				if (line == null || line.Trim().Length == 0) break;
+				if (ReadEntry(entry, line) == 0) break; // Silently ignore all header fields.
+				line = reader.ReadLine();
+			}
+			// Page and region entries.
+			List<string> names = null;
+			List<int[]> values = null;
+			while (true) {
+				if (line == null) break;
+				if (line.Trim().Length == 0) {
+					page = null;
+					line = reader.ReadLine();
+				} else if (page == null) {
+					page = new AtlasPage();
+					page.name = line.Trim();
+					while (true) {
+						if (ReadEntry(entry, line = reader.ReadLine()) == 0) break;
+						Action field;
+						if (pageFields.TryGetValue(entry[0], out field)) field(); // Silently ignore unknown page fields.
+					}
+					textureLoader.Load(page, Path.Combine(imagesDir, page.name));
+					pages.Add(page);
+				} else {
+					region = new AtlasRegion();
+					region.page = page;
+					region.name = line;
+					while (true) {
+						int count = ReadEntry(entry, line = reader.ReadLine());
+						if (count == 0) break;
+						Action field;
+						if (regionFields.TryGetValue(entry[0], out field))
+							field();
+						else {
+							if (names == null) {
+								names = new List<string>(8);
+								values = new List<int[]>(8);
+							}
+							names.Add(entry[0]);
+							int[] entryValues = new int[count];
+							for (int i = 0; i < count; i++)
+								int.TryParse(entry[i + 1], NumberStyles.Any, CultureInfo.InvariantCulture, out entryValues[i]); // Silently ignore non-integer values.
+							values.Add(entryValues);
+						}
+					}
+					if (region.originalWidth == 0 && region.originalHeight == 0) {
+						region.originalWidth = region.width;
+						region.originalHeight = region.height;
+					}
+					if (names != null && names.Count > 0) {
+						region.names = names.ToArray();
+						region.values = values.ToArray();
+						names.Clear();
+						values.Clear();
+					}
+					region.u = region.x / (float)page.width;
+					region.v = region.y / (float)page.height;
+					if (region.degrees == 90) {
+						region.u2 = (region.x + region.height) / (float)page.width;
+						region.v2 = (region.y + region.width) / (float)page.height;
+
+						int tempSwap = region.packedWidth;
+						region.packedWidth = region.packedHeight;
+						region.packedHeight = tempSwap;
+					} else {
+						region.u2 = (region.x + region.width) / (float)page.width;
+						region.v2 = (region.y + region.height) / (float)page.height;
+					}
+					regions.Add(region);
+				}
+			}
+		}
+
+		static private int ReadEntry (string[] entry, string line) {
+			if (line == null) return 0;
+			line = line.Trim();
+			if (line.Length == 0) return 0;
+			int colon = line.IndexOf(':');
+			if (colon == -1) return 0;
+			entry[0] = line.Substring(0, colon).Trim();
+			for (int i = 1, lastMatch = colon + 1; ; i++) {
+				int comma = line.IndexOf(',', lastMatch);
+				if (comma == -1) {
+					entry[i] = line.Substring(lastMatch).Trim();
+					return i;
+				}
+				entry[i] = line.Substring(lastMatch, comma - lastMatch).Trim();
+				lastMatch = comma + 1;
+				if (i == 4) return 4;
+			}
+		}
+
+		public void FlipV () {
+			for (int i = 0, n = regions.Count; i < n; i++) {
+				AtlasRegion region = regions[i];
+				region.v = 1 - region.v;
+				region.v2 = 1 - region.v2;
+			}
+		}
+
+		/// <summary>Returns the first region found with the specified name. This method uses string comparison to find the region, so the result
+		/// should be cached rather than calling this method multiple times.</summary>
+		/// <returns>The region, or null.</returns>
+		public AtlasRegion FindRegion (string name) {
+			for (int i = 0, n = regions.Count; i < n; i++)
+				if (regions[i].name == name) return regions[i];
+			return null;
+		}
+
+		public void Dispose () {
+			if (textureLoader == null) return;
+			for (int i = 0, n = pages.Count; i < n; i++)
+				textureLoader.Unload(pages[i].rendererObject);
+		}
+	}
+
+	public enum Format {
+		Alpha,
+		Intensity,
+		LuminanceAlpha,
+		RGB565,
+		RGBA4444,
+		RGB888,
+		RGBA8888
+	}
+
+	public enum TextureFilter {
+		Nearest,
+		Linear,
+		MipMap,
+		MipMapNearestNearest,
+		MipMapLinearNearest,
+		MipMapNearestLinear,
+		MipMapLinearLinear
+	}
+
+	public enum TextureWrap {
+		MirroredRepeat,
+		ClampToEdge,
+		Repeat
+	}
+
+	public class AtlasPage {
+		public string name;
+		public int width, height;
+		public Format format = Format.RGBA8888;
+		public TextureFilter minFilter = TextureFilter.Nearest;
+		public TextureFilter magFilter = TextureFilter.Nearest;
+		public TextureWrap uWrap = TextureWrap.ClampToEdge;
+		public TextureWrap vWrap = TextureWrap.ClampToEdge;
+		public bool pma;
+		public object rendererObject;
+
+		public AtlasPage Clone () {
+			return MemberwiseClone() as AtlasPage;
+		}
+	}
+
+	public class AtlasRegion : TextureRegion {
+		public AtlasPage page;
+		public string name;
+		public int x, y;
+		public float offsetX, offsetY;
+		public int originalWidth, originalHeight;
+		public int packedWidth { get { return width; } set { width = value; } }
+		public int packedHeight { get { return height; } set { height = value; } }
+		public int degrees;
+		public bool rotate;
+		public int index;
+		public string[] names;
+		public int[][] values;
+
+		override public int OriginalWidth { get { return originalWidth; } }
+		override public int OriginalHeight { get { return originalHeight; } }
+
+		public AtlasRegion Clone () {
+			return MemberwiseClone() as AtlasRegion;
+		}
+	}
+
+	public interface TextureLoader {
+		void Load (AtlasPage page, string path);
+		void Unload (Object texture);
+	}
+}

Assets/Spine/Runtime/spine-csharp/Atlas.cs.meta

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+timeCreated: 1456265154
+licenseType: Free
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+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/Attachments.meta

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+folderAsset: yes
+timeCreated: 1456265152
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Assets/Spine/Runtime/spine-csharp/Attachments/AtlasAttachmentLoader.cs

@@ -0,0 +1,116 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+
+	/// <summary>
+	/// An AttachmentLoader that configures attachments using texture regions from an Atlas.
+	/// See <a href='http://esotericsoftware.com/spine-loading-skeleton-data#JSON-and-binary-data'>Loading Skeleton Data</a> in the Spine Runtimes Guide.
+	/// </summary>
+	public class AtlasAttachmentLoader : AttachmentLoader {
+		private Atlas[] atlasArray;
+		public bool allowMissingRegions;
+
+		public AtlasAttachmentLoader (params Atlas[] atlasArray)
+			: this(false, atlasArray) {
+		}
+
+		public AtlasAttachmentLoader (bool allowMissingRegions, params Atlas[] atlasArray) {
+			if (atlasArray == null) throw new ArgumentNullException("atlas", "atlas array cannot be null.");
+			this.atlasArray = atlasArray;
+			this.allowMissingRegions = allowMissingRegions;
+		}
+
+		private void LoadSequence (string name, string basePath, Sequence sequence) {
+			TextureRegion[] regions = sequence.Regions;
+			for (int i = 0, n = regions.Length; i < n; i++) {
+				string path = sequence.GetPath(basePath, i);
+				regions[i] = FindRegion(path);
+				if (regions[i] == null && !allowMissingRegions)
+					throw new ArgumentException(string.Format("Region not found in atlas: {0} (region attachment: {1})", path, name));
+			}
+		}
+
+		public RegionAttachment NewRegionAttachment (Skin skin, string name, string path, Sequence sequence) {
+			var attachment = new RegionAttachment(name);
+			if (sequence != null)
+				LoadSequence(name, path, sequence);
+			else {
+				AtlasRegion region = FindRegion(path);
+				if (region == null && !allowMissingRegions)
+					throw new ArgumentException(string.Format("Region not found in atlas: {0} (region attachment: {1})", path, name));
+				attachment.Region = region;
+			}
+			return attachment;
+		}
+
+		public MeshAttachment NewMeshAttachment (Skin skin, string name, string path, Sequence sequence) {
+			var attachment = new MeshAttachment(name);
+			if (sequence != null)
+				LoadSequence(name, path, sequence);
+			else {
+				AtlasRegion region = FindRegion(path);
+				if (region == null && !allowMissingRegions)
+					throw new ArgumentException(string.Format("Region not found in atlas: {0} (region attachment: {1})", path, name));
+				attachment.Region = region;
+			}
+			return attachment;
+		}
+
+		public BoundingBoxAttachment NewBoundingBoxAttachment (Skin skin, string name) {
+			return new BoundingBoxAttachment(name);
+		}
+
+		public PathAttachment NewPathAttachment (Skin skin, string name) {
+			return new PathAttachment(name);
+		}
+
+		public PointAttachment NewPointAttachment (Skin skin, string name) {
+			return new PointAttachment(name);
+		}
+
+		public ClippingAttachment NewClippingAttachment (Skin skin, string name) {
+			return new ClippingAttachment(name);
+		}
+
+		public AtlasRegion FindRegion (string name) {
+			AtlasRegion region;
+
+			for (int i = 0; i < atlasArray.Length; i++) {
+				region = atlasArray[i].FindRegion(name);
+				if (region != null)
+					return region;
+			}
+
+			return null;
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/Attachments/AtlasAttachmentLoader.cs.meta

@@ -0,0 +1,12 @@
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Assets/Spine/Runtime/spine-csharp/Attachments/Attachment.cs

@@ -0,0 +1,56 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+
+	/// <summary>The base class for all attachments.</summary>
+	abstract public class Attachment {
+		/// <summary>The attachment's name.</summary>
+		public string Name { get; }
+
+		protected Attachment (string name) {
+			if (name == null) throw new ArgumentNullException("name", "name cannot be null");
+			this.Name = name;
+		}
+
+		/// <summary>Copy constructor.</summary>
+		protected Attachment (Attachment other) {
+			Name = other.Name;
+		}
+
+		override public string ToString () {
+			return Name;
+		}
+
+		/// <summary>Returns a copy of the attachment.</summary>
+		public abstract Attachment Copy ();
+	}
+}

Assets/Spine/Runtime/spine-csharp/Attachments/Attachment.cs.meta

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+guid: 05b56321b2ddd8145a888746bc6ab917
+timeCreated: 1456265153
+licenseType: Free
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Assets/Spine/Runtime/spine-csharp/Attachments/AttachmentLoader.cs

@@ -0,0 +1,48 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+namespace Spine {
+	public interface AttachmentLoader {
+		/// <return>May be null to not load any attachment.</return>
+		RegionAttachment NewRegionAttachment (Skin skin, string name, string path, Sequence sequence);
+
+		/// <return>May be null to not load any attachment.</return>
+		MeshAttachment NewMeshAttachment (Skin skin, string name, string path, Sequence sequence);
+
+		/// <return>May be null to not load any attachment.</return>
+		BoundingBoxAttachment NewBoundingBoxAttachment (Skin skin, string name);
+
+		/// <returns>May be null to not load any attachment</returns>
+		PathAttachment NewPathAttachment (Skin skin, string name);
+
+		PointAttachment NewPointAttachment (Skin skin, string name);
+
+		ClippingAttachment NewClippingAttachment (Skin skin, string name);
+	}
+}

Assets/Spine/Runtime/spine-csharp/Attachments/AttachmentLoader.cs.meta

@@ -0,0 +1,12 @@
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Assets/Spine/Runtime/spine-csharp/Attachments/AttachmentType.cs

@@ -0,0 +1,34 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+namespace Spine {
+	public enum AttachmentType {
+		Region, Boundingbox, Mesh, Linkedmesh, Path, Point, Clipping, Sequence
+	}
+}

Assets/Spine/Runtime/spine-csharp/Attachments/AttachmentType.cs.meta

@@ -0,0 +1,12 @@
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Assets/Spine/Runtime/spine-csharp/Attachments/BoundingBoxAttachment.cs

@@ -0,0 +1,48 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+	/// <summary>Attachment that has a polygon for bounds checking.</summary>
+	public class BoundingBoxAttachment : VertexAttachment {
+		public BoundingBoxAttachment (string name)
+			: base(name) {
+		}
+
+		/// <summary>Copy constructor.</summary>
+		protected BoundingBoxAttachment (BoundingBoxAttachment other)
+			: base(other) {
+		}
+
+		public override Attachment Copy () {
+			return new BoundingBoxAttachment(this);
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/Attachments/BoundingBoxAttachment.cs.meta

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Assets/Spine/Runtime/spine-csharp/Attachments/ClippingAttachment.cs

@@ -0,0 +1,51 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+	public class ClippingAttachment : VertexAttachment {
+		internal SlotData endSlot;
+
+		public SlotData EndSlot { get { return endSlot; } set { endSlot = value; } }
+
+		public ClippingAttachment (string name) : base(name) {
+		}
+
+		/// <summary>Copy constructor.</summary>
+		protected ClippingAttachment (ClippingAttachment other)
+			: base(other) {
+			endSlot = other.endSlot;
+		}
+
+		public override Attachment Copy () {
+			return new ClippingAttachment(this);
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/Attachments/ClippingAttachment.cs.meta

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Assets/Spine/Runtime/spine-csharp/Attachments/IHasTextureRegion.cs

@@ -0,0 +1,60 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#if (UNITY_5 || UNITY_5_3_OR_NEWER || UNITY_WSA || UNITY_WP8 || UNITY_WP8_1)
+#define IS_UNITY
+#endif
+
+namespace Spine {
+#if IS_UNITY
+	using Color32F = UnityEngine.Color;
+#endif
+
+	public interface IHasTextureRegion {
+		/// <summary>The name used to find the <see cref="Region"/></summary>
+		string Path { get; set; }
+		/// <summary>
+		/// Sets the region used to draw the attachment. After setting the region or if the region's properties are changed,
+		/// <see cref="UpdateRegion()"/> must be called.
+		/// </summary>
+		TextureRegion Region { get; set; }
+
+		/// <summary>
+		/// Updates any values the attachment calculates using the <see cref="Region"/>. Must be called after setting the
+		/// <see cref="Region"/> or if the region's properties are changed.
+		/// </summary>
+		void UpdateRegion ();
+
+		Color32F GetColor ();
+		void SetColor (Color32F color);
+		void SetColor (float r, float g, float b, float a);
+
+		Sequence Sequence { get; set; }
+	}
+}

Assets/Spine/Runtime/spine-csharp/Attachments/IHasTextureRegion.cs.meta

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Assets/Spine/Runtime/spine-csharp/Attachments/MeshAttachment.cs

@@ -0,0 +1,234 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#if (UNITY_5 || UNITY_5_3_OR_NEWER || UNITY_WSA || UNITY_WP8 || UNITY_WP8_1)
+#define IS_UNITY
+#endif
+
+using System;
+
+namespace Spine {
+#if IS_UNITY
+	using Color32F = UnityEngine.Color;
+#endif
+
+	/// <summary>Attachment that displays a texture region using a mesh.</summary>
+	public class MeshAttachment : VertexAttachment, IHasTextureRegion {
+		internal TextureRegion region;
+		internal string path;
+		internal float[] regionUVs, uvs;
+		internal int[] triangles;
+		// Color is a struct, set to protected to prevent
+		// Color color = slot.color; color.a = 0.5;
+		// modifying just a copy of the struct instead of the original
+		// object as in reference implementation.
+		protected Color32F color = new Color32F(1, 1, 1, 1);
+		internal int hullLength;
+		private MeshAttachment parentMesh;
+		private Sequence sequence;
+
+		public TextureRegion Region {
+			get { return region; }
+			set {
+				if (value == null) throw new ArgumentNullException("region", "region cannot be null.");
+				region = value;
+			}
+		}
+		public int HullLength { get { return hullLength; } set { hullLength = value; } }
+		public float[] RegionUVs { get { return regionUVs; } set { regionUVs = value; } }
+		/// <summary>The UV pair for each vertex, normalized within the entire texture.
+		/// <seealso cref="MeshAttachment.UpdateRegion"/></summary>
+		public float[] UVs { get { return uvs; } set { uvs = value; } }
+		public int[] Triangles { get { return triangles; } set { triangles = value; } }
+
+		public Color32F GetColor () {
+			return color;
+		}
+
+		public void SetColor (Color32F color) {
+			this.color = color;
+		}
+
+		public void SetColor (float r, float g, float b, float a) {
+			color = new Color32F(r, g, b, a);
+		}
+
+		public string Path { get { return path; } set { path = value; } }
+		public Sequence Sequence { get { return sequence; } set { sequence = value; } }
+
+		public MeshAttachment ParentMesh {
+			get { return parentMesh; }
+			set {
+				parentMesh = value;
+				if (value != null) {
+					bones = value.bones;
+					vertices = value.vertices;
+					worldVerticesLength = value.worldVerticesLength;
+					regionUVs = value.regionUVs;
+					triangles = value.triangles;
+					HullLength = value.HullLength;
+					Edges = value.Edges;
+					Width = value.Width;
+					Height = value.Height;
+				}
+			}
+		}
+
+		// Nonessential.
+		public int[] Edges { get; set; }
+		public float Width { get; set; }
+		public float Height { get; set; }
+
+		public MeshAttachment (string name)
+			: base(name) {
+		}
+
+		/// <summary>Copy constructor. Use <see cref="NewLinkedMesh"/> if the other mesh is a linked mesh.</summary>
+		protected MeshAttachment (MeshAttachment other)
+			: base(other) {
+
+			if (parentMesh != null) throw new ArgumentException("Use newLinkedMesh to copy a linked mesh.");
+
+			region = other.region;
+			path = other.path;
+			color = other.color;
+
+			regionUVs = new float[other.regionUVs.Length];
+			Array.Copy(other.regionUVs, 0, regionUVs, 0, regionUVs.Length);
+
+			uvs = new float[other.uvs.Length];
+			Array.Copy(other.uvs, 0, uvs, 0, uvs.Length);
+
+			triangles = new int[other.triangles.Length];
+			Array.Copy(other.triangles, 0, triangles, 0, triangles.Length);
+
+			hullLength = other.hullLength;
+			sequence = other.sequence == null ? null : new Sequence(other.sequence);
+
+			// Nonessential.
+			if (other.Edges != null) {
+				Edges = new int[other.Edges.Length];
+				Array.Copy(other.Edges, 0, Edges, 0, Edges.Length);
+			}
+			Width = other.Width;
+			Height = other.Height;
+		}
+
+
+		public void UpdateRegion () {
+			float[] regionUVs = this.regionUVs;
+			if (this.uvs == null || this.uvs.Length != regionUVs.Length) this.uvs = new float[regionUVs.Length];
+			float[] uvs = this.uvs;
+			int n = uvs.Length;
+			float u, v, width, height;
+
+			if (region is AtlasRegion) {
+				u = this.region.u;
+				v = this.region.v;
+				AtlasRegion region = (AtlasRegion)this.region;
+				// Note: difference from reference implementation.
+				// Covers rotation since region.width and height are already setup accordingly.
+				float textureWidth = this.region.width / (region.u2 - region.u);
+				float textureHeight = this.region.height / (region.v2 - region.v);
+				switch (region.degrees) {
+				case 90:
+					u -= (region.originalHeight - region.offsetY - region.packedWidth) / textureWidth;
+					v -= (region.originalWidth - region.offsetX - region.packedHeight) / textureHeight;
+					width = region.originalHeight / textureWidth;
+					height = region.originalWidth / textureHeight;
+					for (int i = 0; i < n; i += 2) {
+						uvs[i] = u + regionUVs[i + 1] * width;
+						uvs[i + 1] = v + (1 - regionUVs[i]) * height;
+					}
+					return;
+				case 180:
+					u -= (region.originalWidth - region.offsetX - region.packedWidth) / textureWidth;
+					v -= region.offsetY / textureHeight;
+					width = region.originalWidth / textureWidth;
+					height = region.originalHeight / textureHeight;
+					for (int i = 0; i < n; i += 2) {
+						uvs[i] = u + (1 - regionUVs[i]) * width;
+						uvs[i + 1] = v + (1 - regionUVs[i + 1]) * height;
+					}
+					return;
+				case 270:
+					u -= region.offsetY / textureWidth;
+					v -= region.offsetX / textureHeight;
+					width = region.originalHeight / textureWidth;
+					height = region.originalWidth / textureHeight;
+					for (int i = 0; i < n; i += 2) {
+						uvs[i] = u + (1 - regionUVs[i + 1]) * width;
+						uvs[i + 1] = v + regionUVs[i] * height;
+					}
+					return;
+				}
+				u -= region.offsetX / textureWidth;
+				v -= (region.originalHeight - region.offsetY - region.packedHeight) / textureHeight;
+				width = region.originalWidth / textureWidth;
+				height = region.originalHeight / textureHeight;
+			} else if (region == null) {
+				u = v = 0;
+				width = height = 1;
+			} else {
+				u = region.u;
+				v = region.v;
+				width = region.u2 - u;
+				height = region.v2 - v;
+			}
+			for (int i = 0; i < n; i += 2) {
+				uvs[i] = u + regionUVs[i] * width;
+				uvs[i + 1] = v + regionUVs[i + 1] * height;
+			}
+		}
+
+		/// <summary>If the attachment has a <see cref="Sequence"/>, the region may be changed.</summary>
+		override public void ComputeWorldVertices (Skeleton skeleton, Slot slot, int start, int count, float[] worldVertices, int offset,
+			int stride = 2) {
+			if (sequence != null) sequence.Apply(slot.AppliedPose, this);
+			base.ComputeWorldVertices(skeleton, slot, start, count, worldVertices, offset, stride);
+		}
+
+		/// <summary>Returns a new mesh with this mesh set as the <see cref="ParentMesh"/>.
+		public MeshAttachment NewLinkedMesh () {
+			var mesh = new MeshAttachment(Name);
+
+			mesh.timelineAttachment = timelineAttachment;
+			mesh.region = region;
+			mesh.path = path;
+			mesh.color = color;
+			mesh.ParentMesh = parentMesh != null ? parentMesh : this;
+			if (mesh.Region != null) mesh.UpdateRegion();
+			return mesh;
+		}
+
+		public override Attachment Copy () {
+			return parentMesh != null ? NewLinkedMesh() : new MeshAttachment(this);
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/Attachments/MeshAttachment.cs.meta

@@ -0,0 +1,12 @@
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+guid: b7f7514a003143844b6d01ecc93ed4d5
+timeCreated: 1466772712
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
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+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/Attachments/PathAttachment.cs

@@ -0,0 +1,65 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+using System.Collections.Generic;
+
+namespace Spine {
+	public class PathAttachment : VertexAttachment {
+		internal float[] lengths;
+		internal bool closed, constantSpeed;
+
+		/// <summary>The length in the setup pose from the start of the path to the end of each curve.</summary>
+		public float[] Lengths { get { return lengths; } set { lengths = value; } }
+		/// <summary>If true, the start and end knots are connected.</summary>
+		public bool Closed { get { return closed; } set { closed = value; } }
+		/// <summary>If true, additional calculations are performed to make computing positions along the path more accurate and movement along
+		/// the path have a constant speed.</summary>
+		public bool ConstantSpeed { get { return constantSpeed; } set { constantSpeed = value; } }
+
+		public PathAttachment (String name)
+			: base(name) {
+		}
+
+		/// <summary>Copy constructor.</summary>
+		protected PathAttachment (PathAttachment other)
+			: base(other) {
+
+			lengths = new float[other.lengths.Length];
+			Array.Copy(other.lengths, 0, lengths, 0, lengths.Length);
+
+			closed = other.closed;
+			constantSpeed = other.constantSpeed;
+		}
+
+		public override Attachment Copy () {
+			return new PathAttachment(this);
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/Attachments/PathAttachment.cs.meta

@@ -0,0 +1,12 @@
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+guid: c77d9bf384a1e9f41966464e7e3b4870
+timeCreated: 1466772712
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/Attachments/PointAttachment.cs

@@ -0,0 +1,73 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+	/// <summary>
+	/// An attachment which is a single point and a rotation. This can be used to spawn projectiles, particles, etc. A bone can be
+	/// used in similar ways, but a PointAttachment is slightly less expensive to compute and can be hidden, shown, and placed in a
+	/// skin.
+	/// <p>
+	/// See <a href="https://esotericsoftware.com/spine-points">Point Attachments</a> in the Spine User Guide.
+	/// </summary>
+	public class PointAttachment : Attachment {
+		internal float x, y, rotation;
+		public float X { get { return x; } set { x = value; } }
+		public float Y { get { return y; } set { y = value; } }
+		public float Rotation { get { return rotation; } set { rotation = value; } }
+
+		public PointAttachment (string name)
+			: base(name) {
+		}
+
+		/// <summary>Copy constructor.</summary>
+		protected PointAttachment (PointAttachment other)
+			: base(other) {
+			x = other.x;
+			y = other.y;
+			rotation = other.rotation;
+		}
+
+		public void ComputeWorldPosition (BonePose bone, out float ox, out float oy) {
+			bone.LocalToWorld(this.x, this.y, out ox, out oy);
+		}
+
+		public float ComputeWorldRotation (BonePose bone) {
+			float r = rotation * MathUtils.DegRad, cos = (float)Math.Cos(r), sin = (float)Math.Sin(r);
+			float x = cos * bone.a + sin * bone.b;
+			float y = cos * bone.c + sin * bone.d;
+			return MathUtils.Atan2Deg(y, x);
+		}
+
+		public override Attachment Copy () {
+			return new PointAttachment(this);
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/Attachments/PointAttachment.cs.meta

@@ -0,0 +1,12 @@
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+guid: 4fdde4cc4df0952468946f4f913dcb36
+timeCreated: 1485603478
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/Attachments/RegionAttachment.cs

@@ -0,0 +1,233 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#if (UNITY_5 || UNITY_5_3_OR_NEWER || UNITY_WSA || UNITY_WP8 || UNITY_WP8_1)
+#define IS_UNITY
+#endif
+
+using System;
+
+namespace Spine {
+#if IS_UNITY
+	using Color32F = UnityEngine.Color;
+#endif
+
+	/// <summary>Attachment that displays a texture region.</summary>
+	public class RegionAttachment : Attachment, IHasTextureRegion {
+		public const int BLX = 0, BLY = 1;
+		public const int ULX = 2, ULY = 3;
+		public const int URX = 4, URY = 5;
+		public const int BRX = 6, BRY = 7;
+
+		internal TextureRegion region;
+		internal float x, y, rotation, scaleX = 1, scaleY = 1, width, height;
+		internal float[] offset = new float[8], uvs = new float[8];
+		// Color is a struct, set to protected to prevent
+		// Color color = slot.color; color.a = 0.5;
+		// modifying just a copy of the struct instead of the original
+		// object as in reference implementation.
+		protected Color32F color = new Color32F(1, 1, 1, 1);
+		internal Sequence sequence;
+
+		public float X { get { return x; } set { x = value; } }
+		public float Y { get { return y; } set { y = value; } }
+		public float Rotation { get { return rotation; } set { rotation = value; } }
+		public float ScaleX { get { return scaleX; } set { scaleX = value; } }
+		public float ScaleY { get { return scaleY; } set { scaleY = value; } }
+		public float Width { get { return width; } set { width = value; } }
+		public float Height { get { return height; } set { height = value; } }
+
+		public Color32F GetColor () {
+			return color;
+		}
+
+		public void SetColor (Color32F color) {
+			this.color = color;
+		}
+
+		public void SetColor (float r, float g, float b, float a) {
+			color = new Color32F(r, g, b, a);
+		}
+
+		public string Path { get; set; }
+		public TextureRegion Region { get { return region; } set { region = value; } }
+
+		/// <summary>For each of the 4 vertices, a pair of <c>x,y</c> values that is the local position of the vertex.</summary>
+		/// <seealso cref="UpdateRegion"/>
+		public float[] Offset { get { return offset; } }
+		public float[] UVs { get { return uvs; } }
+		public Sequence Sequence { get { return sequence; } set { sequence = value; } }
+
+		public RegionAttachment (string name)
+			: base(name) {
+		}
+
+		/// <summary>Copy constructor.</summary>
+		public RegionAttachment (RegionAttachment other)
+			: base(other) {
+			region = other.region;
+			Path = other.Path;
+			x = other.x;
+			y = other.y;
+			scaleX = other.scaleX;
+			scaleY = other.scaleY;
+			rotation = other.rotation;
+			width = other.width;
+			height = other.height;
+			Array.Copy(other.uvs, 0, uvs, 0, 8);
+			Array.Copy(other.offset, 0, offset, 0, 8);
+			color = other.color;
+			sequence = other.sequence == null ? null : new Sequence(other.sequence);
+		}
+
+		/// <summary>Calculates the <see cref="Offset"/> and <see cref="UVs"/> using the region and the attachment's transform. Must be called if the
+		/// region, the region's properties, or the transform are changed.</summary>
+		public void UpdateRegion () {
+			float width = Width, height = Height;
+			float localX2 = width / 2;
+			float localY2 = height / 2;
+			float localX = -localX2;
+			float localY = -localY2;
+			bool rotated = false;
+			if (region is AtlasRegion) {
+				AtlasRegion region = (AtlasRegion)this.region;
+				localX += region.offsetX / region.originalWidth * width;
+				localY += region.offsetY / region.originalHeight * height;
+				if (region.degrees == 90) {
+					rotated = true;
+					localX2 -= (region.originalWidth - region.offsetX - region.packedHeight) / region.originalWidth * width;
+					localY2 -= (region.originalHeight - region.offsetY - region.packedWidth) / region.originalHeight * height;
+				} else {
+					localX2 -= (region.originalWidth - region.offsetX - region.packedWidth) / region.originalWidth * width;
+					localY2 -= (region.originalHeight - region.offsetY - region.packedHeight) / region.originalHeight * height;
+				}
+			}
+			float scaleX = ScaleX, scaleY = ScaleY;
+			localX *= scaleX;
+			localY *= scaleY;
+			localX2 *= scaleX;
+			localY2 *= scaleY;
+			float r = Rotation * MathUtils.DegRad, cos = (float)Math.Cos(r), sin = (float)Math.Sin(r);
+			float x = X, y = Y;
+			float localXCos = localX * cos + x;
+			float localXSin = localX * sin;
+			float localYCos = localY * cos + y;
+			float localYSin = localY * sin;
+			float localX2Cos = localX2 * cos + x;
+			float localX2Sin = localX2 * sin;
+			float localY2Cos = localY2 * cos + y;
+			float localY2Sin = localY2 * sin;
+			float[] offset = this.offset;
+			offset[BLX] = localXCos - localYSin;
+			offset[BLY] = localYCos + localXSin;
+			offset[ULX] = localXCos - localY2Sin;
+			offset[ULY] = localY2Cos + localXSin;
+			offset[URX] = localX2Cos - localY2Sin;
+			offset[URY] = localY2Cos + localX2Sin;
+			offset[BRX] = localX2Cos - localYSin;
+			offset[BRY] = localYCos + localX2Sin;
+
+			float[] uvs = this.uvs;
+			if (region == null) {
+				uvs[BLX] = 0;
+				uvs[BLY] = 0;
+				uvs[ULX] = 0;
+				uvs[ULY] = 1;
+				uvs[URX] = 1;
+				uvs[URY] = 1;
+				uvs[BRX] = 1;
+				uvs[BRY] = 0;
+			} else if (rotated) {
+				uvs[BLX] = region.u2;
+				uvs[BLY] = region.v;
+				uvs[ULX] = region.u2;
+				uvs[ULY] = region.v2;
+				uvs[URX] = region.u;
+				uvs[URY] = region.v2;
+				uvs[BRX] = region.u;
+				uvs[BRY] = region.v;
+			} else {
+				uvs[BLX] = region.u2;
+				uvs[BLY] = region.v2;
+				uvs[ULX] = region.u;
+				uvs[ULY] = region.v2;
+				uvs[URX] = region.u;
+				uvs[URY] = region.v;
+				uvs[BRX] = region.u2;
+				uvs[BRY] = region.v;
+			}
+		}
+
+		/// <summary>
+		/// Transforms the attachment's four vertices to world coordinates. If the attachment has a <see cref="Sequence"/> the region may
+		/// be changed.</summary>
+		/// <param name="bone">The parent bone.</param>
+		/// <param name="worldVertices">The output world vertices. Must have a length greater than or equal to offset + 8.</param>
+		/// <param name="offset">The worldVertices index to begin writing values.</param>
+		/// <param name="stride">The number of worldVertices entries between the value pairs written.</param>
+		public void ComputeWorldVertices (Slot slot, float[] worldVertices, int offset, int stride = 2) {
+			if (sequence != null) sequence.Apply(slot.AppliedPose, this);
+
+			float[] vertexOffset = this.offset;
+			BonePose bone = slot.Bone.AppliedPose;
+			float bwx = bone.worldX, bwy = bone.worldY;
+			float a = bone.a, b = bone.b, c = bone.c, d = bone.d;
+			float offsetX, offsetY;
+
+			// Vertex order is different from RegionAttachment.java
+			offsetX = vertexOffset[BRX]; // 0
+			offsetY = vertexOffset[BRY]; // 1
+			worldVertices[offset] = offsetX * a + offsetY * b + bwx; // bl
+			worldVertices[offset + 1] = offsetX * c + offsetY * d + bwy;
+			offset += stride;
+
+			offsetX = vertexOffset[BLX]; // 2
+			offsetY = vertexOffset[BLY]; // 3
+			worldVertices[offset] = offsetX * a + offsetY * b + bwx; // ul
+			worldVertices[offset + 1] = offsetX * c + offsetY * d + bwy;
+			offset += stride;
+
+			offsetX = vertexOffset[ULX]; // 4
+			offsetY = vertexOffset[ULY]; // 5
+			worldVertices[offset] = offsetX * a + offsetY * b + bwx; // ur
+			worldVertices[offset + 1] = offsetX * c + offsetY * d + bwy;
+			offset += stride;
+
+			offsetX = vertexOffset[URX]; // 6
+			offsetY = vertexOffset[URY]; // 7
+			worldVertices[offset] = offsetX * a + offsetY * b + bwx; // br
+			worldVertices[offset + 1] = offsetX * c + offsetY * d + bwy;
+			//offset += stride;
+		}
+
+		public override Attachment Copy () {
+			return new RegionAttachment(this);
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/Attachments/RegionAttachment.cs.meta

@@ -0,0 +1,12 @@
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+timeCreated: 1466772712
+licenseType: Free
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+  serializedVersion: 2
+  defaultReferences: []
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+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/Attachments/Sequence.cs

@@ -0,0 +1,95 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+using System.Text;
+
+namespace Spine {
+	public class Sequence {
+		static int nextID = 0;
+		static readonly Object nextIdLock = new Object();
+
+		internal readonly int id;
+		internal readonly TextureRegion[] regions;
+		internal int start, digits, setupIndex;
+
+		public int Start { get { return start; } set { start = value; } }
+		public int Digits { get { return digits; } set { digits = value; } }
+		/// <summary>The index of the region to show for the setup pose.</summary>
+		public int SetupIndex { get { return setupIndex; } set { setupIndex = value; } }
+		public TextureRegion[] Regions { get { return regions; } }
+		/// <summary>Returns a unique ID for this attachment.</summary>
+		public int Id { get { return id; } }
+
+		public Sequence (int count) {
+			lock (Sequence.nextIdLock) {
+				id = Sequence.nextID++;
+			}
+			regions = new TextureRegion[count];
+		}
+
+		/// <summary>Copy constructor.</summary>
+		public Sequence (Sequence other) {
+			lock (Sequence.nextIdLock) {
+				id = Sequence.nextID++;
+			}
+			regions = new TextureRegion[other.regions.Length];
+			Array.Copy(other.regions, 0, regions, 0, regions.Length);
+
+			start = other.start;
+			digits = other.digits;
+			setupIndex = other.setupIndex;
+		}
+
+		public void Apply (SlotPose slot, IHasTextureRegion attachment) {
+			int index = slot.SequenceIndex;
+			if (index == -1) index = setupIndex;
+			if (index >= regions.Length) index = regions.Length - 1;
+			TextureRegion region = regions[index];
+			if (attachment.Region != region) {
+				attachment.Region = region;
+				attachment.UpdateRegion();
+			}
+		}
+
+		public string GetPath (string basePath, int index) {
+			var buffer = new StringBuilder(basePath.Length + digits);
+			buffer.Append(basePath);
+			string frame = (start + index).ToString();
+			for (int i = digits - frame.Length; i > 0; i--)
+				buffer.Append('0');
+			buffer.Append(frame);
+			return buffer.ToString();
+		}
+	}
+
+	public enum SequenceMode {
+		Hold, Once, Loop, Pingpong, OnceReverse, LoopReverse, PingpongReverse
+	}
+}

Assets/Spine/Runtime/spine-csharp/Attachments/Sequence.cs.meta

@@ -0,0 +1,11 @@
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Assets/Spine/Runtime/spine-csharp/Attachments/VertexAttachment.cs

@@ -0,0 +1,158 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+	/// <summary>>An attachment with vertices that are transformed by one or more bones and can be deformed by a slot's
+	/// <see cref="SlotPose.Deform"/>.</summary>
+	public abstract class VertexAttachment : Attachment {
+		static int nextID = 0;
+		static readonly Object nextIdLock = new Object();
+
+		internal readonly int id;
+		internal VertexAttachment timelineAttachment;
+		internal int[] bones;
+		internal float[] vertices;
+		internal int worldVerticesLength;
+
+		/// <summary>Gets a unique ID for this attachment.</summary>
+		public int Id { get { return id; } }
+		public int[] Bones { get { return bones; } set { bones = value; } }
+		public float[] Vertices { get { return vertices; } set { vertices = value; } }
+		public int WorldVerticesLength { get { return worldVerticesLength; } set { worldVerticesLength = value; } }
+		/// <summary>Timelines for the timeline attachment are also applied to this attachment.
+		/// May be null if no attachment-specific timelines should be applied.</summary>
+		public VertexAttachment TimelineAttachment { get { return timelineAttachment; } set { timelineAttachment = value; } }
+
+		public VertexAttachment (string name)
+			: base(name) {
+
+			lock (VertexAttachment.nextIdLock) {
+				id = VertexAttachment.nextID++;
+			}
+			timelineAttachment = this;
+		}
+
+		/// <summary>Copy constructor.</summary>
+		public VertexAttachment (VertexAttachment other)
+			: base(other) {
+
+			lock (VertexAttachment.nextIdLock) {
+				id = VertexAttachment.nextID++;
+			}
+			timelineAttachment = other.timelineAttachment;
+			if (other.bones != null) {
+				bones = new int[other.bones.Length];
+				Array.Copy(other.bones, 0, bones, 0, bones.Length);
+			} else
+				bones = null;
+
+			if (other.vertices != null) {
+				vertices = new float[other.vertices.Length];
+				Array.Copy(other.vertices, 0, vertices, 0, vertices.Length);
+			} else
+				vertices = null;
+
+			worldVerticesLength = other.worldVerticesLength;
+		}
+
+		public void ComputeWorldVertices (Skeleton skeleton, Slot slot, float[] worldVertices) {
+			ComputeWorldVertices(skeleton, slot, 0, worldVerticesLength, worldVertices, 0);
+		}
+
+		/// <summary>
+		/// Transforms the attachment's local <see cref="Vertices"/> to world coordinates. If the slot's <see cref="SlotPose.Deform"/>
+		/// is not empty, it is used to deform the vertices.
+		/// <para />
+		/// See <a href="http://esotericsoftware.com/spine-runtime-skeletons#World-transforms">World transforms</a> in the Spine
+		/// Runtimes Guide.
+		/// </summary>
+		/// <param name="start">The index of the first <see cref="Vertices"/> value to transform. Each vertex has 2 values, x and y.</param>
+		/// <param name="count">The number of world vertex values to output. Must be less than or equal to <see cref="WorldVerticesLength"/> - start.</param>
+		/// <param name="worldVertices">The output world vertices. Must have a length greater than or equal to <paramref name="offset"/> + <paramref name="count"/>.</param>
+		/// <param name="offset">The <paramref name="worldVertices"/> index to begin writing values.</param>
+		/// <param name="stride">The number of <paramref name="worldVertices"/> entries between the value pairs written.</param>
+		public virtual void ComputeWorldVertices (Skeleton skeleton, Slot slot, int start, int count, float[] worldVertices, int offset, int stride = 2) {
+			count = offset + (count >> 1) * stride;
+			ExposedList<float> deformArray = slot.AppliedPose.deform;
+			float[] vertices = this.vertices;
+			int[] bones = this.bones;
+			if (bones == null) {
+				if (deformArray.Count > 0) vertices = deformArray.Items;
+				BonePose bone = slot.bone.AppliedPose;
+				float x = bone.worldX, y = bone.worldY;
+				float a = bone.a, b = bone.b, c = bone.c, d = bone.d;
+				for (int vv = start, w = offset; w < count; vv += 2, w += stride) {
+					float vx = vertices[vv], vy = vertices[vv + 1];
+					worldVertices[w] = vx * a + vy * b + x;
+					worldVertices[w + 1] = vx * c + vy * d + y;
+				}
+				return;
+			}
+			int v = 0, skip = 0;
+			for (int i = 0; i < start; i += 2) {
+				int n = bones[v];
+				v += n + 1;
+				skip += n;
+			}
+			Bone[] skeletonBones = skeleton.bones.Items;
+			if (deformArray.Count == 0) {
+				for (int w = offset, b = skip * 3; w < count; w += stride) {
+					float wx = 0, wy = 0;
+					int n = bones[v++];
+					n += v;
+					for (; v < n; v++, b += 3) {
+						BonePose bone = skeletonBones[bones[v]].AppliedPose;
+						float vx = vertices[b], vy = vertices[b + 1], weight = vertices[b + 2];
+						wx += (vx * bone.a + vy * bone.b + bone.worldX) * weight;
+						wy += (vx * bone.c + vy * bone.d + bone.worldY) * weight;
+					}
+					worldVertices[w] = wx;
+					worldVertices[w + 1] = wy;
+				}
+			} else {
+				float[] deform = deformArray.Items;
+				for (int w = offset, b = skip * 3, f = skip << 1; w < count; w += stride) {
+					float wx = 0, wy = 0;
+					int n = bones[v++];
+					n += v;
+					for (; v < n; v++, b += 3, f += 2) {
+						BonePose bone = skeletonBones[bones[v]].AppliedPose;
+						float vx = vertices[b] + deform[f], vy = vertices[b + 1] + deform[f + 1], weight = vertices[b + 2];
+						wx += (vx * bone.a + vy * bone.b + bone.worldX) * weight;
+						wy += (vx * bone.c + vy * bone.d + bone.worldY) * weight;
+					}
+					worldVertices[w] = wx;
+					worldVertices[w + 1] = wy;
+				}
+			}
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/Attachments/VertexAttachment.cs.meta

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Assets/Spine/Runtime/spine-csharp/BlendMode.cs

@@ -0,0 +1,34 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+namespace Spine {
+	public enum BlendMode {
+		Normal, Additive, Multiply, Screen
+	}
+}

Assets/Spine/Runtime/spine-csharp/BlendMode.cs.meta

@@ -0,0 +1,12 @@
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+guid: b08ef68b8e39f40498ef24ef12cca281
+timeCreated: 1456265155
+licenseType: Free
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+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/Bone.cs

@@ -0,0 +1,69 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+
+	/// <summary>
+	/// The current pose for a bone, before constraints are applied.
+	/// <para>
+	/// A bone has a local transform which is used to compute its world transform. A bone also has an applied transform, which is a
+	/// local transform that can be applied to compute the world transform. The local transform and applied transform may differ if a
+	/// constraint or application code modifies the world transform after it was computed from the local transform.
+	/// </para>
+	/// </summary>
+	public class Bone : PosedActive<BoneData, BoneLocal, BonePose> {
+		static public bool yDown;
+
+		internal Bone parent;
+		internal ExposedList<Bone> children = new ExposedList<Bone>(4);
+
+		internal bool sorted;
+
+		public Bone (BoneData data, Bone parent)
+			: base(data, new BonePose(), new BonePose()) {
+			this.parent = parent;
+			applied.bone = this;
+			constrained.bone = this;
+		}
+
+		/// <summary>
+		/// Copy constructor. Does not copy the <see cref="Children"/> bones.
+		/// </summary>
+		public Bone (Bone bone, Bone parent)
+			: this(bone.data, parent) {
+			pose.Set(bone.pose);
+		}
+
+		public Bone Parent { get { return parent; } }
+		public ExposedList<Bone> Children { get { return children; } }
+
+	}
+}

Assets/Spine/Runtime/spine-csharp/Bone.cs.meta

@@ -0,0 +1,12 @@
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Assets/Spine/Runtime/spine-csharp/BoneData.cs

@@ -0,0 +1,89 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+
+	/// <summary>
+	/// The setup pose for a bone.
+	/// </summary>
+	public class BoneData : PosedData<BoneLocal> {
+		internal int index;
+		internal BoneData parent;
+		internal float length;
+
+		/// <param name="parent">May be null.</param>
+		public BoneData (int index, string name, BoneData parent)
+			: base(name, new BoneLocal()) {
+
+			if (index < 0) throw new ArgumentException("index must be >= 0", "index");
+			if (name == null) throw new ArgumentNullException("name", "name cannot be null.");
+			this.index = index;
+			this.parent = parent;
+		}
+
+		/// <summary>Copy constructor.</summary>
+		/// <param name="parent">May be null.</param>
+		public BoneData (BoneData data, BoneData parent)
+			: this(data.index, data.name, parent) {
+			length = data.length;
+			setup.Set(data.setup);
+		}
+
+		/// <summary>The index of the bone in Skeleton.Bones</summary>
+		public int Index { get { return index; } }
+
+		/// <summary>May be null.</summary>
+		public BoneData Parent { get { return parent; } }
+
+		public float Length { get { return length; } set { length = value; } }
+	}
+
+	/// <summary>
+	/// Determines how a bone inherits world transforms from parent bones.
+	/// </summary>
+	public enum Inherit {
+		Normal,
+		OnlyTranslation,
+		NoRotationOrReflection,
+		NoScale,
+		NoScaleOrReflection
+	}
+
+	public class InheritEnum {
+		public static readonly Inherit[] Values = {
+			Inherit.Normal,
+			Inherit.OnlyTranslation,
+			Inherit.NoRotationOrReflection,
+			Inherit.NoScale,
+			Inherit.NoScaleOrReflection
+		};
+	}
+}

Assets/Spine/Runtime/spine-csharp/BoneData.cs.meta

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Assets/Spine/Runtime/spine-csharp/BoneLocal.cs

@@ -0,0 +1,74 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+	/// <summary>
+	/// Stores a bone's local pose.
+	/// </summary>
+	public class BoneLocal : IPose<BoneLocal> {
+		internal float x, y, rotation, scaleX, scaleY, shearX, shearY;
+		internal Inherit inherit;
+
+		public void Set (BoneLocal pose) {
+			if (pose == null) throw new ArgumentNullException("pose", "pose cannot be null.");
+			x = pose.x;
+			y = pose.y;
+			rotation = pose.rotation;
+			scaleX = pose.scaleX;
+			scaleY = pose.scaleY;
+			shearX = pose.shearX;
+			shearY = pose.shearY;
+			inherit = pose.inherit;
+		}
+
+		/// <summary>The local X translation.</summary>
+		public float X { get { return x; } set { x = value; } }
+		/// <summary>The local Y translation.</summary>
+		public float Y { get { return y; } set { y = value; } }
+		/// <summary>The local rotation.</summary>
+		public float Rotation { get { return rotation; } set { rotation = value; } }
+
+		/// <summary>The local scaleX.</summary>
+		public float ScaleX { get { return scaleX; } set { scaleX = value; } }
+
+		/// <summary>The local scaleY.</summary>
+		public float ScaleY { get { return scaleY; } set { scaleY = value; } }
+
+		/// <summary>The local shearX.</summary>
+		public float ShearX { get { return shearX; } set { shearX = value; } }
+
+		/// <summary>The local shearY.</summary>
+		public float ShearY { get { return shearY; } set { shearY = value; } }
+
+		/// <summary>Determines how parent world transforms affect this bone.</summary>
+		public Inherit Inherit { get { return inherit; } set { inherit = value; } }
+	}
+}

Assets/Spine/Runtime/spine-csharp/BoneLocal.cs.meta

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Assets/Spine/Runtime/spine-csharp/BonePose.cs

@@ -0,0 +1,380 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+
+	/// <summary>
+	/// The applied pose for a bone. This is the <see cref="Bone"/> pose with constraints applied and the world transform computed by
+	/// <see cref="Skeleton.UpdateWorldTransform(Physics)"/>.
+	/// </summary>
+	public class BonePose : BoneLocal, IUpdate {
+		public Bone bone;
+		internal float a, b, worldX;
+		internal float c, d, worldY;
+		internal int world, local;
+
+		/// <summary>
+		/// Called by <see cref="Skeleton.UpdateCache()"/> to compute the world transform, if needed.
+		/// </summary>
+		public void Update (Skeleton skeleton, Physics physics) {
+			if (world != skeleton.update) UpdateWorldTransform(skeleton);
+		}
+
+		/// <summary>Computes the world transform using the parent bone's applied pose and this pose. Child bones are not updated.
+		/// <para>
+		/// See <a href="http://esotericsoftware.com/spine-runtime-skeletons#World-transforms">World transforms</a> in the Spine
+		/// Runtimes Guide.</para></summary>
+		public void UpdateWorldTransform (Skeleton skeleton) {
+			if (local == skeleton.update)
+				UpdateLocalTransform(skeleton);
+			else
+				world = skeleton.update;
+
+			if (bone.parent == null) { // Root bone.
+				float sx = skeleton.scaleX, sy = skeleton.ScaleY;
+				float rx = (rotation + shearX) * MathUtils.DegRad;
+				float ry = (rotation + 90 + shearY) * MathUtils.DegRad;
+				a = (float)Math.Cos(rx) * scaleX * sx;
+				b = (float)Math.Cos(ry) * scaleY * sx;
+				c = (float)Math.Sin(rx) * scaleX * sy;
+				d = (float)Math.Sin(ry) * scaleY * sy;
+				worldX = x * sx + skeleton.x;
+				worldY = y * sy + skeleton.y;
+				return;
+			}
+
+			BonePose parent = bone.parent.applied;
+			float pa = parent.a, pb = parent.b, pc = parent.c, pd = parent.d;
+			worldX = pa * x + pb * y + parent.worldX;
+			worldY = pc * x + pd * y + parent.worldY;
+
+			switch (inherit) {
+			case Inherit.Normal: {
+				float rx = (rotation + shearX) * MathUtils.DegRad;
+				float ry = (rotation + 90 + shearY) * MathUtils.DegRad;
+				float la = (float)Math.Cos(rx) * scaleX;
+				float lb = (float)Math.Cos(ry) * scaleY;
+				float lc = (float)Math.Sin(rx) * scaleX;
+				float ld = (float)Math.Sin(ry) * scaleY;
+				a = pa * la + pb * lc;
+				b = pa * lb + pb * ld;
+				c = pc * la + pd * lc;
+				d = pc * lb + pd * ld;
+				return;
+			}
+			case Inherit.OnlyTranslation: {
+				float rx = (rotation + shearX) * MathUtils.DegRad;
+				float ry = (rotation + 90 + shearY) * MathUtils.DegRad;
+				a = (float)Math.Cos(rx) * scaleX;
+				b = (float)Math.Cos(ry) * scaleY;
+				c = (float)Math.Sin(rx) * scaleX;
+				d = (float)Math.Sin(ry) * scaleY;
+				break;
+			}
+			case Inherit.NoRotationOrReflection: {
+				float sx = 1 / skeleton.scaleX, sy = 1 / skeleton.ScaleY;
+				pa *= sx;
+				pc *= sy;
+				float s = pa * pa + pc * pc, prx;
+				if (s > 0.0001f) {
+					s = Math.Abs(pa * pd * sy - pb * sx * pc) / s;
+					pb = pc * s;
+					pd = pa * s;
+					prx = MathUtils.Atan2Deg(pc, pa);
+				} else {
+					pa = 0;
+					pc = 0;
+					prx = 90 - MathUtils.Atan2Deg(pd, pb);
+				}
+				float rx = (rotation + shearX - prx) * MathUtils.DegRad;
+				float ry = (rotation + shearY - prx + 90) * MathUtils.DegRad;
+				float la = (float)Math.Cos(rx) * scaleX;
+				float lb = (float)Math.Cos(ry) * scaleY;
+				float lc = (float)Math.Sin(rx) * scaleX;
+				float ld = (float)Math.Sin(ry) * scaleY;
+				a = pa * la - pb * lc;
+				b = pa * lb - pb * ld;
+				c = pc * la + pd * lc;
+				d = pc * lb + pd * ld;
+				break;
+			}
+			case Inherit.NoScale:
+			case Inherit.NoScaleOrReflection: {
+				float r = rotation * MathUtils.DegRad, cos = (float)Math.Cos(r), sin = (float)Math.Sin(r);
+				float za = (pa * cos + pb * sin) / skeleton.scaleX;
+				float zc = (pc * cos + pd * sin) / skeleton.ScaleY;
+				float s = (float)Math.Sqrt(za * za + zc * zc);
+				if (s > 0.00001f) s = 1 / s;
+				za *= s;
+				zc *= s;
+				s = (float)Math.Sqrt(za * za + zc * zc);
+				if (inherit == Inherit.NoScale && (pa * pd - pb * pc < 0) != (skeleton.scaleX < 0 != skeleton.ScaleY < 0)) s = -s;
+				r = MathUtils.PI / 2 + MathUtils.Atan2(zc, za);
+				float zb = (float)Math.Cos(r) * s;
+				float zd = (float)Math.Sin(r) * s;
+				float rx = shearX * MathUtils.DegRad;
+				float ry = (90 + shearY) * MathUtils.DegRad;
+				float la = (float)Math.Cos(rx) * scaleX;
+				float lb = (float)Math.Cos(ry) * scaleY;
+				float lc = (float)Math.Sin(rx) * scaleX;
+				float ld = (float)Math.Sin(ry) * scaleY;
+				a = za * la + zb * lc;
+				b = za * lb + zb * ld;
+				c = zc * la + zd * lc;
+				d = zc * lb + zd * ld;
+				break;
+			}
+			}
+			a *= skeleton.scaleX;
+			b *= skeleton.scaleX;
+			c *= skeleton.ScaleY;
+			d *= skeleton.ScaleY;
+		}
+
+		/// <summary>
+		/// Computes the local transform values from the world transform.
+		/// <para>
+		/// If the world transform is modified (by a constraint, <see cref="RotateWorld(float)"/>, etc) then this method should be called so
+		/// the local transform matches the world transform. The local transform may be needed by other code (eg to apply another
+		/// constraint). </para>
+		/// <para>
+		/// Some information is ambiguous in the world transform, such as - 1,-1 scale versus 180 rotation.The local transform after
+		/// calling this method is equivalent to the local transform used to compute the world transform, but may not be identical.
+		/// </para></summary>
+		public void UpdateLocalTransform (Skeleton skeleton) {
+			local = 0;
+			world = skeleton.update;
+
+			if (bone.parent == null) {
+				x = worldX - skeleton.x;
+				y = worldY - skeleton.y;
+				float a = this.a, b = this.b, c = this.c, d = this.d;
+				rotation = MathUtils.Atan2Deg(c, a);
+				scaleX = (float)Math.Sqrt(a * a + c * c);
+				scaleY = (float)Math.Sqrt(b * b + d * d);
+				shearX = 0;
+				shearY = MathUtils.Atan2Deg(a * b + c * d, a * d - b * c);
+				return;
+			}
+
+			BonePose parent = bone.parent.applied;
+			float pa = parent.a, pb = parent.b, pc = parent.c, pd = parent.d;
+			float pid = 1 / (pa * pd - pb * pc);
+			float ia = pd * pid, ib = pb * pid, ic = pc * pid, id = pa * pid;
+			float dx = worldX - parent.worldX, dy = worldY - parent.worldY;
+			x = (dx * ia - dy * ib);
+			y = (dy * id - dx * ic);
+
+			float ra, rb, rc, rd;
+			if (inherit == Inherit.OnlyTranslation) {
+				ra = a;
+				rb = b;
+				rc = c;
+				rd = d;
+			} else {
+				switch (inherit) {
+				case Inherit.NoRotationOrReflection: {
+					float s = Math.Abs(pa * pd - pb * pc) / (pa * pa + pc * pc);
+					pb = -pc * skeleton.scaleX * s / skeleton.ScaleY;
+					pd = pa * skeleton.ScaleY * s / skeleton.scaleX;
+					pid = 1 / (pa * pd - pb * pc);
+					ia = pd * pid;
+					ib = pb * pid;
+					break;
+				}
+				case Inherit.NoScale:
+				case Inherit.NoScaleOrReflection: {
+					float r = rotation * MathUtils.DegRad, cos = (float)Math.Cos(r), sin = (float)Math.Sin(r);
+					pa = (pa * cos + pb * sin) / skeleton.scaleX;
+					pc = (pc * cos + pd * sin) / skeleton.ScaleY;
+					float s = (float)Math.Sqrt(pa * pa + pc * pc);
+					if (s > 0.00001f) s = 1 / s;
+					pa *= s;
+					pc *= s;
+					s = (float)Math.Sqrt(pa * pa + pc * pc);
+					if (inherit == Inherit.NoScale && pid < 0 != (skeleton.scaleX < 0 != skeleton.ScaleY < 0)) s = -s;
+					r = MathUtils.PI / 2 + MathUtils.Atan2(pc, pa);
+					pb = (float)Math.Cos(r) * s;
+					pd = (float)Math.Sin(r) * s;
+					pid = 1 / (pa * pd - pb * pc);
+					ia = pd * pid;
+					ib = pb * pid;
+					ic = pc * pid;
+					id = pa * pid;
+					break;
+				}
+				}
+				ra = ia * a - ib * c;
+				rb = ia * b - ib * d;
+				rc = id * c - ic * a;
+				rd = id * d - ic * b;
+			}
+
+			shearX = 0;
+			scaleX = (float)Math.Sqrt(ra * ra + rc * rc);
+			if (scaleX > 0.0001f) {
+				float det = ra * rd - rb * rc;
+				scaleY = det / scaleX;
+				shearY = -MathUtils.Atan2Deg(ra * rb + rc * rd, det);
+				rotation = MathUtils.Atan2Deg(rc, ra);
+			} else {
+				scaleX = 0;
+				scaleY = (float)Math.Sqrt(rb * rb + rd * rd);
+				shearY = 0;
+				rotation = 90 - MathUtils.Atan2Deg(rd, rb);
+			}
+		}
+
+		/// <summary>
+		/// If the world transform has been modified and the local transform no longer matches, <see cref="UpdateLocalTransform(Skeleton)"/>
+		/// is called.
+		/// </summary>
+		public void ValidateLocalTransform (Skeleton skeleton) {
+			if (local == skeleton.update) UpdateLocalTransform(skeleton);
+		}
+
+		internal void ModifyLocal (Skeleton skeleton) {
+			if (local == skeleton.update) UpdateLocalTransform(skeleton);
+			world = 0;
+			ResetWorld(skeleton.update);
+		}
+
+		internal void ModifyWorld (int update) {
+			local = update;
+			world = update;
+			ResetWorld(update);
+		}
+
+		internal void ResetWorld (int update) {
+			Bone[] children = bone.children.Items;
+			for (int i = 0, n = bone.children.Count; i < n; i++) {
+				BonePose child = children[i].applied;
+				if (child.world == update) {
+					child.world = 0;
+					child.local = 0;
+					child.ResetWorld(update);
+				}
+			}
+		}
+
+		/// <summary>Part of the world transform matrix for the X axis. If changed, <see cref="UpdateLocalTransform(Skeleton)"/> should be called.</summary>
+		public float A { get { return a; } set { a = value; } }
+		/// <summary>Part of the world transform matrix for the Y axis. If changed, <see cref="UpdateLocalTransform(Skeleton)"/> should be called.</summary>
+		public float B { get { return b; } set { b = value; } }
+		/// <summary>Part of the world transform matrix for the X axis. If changed, <see cref="UpdateLocalTransform(Skeleton)"/> should be called.</summary>
+		public float C { get { return c; } set { c = value; } }
+		/// <summary>Part of the world transform matrix for the Y axis. If changed, <see cref="UpdateLocalTransform(Skeleton)"/> should be called.</summary>
+		public float D { get { return d; } set { d = value; } }
+
+		/// <summary>The world X position. If changed, <see cref="UpdateLocalTransform(Skeleton)"/> should be called.</summary>
+		public float WorldX { get { return worldX; } set { worldX = value; } }
+		/// <summary>The world Y position. If changed, <see cref="UpdateLocalTransform(Skeleton)"/> should be called.</summary>
+		public float WorldY { get { return worldY; } set { worldY = value; } }
+		/// <summary>The world rotation for the X axis, calculated using <see cref="a"/> and <see cref="c"/>.</summary>
+		public float WorldRotationX { get { return MathUtils.Atan2Deg(c, a); } }
+		/// <summary>The world rotation for the Y axis, calculated using <see cref="b"/> and <see cref="d"/>.</summary>
+		public float WorldRotationY { get { return MathUtils.Atan2Deg(d, b); } }
+
+		/// <summary>Returns the magnitude (always positive) of the world scale X, calculated using <see cref="a"/> and <see cref="c"/>.</summary>
+		public float WorldScaleX { get { return (float)Math.Sqrt(a * a + c * c); } }
+		/// <summary>Returns the magnitude (always positive) of the world scale Y, calculated using <see cref="b"/> and <see cref="d"/>.</summary>
+		public float WorldScaleY { get { return (float)Math.Sqrt(b * b + d * d); } }
+
+		/// <summary>Transforms a point from world coordinates to the bone's local coordinates.</summary>
+		public void WorldToLocal (float worldX, float worldY, out float localX, out float localY) {
+			float a = this.a, b = this.b, c = this.c, d = this.d;
+			float det = a * d - b * c;
+			float x = worldX - this.worldX, y = worldY - this.worldY;
+			localX = (x * d - y * b) / det;
+			localY = (y * a - x * c) / det;
+		}
+
+		/// <summary>Transforms a point from the bone's local coordinates to world coordinates.</summary>
+		public void LocalToWorld (float localX, float localY, out float worldX, out float worldY) {
+			worldX = localX * a + localY * b + this.worldX;
+			worldY = localX * c + localY * d + this.worldY;
+		}
+
+		/// <summary>Transforms a point from world coordinates to the parent bone's local coordinates.</summary>
+		public void WorldToParent (float worldX, float worldY, out float parentX, out float parentY) {
+			if (bone.parent == null) {
+				parentX = worldX;
+				parentY = worldY;
+			} else {
+				bone.parent.applied.WorldToLocal(worldX, worldY, out parentX, out parentY);
+			}
+		}
+
+		/// <summary>Transforms a point from the parent bone's coordinates to world coordinates.</summary>
+		public void ParentToWorld (float parentX, float parentY, out float worldX, out float worldY) {
+			if (bone.parent == null) {
+				worldX = parentX;
+				worldY = parentY;
+			} else {
+				bone.parent.applied.LocalToWorld(parentX, parentY, out worldX, out worldY);
+			}
+		}
+
+		/// <summary>Transforms a world rotation to a local rotation.</summary>
+		public float WorldToLocalRotation (float worldRotation) {
+			worldRotation *= MathUtils.DegRad;
+			float sin = (float)Math.Sin(worldRotation), cos = (float)Math.Cos(worldRotation);
+			return MathUtils.Atan2Deg(a * sin - c * cos, d * cos - b * sin) + rotation - shearX;
+		}
+
+		/// <summary>Transforms a local rotation to a world rotation.</summary>
+		public float LocalToWorldRotation (float localRotation) {
+			localRotation = (localRotation - rotation - shearX) * MathUtils.DegRad;
+			float sin = (float)Math.Sin(localRotation), cos = (float)Math.Cos(localRotation);
+			return MathUtils.Atan2Deg(cos * c + sin * d, cos * a + sin * b);
+		}
+
+		/// <summary>
+		/// Rotates the world transform the specified amount.
+		/// <para>
+		/// After changes are made to the world transform, <see cref="UpdateLocalTransform(Skeleton)"/> should be called on this bone and any
+		/// child bones, recursively.
+		/// </para></summary>
+		public void RotateWorld (float degrees) {
+			degrees *= MathUtils.DegRad;
+			float sin = (float)Math.Sin(degrees), cos = (float)Math.Cos(degrees);
+			float ra = a, rb = b;
+			a = cos * ra - sin * c;
+			b = cos * rb - sin * d;
+			c = sin * ra + cos * c;
+			d = sin * rb + cos * d;
+		}
+
+		override public string ToString () {
+			return bone.data.name;
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/BonePose.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 024ad131f32a77e45bc91fc1599a8e0f

Assets/Spine/Runtime/spine-csharp/ColorMono.cs

@@ -0,0 +1,108 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#if UNITY_5_3_OR_NEWER
+#define IS_UNITY
+#endif
+
+#if !IS_UNITY
+namespace Spine {
+	/// <summary>
+	/// 32 bit floating point color to be used with XNA/Monogame.
+	/// </summary>
+	public struct Color32F {
+		public float r, g, b, a;
+
+		public Color32F (float r, float g, float b, float a = 1.0f) {
+			this.r = r;
+			this.g = g;
+			this.b = b;
+			this.a = a;
+		}
+
+		public Color32F (Microsoft.Xna.Framework.Color xnaColor)
+			: this(xnaColor.R / 255f, xnaColor.G / 255f, xnaColor.B / 255f, xnaColor.A / 255f) {
+		}
+
+		public static implicit operator Color32F (Microsoft.Xna.Framework.Color xnaColor) {
+			return new Color32F(xnaColor);
+		}
+
+		public static implicit operator Microsoft.Xna.Framework.Color (Color32F c) {
+			return new Microsoft.Xna.Framework.Color(
+				(byte)(c.r * 255),
+				(byte)(c.g * 255),
+				(byte)(c.b * 255),
+				(byte)(c.a * 255)
+			);
+		}
+
+		public override string ToString () {
+			return string.Format("RGBA({0}, {1}, {2}, {3})", r, g, b, a);
+		}
+
+		public static Color32F operator + (Color32F c1, Color32F c2) {
+			return new Color32F(c1.r + c2.r, c1.g + c2.g, c1.b + c2.b, c1.a + c2.a);
+		}
+
+		public static Color32F operator - (Color32F c1, Color32F c2) {
+			return new Color32F(c1.r - c2.r, c1.g - c2.g, c1.b - c2.b, c1.a - c2.a);
+		}
+
+		public static Color32F operator * (Color32F c1, Color32F c2) {
+			return new Color32F(c1.r * c2.r, c1.g * c2.g, c1.b * c2.b, c1.a * c2.a);
+		}
+	}
+
+	static class ColorExtensions {
+		public static Color32F Clamp (this Color32F color) {
+			color.r = MathUtils.Clamp(color.r, 0, 1);
+			color.g = MathUtils.Clamp(color.g, 0, 1);
+			color.b = MathUtils.Clamp(color.b, 0, 1);
+			color.a = MathUtils.Clamp(color.a, 0, 1);
+			return color;
+		}
+
+		public static Color32F RGBA8888ToColor (this uint rgba8888) {
+			float r = ((rgba8888 & 0xff000000) >> 24) / 255f;
+			float g = ((rgba8888 & 0x00ff0000) >> 16) / 255f;
+			float b = ((rgba8888 & 0x0000ff00) >> 8) / 255f;
+			float a = ((rgba8888 & 0x000000ff)) / 255f;
+			return new Color32F(r, g, b, a);
+		}
+
+		public static Color32F XRGB888ToColor (this uint xrgb888) {
+			float r = ((xrgb888 & 0x00ff0000) >> 16) / 255f;
+			float g = ((xrgb888 & 0x0000ff00) >> 8) / 255f;
+			float b = ((xrgb888 & 0x000000ff)) / 255f;
+			return new Color32F(r, g, b);
+		}
+	}
+}
+#endif

Assets/Spine/Runtime/spine-csharp/ColorMono.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 3eb49ca43afc71d41bdadef9155891e0

Assets/Spine/Runtime/spine-csharp/ColorOther.cs

@@ -0,0 +1,91 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#if UNITY_5_3_OR_NEWER
+#define IS_UNITY
+#endif
+
+#if !IS_UNITY
+namespace Spine {
+	/// <summary>
+	/// 32 bit floating point color to be used with other game toolkits than Unity and XNA/Monogame.
+	/// </summary>
+	public struct Color32F {
+		public float r, g, b, a;
+
+		public Color32F (float r, float g, float b, float a = 1.0f) {
+			this.r = r;
+			this.g = g;
+			this.b = b;
+			this.a = a;
+		}
+
+		public override string ToString () {
+			return string.Format("RGBA({0}, {1}, {2}, {3})", r, g, b, a);
+		}
+
+		public static Color32F operator + (Color32F c1, Color32F c2) {
+			return new Color32F(c1.r + c2.r, c1.g + c2.g, c1.b + c2.b, c1.a + c2.a);
+		}
+
+		public static Color32F operator - (Color32F c1, Color32F c2) {
+			return new Color32F(c1.r - c2.r, c1.g - c2.g, c1.b - c2.b, c1.a - c2.a);
+		}
+
+		public static Color32F operator * (Color32F c1, Color32F c2) {
+			return new Color32F(c1.r * c2.r, c1.g * c2.g, c1.b * c2.b, c1.a * c2.a);
+		}
+	}
+
+	static class ColorExtensions {
+		public static Color32F Clamp (this Color32F color) {
+			color.r = MathUtils.Clamp(color.r, 0, 1);
+			color.g = MathUtils.Clamp(color.g, 0, 1);
+			color.b = MathUtils.Clamp(color.b, 0, 1);
+			color.a = MathUtils.Clamp(color.a, 0, 1);
+			return color;
+		}
+
+		public static Color32F RGBA8888ToColor (this uint rgba8888) {
+			float r = ((rgba8888 & 0xff000000) >> 24) / 255f;
+			float g = ((rgba8888 & 0x00ff0000) >> 16) / 255f;
+			float b = ((rgba8888 & 0x0000ff00) >> 8) / 255f;
+			float a = ((rgba8888 & 0x000000ff)) / 255f;
+			return new Color32F(r, g, b, a);
+		}
+
+		public static Color32F XRGB888ToColor (this uint xrgb888) {
+			float r = ((xrgb888 & 0x00ff0000) >> 16) / 255f;
+			float g = ((xrgb888 & 0x0000ff00) >> 8) / 255f;
+			float b = ((xrgb888 & 0x000000ff)) / 255f;
+			return new Color32F(r, g, b);
+		}
+	}
+}
+#endif

Assets/Spine/Runtime/spine-csharp/ColorOther.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: b6c7cc15ba45b0045a609f65b360220a

Assets/Spine/Runtime/spine-csharp/ColorUnity.cs

@@ -0,0 +1,63 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#if UNITY_5_3_OR_NEWER
+#define IS_UNITY
+#endif
+
+#if IS_UNITY
+namespace Spine {
+	using Color32F = UnityEngine.Color;
+
+	static class ColorExtensions {
+		public static Color32F Clamp (this Color32F color) {
+			color.r = MathUtils.Clamp(color.r, 0, 1);
+			color.g = MathUtils.Clamp(color.g, 0, 1);
+			color.b = MathUtils.Clamp(color.b, 0, 1);
+			color.a = MathUtils.Clamp(color.a, 0, 1);
+			return color;
+		}
+
+		public static Color32F RGBA8888ToColor(this uint rgba8888) {
+			float r = ((rgba8888 & 0xff000000) >> 24) / 255f;
+			float g = ((rgba8888 & 0x00ff0000) >> 16) / 255f;
+			float b = ((rgba8888 & 0x0000ff00) >> 8) / 255f;
+			float a = ((rgba8888 & 0x000000ff)) / 255f;
+			return new Color32F(r, g, b, a);
+		}
+
+		public static Color32F XRGB888ToColor (this uint xrgb888) {
+			float r = ((xrgb888 & 0x00ff0000) >> 16) / 255f;
+			float g = ((xrgb888 & 0x0000ff00) >> 8) / 255f;
+			float b = ((xrgb888 & 0x000000ff)) / 255f;
+			return new Color32F(r, g, b);
+		}
+	}
+}
+#endif

Assets/Spine/Runtime/spine-csharp/ColorUnity.cs.meta

@@ -0,0 +1,2 @@
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+guid: c96d35d696c85a44ab68037d151dde5d

Assets/Spine/Runtime/spine-csharp/Constraint.cs

@@ -0,0 +1,63 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+	public interface IConstraint : IPosedActive, IPosed {
+		IConstraintData IData { get; }
+		IConstraint Copy (Skeleton skeleton);
+		bool IsSourceActive { get; }
+		void Sort (Skeleton skeleton);
+		void Update (Skeleton skeleton, Physics physics);
+	}
+
+	/// <summary>
+	/// <para>
+	/// Stores the current pose for an IK constraint. An IK constraint adjusts the rotation of 1 or 2 constrained bones so the tip of
+	/// the last bone is as close to the target bone as possible.</para>
+	/// <para>
+	/// See <a href="http://esotericsoftware.com/spine-ik-constraints">IK constraints</a> in the Spine User Guide.</para>
+	/// </summary>
+	public abstract class Constraint<T, D, P> : PosedActive<D, P, P>, IUpdate, IConstraint
+		where T : Constraint<T, D, P>
+		where D : ConstraintData<T, P>
+		where P : IPose<P> {
+
+		public Constraint (D data, P pose, P constrained)
+			: base(data, pose, constrained) {
+		}
+
+		public IConstraintData IData { get { return data; } }
+		abstract public IConstraint Copy (Skeleton skeleton);
+		abstract public void Sort (Skeleton skeleton);
+		public virtual bool IsSourceActive { get { return true; } }
+		abstract public void Update (Skeleton skeleton, Physics physics);
+	}
+}

Assets/Spine/Runtime/spine-csharp/Constraint.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 66115e19768098240ace7f8ad9cb4d4c

Assets/Spine/Runtime/spine-csharp/ConstraintData.cs

@@ -0,0 +1,49 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+using System.Collections.Generic;
+
+namespace Spine {
+
+	public interface IConstraintData : IPosedData {
+		string Name { get; }
+		IConstraint Create (Skeleton skeleton);
+	}
+
+	public abstract class ConstraintData<T, P> : PosedData<P>, IConstraintData
+		where T : IConstraint
+		where P : IPose<P> {
+		public ConstraintData (string name, P setup)
+			: base(name, setup) {
+		}
+
+		abstract public IConstraint Create (Skeleton skeleton);
+	}
+}

Assets/Spine/Runtime/spine-csharp/ConstraintData.cs.meta

@@ -0,0 +1,12 @@
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+guid: 510354e70dba52c49b35b2c27cd8ed3c
+timeCreated: 1560867071
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/Event.cs

@@ -0,0 +1,65 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+	/// <summary>Stores the current pose values for an Event.</summary>
+	public class Event {
+		internal readonly EventData data;
+		internal readonly float time;
+		internal int intValue;
+		internal float floatValue;
+		internal string stringValue;
+		internal float volume;
+		internal float balance;
+
+		/// <summary>The event's setup pose data.</summary>
+		public EventData Data { get { return data; } }
+		/// <summary>The animation time this event was keyed.</summary>
+		public float Time { get { return time; } }
+
+		public int Int { get { return intValue; } set { intValue = value; } }
+		public float Float { get { return floatValue; } set { floatValue = value; } }
+		public string String { get { return stringValue; } set { stringValue = value; } }
+
+		public float Volume { get { return volume; } set { volume = value; } }
+		public float Balance { get { return balance; } set { balance = value; } }
+
+		public Event (float time, EventData data) {
+			if (data == null) throw new ArgumentNullException("data", "data cannot be null.");
+			this.time = time;
+			this.data = data;
+		}
+
+		override public string ToString () {
+			return this.data.Name;
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/Event.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: dec0d9d780605944eb4514125ab6350b
+timeCreated: 1456265155
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/EventData.cs

@@ -0,0 +1,56 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+	/// <summary>Stores the setup pose values for an Event.</summary>
+	public class EventData {
+		internal string name;
+
+		/// <summary>The name of the event, which is unique across all events in the skeleton.</summary>
+		public string Name { get { return name; } }
+		public int Int { get; set; }
+		public float Float { get; set; }
+		public string @String { get; set; }
+
+		public string AudioPath { get; set; }
+		public float Volume { get; set; }
+		public float Balance { get; set; }
+
+		public EventData (string name) {
+			if (name == null) throw new ArgumentNullException("name", "name cannot be null.");
+			this.name = name;
+		}
+
+		override public string ToString () {
+			return Name;
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/EventData.cs.meta

@@ -0,0 +1,12 @@
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+guid: 37bbfb9fb268a644ba75052961a42b81
+timeCreated: 1456265153
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/ExposedList.cs

@@ -0,0 +1,646 @@
+//
+// System.Collections.Generic.List
+//
+// Authors:
+//    Ben Maurer (bmaurer@ximian.com)
+//    Martin Baulig (martin@ximian.com)
+//    Carlos Alberto Cortez (calberto.cortez@gmail.com)
+//    David Waite (mass@akuma.org)
+//
+// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
+// Copyright (C) 2005 David Waite
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Diagnostics;
+
+namespace Spine {
+	[DebuggerDisplay("Count={Count}")]
+	public class ExposedList<T> : IEnumerable<T> {
+		public T[] Items;
+		public int Count;
+		private const int DefaultCapacity = 4;
+		private static readonly T[] EmptyArray = new T[0];
+		private int version;
+
+		public ExposedList () {
+			Items = EmptyArray;
+		}
+
+		public ExposedList (IEnumerable<T> collection) {
+			CheckCollection(collection);
+
+			// initialize to needed size (if determinable)
+			ICollection<T> c = collection as ICollection<T>;
+			if (c == null) {
+				Items = EmptyArray;
+				AddEnumerable(collection);
+			} else {
+				Items = new T[c.Count];
+				AddCollection(c);
+			}
+		}
+
+		public ExposedList (int capacity) {
+			if (capacity < 0)
+				throw new ArgumentOutOfRangeException("capacity");
+			Items = new T[capacity];
+		}
+
+		internal ExposedList (T[] data, int size) {
+			Items = data;
+			Count = size;
+		}
+
+		public void Add (T item) {
+			// If we check to see if we need to grow before trying to grow
+			// we can speed things up by 25%
+			if (Count == Items.Length)
+				GrowIfNeeded(1);
+			Items[Count++] = item;
+			version++;
+		}
+
+		public void GrowIfNeeded (int addedCount) {
+			int minimumSize = Count + addedCount;
+			if (minimumSize > Items.Length)
+				Capacity = Math.Max(Math.Max(Capacity * 2, DefaultCapacity), minimumSize);
+		}
+
+		public ExposedList<T> Resize (int newSize) {
+			int itemsLength = Items.Length;
+			T[] oldItems = Items;
+			if (newSize > itemsLength) {
+				Array.Resize(ref Items, newSize);
+			} else if (newSize < itemsLength) {
+				// Allow nulling of T reference type to allow GC.
+				for (int i = newSize; i < itemsLength; i++)
+					oldItems[i] = default(T);
+			}
+			Count = newSize;
+			return this;
+		}
+
+		public ExposedList<T> EnsureSize (int newSize) {
+			int itemsLength = Items.Length;
+			if (newSize > itemsLength) {
+				Array.Resize(ref Items, newSize);
+			}
+			Count = newSize;
+			return this;
+		}
+
+		public void EnsureCapacity (int min) {
+			if (Items.Length < min) {
+				int newCapacity = Items.Length == 0 ? DefaultCapacity : Items.Length * 2;
+				//if ((uint)newCapacity > Array.MaxArrayLength) newCapacity = Array.MaxArrayLength;
+				if (newCapacity < min) newCapacity = min;
+				Capacity = newCapacity;
+			}
+		}
+
+		private void CheckRange (int index, int count) {
+			if (index < 0)
+				throw new ArgumentOutOfRangeException("index");
+
+			if (count < 0)
+				throw new ArgumentOutOfRangeException("count");
+
+			if ((uint)index + (uint)count > (uint)Count)
+				throw new ArgumentException("index and count exceed length of list");
+		}
+
+		private void AddCollection (ICollection<T> collection) {
+			int collectionCount = collection.Count;
+			if (collectionCount == 0)
+				return;
+
+			GrowIfNeeded(collectionCount);
+			collection.CopyTo(Items, Count);
+			Count += collectionCount;
+		}
+
+		private void AddEnumerable (IEnumerable<T> enumerable) {
+			foreach (T t in enumerable) {
+				Add(t);
+			}
+		}
+
+		// Additional overload provided because ExposedList<T> only implements IEnumerable<T>,
+		// leading to sub-optimal behavior: It grows multiple times as it assumes not
+		// to know the final size ahead of insertion.
+		public void AddRange (ExposedList<T> list) {
+			CheckCollection(list);
+
+			int collectionCount = list.Count;
+			if (collectionCount == 0)
+				return;
+
+			GrowIfNeeded(collectionCount);
+			list.CopyTo(Items, Count);
+			Count += collectionCount;
+
+			version++;
+		}
+
+		public void AddRange (IEnumerable<T> collection) {
+			CheckCollection(collection);
+
+			ICollection<T> c = collection as ICollection<T>;
+			if (c != null)
+				AddCollection(c);
+			else
+				AddEnumerable(collection);
+			version++;
+		}
+
+		public int BinarySearch (T item) {
+			return Array.BinarySearch<T>(Items, 0, Count, item);
+		}
+
+		public int BinarySearch (T item, IComparer<T> comparer) {
+			return Array.BinarySearch<T>(Items, 0, Count, item, comparer);
+		}
+
+		public int BinarySearch (int index, int count, T item, IComparer<T> comparer) {
+			CheckRange(index, count);
+			return Array.BinarySearch<T>(Items, index, count, item, comparer);
+		}
+
+		public void Clear (bool clearArray = true) {
+			if (clearArray)
+				Array.Clear(Items, 0, Items.Length);
+
+			Count = 0;
+			version++;
+		}
+
+		public bool Contains (T item) {
+			return Array.IndexOf<T>(Items, item, 0, Count) != -1;
+		}
+
+		public ExposedList<TOutput> ConvertAll<TOutput> (Converter<T, TOutput> converter) {
+			if (converter == null)
+				throw new ArgumentNullException("converter");
+			ExposedList<TOutput> u = new ExposedList<TOutput>(Count);
+			u.Count = Count;
+			T[] items = Items;
+			TOutput[] uItems = u.Items;
+			for (int i = 0; i < Count; i++)
+				uItems[i] = converter(items[i]);
+			return u;
+		}
+
+		public void CopyTo (T[] array) {
+			Array.Copy(Items, 0, array, 0, Count);
+		}
+
+		public void CopyTo (T[] array, int arrayIndex) {
+			Array.Copy(Items, 0, array, arrayIndex, Count);
+		}
+
+		public void CopyTo (int index, T[] array, int arrayIndex, int count) {
+			CheckRange(index, count);
+			Array.Copy(Items, index, array, arrayIndex, count);
+		}
+
+		public bool Exists (Predicate<T> match) {
+			CheckMatch(match);
+			return GetIndex(0, Count, match) != -1;
+		}
+
+		public T Find (Predicate<T> match) {
+			CheckMatch(match);
+			int i = GetIndex(0, Count, match);
+			return (i != -1) ? Items[i] : default(T);
+		}
+
+		private static void CheckMatch (Predicate<T> match) {
+			if (match == null)
+				throw new ArgumentNullException("match");
+		}
+
+		public ExposedList<T> FindAll (Predicate<T> match) {
+			CheckMatch(match);
+			return FindAllList(match);
+		}
+
+		private ExposedList<T> FindAllList (Predicate<T> match) {
+			ExposedList<T> results = new ExposedList<T>();
+			for (int i = 0; i < Count; i++)
+				if (match(Items[i]))
+					results.Add(Items[i]);
+
+			return results;
+		}
+
+		public int FindIndex (Predicate<T> match) {
+			CheckMatch(match);
+			return GetIndex(0, Count, match);
+		}
+
+		public int FindIndex (int startIndex, Predicate<T> match) {
+			CheckMatch(match);
+			CheckIndex(startIndex);
+			return GetIndex(startIndex, Count - startIndex, match);
+		}
+
+		public int FindIndex (int startIndex, int count, Predicate<T> match) {
+			CheckMatch(match);
+			CheckRange(startIndex, count);
+			return GetIndex(startIndex, count, match);
+		}
+
+		private int GetIndex (int startIndex, int count, Predicate<T> match) {
+			int end = startIndex + count;
+			for (int i = startIndex; i < end; i++)
+				if (match(Items[i]))
+					return i;
+
+			return -1;
+		}
+
+		public T FindLast (Predicate<T> match) {
+			CheckMatch(match);
+			int i = GetLastIndex(0, Count, match);
+			return i == -1 ? default(T) : Items[i];
+		}
+
+		public int FindLastIndex (Predicate<T> match) {
+			CheckMatch(match);
+			return GetLastIndex(0, Count, match);
+		}
+
+		public int FindLastIndex (int startIndex, Predicate<T> match) {
+			CheckMatch(match);
+			CheckIndex(startIndex);
+			return GetLastIndex(0, startIndex + 1, match);
+		}
+
+		public int FindLastIndex (int startIndex, int count, Predicate<T> match) {
+			CheckMatch(match);
+			int start = startIndex - count + 1;
+			CheckRange(start, count);
+			return GetLastIndex(start, count, match);
+		}
+
+		private int GetLastIndex (int startIndex, int count, Predicate<T> match) {
+			// unlike FindLastIndex, takes regular params for search range
+			for (int i = startIndex + count; i != startIndex;)
+				if (match(Items[--i]))
+					return i;
+			return -1;
+		}
+
+		public void ForEach (Action<T> action) {
+			if (action == null)
+				throw new ArgumentNullException("action");
+			for (int i = 0; i < Count; i++)
+				action(Items[i]);
+		}
+
+		public Enumerator GetEnumerator () {
+			return new Enumerator(this);
+		}
+
+		public ExposedList<T> GetRange (int index, int count) {
+			CheckRange(index, count);
+			T[] tmpArray = new T[count];
+			Array.Copy(Items, index, tmpArray, 0, count);
+			return new ExposedList<T>(tmpArray, count);
+		}
+
+		public int IndexOf (T item) {
+			return Array.IndexOf<T>(Items, item, 0, Count);
+		}
+
+		public int IndexOf (T item, int index) {
+			CheckIndex(index);
+			return Array.IndexOf<T>(Items, item, index, Count - index);
+		}
+
+		public int IndexOf (T item, int index, int count) {
+			if (index < 0)
+				throw new ArgumentOutOfRangeException("index");
+
+			if (count < 0)
+				throw new ArgumentOutOfRangeException("count");
+
+			if ((uint)index + (uint)count > (uint)Count)
+				throw new ArgumentOutOfRangeException("index and count exceed length of list");
+
+			return Array.IndexOf<T>(Items, item, index, count);
+		}
+
+		private void Shift (int start, int delta) {
+			if (delta < 0)
+				start -= delta;
+
+			if (start < Count)
+				Array.Copy(Items, start, Items, start + delta, Count - start);
+
+			Count += delta;
+
+			if (delta < 0)
+				Array.Clear(Items, Count, -delta);
+		}
+
+		private void CheckIndex (int index) {
+			if (index < 0 || (uint)index > (uint)Count)
+				throw new ArgumentOutOfRangeException("index");
+		}
+
+		public void Insert (int index, T item) {
+			CheckIndex(index);
+			if (Count == Items.Length)
+				GrowIfNeeded(1);
+			Shift(index, 1);
+			Items[index] = item;
+			version++;
+		}
+
+		private void CheckCollection (IEnumerable<T> collection) {
+			if (collection == null)
+				throw new ArgumentNullException("collection");
+		}
+
+		public void InsertRange (int index, IEnumerable<T> collection) {
+			CheckCollection(collection);
+			CheckIndex(index);
+			if (collection == this) {
+				T[] buffer = new T[Count];
+				CopyTo(buffer, 0);
+				GrowIfNeeded(Count);
+				Shift(index, buffer.Length);
+				Array.Copy(buffer, 0, Items, index, buffer.Length);
+			} else {
+				ICollection<T> c = collection as ICollection<T>;
+				if (c != null)
+					InsertCollection(index, c);
+				else
+					InsertEnumeration(index, collection);
+			}
+			version++;
+		}
+
+		private void InsertCollection (int index, ICollection<T> collection) {
+			int collectionCount = collection.Count;
+			GrowIfNeeded(collectionCount);
+
+			Shift(index, collectionCount);
+			collection.CopyTo(Items, index);
+		}
+
+		private void InsertEnumeration (int index, IEnumerable<T> enumerable) {
+			foreach (T t in enumerable)
+				Insert(index++, t);
+		}
+
+		public int LastIndexOf (T item) {
+			return Array.LastIndexOf<T>(Items, item, Count - 1, Count);
+		}
+
+		public int LastIndexOf (T item, int index) {
+			CheckIndex(index);
+			return Array.LastIndexOf<T>(Items, item, index, index + 1);
+		}
+
+		public int LastIndexOf (T item, int index, int count) {
+			if (index < 0)
+				throw new ArgumentOutOfRangeException("index", index, "index is negative");
+
+			if (count < 0)
+				throw new ArgumentOutOfRangeException("count", count, "count is negative");
+
+			if (index - count + 1 < 0)
+				throw new ArgumentOutOfRangeException("count", count, "count is too large");
+
+			return Array.LastIndexOf<T>(Items, item, index, count);
+		}
+
+		public bool Remove (T item) {
+			int loc = IndexOf(item);
+			if (loc != -1)
+				RemoveAt(loc);
+
+			return loc != -1;
+		}
+
+		public int RemoveAll (Predicate<T> match) {
+			CheckMatch(match);
+			int i = 0;
+			int j = 0;
+
+			// Find the first item to remove
+			for (i = 0; i < Count; i++)
+				if (match(Items[i]))
+					break;
+
+			if (i == Count)
+				return 0;
+
+			version++;
+
+			// Remove any additional items
+			for (j = i + 1; j < Count; j++) {
+				if (!match(Items[j]))
+					Items[i++] = Items[j];
+			}
+			if (j - i > 0)
+				Array.Clear(Items, i, j - i);
+
+			Count = i;
+			return (j - i);
+		}
+
+		public void RemoveAt (int index) {
+			if (index < 0 || (uint)index >= (uint)Count)
+				throw new ArgumentOutOfRangeException("index");
+			Shift(index, -1);
+			Array.Clear(Items, Count, 1);
+			version++;
+		}
+
+		// Spine Added Method
+		// Based on Stack<T>.Pop(); https://referencesource.microsoft.com/#mscorlib/system/collections/stack.cs
+		/// <summary>Pops the last item of the list. If the list is empty, Pop throws an InvalidOperationException.</summary>
+		public T Pop () {
+			if (Count == 0)
+				throw new InvalidOperationException("List is empty. Nothing to pop.");
+
+			int i = Count - 1;
+			T item = Items[i];
+			Items[i] = default(T);
+			Count--;
+			version++;
+			return item;
+		}
+
+		public void RemoveRange (int index, int count) {
+			CheckRange(index, count);
+			if (count > 0) {
+				Shift(index, -count);
+				Array.Clear(Items, Count, count);
+				version++;
+			}
+		}
+
+		public void Reverse () {
+			Array.Reverse(Items, 0, Count);
+			version++;
+		}
+
+		public void Reverse (int index, int count) {
+			CheckRange(index, count);
+			Array.Reverse(Items, index, count);
+			version++;
+		}
+
+		public void Sort () {
+			Array.Sort<T>(Items, 0, Count, Comparer<T>.Default);
+			version++;
+		}
+
+		public void Sort (IComparer<T> comparer) {
+			Array.Sort<T>(Items, 0, Count, comparer);
+			version++;
+		}
+
+		public void Sort (Comparison<T> comparison) {
+			Array.Sort<T>(Items, comparison);
+			version++;
+		}
+
+		public void Sort (int index, int count, IComparer<T> comparer) {
+			CheckRange(index, count);
+			Array.Sort<T>(Items, index, count, comparer);
+			version++;
+		}
+
+		public T[] ToArray () {
+			T[] t = new T[Count];
+			Array.Copy(Items, t, Count);
+
+			return t;
+		}
+
+		public void TrimExcess () {
+			Capacity = Count;
+		}
+
+		public bool TrueForAll (Predicate<T> match) {
+			CheckMatch(match);
+
+			for (int i = 0; i < Count; i++)
+				if (!match(Items[i]))
+					return false;
+
+			return true;
+		}
+
+		public int Capacity {
+			get {
+				return Items.Length;
+			}
+			set {
+				if ((uint)value < (uint)Count)
+					throw new ArgumentOutOfRangeException();
+
+				Array.Resize(ref Items, value);
+			}
+		}
+
+		#region Interface implementations.
+
+		IEnumerator<T> IEnumerable<T>.GetEnumerator () {
+			return GetEnumerator();
+		}
+
+		IEnumerator IEnumerable.GetEnumerator () {
+			return GetEnumerator();
+		}
+
+		#endregion
+
+		public struct Enumerator : IEnumerator<T>, IDisposable {
+			private ExposedList<T> l;
+			private int next;
+			private int ver;
+			private T current;
+
+			internal Enumerator (ExposedList<T> l)
+				: this() {
+				this.l = l;
+				ver = l.version;
+			}
+
+			public void Dispose () {
+				l = null;
+			}
+
+			private void VerifyState () {
+				if (l == null)
+					throw new ObjectDisposedException(GetType().FullName);
+				if (ver != l.version)
+					throw new InvalidOperationException(
+							"Collection was modified; enumeration operation may not execute.");
+			}
+
+			public bool MoveNext () {
+				VerifyState();
+
+				if (next < 0)
+					return false;
+
+				if (next < l.Count) {
+					current = l.Items[next++];
+					return true;
+				}
+
+				next = -1;
+				return false;
+			}
+
+			public T Current {
+				get {
+					return current;
+				}
+			}
+
+			void IEnumerator.Reset () {
+				VerifyState();
+				next = 0;
+			}
+
+			object IEnumerator.Current {
+				get {
+					VerifyState();
+					if (next <= 0)
+						throw new InvalidOperationException();
+					return current;
+				}
+			}
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/ExposedList.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 89690af94a880744989712505f2957b1
+timeCreated: 1456265154
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/IPose.cs

@@ -0,0 +1,36 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+	public interface IPose<P> {
+		void Set (P pose);
+	}
+}

Assets/Spine/Runtime/spine-csharp/IPose.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 114be1b77921d6645ac5974d5b33f2eb

Assets/Spine/Runtime/spine-csharp/IUpdate.cs

@@ -0,0 +1,37 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+namespace Spine {
+
+	/// <summary>The interface for items updated by <see cref="Skeleton.UpdateWorldTransform(Physics)"/>.</summary>
+	public interface IUpdate {
+		/// <param name="physics">Determines how physics and other non-deterministic updates are applied.</param>
+		void Update (Skeleton skeleton, Physics physics);
+	}
+}

Assets/Spine/Runtime/spine-csharp/IUpdate.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: fba7d1e93605e0f499b6208390e798c2
+timeCreated: 1560785125
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/IkConstraint.cs

@@ -0,0 +1,319 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+
+	/// <summary>
+	/// <para>
+	/// Stores the current pose for an IK constraint. An IK constraint adjusts the rotation of 1 or 2 constrained bones so the tip of
+	/// the last bone is as close to the target bone as possible.</para>
+	/// <para>
+	/// See <a href="http://esotericsoftware.com/spine-ik-constraints">IK constraints</a> in the Spine User Guide.</para>
+	/// </summary>
+	public class IkConstraint : Constraint<IkConstraint, IkConstraintData, IkConstraintPose> {
+		internal readonly ExposedList<BonePose> bones;
+		internal Bone target;
+
+		public IkConstraint (IkConstraintData data, Skeleton skeleton)
+			: base(data, new IkConstraintPose(), new IkConstraintPose()) {
+			if (skeleton == null) throw new ArgumentNullException("skeleton", "skeleton cannot be null.");
+
+			bones = new ExposedList<BonePose>(data.bones.Count);
+			foreach (BoneData boneData in data.bones)
+				bones.Add(skeleton.bones.Items[boneData.index].constrained);
+
+			target = skeleton.bones.Items[data.target.index];
+		}
+
+		override public IConstraint Copy (Skeleton skeleton) {
+			var copy = new IkConstraint(data, skeleton);
+			copy.pose.Set(pose);
+			return copy;
+		}
+
+		/// <summary>Applies the constraint to the constrained bones.</summary>
+		override public void Update (Skeleton skeleton, Physics physics) {
+			IkConstraintPose p = applied;
+			if (p.mix == 0) return;
+			BonePose target = this.target.applied;
+			BonePose[] bones = this.bones.Items;
+			switch (this.bones.Count) {
+			case 1:
+				Apply(skeleton, bones[0], target.worldX, target.worldY, p.compress, p.stretch, data.uniform, p.mix);
+				break;
+			case 2:
+				Apply(skeleton, bones[0], bones[1], target.worldX, target.worldY, p.bendDirection, p.stretch, data.uniform,
+					p.softness, p.mix);
+				break;
+			}
+		}
+
+		override public void Sort (Skeleton skeleton) {
+			skeleton.SortBone(target);
+			Bone parent = bones.Items[0].bone;
+			skeleton.SortBone(parent);
+			skeleton.updateCache.Add(this);
+			parent.sorted = false;
+			skeleton.SortReset(parent.children);
+			skeleton.Constrained(parent);
+			if (bones.Count > 1) skeleton.Constrained(bones.Items[1].bone);
+		}
+
+		override public bool IsSourceActive { get { return target.active; } }
+
+		/// <summary>The bones that will be modified by this IK constraint.</summary>
+		public ExposedList<BonePose> Bones {
+			get { return bones; }
+		}
+
+		/// <summary>The bone that is the IK target.</summary>
+		public Bone Target {
+			get { return target; }
+			set { target = value; }
+		}
+
+		/// <summary>Applies 1 bone IK. The target is specified in the world coordinate system.</summary>
+		static public void Apply (Skeleton skeleton, BonePose bone, float targetX, float targetY, bool compress, bool stretch,
+			bool uniform, float mix) {
+			if (bone == null) throw new ArgumentNullException("bone", "bone cannot be null.");
+			bone.ModifyLocal(skeleton);
+			BonePose p = bone.bone.parent.applied;
+
+			float pa = p.a, pb = p.b, pc = p.c, pd = p.d;
+			float rotationIK = -bone.shearX - bone.rotation, tx, ty;
+			switch (bone.inherit) {
+			case Inherit.OnlyTranslation:
+				tx = (targetX - bone.worldX) * Math.Sign(skeleton.ScaleX);
+				ty = (targetY - bone.worldY) * Math.Sign(skeleton.ScaleY);
+				break;
+			case Inherit.NoRotationOrReflection: {
+				float s = Math.Abs(pa * pd - pb * pc) / Math.Max(0.0001f, pa * pa + pc * pc);
+				float sa = pa / skeleton.scaleX;
+				float sc = pc / skeleton.ScaleY;
+				pb = -sc * s * skeleton.scaleX;
+				pd = sa * s * skeleton.ScaleY;
+				rotationIK += MathUtils.Atan2Deg(sc, sa);
+				goto default; // Fall through.
+			}
+			default: {
+				float x = targetX - p.worldX, y = targetY - p.worldY;
+				float d = pa * pd - pb * pc;
+				if (Math.Abs(d) <= 0.0001f) {
+					tx = 0;
+					ty = 0;
+				} else {
+					tx = (x * pd - y * pb) / d - bone.x;
+					ty = (y * pa - x * pc) / d - bone.y;
+				}
+				break;
+			}
+			}
+
+			rotationIK += MathUtils.Atan2Deg(ty, tx);
+			if (bone.scaleX < 0) rotationIK += 180;
+			if (rotationIK > 180)
+				rotationIK -= 360;
+			else if (rotationIK < -180) //
+				rotationIK += 360;
+			bone.rotation += rotationIK * mix;
+			if (compress || stretch) {
+				switch (bone.inherit) {
+				case Inherit.NoScale:
+				case Inherit.NoScaleOrReflection:
+					tx = targetX - bone.worldX;
+					ty = targetY - bone.worldY;
+					break;
+				}
+				float b = bone.bone.data.length * bone.scaleX;
+				if (b > 0.0001f) {
+					float dd = tx * tx + ty * ty;
+					if ((compress && dd < b * b) || (stretch && dd > b * b)) {
+						float s = ((float)Math.Sqrt(dd) / b - 1) * mix + 1;
+						bone.scaleX *= s;
+						if (uniform) bone.scaleY *= s;
+					}
+				}
+			}
+		}
+
+		/// <summary>Applies 2 bone IK. The target is specified in the world coordinate system.</summary>
+		/// <param name="child">A direct descendant of the parent bone.</param>
+		static public void Apply (Skeleton skeleton, BonePose parent, BonePose child, float targetX, float targetY, int bendDir,
+			bool stretch, bool uniform, float softness, float mix) {
+			if (parent == null) throw new ArgumentNullException("parent", "parent cannot be null.");
+			if (child == null) throw new ArgumentNullException("child", "child cannot be null.");
+			if (parent.inherit != Inherit.Normal || child.inherit != Inherit.Normal) return;
+			parent.ModifyLocal(skeleton);
+			child.ModifyLocal(skeleton);
+			float px = parent.x, py = parent.y, psx = parent.scaleX, psy = parent.scaleY, csx = child.scaleX;
+			int os1, os2, s2;
+			if (psx < 0) {
+				psx = -psx;
+				os1 = 180;
+				s2 = -1;
+			} else {
+				os1 = 0;
+				s2 = 1;
+			}
+			if (psy < 0) {
+				psy = -psy;
+				s2 = -s2;
+			}
+			if (csx < 0) {
+				csx = -csx;
+				os2 = 180;
+			} else
+				os2 = 0;
+			float cwx, cwy, a = parent.a, b = parent.b, c = parent.c, d = parent.d;
+			bool u = Math.Abs(psx - psy) <= 0.0001f;
+			if (!u || stretch) {
+				child.y = 0;
+				cwx = a * child.x + parent.worldX;
+				cwy = c * child.x + parent.worldY;
+			} else {
+				cwx = a * child.x + b * child.y + parent.worldX;
+				cwy = c * child.x + d * child.y + parent.worldY;
+			}
+			BonePose pp = parent.bone.parent.applied;
+			a = pp.a;
+			b = pp.b;
+			c = pp.c;
+			d = pp.d;
+			float id = a * d - b * c, x = cwx - pp.worldX, y = cwy - pp.worldY;
+			id = Math.Abs(id) <= 0.0001f ? 0 : 1 / id;
+			float dx = (x * d - y * b) * id - px, dy = (y * a - x * c) * id - py;
+			float l1 = (float)Math.Sqrt(dx * dx + dy * dy), l2 = child.bone.data.length * csx, a1, a2;
+			if (l1 < 0.0001f) {
+				Apply(skeleton, parent, targetX, targetY, false, stretch, false, mix);
+				child.rotation = 0;
+				return;
+			}
+			x = targetX - pp.worldX;
+			y = targetY - pp.worldY;
+			float tx = (x * d - y * b) * id - px, ty = (y * a - x * c) * id - py;
+			float dd = tx * tx + ty * ty;
+			if (softness != 0) {
+				softness *= psx * (csx + 1) * 0.5f;
+				float td = (float)Math.Sqrt(dd), sd = td - l1 - l2 * psx + softness;
+				if (sd > 0) {
+					float p = Math.Min(1, sd / (softness * 2)) - 1;
+					p = (sd - softness * (1 - p * p)) / td;
+					tx -= p * tx;
+					ty -= p * ty;
+					dd = tx * tx + ty * ty;
+				}
+			}
+			if (u) {
+				l2 *= psx;
+				float cos = (dd - l1 * l1 - l2 * l2) / (2 * l1 * l2);
+				if (cos < -1) {
+					cos = -1;
+					a2 = MathUtils.PI * bendDir;
+				} else if (cos > 1) {
+					cos = 1;
+					a2 = 0;
+					if (stretch) {
+						a = ((float)Math.Sqrt(dd) / (l1 + l2) - 1) * mix + 1;
+						parent.scaleX *= a;
+						if (uniform) parent.scaleY *= a;
+					}
+				} else
+					a2 = (float)Math.Acos(cos) * bendDir;
+				a = l1 + l2 * cos;
+				b = l2 * (float)Math.Sin(a2);
+				a1 = (float)Math.Atan2(ty * a - tx * b, tx * a + ty * b);
+			} else {
+				a = psx * l2;
+				b = psy * l2;
+				float aa = a * a, bb = b * b, ta = (float)Math.Atan2(ty, tx);
+				c = bb * l1 * l1 + aa * dd - aa * bb;
+				float c1 = -2 * bb * l1, c2 = bb - aa;
+				d = c1 * c1 - 4 * c2 * c;
+				if (d >= 0) {
+					float q = (float)Math.Sqrt(d);
+					if (c1 < 0) q = -q;
+					q = -(c1 + q) * 0.5f;
+					float r0 = q / c2, r1 = c / q;
+					float r = Math.Abs(r0) < Math.Abs(r1) ? r0 : r1;
+					r0 = dd - r * r;
+					if (r0 >= 0) {
+						y = (float)Math.Sqrt(r0) * bendDir;
+						a1 = ta - (float)Math.Atan2(y, r);
+						a2 = (float)Math.Atan2(y / psy, (r - l1) / psx);
+						goto break_outer; // break outer;
+					}
+				}
+				float minAngle = MathUtils.PI, minX = l1 - a, minDist = minX * minX, minY = 0;
+				float maxAngle = 0, maxX = l1 + a, maxDist = maxX * maxX, maxY = 0;
+				c = -a * l1 / (aa - bb);
+				if (c >= -1 && c <= 1) {
+					c = (float)Math.Acos(c);
+					x = a * (float)Math.Cos(c) + l1;
+					y = b * (float)Math.Sin(c);
+					d = x * x + y * y;
+					if (d < minDist) {
+						minAngle = c;
+						minDist = d;
+						minX = x;
+						minY = y;
+					}
+					if (d > maxDist) {
+						maxAngle = c;
+						maxDist = d;
+						maxX = x;
+						maxY = y;
+					}
+				}
+				if (dd <= (minDist + maxDist) * 0.5f) {
+					a1 = ta - (float)Math.Atan2(minY * bendDir, minX);
+					a2 = minAngle * bendDir;
+				} else {
+					a1 = ta - (float)Math.Atan2(maxY * bendDir, maxX);
+					a2 = maxAngle * bendDir;
+				}
+			}
+			break_outer:
+			float os = (float)Math.Atan2(child.y, child.x) * s2;
+			a1 = (a1 - os) * MathUtils.RadDeg + os1 - parent.rotation;
+			if (a1 > 180)
+				a1 -= 360;
+			else if (a1 < -180)
+				a1 += 360;
+			parent.rotation += a1 * mix;
+			a2 = ((a2 + os) * MathUtils.RadDeg - child.shearX) * s2 + os2 - child.rotation;
+			if (a2 > 180)
+				a2 -= 360;
+			else if (a2 < -180)
+				a2 += 360;
+			child.rotation += a2 * mix;
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/IkConstraint.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 916f8e6534860cc40824adfc2916baa7
+timeCreated: 1456265155
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/IkConstraintData.cs

@@ -0,0 +1,68 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+using System.Collections.Generic;
+
+namespace Spine {
+	/// <summary>Stores the setup pose for an IkConstraint.</summary>
+	public class IkConstraintData : ConstraintData<IkConstraint, IkConstraintPose> {
+		internal ExposedList<BoneData> bones = new ExposedList<BoneData>(2);
+		internal BoneData target;
+		internal bool uniform;
+
+		public IkConstraintData (string name)
+			: base(name, new IkConstraintPose()) {
+		}
+
+		override public IConstraint Create (Skeleton skeleton) {
+			return new IkConstraint(this, skeleton);
+		}
+
+		/// <summary>The bones that are constrained by this IK Constraint.</summary>
+		public ExposedList<BoneData> Bones {
+			get { return bones; }
+		}
+
+		/// <summary>The bone that is the IK target.</summary>
+		public BoneData Target {
+			get { return target; }
+			set { target = value; }
+		}
+
+		/// <summary>
+		/// When true and <see cref="IkConstraintPose.Compress"/> or <see cref="IkConstraintPose.Stretch"/> is used, the bone is scaled
+		/// on both the X and Y axes.
+		/// </summary>
+		public bool Uniform {
+			get { return uniform; }
+			set { uniform = value; }
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/IkConstraintData.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 94ad1e9256073264785f806086a000ba
+timeCreated: 1456265155
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/IkConstraintPose.cs

@@ -0,0 +1,87 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+
+	/// <summary>Stores the current pose for an IK constraint.</summary>
+	public class IkConstraintPose : IPose<IkConstraintPose> {
+		internal int bendDirection;
+		internal bool compress, stretch;
+		internal float mix, softness;
+
+		public void Set (IkConstraintPose pose) {
+			mix = pose.mix;
+			softness = pose.softness;
+			bendDirection = pose.bendDirection;
+			compress = pose.compress;
+			stretch = pose.stretch;
+		}
+
+		/// <summary>A percentage (0-1) that controls the mix between the constrained and unconstrained rotation.
+		/// <para>
+		/// For two bone IK: if the parent bone has local nonuniform scale, the child bone's local Y translation is set to 0.
+		/// </para></summary>
+		public float Mix {
+			get { return mix; }
+			set { mix = value; }
+		}
+
+		/// <summary>For two bone IK, the target bone's distance from the maximum reach of the bones where rotation begins to slow. The bones
+		/// will not straighten completely until the target is this far out of range.</summary>
+		public float Softness {
+			get { return softness; }
+			set { softness = value; }
+		}
+
+		/// <summary>For two bone IK, controls the bend direction of the IK bones, either 1 or -1.</summary>
+		public int BendDirection {
+			get { return bendDirection; }
+			set { bendDirection = value; }
+		}
+
+		/// <summary>For one bone IK, when true and the target is too close, the bone is scaled to reach it.</summary>
+		public bool Compress {
+			get { return compress; }
+			set { compress = value; }
+		}
+
+		/// <summary>When true and the target is out of range, the parent bone is scaled to reach it.
+		/// <para>
+		/// For two bone IK: 1) the child bone's local Y translation is set to 0,
+		/// 2) stretch is not applied if <see cref="Softness"/> is > 0,
+		/// and 3) if the parent bone has local nonuniform scale, stretch is not applied.
+		/// </para></summary>
+		public bool Stretch {
+			get { return stretch; }
+			set { stretch = value; }
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/IkConstraintPose.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: f7b8113cda0e502458c2084ec31e0cca

Assets/Spine/Runtime/spine-csharp/Json.cs

@@ -0,0 +1,517 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Text;
+
+namespace Spine {
+	public static class Json {
+		public static object Deserialize (TextReader text) {
+			SharpJson.JsonDecoder parser = new SharpJson.JsonDecoder();
+			parser.parseNumbersAsFloat = true;
+			return parser.Decode(text.ReadToEnd());
+		}
+	}
+}
+
+/**
+ * Copyright (c) 2016 Adriano Tinoco d'Oliveira Rezende
+ *
+ * Based on the JSON parser by Patrick van Bergen
+ * http://techblog.procurios.nl/k/news/view/14605/14863/how-do-i-write-my-own-parser-(for-json).html
+ *
+ * Changes made:
+ *
+ * - Optimized parser speed (deserialize roughly near 3x faster than original)
+ * - Added support to handle lexer/parser error messages with line numbers
+ * - Added more fine grained control over type conversions during the parsing
+ * - Refactory API (Separate Lexer code from Parser code and the Encoder from Decoder)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ * The above copyright notice and this permission notice shall be included in all copies or substantial
+ * portions of the Software.
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
+ * LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+namespace SharpJson {
+	class Lexer {
+		public enum Token {
+			None,
+			Null,
+			True,
+			False,
+			Colon,
+			Comma,
+			String,
+			Number,
+			CurlyOpen,
+			CurlyClose,
+			SquaredOpen,
+			SquaredClose,
+		};
+
+		public bool hasError {
+			get {
+				return !success;
+			}
+		}
+
+		public int lineNumber {
+			get;
+			private set;
+		}
+
+		public bool parseNumbersAsFloat {
+			get;
+			set;
+		}
+
+		char[] json;
+		int index = 0;
+		bool success = true;
+		char[] stringBuffer = new char[4096];
+
+		public Lexer (string text) {
+			Reset();
+
+			json = text.ToCharArray();
+			parseNumbersAsFloat = false;
+		}
+
+		public void Reset () {
+			index = 0;
+			lineNumber = 1;
+			success = true;
+		}
+
+		public string ParseString () {
+			int idx = 0;
+			StringBuilder builder = null;
+
+			SkipWhiteSpaces();
+
+			// "
+			char c = json[index++];
+
+			bool failed = false;
+			bool complete = false;
+
+			while (!complete && !failed) {
+				if (index == json.Length)
+					break;
+
+				c = json[index++];
+				if (c == '"') {
+					complete = true;
+					break;
+				} else if (c == '\\') {
+					if (index == json.Length)
+						break;
+
+					c = json[index++];
+
+					switch (c) {
+					case '"':
+						stringBuffer[idx++] = '"';
+						break;
+					case '\\':
+						stringBuffer[idx++] = '\\';
+						break;
+					case '/':
+						stringBuffer[idx++] = '/';
+						break;
+					case 'b':
+						stringBuffer[idx++] = '\b';
+						break;
+					case 'f':
+						stringBuffer[idx++] = '\f';
+						break;
+					case 'n':
+						stringBuffer[idx++] = '\n';
+						break;
+					case 'r':
+						stringBuffer[idx++] = '\r';
+						break;
+					case 't':
+						stringBuffer[idx++] = '\t';
+						break;
+					case 'u':
+						int remainingLength = json.Length - index;
+						if (remainingLength >= 4) {
+							string hex = new string(json, index, 4);
+
+							// XXX: handle UTF
+							stringBuffer[idx++] = (char)Convert.ToInt32(hex, 16);
+
+							// skip 4 chars
+							index += 4;
+						} else {
+							failed = true;
+						}
+						break;
+					}
+				} else {
+					stringBuffer[idx++] = c;
+				}
+
+				if (idx >= stringBuffer.Length) {
+					if (builder == null)
+						builder = new StringBuilder();
+
+					builder.Append(stringBuffer, 0, idx);
+					idx = 0;
+				}
+			}
+
+			if (!complete) {
+				success = false;
+				return null;
+			}
+
+			if (builder != null)
+				return builder.ToString();
+			else
+				return new string(stringBuffer, 0, idx);
+		}
+
+		string GetNumberString () {
+			SkipWhiteSpaces();
+
+			int lastIndex = GetLastIndexOfNumber(index);
+			int charLength = (lastIndex - index) + 1;
+
+			string result = new string(json, index, charLength);
+
+			index = lastIndex + 1;
+
+			return result;
+		}
+
+		public float ParseFloatNumber () {
+			float number;
+			string str = GetNumberString();
+
+			if (!float.TryParse(str, NumberStyles.Float, CultureInfo.InvariantCulture, out number))
+				return 0;
+
+			return number;
+		}
+
+		public double ParseDoubleNumber () {
+			double number;
+			string str = GetNumberString();
+
+			if (!double.TryParse(str, NumberStyles.Any, CultureInfo.InvariantCulture, out number))
+				return 0;
+
+			return number;
+		}
+
+		int GetLastIndexOfNumber (int index) {
+			int lastIndex;
+
+			for (lastIndex = index; lastIndex < json.Length; lastIndex++) {
+				char ch = json[lastIndex];
+
+				if ((ch < '0' || ch > '9') && ch != '+' && ch != '-'
+					&& ch != '.' && ch != 'e' && ch != 'E')
+					break;
+			}
+
+			return lastIndex - 1;
+		}
+
+		void SkipWhiteSpaces () {
+			for (; index < json.Length; index++) {
+				char ch = json[index];
+
+				if (ch == '\n')
+					lineNumber++;
+
+				if (!char.IsWhiteSpace(json[index]))
+					break;
+			}
+		}
+
+		public Token LookAhead () {
+			SkipWhiteSpaces();
+
+			int savedIndex = index;
+			return NextToken(json, ref savedIndex);
+		}
+
+		public Token NextToken () {
+			SkipWhiteSpaces();
+			return NextToken(json, ref index);
+		}
+
+		static Token NextToken (char[] json, ref int index) {
+			if (index == json.Length)
+				return Token.None;
+
+			char c = json[index++];
+
+			switch (c) {
+			case '{':
+				return Token.CurlyOpen;
+			case '}':
+				return Token.CurlyClose;
+			case '[':
+				return Token.SquaredOpen;
+			case ']':
+				return Token.SquaredClose;
+			case ',':
+				return Token.Comma;
+			case '"':
+				return Token.String;
+			case '0':
+			case '1':
+			case '2':
+			case '3':
+			case '4':
+			case '5':
+			case '6':
+			case '7':
+			case '8':
+			case '9':
+			case '-':
+				return Token.Number;
+			case ':':
+				return Token.Colon;
+			}
+
+			index--;
+
+			int remainingLength = json.Length - index;
+
+			// false
+			if (remainingLength >= 5) {
+				if (json[index] == 'f' &&
+					json[index + 1] == 'a' &&
+					json[index + 2] == 'l' &&
+					json[index + 3] == 's' &&
+					json[index + 4] == 'e') {
+					index += 5;
+					return Token.False;
+				}
+			}
+
+			// true
+			if (remainingLength >= 4) {
+				if (json[index] == 't' &&
+					json[index + 1] == 'r' &&
+					json[index + 2] == 'u' &&
+					json[index + 3] == 'e') {
+					index += 4;
+					return Token.True;
+				}
+			}
+
+			// null
+			if (remainingLength >= 4) {
+				if (json[index] == 'n' &&
+					json[index + 1] == 'u' &&
+					json[index + 2] == 'l' &&
+					json[index + 3] == 'l') {
+					index += 4;
+					return Token.Null;
+				}
+			}
+
+			return Token.None;
+		}
+	}
+
+	public class JsonDecoder {
+		public string errorMessage {
+			get;
+			private set;
+		}
+
+		public bool parseNumbersAsFloat {
+			get;
+			set;
+		}
+
+		Lexer lexer;
+
+		public JsonDecoder () {
+			errorMessage = null;
+			parseNumbersAsFloat = false;
+		}
+
+		public object Decode (string text) {
+			errorMessage = null;
+
+			lexer = new Lexer(text);
+			lexer.parseNumbersAsFloat = parseNumbersAsFloat;
+
+			return ParseValue();
+		}
+
+		public static object DecodeText (string text) {
+			JsonDecoder builder = new JsonDecoder();
+			return builder.Decode(text);
+		}
+
+		IDictionary<string, object> ParseObject () {
+			Dictionary<string, object> table = new Dictionary<string, object>();
+
+			// {
+			lexer.NextToken();
+
+			while (true) {
+				Lexer.Token token = lexer.LookAhead();
+
+				switch (token) {
+				case Lexer.Token.None:
+					TriggerError("Invalid token");
+					return null;
+				case Lexer.Token.Comma:
+					lexer.NextToken();
+					break;
+				case Lexer.Token.CurlyClose:
+					lexer.NextToken();
+					return table;
+				default:
+					// name
+					string name = EvalLexer(lexer.ParseString());
+
+					if (errorMessage != null)
+						return null;
+
+					// :
+					token = lexer.NextToken();
+
+					if (token != Lexer.Token.Colon) {
+						TriggerError("Invalid token; expected ':'");
+						return null;
+					}
+
+					// value
+					object value = ParseValue();
+
+					if (errorMessage != null)
+						return null;
+
+					table[name] = value;
+					break;
+				}
+			}
+
+			//return null; // Unreachable code
+		}
+
+		IList<object> ParseArray () {
+			List<object> array = new List<object>();
+
+			// [
+			lexer.NextToken();
+
+			while (true) {
+				Lexer.Token token = lexer.LookAhead();
+
+				switch (token) {
+				case Lexer.Token.None:
+					TriggerError("Invalid token");
+					return null;
+				case Lexer.Token.Comma:
+					lexer.NextToken();
+					break;
+				case Lexer.Token.SquaredClose:
+					lexer.NextToken();
+					return array;
+				default:
+					object value = ParseValue();
+
+					if (errorMessage != null)
+						return null;
+
+					array.Add(value);
+					break;
+				}
+			}
+
+			//return null; // Unreachable code
+		}
+
+		object ParseValue () {
+			switch (lexer.LookAhead()) {
+			case Lexer.Token.String:
+				return EvalLexer(lexer.ParseString());
+			case Lexer.Token.Number:
+				if (parseNumbersAsFloat)
+					return EvalLexer(lexer.ParseFloatNumber());
+				else
+					return EvalLexer(lexer.ParseDoubleNumber());
+			case Lexer.Token.CurlyOpen:
+				return ParseObject();
+			case Lexer.Token.SquaredOpen:
+				return ParseArray();
+			case Lexer.Token.True:
+				lexer.NextToken();
+				return true;
+			case Lexer.Token.False:
+				lexer.NextToken();
+				return false;
+			case Lexer.Token.Null:
+				lexer.NextToken();
+				return null;
+			case Lexer.Token.None:
+				break;
+			}
+
+			TriggerError("Unable to parse value");
+			return null;
+		}
+
+		void TriggerError (string message) {
+			errorMessage = string.Format("Error: '{0}' at line {1}",
+										 message, lexer.lineNumber);
+		}
+
+		T EvalLexer<T> (T value) {
+			if (lexer.hasError)
+				TriggerError("Lexical error ocurred");
+
+			return value;
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/Json.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 371f40ecc08b2eb4cbec49585d41e2c3
+timeCreated: 1456265153
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/MathUtils.cs

@@ -0,0 +1,190 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+//#define USE_FAST_SIN_COS_ATAN2_APPROXIMATIONS
+
+using System;
+
+namespace Spine {
+	public static class MathUtils {
+		public const float PI = 3.1415927f;
+		public const float PI2 = PI * 2;
+		public const float InvPI2 = 1 / PI2;
+		public const float RadDeg = 180f / PI;
+		public const float DegRad = PI / 180;
+
+		static Random random = new Random();
+
+#if USE_FAST_SIN_COS_ATAN2_APPROXIMATIONS
+		const int SIN_BITS = 14; // 16KB. Adjust for accuracy.
+		const int SIN_MASK = ~(-1 << SIN_BITS);
+		const int SIN_COUNT = SIN_MASK + 1;
+		const float RadFull = PI * 2;
+		const float DegFull = 360;
+		const float RadToIndex = SIN_COUNT / RadFull;
+		const float DegToIndex = SIN_COUNT / DegFull;
+		static float[] sin = new float[SIN_COUNT];
+
+		static MathUtils () {
+			for (int i = 0; i < SIN_COUNT; i++)
+				sin[i] = (float)Math.Sin((i + 0.5f) / SIN_COUNT * RadFull);
+			for (int i = 0; i < 360; i += 90)
+				sin[(int)(i * DegToIndex) & SIN_MASK] = (float)Math.Sin(i * DegRad);
+		}
+
+		/// <summary>Returns the sine of a given angle in radians from a lookup table.</summary>
+		static public float Sin (float radians) {
+			return sin[(int)(radians * RadToIndex) & SIN_MASK];
+		}
+
+		/// <summary>Returns the cosine of a given angle in radians from a lookup table.</summary>
+		static public float Cos (float radians) {
+			return sin[(int)((radians + PI / 2) * RadToIndex) & SIN_MASK];
+		}
+
+		/// <summary>Returns the sine of a given angle in degrees from a lookup table.</summary>
+		static public float SinDeg (float degrees) {
+			return sin[(int)(degrees * DegToIndex) & SIN_MASK];
+		}
+
+		/// <summary>Returns the cosine of a given angle in degrees from a lookup table.</summary>
+		static public float CosDeg (float degrees) {
+			return sin[(int)((degrees + 90) * DegToIndex) & SIN_MASK];
+		}
+
+		static public float Atan2Deg (float y, float x) {
+			return Atan2(y, x) * RadDeg;
+		}
+
+		/// <summary>Returns atan2 in radians, faster but less accurate than Math.Atan2. Average error of 0.00231 radians (0.1323
+		/// degrees), largest error of 0.00488 radians (0.2796 degrees).</summary>
+		static public float Atan2 (float y, float x) {
+			if (x == 0f) {
+				if (y > 0f) return PI / 2;
+				if (y == 0f) return 0f;
+				return -PI / 2;
+			}
+			float atan, z = y / x;
+			if (Math.Abs(z) < 1f) {
+				atan = z / (1f + 0.28f * z * z);
+				if (x < 0f) return atan + (y < 0f ? -PI : PI);
+				return atan;
+			}
+			atan = PI / 2 - z / (z * z + 0.28f);
+			return y < 0f ? atan - PI : atan;
+		}
+#else
+		/// <summary>Returns the sine of a given angle in radians.</summary>
+		static public float Sin (float radians) {
+			return (float)Math.Sin(radians);
+		}
+
+		/// <summary>Returns the cosine of a given angle in radians.</summary>
+		static public float Cos (float radians) {
+			return (float)Math.Cos(radians);
+		}
+
+		/// <summary>Returns the sine of a given angle in degrees.</summary>
+		static public float SinDeg (float degrees) {
+			return (float)Math.Sin(degrees * DegRad);
+		}
+
+		/// <summary>Returns the cosine of a given angle in degrees.</summary>
+		static public float CosDeg (float degrees) {
+			return (float)Math.Cos(degrees * DegRad);
+		}
+
+
+		static public float Atan2Deg (float y, float x) {
+			return (float)Math.Atan2(y, x) * RadDeg;
+		}
+
+
+		/// <summary>Returns the atan2 using Math.Atan2.</summary>
+		static public float Atan2 (float y, float x) {
+			return (float)Math.Atan2(y, x);
+		}
+#endif
+		static public float Clamp (float value, float min, float max) {
+			if (value < min) return min;
+			if (value > max) return max;
+			return value;
+		}
+
+		static public float Clamp01 (float value) {
+			if (value < 0) return 0;
+			if (value > 1) return 1;
+			return value;
+		}
+
+		static public float RandomTriangle (float min, float max) {
+			return RandomTriangle(min, max, (min + max) * 0.5f);
+		}
+
+		static public float RandomTriangle (float min, float max, float mode) {
+			float u = (float)random.NextDouble();
+			float d = max - min;
+			if (u <= (mode - min) / d) return min + (float)Math.Sqrt(u * d * (mode - min));
+			return max - (float)Math.Sqrt((1 - u) * d * (max - mode));
+		}
+	}
+
+	public abstract class IInterpolation {
+		public static IInterpolation Pow2 = new Pow(2);
+		public static IInterpolation Pow2Out = new PowOut(2);
+
+		protected abstract float Apply (float a);
+
+		public float Apply (float start, float end, float a) {
+			return start + (end - start) * Apply(a);
+		}
+	}
+
+	public class Pow : IInterpolation {
+		public float Power { get; set; }
+
+		public Pow (float power) {
+			Power = power;
+		}
+
+		protected override float Apply (float a) {
+			if (a <= 0.5f) return (float)Math.Pow(a * 2, Power) / 2;
+			return (float)Math.Pow((a - 1) * 2, Power) / (Power % 2 == 0 ? -2 : 2) + 1;
+		}
+	}
+
+	public class PowOut : Pow {
+		public PowOut (float power) : base(power) {
+		}
+
+		protected override float Apply (float a) {
+			return (float)Math.Pow(a - 1, Power) * (Power % 2 == 0 ? -1 : 1) + 1;
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/MathUtils.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 03b653e54c5403b4191f5003d64c6e18
+timeCreated: 1456265153
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/PathConstraint.cs

@@ -0,0 +1,521 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+
+	/// <summary>
+	/// <para>
+	/// Stores the current pose for a path constraint. A path constraint adjusts the rotation, translation, and scale of the
+	/// constrained bones so they follow a <see cref="PathAttachment"/>.</para>
+	/// <para>
+	/// See <a href="http://esotericsoftware.com/spine-path-constraints">Path constraints</a> in the Spine User Guide.</para>
+	/// </summary>
+	public class PathConstraint : Constraint<PathConstraint, PathConstraintData, PathConstraintPose> {
+		const int NONE = -1, BEFORE = -2, AFTER = -3;
+		const float Epsilon = 0.00001f;
+
+		internal readonly ExposedList<BonePose> bones;
+		internal Slot slot;
+
+		internal readonly ExposedList<float> spaces = new ExposedList<float>(), positions = new ExposedList<float>();
+		internal readonly ExposedList<float> world = new ExposedList<float>(), curves = new ExposedList<float>(), lengths = new ExposedList<float>();
+		internal readonly float[] segments = new float[10];
+
+		public PathConstraint (PathConstraintData data, Skeleton skeleton)
+			: base(data, new PathConstraintPose(), new PathConstraintPose()) {
+			if (skeleton == null) throw new ArgumentNullException("skeleton", "skeleton cannot be null.");
+
+			bones = new ExposedList<BonePose>(data.Bones.Count);
+			foreach (BoneData boneData in data.bones)
+				bones.Add(skeleton.bones.Items[boneData.index].constrained);
+
+			slot = skeleton.slots.Items[data.slot.index];
+		}
+
+		override public IConstraint Copy (Skeleton skeleton) {
+			var copy = new PathConstraint(data, skeleton);
+			copy.pose.Set(pose);
+			return copy;
+		}
+
+		public static void ArraysFill (float[] a, int fromIndex, int toIndex, float val) {
+			for (int i = fromIndex; i < toIndex; i++)
+				a[i] = val;
+		}
+
+		override public void Update (Skeleton skeleton, Physics physics) {
+			PathAttachment pathAttachment = slot.applied.Attachment as PathAttachment;
+			if (pathAttachment == null) return;
+
+			PathConstraintPose p = applied;
+			float mixRotate = p.mixRotate, mixX = p.mixX, mixY = p.mixY;
+			if (mixRotate == 0 && mixX == 0 && mixY == 0) return;
+
+			PathConstraintData data = this.data;
+			bool tangents = data.rotateMode == RotateMode.Tangent, scale = data.rotateMode == RotateMode.ChainScale;
+			int boneCount = this.bones.Count, spacesCount = tangents ? boneCount : boneCount + 1;
+			BonePose[] bonesItems = this.bones.Items;
+			float[] spaces = this.spaces.EnsureSize(spacesCount).Items, lengths = scale ? this.lengths.EnsureSize(boneCount).Items : null;
+			float spacing = p.spacing;
+			switch (data.spacingMode) {
+			case SpacingMode.Percent:
+				if (scale) {
+					for (int i = 0, n = spacesCount - 1; i < n; i++) {
+						BonePose bone = bonesItems[i];
+						float setupLength = bone.bone.data.length;
+						float x = setupLength * bone.a, y = setupLength * bone.c;
+						lengths[i] = (float)Math.Sqrt(x * x + y * y);
+					}
+				}
+				ArraysFill(spaces, 1, spacesCount, spacing);
+				break;
+			case SpacingMode.Proportional: {
+				float sum = 0;
+				for (int i = 0, n = spacesCount - 1; i < n;) {
+					BonePose bone = bonesItems[i];
+					float setupLength = bone.bone.data.length;
+					if (setupLength < Epsilon) {
+						if (scale) lengths[i] = 0;
+						spaces[++i] = spacing;
+					} else {
+						float x = setupLength * bone.a, y = setupLength * bone.c;
+						float length = (float)Math.Sqrt(x * x + y * y);
+						if (scale) lengths[i] = length;
+						spaces[++i] = length;
+						sum += length;
+					}
+				}
+				if (sum > 0) {
+					sum = spacesCount / sum * spacing;
+					for (int i = 1; i < spacesCount; i++)
+						spaces[i] *= sum;
+				}
+				break;
+			}
+			default: {
+				bool lengthSpacing = data.spacingMode == SpacingMode.Length;
+				for (int i = 0, n = spacesCount - 1; i < n;) {
+					BonePose bone = bonesItems[i];
+					float setupLength = bone.bone.data.length;
+					if (setupLength < PathConstraint.Epsilon) {
+						if (scale) lengths[i] = 0;
+						spaces[++i] = spacing;
+					} else {
+						float x = setupLength * bone.a, y = setupLength * bone.c;
+						float length = (float)Math.Sqrt(x * x + y * y);
+						if (scale) lengths[i] = length;
+						spaces[++i] = (lengthSpacing ? Math.Max(0, setupLength + spacing) : spacing) * length / setupLength;
+					}
+				}
+				break;
+			}
+			}
+
+			float[] positions = ComputeWorldPositions(skeleton, pathAttachment, spacesCount, tangents);
+			float boneX = positions[0], boneY = positions[1], offsetRotation = data.offsetRotation;
+			bool tip;
+			if (offsetRotation == 0) {
+				tip = data.rotateMode == RotateMode.Chain;
+			} else {
+				tip = false;
+				BonePose bone = slot.bone.applied;
+				offsetRotation *= bone.a * bone.d - bone.b * bone.c > 0 ? MathUtils.DegRad : -MathUtils.DegRad;
+			}
+			for (int i = 0, ip = 3, u = skeleton.update; i < boneCount; i++, ip += 3) {
+				BonePose bone = bonesItems[i];
+				bone.worldX += (boneX - bone.worldX) * mixX;
+				bone.worldY += (boneY - bone.worldY) * mixY;
+				float x = positions[ip], y = positions[ip + 1], dx = x - boneX, dy = y - boneY;
+				if (scale) {
+					float length = lengths[i];
+					if (length >= Epsilon) {
+						float s = ((float)Math.Sqrt(dx * dx + dy * dy) / length - 1) * mixRotate + 1;
+						bone.a *= s;
+						bone.c *= s;
+					}
+				}
+				boneX = x;
+				boneY = y;
+				if (mixRotate > 0) {
+					float a = bone.a, b = bone.b, c = bone.c, d = bone.d, r, cos, sin;
+					if (tangents)
+						r = positions[ip - 1];
+					else if (spaces[i + 1] < Epsilon)
+						r = positions[ip + 2];
+					else
+						r = MathUtils.Atan2(dy, dx);
+					r -= MathUtils.Atan2(c, a);
+					if (tip) {
+						cos = MathUtils.Cos(r);
+						sin = MathUtils.Sin(r);
+						float length = bone.bone.data.length;
+						boneX += (length * (cos * a - sin * c) - dx) * mixRotate;
+						boneY += (length * (sin * a + cos * c) - dy) * mixRotate;
+					} else
+						r += offsetRotation;
+					if (r > MathUtils.PI)
+						r -= MathUtils.PI2;
+					else if (r < -MathUtils.PI) //
+						r += MathUtils.PI2;
+					r *= mixRotate;
+					cos = MathUtils.Cos(r);
+					sin = MathUtils.Sin(r);
+					bone.a = cos * a - sin * c;
+					bone.b = cos * b - sin * d;
+					bone.c = sin * a + cos * c;
+					bone.d = sin * b + cos * d;
+				}
+				bone.ModifyWorld(u);
+			}
+		}
+
+		float[] ComputeWorldPositions (Skeleton skeleton, PathAttachment path, int spacesCount, bool tangents) {
+			Slot slot = this.slot;
+			float position = applied.position;
+			float[] spaces = this.spaces.Items, output = this.positions.EnsureSize(spacesCount * 3 + 2).Items, world;
+			bool closed = path.Closed;
+			int verticesLength = path.WorldVerticesLength, curveCount = verticesLength / 6, prevCurve = NONE;
+
+			float pathLength, multiplier;
+			if (!path.ConstantSpeed) {
+				float[] lengths = path.Lengths;
+				curveCount -= closed ? 1 : 2;
+				pathLength = lengths[curveCount];
+
+				if (data.positionMode == PositionMode.Percent) position *= pathLength;
+
+				switch (data.spacingMode) {
+				case SpacingMode.Percent:
+					multiplier = pathLength;
+					break;
+				case SpacingMode.Proportional:
+					multiplier = pathLength / spacesCount;
+					break;
+				default:
+					multiplier = 1;
+					break;
+				}
+
+				world = this.world.EnsureSize(8).Items;
+				for (int i = 0, o = 0, curve = 0; i < spacesCount; i++, o += 3) {
+					float space = spaces[i] * multiplier;
+					position += space;
+					float p = position;
+
+					if (closed) {
+						p %= pathLength;
+						if (p < 0) p += pathLength;
+						curve = 0;
+					} else if (p < 0) {
+						if (prevCurve != BEFORE) {
+							prevCurve = BEFORE;
+							path.ComputeWorldVertices(skeleton, slot, 2, 4, world, 0, 2);
+						}
+						AddBeforePosition(p, world, 0, output, o);
+						continue;
+					} else if (p > pathLength) {
+						if (prevCurve != AFTER) {
+							prevCurve = AFTER;
+							path.ComputeWorldVertices(skeleton, slot, verticesLength - 6, 4, world, 0, 2);
+						}
+						AddAfterPosition(p - pathLength, world, 0, output, o);
+						continue;
+					}
+
+					// Determine curve containing position.
+					for (; ; curve++) {
+						float length = lengths[curve];
+						if (p > length) continue;
+						if (curve == 0)
+							p /= length;
+						else {
+							float prev = lengths[curve - 1];
+							p = (p - prev) / (length - prev);
+						}
+						break;
+					}
+					if (curve != prevCurve) {
+						prevCurve = curve;
+						if (closed && curve == curveCount) {
+							path.ComputeWorldVertices(skeleton, slot, verticesLength - 4, 4, world, 0, 2);
+							path.ComputeWorldVertices(skeleton, slot, 0, 4, world, 4, 2);
+						} else
+							path.ComputeWorldVertices(skeleton, slot, curve * 6 + 2, 8, world, 0, 2);
+					}
+					AddCurvePosition(p, world[0], world[1], world[2], world[3], world[4], world[5], world[6], world[7], output, o,
+						tangents || (i > 0 && space < Epsilon));
+				}
+				return output;
+			}
+
+			// World vertices.
+			if (closed) {
+				verticesLength += 2;
+				world = this.world.EnsureSize(verticesLength).Items;
+				path.ComputeWorldVertices(skeleton, slot, 2, verticesLength - 4, world, 0, 2);
+				path.ComputeWorldVertices(skeleton, slot, 0, 2, world, verticesLength - 4, 2);
+				world[verticesLength - 2] = world[0];
+				world[verticesLength - 1] = world[1];
+			} else {
+				curveCount--;
+				verticesLength -= 4;
+				world = this.world.EnsureSize(verticesLength).Items;
+				path.ComputeWorldVertices(skeleton, slot, 2, verticesLength, world, 0, 2);
+			}
+
+			// Curve lengths.
+			float[] curves = this.curves.EnsureSize(curveCount).Items;
+			pathLength = 0;
+			float x1 = world[0], y1 = world[1], cx1 = 0, cy1 = 0, cx2 = 0, cy2 = 0, x2 = 0, y2 = 0;
+			float tmpx, tmpy, dddfx, dddfy, ddfx, ddfy, dfx, dfy;
+			for (int i = 0, w = 2; i < curveCount; i++, w += 6) {
+				cx1 = world[w];
+				cy1 = world[w + 1];
+				cx2 = world[w + 2];
+				cy2 = world[w + 3];
+				x2 = world[w + 4];
+				y2 = world[w + 5];
+				tmpx = (x1 - cx1 * 2 + cx2) * 0.1875f;
+				tmpy = (y1 - cy1 * 2 + cy2) * 0.1875f;
+				dddfx = ((cx1 - cx2) * 3 - x1 + x2) * 0.09375f;
+				dddfy = ((cy1 - cy2) * 3 - y1 + y2) * 0.09375f;
+				ddfx = tmpx * 2 + dddfx;
+				ddfy = tmpy * 2 + dddfy;
+				dfx = (cx1 - x1) * 0.75f + tmpx + dddfx * 0.16666667f;
+				dfy = (cy1 - y1) * 0.75f + tmpy + dddfy * 0.16666667f;
+				pathLength += (float)Math.Sqrt(dfx * dfx + dfy * dfy);
+				dfx += ddfx;
+				dfy += ddfy;
+				ddfx += dddfx;
+				ddfy += dddfy;
+				pathLength += (float)Math.Sqrt(dfx * dfx + dfy * dfy);
+				dfx += ddfx;
+				dfy += ddfy;
+				pathLength += (float)Math.Sqrt(dfx * dfx + dfy * dfy);
+				dfx += ddfx + dddfx;
+				dfy += ddfy + dddfy;
+				pathLength += (float)Math.Sqrt(dfx * dfx + dfy * dfy);
+				curves[i] = pathLength;
+				x1 = x2;
+				y1 = y2;
+			}
+
+			if (data.positionMode == PositionMode.Percent) position *= pathLength;
+
+			switch (data.spacingMode) {
+			case SpacingMode.Percent:
+				multiplier = pathLength;
+				break;
+			case SpacingMode.Proportional:
+				multiplier = pathLength / spacesCount;
+				break;
+			default:
+				multiplier = 1;
+				break;
+			}
+
+			float[] segments = this.segments;
+			float curveLength = 0;
+			for (int i = 0, o = 0, curve = 0, segment = 0; i < spacesCount; i++, o += 3) {
+				float space = spaces[i] * multiplier;
+				position += space;
+				float p = position;
+
+				if (closed) {
+					p %= pathLength;
+					if (p < 0) p += pathLength;
+					curve = 0;
+					segment = 0;
+				} else if (p < 0) {
+					AddBeforePosition(p, world, 0, output, o);
+					continue;
+				} else if (p > pathLength) {
+					AddAfterPosition(p - pathLength, world, verticesLength - 4, output, o);
+					continue;
+				}
+
+				// Determine curve containing position.
+				for (; ; curve++) {
+					float length = curves[curve];
+					if (p > length) continue;
+					if (curve == 0)
+						p /= length;
+					else {
+						float prev = curves[curve - 1];
+						p = (p - prev) / (length - prev);
+					}
+					break;
+				}
+
+				// Curve segment lengths.
+				if (curve != prevCurve) {
+					prevCurve = curve;
+					int ii = curve * 6;
+					x1 = world[ii];
+					y1 = world[ii + 1];
+					cx1 = world[ii + 2];
+					cy1 = world[ii + 3];
+					cx2 = world[ii + 4];
+					cy2 = world[ii + 5];
+					x2 = world[ii + 6];
+					y2 = world[ii + 7];
+					tmpx = (x1 - cx1 * 2 + cx2) * 0.03f;
+					tmpy = (y1 - cy1 * 2 + cy2) * 0.03f;
+					dddfx = ((cx1 - cx2) * 3 - x1 + x2) * 0.006f;
+					dddfy = ((cy1 - cy2) * 3 - y1 + y2) * 0.006f;
+					ddfx = tmpx * 2 + dddfx;
+					ddfy = tmpy * 2 + dddfy;
+					dfx = (cx1 - x1) * 0.3f + tmpx + dddfx * 0.16666667f;
+					dfy = (cy1 - y1) * 0.3f + tmpy + dddfy * 0.16666667f;
+					curveLength = (float)Math.Sqrt(dfx * dfx + dfy * dfy);
+					segments[0] = curveLength;
+					for (ii = 1; ii < 8; ii++) {
+						dfx += ddfx;
+						dfy += ddfy;
+						ddfx += dddfx;
+						ddfy += dddfy;
+						curveLength += (float)Math.Sqrt(dfx * dfx + dfy * dfy);
+						segments[ii] = curveLength;
+					}
+					dfx += ddfx;
+					dfy += ddfy;
+					curveLength += (float)Math.Sqrt(dfx * dfx + dfy * dfy);
+					segments[8] = curveLength;
+					dfx += ddfx + dddfx;
+					dfy += ddfy + dddfy;
+					curveLength += (float)Math.Sqrt(dfx * dfx + dfy * dfy);
+					segments[9] = curveLength;
+					segment = 0;
+				}
+
+				// Weight by segment length.
+				p *= curveLength;
+				for (; ; segment++) {
+					float length = segments[segment];
+					if (p > length) continue;
+					if (segment == 0)
+						p /= length;
+					else {
+						float prev = segments[segment - 1];
+						p = segment + (p - prev) / (length - prev);
+					}
+					break;
+				}
+				AddCurvePosition(p * 0.1f, x1, y1, cx1, cy1, cx2, cy2, x2, y2, output, o, tangents || (i > 0 && space < PathConstraint.Epsilon));
+			}
+			return output;
+		}
+
+		static void AddBeforePosition (float p, float[] temp, int i, float[] output, int o) {
+			float x1 = temp[i], y1 = temp[i + 1], dx = temp[i + 2] - x1, dy = temp[i + 3] - y1, r = MathUtils.Atan2(dy, dx);
+			output[o] = x1 + p * MathUtils.Cos(r);
+			output[o + 1] = y1 + p * MathUtils.Sin(r);
+			output[o + 2] = r;
+		}
+
+		static void AddAfterPosition (float p, float[] temp, int i, float[] output, int o) {
+			float x1 = temp[i + 2], y1 = temp[i + 3], dx = x1 - temp[i], dy = y1 - temp[i + 1], r = MathUtils.Atan2(dy, dx);
+			output[o] = x1 + p * MathUtils.Cos(r);
+			output[o + 1] = y1 + p * MathUtils.Sin(r);
+			output[o + 2] = r;
+		}
+
+		static void AddCurvePosition (float p, float x1, float y1, float cx1, float cy1, float cx2, float cy2, float x2, float y2,
+			float[] output, int o, bool tangents) {
+			if (p < PathConstraint.Epsilon || float.IsNaN(p)) {
+				output[o] = x1;
+				output[o + 1] = y1;
+				output[o + 2] = (float)Math.Atan2(cy1 - y1, cx1 - x1);
+				return;
+			}
+			float tt = p * p, ttt = tt * p, u = 1 - p, uu = u * u, uuu = uu * u;
+			float ut = u * p, ut3 = ut * 3, uut3 = u * ut3, utt3 = ut3 * p;
+			float x = x1 * uuu + cx1 * uut3 + cx2 * utt3 + x2 * ttt, y = y1 * uuu + cy1 * uut3 + cy2 * utt3 + y2 * ttt;
+			output[o] = x;
+			output[o + 1] = y;
+			if (tangents) {
+				if (p < 0.001f)
+					output[o + 2] = (float)Math.Atan2(cy1 - y1, cx1 - x1);
+				else
+					output[o + 2] = (float)Math.Atan2(y - (y1 * uu + cy1 * ut * 2 + cy2 * tt), x - (x1 * uu + cx1 * ut * 2 + cx2 * tt));
+			}
+		}
+
+		override public void Sort (Skeleton skeleton) {
+			int slotIndex = slot.Data.index;
+			Bone slotBone = slot.bone;
+			if (skeleton.skin != null) SortPathSlot(skeleton, skeleton.skin, slotIndex, slotBone);
+			if (skeleton.data.defaultSkin != null && skeleton.data.defaultSkin != skeleton.skin)
+				SortPathSlot(skeleton, skeleton.data.defaultSkin, slotIndex, slotBone);
+			SortPath(skeleton, slot.pose.attachment, slotBone);
+			BonePose[] bones = this.bones.Items;
+			int boneCount = this.bones.Count;
+			for (int i = 0; i < boneCount; i++) {
+				Bone bone = bones[i].bone;
+				skeleton.SortBone(bone);
+				skeleton.Constrained(bone);
+			}
+			skeleton.updateCache.Add(this);
+			for (int i = 0; i < boneCount; i++)
+				skeleton.SortReset(bones[i].bone.children);
+			for (int i = 0; i < boneCount; i++)
+				bones[i].bone.sorted = true;
+		}
+
+		private void SortPathSlot (Skeleton skeleton, Skin skin, int slotIndex, Bone slotBone) {
+			foreach (Skin.SkinEntry entry in skin.Attachments)
+				if (entry.SlotIndex == slotIndex) SortPath(skeleton, entry.Attachment, slotBone);
+		}
+
+		private void SortPath (Skeleton skeleton, Attachment attachment, Bone slotBone) {
+			if (!(attachment is PathAttachment)) return;
+			int[] pathBones = ((PathAttachment)attachment).bones;
+			if (pathBones == null)
+				skeleton.SortBone(slotBone);
+			else {
+				Bone[] bones = skeleton.bones.Items;
+				for (int i = 0, n = pathBones.Length; i < n;) {
+					int nn = pathBones[i++];
+					nn += i;
+					while (i < nn)
+						skeleton.SortBone(bones[pathBones[i++]]);
+				}
+			}
+		}
+
+		override public bool IsSourceActive { get { return slot.bone.active; } }
+
+		/// <summary>The bones that will be modified by this path constraint.</summary>
+		public ExposedList<BonePose> Bones { get { return bones; } }
+		/// <summary>The slot whose path attachment will be used to constrained the bones.</summary>
+		public Slot Slot { get { return slot; } set { slot = value; } }
+	}
+}

Assets/Spine/Runtime/spine-csharp/PathConstraint.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 731d05fbc2874c74984813ce4c5bb8df
+timeCreated: 1467213650
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/PathConstraintData.cs

@@ -0,0 +1,68 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+	public class PathConstraintData : ConstraintData<PathConstraint, PathConstraintPose> {
+		internal ExposedList<BoneData> bones = new ExposedList<BoneData>();
+		internal SlotData slot;
+		internal PositionMode positionMode;
+		internal SpacingMode spacingMode;
+		internal RotateMode rotateMode;
+		internal float offsetRotation;
+
+		public PathConstraintData (string name)
+			: base(name, new PathConstraintPose()) {
+		}
+
+		override public IConstraint Create (Skeleton skeleton) {
+			return new PathConstraint(this, skeleton);
+		}
+
+		public ExposedList<BoneData> Bones { get { return bones; } }
+		public SlotData Slot { get { return slot; } set { slot = value; } }
+		public PositionMode PositionMode { get { return positionMode; } set { positionMode = value; } }
+		public SpacingMode SpacingMode { get { return spacingMode; } set { spacingMode = value; } }
+		public RotateMode RotateMode { get { return rotateMode; } set { rotateMode = value; } }
+		public float OffsetRotation { get { return offsetRotation; } set { offsetRotation = value; } }
+	}
+
+	public enum PositionMode {
+		Fixed, Percent
+	}
+
+	public enum SpacingMode {
+		Length, Fixed, Percent, Proportional
+	}
+
+	public enum RotateMode {
+		Tangent, Chain, ChainScale
+	}
+}

Assets/Spine/Runtime/spine-csharp/PathConstraintData.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 9d836858269be96428428fb6764dfc3a
+timeCreated: 1467213651
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/PathConstraintPose.cs

@@ -0,0 +1,59 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+
+	/// <summary>
+	/// Stores a pose for a path constraint.
+	/// </summary>
+	public class PathConstraintPose : IPose<PathConstraintPose> {
+		internal float position, spacing, mixRotate, mixX, mixY;
+
+		public void Set (PathConstraintPose pose) {
+			position = pose.position;
+			spacing = pose.spacing;
+			mixRotate = pose.mixRotate;
+			mixX = pose.mixX;
+			mixY = pose.mixY;
+		}
+
+		/// <summary>The position along the path.</summary>
+		public float Position { get { return position; } set { position = value; } }
+		/// <summary>The spacing between bones.</summary>
+		public float Spacing { get { return spacing; } set { spacing = value; } }
+		/// <summary>A percentage (0-1) that controls the mix between the constrained and unconstrained rotations.</summary>
+		public float MixRotate { get { return mixRotate; } set { mixRotate = value; } }
+		/// <summary>A percentage (0-1) that controls the mix between the constrained and unconstrained translation X.</summary>
+		public float MixX { get { return mixX; } set { mixX = value; } }
+		/// <summary>A percentage (0-1) that controls the mix between the constrained and unconstrained translation Y.</summary>
+		public float MixY { get { return mixY; } set { mixY = value; } }
+	}
+}

Assets/Spine/Runtime/spine-csharp/PathConstraintPose.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 40244ea3e8f247f4fac4363b219d8418

Assets/Spine/Runtime/spine-csharp/Physics.cs

@@ -0,0 +1,46 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+namespace Spine {
+
+	/// <summary>Determines how physics and other non-deterministic updates are applied.</summary>
+	public enum Physics {
+		/// <summary>Physics are not updated or applied.</summary>
+		None,
+
+		/// <summary>Physics are reset to the current pose.</summary>
+		Reset,
+
+		/// <summary>Physics are updated and the pose from physics is applied.</summary>
+		Update,
+
+		/// <summary>Physics are not updated but the pose from physics is applied.</summary>
+		Pose
+	}
+}

Assets/Spine/Runtime/spine-csharp/Physics.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 2dab58587078e30468faff31f1ad4fa9

Assets/Spine/Runtime/spine-csharp/PhysicsConstraint.cs

@@ -0,0 +1,302 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+
+	/// <summary>
+	/// Stores the current pose for a physics constraint. A physics constraint applies physics to bones.
+	/// <para>
+	/// See <a href="http://esotericsoftware.com/spine-physics-constraints">Physics constraints</a> in the Spine User Guide.</para>
+	/// </summary>
+	public class PhysicsConstraint : Constraint<PhysicsConstraint, PhysicsConstraintData, PhysicsConstraintPose> {
+		internal BonePose bone;
+
+		bool reset = true;
+		float ux, uy, cx, cy, tx, ty;
+		float xOffset, xLag, xVelocity;
+		float yOffset, yLag, yVelocity;
+		float rotateOffset, rotateLag, rotateVelocity;
+		float scaleOffset, scaleLag, scaleVelocity;
+
+		float remaining, lastTime;
+
+		public PhysicsConstraint (PhysicsConstraintData data, Skeleton skeleton)
+			: base(data, new PhysicsConstraintPose(), new PhysicsConstraintPose()) {
+			if (skeleton == null) throw new ArgumentNullException("skeleton", "skeleton cannot be null.");
+
+			bone = skeleton.bones.Items[data.bone.index].constrained;
+		}
+
+		override public IConstraint Copy (Skeleton skeleton) {
+			var copy = new PhysicsConstraint(data, skeleton);
+			copy.pose.Set(pose);
+			return copy;
+		}
+
+		public void Reset (Skeleton skeleton) {
+			remaining = 0;
+			lastTime = skeleton.time;
+			reset = true;
+			xOffset = 0;
+			xLag = 0;
+			xVelocity = 0;
+			yOffset = 0;
+			yLag = 0;
+			yVelocity = 0;
+			rotateOffset = 0;
+			rotateLag = 0;
+			rotateVelocity = 0;
+			scaleOffset = 0;
+			scaleLag = 0;
+			scaleVelocity = 0;
+		}
+
+		/// <summary>
+		/// Translates the physics constraint so next <see cref="Update(Skeleton, Physics)"/> forces are applied as if the bone moved an
+		/// additional amount in world space.
+		/// </summary>
+		public void Translate (float x, float y) {
+			ux -= x;
+			uy -= y;
+			cx -= x;
+			cy -= y;
+		}
+
+		/// <summary>
+		/// Rotates the physics constraint so next <see cref="Update(Skeleton, Physics)"/> forces are applied as if the bone rotated around
+		/// the specified point in world space.
+		/// </summary>
+		public void Rotate (float x, float y, float degrees) {
+			float r = degrees * MathUtils.DegRad, cos = (float)Math.Cos(r), sin = (float)Math.Sin(r);
+			float dx = cx - x, dy = cy - y;
+			Translate(dx * cos - dy * sin - dx, dx * sin + dy * cos - dy);
+		}
+
+		/// <summary>Applies the constraint to the constrained bones.</summary>
+		override public void Update (Skeleton skeleton, Physics physics) {
+			PhysicsConstraintPose p = applied;
+			float mix = p.mix;
+			if (mix == 0) return;
+
+			bool x = data.x > 0, y = data.y > 0, rotateOrShearX = data.rotate > 0 || data.shearX > 0, scaleX = data.scaleX > 0;
+			BonePose bone = this.bone;
+			float l = bone.bone.data.length, t = data.step, z = 0;
+
+			switch (physics) {
+			case Physics.None:
+				return;
+			case Physics.Reset:
+				Reset(skeleton);
+				goto case Physics.Update; // Fall through.
+			case Physics.Update:
+				float delta = Math.Max(skeleton.time - lastTime, 0), aa = remaining;
+				remaining += delta;
+				lastTime = skeleton.time;
+
+				float bx = bone.worldX, by = bone.worldY;
+				if (reset) {
+					reset = false;
+					ux = bx;
+					uy = by;
+				} else {
+					float a = remaining, i = p.inertia, f = skeleton.data.referenceScale, d = -1, m = 0, e = 0, qx = data.limit * delta,
+						qy = qx * Math.Abs(skeleton.ScaleY);
+					qx *= Math.Abs(skeleton.ScaleX);
+
+					if (x || y) {
+						if (x) {
+							float u = (ux - bx) * i;
+							xOffset += u > qx ? qx : u < -qx ? -qx : u;
+							ux = bx;
+						}
+						if (y) {
+							float u = (uy - by) * i;
+							yOffset += u > qy ? qy : u < -qy ? -qy : u;
+							uy = by;
+						}
+						if (a >= t) {
+							float xs = xOffset, ys = yOffset;
+							d = (float)Math.Pow(p.damping, 60 * t);
+							m = t * p.massInverse;
+							e = p.strength;
+							float w = f * p.wind, g = f * p.gravity;
+							float ax = (w * skeleton.windX + g * skeleton.gravityX) * skeleton.scaleX;
+							float ay = (w * skeleton.windY + g * skeleton.gravityY) * skeleton.ScaleY;
+							do {
+								if (x) {
+									xVelocity += (ax - xOffset * e) * m;
+									xOffset += xVelocity * t;
+									xVelocity *= d;
+								}
+								if (y) {
+									yVelocity -= (ay + yOffset * e) * m;
+									yOffset += yVelocity * t;
+									yVelocity *= d;
+								}
+								a -= t;
+							} while (a >= t);
+							xLag = xOffset - xs;
+							yLag = yOffset - ys;
+						}
+						z = Math.Max(0, 1 - a / t);
+						if (x) bone.worldX += (xOffset - xLag * z) * mix * data.x;
+						if (y) bone.worldY += (yOffset - yLag * z) * mix * data.y;
+					}
+					if (rotateOrShearX || scaleX) {
+						float ca = (float)Math.Atan2(bone.c, bone.a), c, s, mr = 0, dx = cx - bone.worldX, dy = cy - bone.worldY;
+						if (dx > qx)
+							dx = qx;
+						else if (dx < -qx)
+							dx = -qx;
+						if (dy > qy)
+							dy = qy;
+						else if (dy < -qy)
+							dy = -qy;
+						if (rotateOrShearX) {
+							mr = (data.rotate + data.shearX) * mix;
+							z = rotateLag * Math.Max(0, 1 - aa / t);
+							float r = (float)Math.Atan2(dy + ty, dx + tx) - ca - (rotateOffset - z) * mr;
+							rotateOffset += (r - (float)Math.Ceiling(r * MathUtils.InvPI2 - 0.5f) * MathUtils.PI2) * i;
+							r = (rotateOffset - z) * mr + ca;
+							c = (float)Math.Cos(r);
+							s = (float)Math.Sin(r);
+							if (scaleX) {
+								r = l * bone.WorldScaleX;
+								if (r > 0) scaleOffset += (dx * c + dy * s) * i / r;
+							}
+						} else {
+							c = (float)Math.Cos(ca);
+							s = (float)Math.Sin(ca);
+							float r = l * bone.WorldScaleX - scaleLag * Math.Max(0, 1 - aa / t);
+							if (r > 0) scaleOffset += (dx * c + dy * s) * i / r;
+						}
+						a = remaining;
+						if (a >= t) {
+							if (d == -1) {
+								d = (float)Math.Pow(p.damping, 60 * t);
+								m = t * p.massInverse;
+								e = p.strength;
+							}
+							float ax = p.wind * skeleton.windX + p.gravity * skeleton.gravityX;
+							float ay = p.wind * skeleton.windY + p.gravity * skeleton.gravityY;
+							float rs = rotateOffset, ss = scaleOffset, h = l / f;
+							if (Spine.Bone.yDown) ay = -ay;
+							while (true) {
+								a -= t;
+								if (scaleX) {
+									scaleVelocity += (ax * c - ay * s - scaleOffset * e) * m;
+									scaleOffset += scaleVelocity * t;
+									scaleVelocity *= d;
+								}
+								if (rotateOrShearX) {
+									rotateVelocity -= ((ax * s + ay * c) * h + rotateOffset * e) * m;
+									rotateOffset += rotateVelocity * t;
+									rotateVelocity *= d;
+									if (a < t) break;
+									float r = rotateOffset * mr + ca;
+									c = (float)Math.Cos(r);
+									s = (float)Math.Sin(r);
+								} else if (a < t) //
+									break;
+							}
+							rotateLag = rotateOffset - rs;
+							scaleLag = scaleOffset - ss;
+						}
+						z = Math.Max(0, 1 - a / t);
+					}
+					remaining = a;
+				}
+				cx = bone.worldX;
+				cy = bone.worldY;
+				break;
+			case Physics.Pose:
+				z = Math.Max(0, 1 - remaining / t);
+				if (x) bone.worldX += (xOffset - xLag * z) * mix * data.x;
+				if (y) bone.worldY += (yOffset - yLag * z) * mix * data.y;
+				break;
+			}
+
+			if (rotateOrShearX) {
+				float o = (rotateOffset - rotateLag * z) * mix, s, c, a;
+				if (data.shearX > 0) {
+					float r = 0;
+					if (data.rotate > 0) {
+						r = o * data.rotate;
+						s = (float)Math.Sin(r);
+						c = (float)Math.Cos(r);
+						a = bone.b;
+						bone.b = c * a - s * bone.d;
+						bone.d = s * a + c * bone.d;
+					}
+					r += o * data.shearX;
+					s = (float)Math.Sin(r);
+					c = (float)Math.Cos(r);
+					a = bone.a;
+					bone.a = c * a - s * bone.c;
+					bone.c = s * a + c * bone.c;
+				} else {
+					o *= data.rotate;
+					s = (float)Math.Sin(o);
+					c = (float)Math.Cos(o);
+					a = bone.a;
+					bone.a = c * a - s * bone.c;
+					bone.c = s * a + c * bone.c;
+					a = bone.b;
+					bone.b = c * a - s * bone.d;
+					bone.d = s * a + c * bone.d;
+				}
+			}
+			if (scaleX) {
+				float s = 1 + (scaleOffset - scaleLag * z) * mix * data.scaleX;
+				bone.a *= s;
+				bone.c *= s;
+			}
+			if (physics != Physics.Pose) {
+				tx = l * bone.a;
+				ty = l * bone.c;
+			}
+			bone.ModifyWorld(skeleton.update);
+		}
+
+		override public void Sort (Skeleton skeleton) {
+			Bone bone = this.bone.bone;
+			skeleton.SortBone(bone);
+			skeleton.updateCache.Add(this);
+			skeleton.SortReset(bone.children);
+			skeleton.Constrained(bone);
+		}
+
+		override public bool IsSourceActive { get { return bone.bone.active; } }
+
+		/// <summary>The bone constrained by this physics constraint.</summary>
+		public BonePose Bone { get { return bone; } set { bone = value; } }
+	}
+}

Assets/Spine/Runtime/spine-csharp/PhysicsConstraint.cs.meta

@@ -0,0 +1,11 @@
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+guid: e2816491d178b3b4986920107586ce55
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
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+  assetBundleName: 
+  assetBundleVariant: 

Assets/Spine/Runtime/spine-csharp/PhysicsConstraintData.cs

@@ -0,0 +1,67 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+namespace Spine {
+	/// <summary>
+	/// Stores the setup pose for a <see cref="PhysicsConstraint"/>.
+	/// <para>
+	/// See <a href="http://esotericsoftware.com/spine-physics-constraints">Physics constraints</a> in the Spine User Guide.</para>
+	/// </summary>
+	public class PhysicsConstraintData : ConstraintData<PhysicsConstraint, PhysicsConstraintPose> {
+		internal BoneData bone;
+		internal float x, y, rotate, scaleX, shearX, limit, step;
+		internal bool inertiaGlobal, strengthGlobal, dampingGlobal, massGlobal, windGlobal, gravityGlobal, mixGlobal;
+
+		public PhysicsConstraintData (string name)
+			: base(name, new PhysicsConstraintPose()) {
+		}
+
+		override public IConstraint Create (Skeleton skeleton) {
+			return new PhysicsConstraint(this, skeleton);
+		}
+
+		/// <summary>The bone constrained by this physics constraint.</summary>
+		public BoneData Bone { get { return bone; } }
+
+		public float Step { get { return step; } set { step = value; } }
+		public float X { get { return x; } set { x = value; } }
+		public float Y { get { return y; } set { y = value; } }
+		public float Rotate { get { return rotate; } set { rotate = value; } }
+		public float ScaleX { get { return scaleX; } set { scaleX = value; } }
+		public float ShearX { get { return shearX; } set { shearX = value; } }
+		public float Limit { get { return limit; } set { limit = value; } }
+		public bool InertiaGlobal { get { return inertiaGlobal; } set { inertiaGlobal = value; } }
+		public bool StrengthGlobal { get { return strengthGlobal; } set { strengthGlobal = value; } }
+		public bool DampingGlobal { get { return dampingGlobal; } set { dampingGlobal = value; } }
+		public bool MassGlobal { get { return massGlobal; } set { massGlobal = value; } }
+		public bool WindGlobal { get { return windGlobal; } set { windGlobal = value; } }
+		public bool GravityGlobal { get { return gravityGlobal; } set { gravityGlobal = value; } }
+		public bool MixGlobal { get { return mixGlobal; } set { mixGlobal = value; } }
+	}
+}

Assets/Spine/Runtime/spine-csharp/PhysicsConstraintData.cs.meta

@@ -0,0 +1,11 @@
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Assets/Spine/Runtime/spine-csharp/PhysicsConstraintPose.cs

@@ -0,0 +1,59 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+
+	/// <summary>
+	/// Stores a pose for a physics constraint.
+	/// </summary>
+	public class PhysicsConstraintPose : IPose<PhysicsConstraintPose> {
+		internal float inertia, strength, damping, massInverse, wind, gravity, mix;
+
+		public void Set (PhysicsConstraintPose pose) {
+			inertia = pose.inertia;
+			strength = pose.strength;
+			damping = pose.damping;
+			massInverse = pose.massInverse;
+			wind = pose.wind;
+			gravity = pose.gravity;
+			mix = pose.mix;
+		}
+
+		public float Inertia { get { return inertia; } set { inertia = value; } }
+		public float Strength { get { return strength; } set { strength = value; } }
+		public float Damping { get { return damping; } set { damping = value; } }
+		public float MassInverse { get { return massInverse; } set { massInverse = value; } }
+		public float Wind { get { return wind; } set { wind = value; } }
+		public float Gravity { get { return gravity; } set { gravity = value; } }
+		/// <summary>A percentage (0-1) that controls the mix between the constrained and unconstrained poses.</summary>
+		public float Mix { get { return mix; } set { mix = value; } }
+	}
+}

Assets/Spine/Runtime/spine-csharp/PhysicsConstraintPose.cs.meta

@@ -0,0 +1,2 @@
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+guid: 6974fd8e5e17807499e8fed214659cf9

Assets/Spine/Runtime/spine-csharp/Posed.cs

@@ -0,0 +1,97 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+	internal interface IPosedInternal {
+		// replaces "object.pose == object.applied" of reference implementation.
+		bool PoseEqualsApplied { get; }
+		// replaces "object.applied = object.pose" of reference implementation.
+		void UsePose ();
+		// replaces "object.applied = object.constrained" of reference implementation.
+		void UseConstrained ();
+		// replaces "object.applied.Set(object.pose)" of reference implementation.
+		void ResetConstrained ();
+	}
+
+	public interface IPosed {
+		void SetupPose ();
+	}
+
+	public class Posed<D, P, A> : IPosed, IPosedInternal
+		where D : PosedData<P>
+		where P : IPose<P>
+		where A : P {
+
+		internal readonly D data;
+		internal readonly A pose;
+		internal readonly A constrained;
+		internal A applied;
+
+		public Posed (D data, A pose, A constrained) {
+			if (data == null) throw new ArgumentNullException("data", "data cannot be null.");
+			this.data = data;
+			this.pose = pose;
+			this.constrained = constrained;
+			applied = pose;
+		}
+
+		public virtual void SetupPose () {
+			pose.Set(data.setup);
+		}
+
+		bool IPosedInternal.PoseEqualsApplied {
+			get { return (object)pose == (object)applied; }
+		}
+
+		void IPosedInternal.UsePose () {
+			applied = pose;
+		}
+
+		void IPosedInternal.UseConstrained () {
+			applied = constrained;
+		}
+
+		void IPosedInternal.ResetConstrained () {
+			applied.Set(pose);
+		}
+
+		/// <summary>The constraint's setup pose data.</summary>
+		public D Data { get { return data; } }
+
+		public P Pose { get { return pose; } }
+
+		public A AppliedPose { get { return applied; } }
+
+		override public string ToString () {
+			return data.name;
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/Posed.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 208c5c9065683a84e8166c4ce75c8951

Assets/Spine/Runtime/spine-csharp/PosedActive.cs

@@ -0,0 +1,58 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+	public interface IPosedActive {
+		bool Active { get; set; }
+	}
+
+	public class PosedActive<D, P, A> : Posed<D, P, A>, IPosedActive
+		where D : PosedData<P>
+		where P : IPose<P>
+		where A : P {
+
+		internal bool active;
+
+		public PosedActive (D data, A pose, A constrained)
+			: base(data, pose, constrained) {
+			SetupPose();
+		}
+
+		/// <summary>Returns false when this constraint won't be updated by
+		/// <see cref="Skeleton.UpdateWorldTransform(Physics)"/> because a skin is required and the
+		/// <see cref="Skeleton.Skin">active skin</see> does not contain this item.</summary>
+		/// <seealso cref="Skin.Bones"/>
+		/// <seealso cref="Skin.Constraints"/>
+		/// <seealso cref="PosedData.SkinRequired"/>
+		/// <seealso cref="Skeleton.UpdateCache()"/>
+		public bool Active { get { return active; } set { active = value; } }
+	}
+}

Assets/Spine/Runtime/spine-csharp/PosedActive.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: d3e0989017e310f44900496191b7d268

Assets/Spine/Runtime/spine-csharp/PosedData.cs

@@ -0,0 +1,74 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace Spine {
+	public interface IPosedData {
+		bool SkinRequired { get; }
+	}
+
+	/// <summary>
+	/// The base class for all constrained datas.
+	/// </summary>
+	public class PosedData<P> : IPosedData
+		where P : IPose<P> {
+
+		internal readonly string name;
+		internal readonly P setup;
+		internal bool skinRequired;
+
+		public PosedData (string name, P setup) {
+			if (name == null) throw new ArgumentNullException("name", "name cannot be null.");
+			this.name = name;
+			this.setup = setup;
+		}
+
+		///<summary>The constraint's name, which is unique across all constraints in the skeleton of the same type.</summary>
+		public string Name { get { return name; } }
+
+		public P GetSetupPose () {
+			return setup;
+		}
+
+		/// <summary>
+		/// When true, <see cref="Skeleton.UpdateWorldTransform(Physics)"/> only updates this constraint if the <see cref="Skeleton.Skin"/>
+		/// contains this constraint.
+		/// </summary>
+		/// <seealso cref="Skin.Constraints"/>
+		public bool SkinRequired {
+			get { return skinRequired; }
+			set { skinRequired = value; }
+		}
+
+		override public string ToString () {
+			return name;
+		}
+	}
+}

Assets/Spine/Runtime/spine-csharp/PosedData.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 984c45a4e280725489d63d5bf5cf526e

Assets/Spine/Runtime/spine-csharp/Skeleton.cs

@@ -0,0 +1,597 @@
+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#if UNITY_5_3_OR_NEWER
+#define IS_UNITY
+#endif
+
+using System;
+
+namespace Spine {
+#if IS_UNITY
+	using Color32F = UnityEngine.Color;
+#endif
+	public class Skeleton {
+		static private readonly int[] quadTriangles = { 0, 1, 2, 2, 3, 0 };
+		internal SkeletonData data;
+		internal ExposedList<Bone> bones;
+		internal ExposedList<Slot> slots;
+		internal ExposedList<Slot> drawOrder;
+		internal ExposedList<IConstraint> constraints;
+		internal ExposedList<PhysicsConstraint> physics;
+		internal ExposedList<object> updateCache = new ExposedList<object>();
+		internal ExposedList<IPosedInternal> resetCache = new ExposedList<IPosedInternal>(16);
+		internal Skin skin;
+		// Color is a struct, set to protected to prevent
+		// Color32F color = slot.color; color.a = 0.5;
+		// modifying just a copy of the struct instead of the original
+		// object as in reference implementation.
+		protected Color32F color;
+		internal float x, y, scaleX = 1, time, windX = 1, windY = 0, gravityX = 0, gravityY = 1;
+		/// <summary>Private to enforce usage of ScaleY getter taking Bone.yDown into account.</summary>
+		private float scaleY = 1;
+		internal int update;
+
+		public Skeleton (SkeletonData data) {
+			if (data == null) throw new ArgumentNullException("data", "data cannot be null.");
+			this.data = data;
+
+			bones = new ExposedList<Bone>(data.bones.Count);
+			Bone[] bonesItems = this.bones.Items;
+			foreach (BoneData boneData in data.bones) {
+				Bone bone;
+				if (boneData.parent == null) {
+					bone = new Bone(boneData, null);
+				} else {
+					Bone parent = bonesItems[boneData.parent.index];
+					bone = new Bone(boneData, parent);
+					parent.children.Add(bone);
+				}
+				this.bones.Add(bone);
+			}
+
+			slots = new ExposedList<Slot>(data.slots.Count);
+			drawOrder = new ExposedList<Slot>(data.slots.Count);
+			foreach (SlotData slotData in data.slots) {
+				Slot slot = new Slot(slotData, this);
+				slots.Add(slot);
+				drawOrder.Add(slot);
+			}
+
+			physics = new ExposedList<PhysicsConstraint>(8);
+			constraints = new ExposedList<IConstraint>(data.constraints.Count);
+			foreach (IConstraintData constraintData in data.constraints) {
+				IConstraint constraint = constraintData.Create(this);
+				PhysicsConstraint physicsConstraint = constraint as PhysicsConstraint;
+				if (physicsConstraint != null) physics.Add(physicsConstraint);
+				constraints.Add(constraint);
+			}
+			physics.TrimExcess();
+
+			color = new Color32F(1, 1, 1, 1);
+
+			UpdateCache();
+		}
+
+		/// <summary>Copy constructor.</summary>
+		public Skeleton (Skeleton skeleton) {
+			if (skeleton == null) throw new ArgumentNullException("skeleton", "skeleton cannot be null.");
+			data = skeleton.data;
+
+			bones = new ExposedList<Bone>(skeleton.bones.Count);
+			foreach (Bone bone in skeleton.bones) {
+				Bone newBone;
+				if (bone.parent == null)
+					newBone = new Bone(bone, null);
+				else {
+					Bone parent = bones.Items[bone.parent.data.index];
+					newBone = new Bone(bone, parent);
+					parent.children.Add(newBone);
+				}
+				bones.Add(newBone);
+			}
+
+			slots = new ExposedList<Slot>(skeleton.slots.Count);
+			Bone[] bonesItems = bones.Items;
+			foreach (Slot slot in skeleton.slots)
+				slots.Add(new Slot(slot, bonesItems[slot.bone.data.index], this));
+
+			drawOrder = new ExposedList<Slot>(slots.Count);
+			Slot[] slotsItems = slots.Items;
+			foreach (Slot slot in skeleton.drawOrder)
+				drawOrder.Add(slotsItems[slot.data.index]);
+
+			physics = new ExposedList<PhysicsConstraint>(skeleton.physics.Count);
+			constraints = new ExposedList<IConstraint>(skeleton.constraints.Count);
+			foreach (IConstraint other in skeleton.constraints) {
+				IConstraint constraint = other.Copy(this);
+				PhysicsConstraint physicsConstraint = constraint as PhysicsConstraint;
+				if (physicsConstraint != null) physics.Add(physicsConstraint);
+				constraints.Add(constraint);
+			}
+
+			skin = skeleton.skin;
+			color = skeleton.color;
+			x = skeleton.x;
+			y = skeleton.y;
+			scaleX = skeleton.scaleX;
+			scaleY = skeleton.scaleY;
+			time = skeleton.time;
+
+			UpdateCache();
+		}
+
+		/// <summary>Caches information about bones and constraints. Must be called if the <see cref="Skin"/> is modified or if bones, constraints, or
+		/// constraints, or weighted path attachments are added or removed.</summary>
+		public void UpdateCache () {
+			updateCache.Clear();
+			resetCache.Clear();
+
+			Slot[] slots = this.slots.Items;
+			for (int i = 0, n = this.slots.Count; i < n; i++) {
+				((IPosedInternal)slots[i]).UsePose();
+			}
+
+			int boneCount = this.bones.Count;
+			Bone[] bones = this.bones.Items;
+			for (int i = 0; i < boneCount; i++) {
+				Bone bone = bones[i];
+				bone.sorted = bone.data.skinRequired;
+				bone.active = !bone.sorted;
+				((IPosedInternal)bone).UsePose();
+			}
+			if (skin != null) {
+				BoneData[] skinBones = skin.bones.Items;
+				for (int i = 0, n = skin.bones.Count; i < n; i++) {
+					Bone bone = bones[skinBones[i].index];
+					do {
+						bone.sorted = false;
+						bone.active = true;
+						bone = bone.parent;
+					} while (bone != null);
+				}
+			}
+			IConstraint[] constraints = this.constraints.Items;
+
+			{ // scope added to prevent compile error of n already being declared in enclosing scope
+				int n = this.constraints.Count;
+				for (int i = 0; i < n; i++) {
+					((IPosedInternal)constraints[i]).UsePose();
+				}
+				for (int i = 0; i < n; i++) {
+					IConstraint constraint = constraints[i];
+					constraint.Active = constraint.IsSourceActive
+						&& (!constraint.IData.SkinRequired || (skin != null && skin.constraints.Contains(constraint.IData)));
+					if (constraint.Active) constraint.Sort(this);
+				}
+
+				for (int i = 0; i < boneCount; i++)
+					SortBone(bones[i]);
+
+				object[] updateCache = this.updateCache.Items;
+				n = this.updateCache.Count;
+				for (int i = 0; i < n; i++) {
+					Bone bone = updateCache[i] as Bone;
+					if (bone != null) updateCache[i] = bone.applied;
+				}
+			}
+		}
+
+		internal void Constrained (IPosedInternal obj) {
+			if (obj.PoseEqualsApplied) { // if (obj.pose == obj.applied) {
+				obj.UseConstrained();
+				resetCache.Add(obj);
+			}
+		}
+
+		internal void SortBone (Bone bone) {
+			if (bone.sorted || !bone.active) return;
+			Bone parent = bone.parent;
+			if (parent != null) SortBone(parent);
+			bone.sorted = true;
+			updateCache.Add(bone);
+		}
+
+		internal void SortReset (ExposedList<Bone> bones) {
+			Bone[] items = bones.Items;
+			for (int i = 0, n = bones.Count; i < n; i++) {
+				Bone bone = items[i];
+				if (bone.active) {
+					if (bone.sorted) SortReset(bone.children);
+					bone.sorted = false;
+				}
+			}
+		}
+
+		/// <summary>
+		/// Updates the world transform for each bone and applies all constraints.
+		/// <para>
+		/// See <a href="http://esotericsoftware.com/spine-runtime-skeletons#World-transforms">World transforms</a> in the Spine
+		/// Runtimes Guide.</para>
+		/// </summary>
+		public void UpdateWorldTransform (Physics physics) {
+			update++;
+
+			IPosedInternal[] resetCache = this.resetCache.Items;
+			for (int i = 0, n = this.resetCache.Count; i < n; i++) {
+				resetCache[i].ResetConstrained();
+			}
+
+			object[] updateCache = this.updateCache.Items;
+			for (int i = 0, n = this.updateCache.Count; i < n; i++)
+				((IUpdate)updateCache[i]).Update(this, physics);
+		}
+
+		/// <summary>Sets the bones, constraints, slots, and draw order to their setup pose values.</summary>
+		public void SetupPose () {
+			SetupPoseBones();
+			SetupPoseSlots();
+		}
+
+		/// <summary>Sets the bones and constraints to their setup pose values.</summary>
+		public void SetupPoseBones () {
+			Bone[] bones = this.bones.Items;
+			for (int i = 0, n = this.bones.Count; i < n; i++)
+				bones[i].SetupPose();
+
+			IConstraint[] constraints = this.constraints.Items;
+			for (int i = 0, n = this.constraints.Count; i < n; i++)
+				constraints[i].SetupPose();
+		}
+
+		/// <summary>Sets the slots and draw order to their setup pose values.</summary>
+		public void SetupPoseSlots () {
+			Slot[] slots = this.slots.Items;
+			int n = this.slots.Count;
+			Array.Copy(slots, 0, drawOrder.Items, 0, n);
+			for (int i = 0; i < n; i++)
+				slots[i].SetupPose();
+		}
+
+		/// <summary>The skeleton's setup pose data.</summary>
+		public SkeletonData Data { get { return data; } }
+		/// <summary>The skeleton's bones, sorted parent first. The root bone is always the first bone.</summary>
+		public ExposedList<Bone> Bones { get { return bones; } }
+		/// <summary>
+		/// The list of bones and constraints, sorted in the order they should be updated, as computed by <see cref="UpdateCache()"/>.
+		/// </summary>
+		public ExposedList<object> UpdateCacheList { get { return updateCache; } }
+		/// <summary>Returns the root bone, or null if the skeleton has no bones.</summary>
+		public Bone RootBone {
+			get { return bones.Count == 0 ? null : bones.Items[0]; }
+		}
+
+		/// <summary>Finds a bone by comparing each bone's name. It is more efficient to cache the results of this method than to call it
+		/// repeatedly.</summary>
+		/// <returns>May be null.</returns>
+		public Bone FindBone (string boneName) {
+			if (boneName == null) throw new ArgumentNullException("boneName", "boneName cannot be null.");
+			Bone[] bones = this.bones.Items;
+			for (int i = 0, n = this.bones.Count; i < n; i++) {
+				Bone bone = bones[i];
+				if (bone.data.name == boneName) return bone;
+			}
+			return null;
+		}
+
+		/// <summary>The skeleton's slots.</summary>
+		public ExposedList<Slot> Slots { get { return slots; } }
+
+		/// <summary>Finds a slot by comparing each slot's name. It is more efficient to cache the results of this method than to call it
+		/// repeatedly.</summary>
+		/// <returns>May be null.</returns>
+		public Slot FindSlot (string slotName) {
+			if (slotName == null) throw new ArgumentNullException("slotName", "slotName cannot be null.");
+			Slot[] slots = this.slots.Items;
+			for (int i = 0, n = this.slots.Count; i < n; i++) {
+				Slot slot = slots[i];
+				if (slot.data.name == slotName) return slot;
+			}
+			return null;
+		}
+
+		/// <summary>
+		/// The skeleton's slots in the order they should be drawn. The returned array may be modified to change the draw order.
+		/// </summary>
+		public ExposedList<Slot> DrawOrder {
+			get { return drawOrder; }
+			set {
+				if (value == null) throw new ArgumentNullException("drawOrder ", "drawOrder cannot be null.");
+				this.drawOrder = value;
+			}
+		}
+
+		/// <summary>The skeleton's current skin. May be null. See <see cref="SetSkin(Spine.Skin)"/></summary>
+		public Skin Skin {
+			/// <summary>The skeleton's current skin. May be null.</summary>
+			get { return skin; }
+			/// <summary>Sets a skin, <see cref="SetSkin(Skin)"/>.</summary>
+			set { SetSkin(value); }
+		}
+
+		/// <summary>Sets a skin by name (see <see cref="SetSkin(Spine.Skin)"/>).</summary>
+		public void SetSkin (string skinName) {
+			Skin foundSkin = data.FindSkin(skinName);
+			if (foundSkin == null) throw new ArgumentException("Skin not found: " + skinName, "skinName");
+			SetSkin(foundSkin);
+		}
+
+		/// <summary>
+		/// <para>Sets the skin used to look up attachments before looking in the <see cref="SkeletonData.DefaultSkin"/>. If the
+		/// skin is changed, <see cref="UpdateCache()"/> is called.
+		/// </para>
+		/// <para>Attachments from the new skin are attached if the corresponding attachment from the old skin was attached. If there was no
+		/// old skin, each slot's setup mode attachment is attached from the new skin.
+		/// </para>
+		/// <para>After changing the skin, the visible attachments can be reset to those attached in the setup pose by calling
+		/// <see cref="Skeleton.SetupPoseSlots()"/>. Also, often <see cref="AnimationState.Apply(Skeleton)"/> is called before the next time the skeleton is
+		/// rendered to allow any attachment keys in the current animation(s) to hide or show attachments from the new skin.</para>
+		/// </summary>
+		/// <param name="newSkin">May be null.</param>
+		public void SetSkin (Skin newSkin) {
+			if (newSkin == skin) return;
+			if (newSkin != null) {
+				if (skin != null)
+					newSkin.AttachAll(this, skin);
+				else {
+					Slot[] slots = this.slots.Items;
+					for (int i = 0, n = this.slots.Count; i < n; i++) {
+						Slot slot = slots[i];
+						string name = slot.data.attachmentName;
+						if (name != null) {
+							Attachment attachment = newSkin.GetAttachment(i, name);
+							if (attachment != null) slot.pose.Attachment = attachment;
+						}
+					}
+				}
+			}
+			skin = newSkin;
+			UpdateCache();
+		}
+
+		/// <summary>Finds an attachment by looking in the <see cref="Skeleton.Skin"/> and <see cref="SkeletonData.DefaultSkin"/> using the slot name and attachment
+		/// name.</summary>
+		/// <returns>May be null.</returns>
+		/// <seealso cref="GetAttachment(int, string)"/>
+		public Attachment GetAttachment (string slotName, string attachmentName) {
+			SlotData slot = data.FindSlot(slotName);
+			if (slot == null) throw new ArgumentException("Slot not found: " + slotName, "slotName");
+			return GetAttachment(slot.index, attachmentName);
+		}
+
+		/// <summary>Finds an attachment by looking in the skin and skeletonData.defaultSkin using the slot index and
+		/// attachment name. First the skin is checked and if the attachment was not found, the default skin is checked.</summary>
+		/// <para>
+		/// See <a href="http://esotericsoftware.com/spine-runtime-skins">Runtime skins</a> in the Spine Runtimes Guide.</para>
+		/// <returns>May be null.</returns>
+		public Attachment GetAttachment (int slotIndex, string attachmentName) {
+			if (attachmentName == null) throw new ArgumentNullException("attachmentName", "attachmentName cannot be null.");
+			if (skin != null) {
+				Attachment attachment = skin.GetAttachment(slotIndex, attachmentName);
+				if (attachment != null) return attachment;
+			}
+			if (data.defaultSkin != null) return data.defaultSkin.GetAttachment(slotIndex, attachmentName);
+			return null;
+		}
+
+		/// <summary>A convenience method to set an attachment by finding the slot with <see cref="FindSlot(string)"/>, finding the attachment with
+		/// <see cref="GetAttachment(int, string)"/>, then setting the slot's <see cref="SlotPose.Attachment"/>.</summary>
+		/// <param name="attachmentName">May be null to clear the slot's attachment.</param>
+		public void SetAttachment (string slotName, string attachmentName) {
+			if (slotName == null) throw new ArgumentNullException("slotName", "slotName cannot be null.");
+
+			Slot slot = FindSlot(slotName);
+			if (slot == null) throw new ArgumentException("Slot not found: " + slotName, "slotName");
+			Attachment attachment = null;
+			if (attachmentName != null) {
+				attachment = GetAttachment(slot.data.index, attachmentName);
+				if (attachment == null)
+					throw new ArgumentException("Attachment not found: " + attachmentName + ", for slot: " + slotName, "attachmentName");
+			}
+			slot.pose.Attachment = attachment;
+		}
+
+		/// <summary>The skeleton's constraints.</summary>
+		public ExposedList<IConstraint> Constraints { get { return constraints; } }
+		/// <summary>The skeleton's physics constraints.</summary>
+		public ExposedList<PhysicsConstraint> PhysicsConstraints { get { return physics; } }
+
+		/// <returns>May be null.</returns>
+		public T FindConstraint<T> (string constraintName) where T : class, IConstraint {
+			if (constraintName == null) throw new ArgumentNullException("constraintName", "constraintName cannot be null.");
+
+			IConstraint[] constraints = this.constraints.Items;
+			for (int i = 0, n = this.constraints.Count; i < n; i++) {
+				IConstraint constraint = constraints[i];
+				if (constraint is T && constraint.IData.Name == constraintName) return (T)constraint;
+			}
+			return null;
+		}
+
+		/// <summary>Returns the axis aligned bounding box (AABB) of the region and mesh attachments for the current pose.</summary>
+		/// <param name="x">The horizontal distance between the skeleton origin and the left side of the AABB.</param>
+		/// <param name="y">The vertical distance between the skeleton origin and the bottom side of the AABB.</param>
+		/// <param name="width">The width of the AABB</param>
+		/// <param name="height">The height of the AABB.</param>
+		/// <param name="vertexBuffer">Reference to hold a float[]. May be a null reference. This method will assign it a new float[] with the appropriate size as needed.</param>
+		public void GetBounds (out float x, out float y, out float width, out float height, ref float[] vertexBuffer,
+			SkeletonClipping clipper = null) {
+
+			float[] temp = vertexBuffer;
+			temp = temp ?? new float[8];
+			Slot[] drawOrder = this.drawOrder.Items;
+			float minX = int.MaxValue, minY = int.MaxValue, maxX = int.MinValue, maxY = int.MinValue;
+			for (int i = 0, n = this.drawOrder.Count; i < n; i++) {
+				Slot slot = drawOrder[i];
+				if (!slot.bone.active) continue;
+				int verticesLength = 0;
+				float[] vertices = null;
+				int[] triangles = null;
+				Attachment attachment = slot.pose.attachment;
+				RegionAttachment region = attachment as RegionAttachment;
+				if (region != null) {
+					verticesLength = 8;
+					vertices = temp;
+					if (vertices.Length < 8) vertices = temp = new float[8];
+					region.ComputeWorldVertices(slot, vertices, 0, 2);
+					triangles = quadTriangles;
+				} else {
+					MeshAttachment mesh = attachment as MeshAttachment;
+					if (mesh != null) {
+						verticesLength = mesh.WorldVerticesLength;
+						vertices = temp;
+						if (vertices.Length < verticesLength) vertices = temp = new float[verticesLength];
+						mesh.ComputeWorldVertices(this, slot, 0, verticesLength, temp, 0, 2);
+						triangles = mesh.Triangles;
+					} else if (clipper != null) {
+						ClippingAttachment clip = attachment as ClippingAttachment;
+						if (clip != null) {
+							clipper.ClipEnd(slot);
+							clipper.ClipStart(this, slot, clip);
+							continue;
+						}
+					}
+				}
+
+				if (vertices != null) {
+					if (clipper != null && clipper.IsClipping && clipper.ClipTriangles(vertices, triangles, triangles.Length)) {
+						vertices = clipper.ClippedVertices.Items;
+						verticesLength = clipper.ClippedVertices.Count;
+					}
+
+					for (int ii = 0; ii < verticesLength; ii += 2) {
+						float vx = vertices[ii], vy = vertices[ii + 1];
+						minX = Math.Min(minX, vx);
+						minY = Math.Min(minY, vy);
+						maxX = Math.Max(maxX, vx);
+						maxY = Math.Max(maxY, vy);
+					}
+				}
+				if (clipper != null) clipper.ClipEnd(slot);
+			}
+			if (clipper != null) clipper.ClipEnd();
+			x = minX;
+			y = minY;
+			width = maxX - minX;
+			height = maxY - minY;
+			vertexBuffer = temp;
+		}
+
+		/// <returns>A copy of the color to tint all the skeleton's attachments.</returns>
+		public Color32F GetColor () {
+			return color;
+		}
+
+		/// <summary>Sets the color to tint all the skeleton's attachments.</summary>
+		public void SetColor (Color32F color) {
+			this.color = color;
+		}
+
+		/// <summary>
+		/// A convenience method for setting the skeleton color. The color can also be set by
+		/// <see cref="SetColor(Color32F)"/>
+		/// </summary>
+		public void SetColor (float r, float g, float b, float a) {
+			color = new Color32F(r, g, b, a);
+		}
+
+		/// <summary><para> Scales the entire skeleton on the X axis.</para>
+		/// <para>
+		/// Bones that do not inherit scale are still affected by this property.</para></summary>
+		public float ScaleX { get { return scaleX; } set { scaleX = value; } }
+		/// <summary><para> Scales the entire skeleton on the Y axis.</para>
+		/// <para>
+		/// Bones that do not inherit scale are still affected by this property.</para></summary>
+		public float ScaleY { get { return scaleY * (Bone.yDown ? -1 : 1); } set { scaleY = value; } }
+
+		/// <summary>
+		/// Scales the entire skeleton on the X and Y axes.
+		/// <para>
+		/// Bones that do not inherit scale are still affected by this property.
+		/// </para></summary>
+		public void SetScale (float scaleX, float scaleY) {
+			this.scaleX = scaleX;
+			this.scaleY = scaleY;
+		}
+
+		/// <summary><para>The skeleton X position, which is added to the root bone worldX position.</para>
+		/// <para>
+		/// Bones that do not inherit translation are still affected by this property.</para></summary>
+		public float X { get { return x; } set { x = value; } }
+		/// <summary><para>The skeleton Y position, which is added to the root bone worldY position.</para>
+		/// <para>
+		/// Bones that do not inherit translation are still affected by this property.</para></summary>
+		public float Y { get { return y; } set { y = value; } }
+
+		/// <summary>
+		/// Sets the skeleton X and Y position, which is added to the root bone worldX and worldY position.
+		/// <para>
+		/// Bones that do not inherit translation are still affected by this property.</para></summary>
+		public void SetPosition (float x, float y) {
+			this.x = x;
+			this.y = y;
+		}
+
+		public float WindX { get { return windX; } set { windX = value; } }
+		public float WindY { get { return windY; } set { windY = value; } }
+		public float GravityX { get { return gravityX; } set { gravityX = value; } }
+		public float GravityY { get { return gravityY; } set { gravityY = value; } }
+
+		/// <summary>
+		/// Calls <see cref="PhysicsConstraint.Translate(float, float)"/> for each physics constraint.
+		/// </summary>
+		public void PhysicsTranslate (float x, float y) {
+			PhysicsConstraint[] physicsConstraints = this.physics.Items;
+			for (int i = 0, n = this.physics.Count; i < n; i++)
+				physicsConstraints[i].Translate(x, y);
+		}
+
+		/// <summary>
+		/// Calls <see cref="PhysicsConstraint.Rotate(float, float, float)"/> for each physics constraint.
+		/// </summary>
+		public void PhysicsRotate (float x, float y, float degrees) {
+			PhysicsConstraint[] physicsConstraints = this.physics.Items;
+			for (int i = 0, n = this.physics.Count; i < n; i++)
+				physicsConstraints[i].Rotate(x, y, degrees);
+		}
+
+		/// <summary>Returns the skeleton's time. This is used for time-based manipulations, such as <see cref="PhysicsConstraint"/>.</summary>
+		/// <seealso cref="Update(float)"/>
+		public float Time { get { return time; } set { time = value; } }
+
+		/// <summary>Increments the skeleton's <see cref="time"/>.</summary>
+		public void Update (float delta) {
+			time += delta;
+		}
+
+		override public string ToString () {
+			return data.name;
+		}
+	}
+}

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