2修

Assets/scripts/UI/SpriteNumberDisplay.cs

@@ -12,6 +12,23 @@ public class SpriteNumberDisplay : MonoBehaviour
     public Sprite plusSprite;
     public Sprite minusSprite;
 
+    [Header("string")]
+    public string en_combo = "COMBO";
+    [Tooltip("COMBO 标签字形高度(像素)。宽度按各字母 sprite 宽高比自动计算。")]
+    public int en_combo_fontSize = 20;
+    public Color en_combo_color = Color.white;
+    public float en_combo_yOffset= 0f;
+
+    [Header("COMBO letter sprites")]
+    [Tooltip("字母 C 的 sprite")]
+    public Sprite letterC_sprite;
+    [Tooltip("字母 O 的 sprite")]
+    public Sprite letterO_sprite;
+    [Tooltip("字母 M 的 sprite")]
+    public Sprite letterM_sprite;
+    [Tooltip("字母 B 的 sprite")]
+    public Sprite letterB_sprite;
+
     [Header("Layout")]
     public Vector2 digitSize = new Vector2(28f, 42f);
     public Vector2 decimalPointSize = new Vector2(12f, 42f);
@@ -19,6 +36,8 @@ public class SpriteNumberDisplay : MonoBehaviour
     public float spacing = 2f;
     public bool centerAlign = true;
     public bool preserveAspect = true;
+    [Tooltip("Keep all visible glyphs at the configured height. Width is recalculated from each sprite aspect ratio.")]
+    public bool forceUniformHeight = true;
     public Color color = Color.white;
     [Tooltip("Canvas sorting order used by generated character sprites.")]
     public int characterSortingOrder = 0;
@@ -26,6 +45,9 @@ public class SpriteNumberDisplay : MonoBehaviour
     private readonly List<Image> glyphImages = new List<Image>();
     private string currentText = string.Empty;
 
+    // 数字上方用 sprite 拼接的 "COMBO" 标签所用的 glyph 池。
+    private readonly List<Image> comboLabelImages = new List<Image>();
+
     private void OnEnable()
     {
         Refresh();
@@ -39,6 +61,12 @@ public class SpriteNumberDisplay : MonoBehaviour
         decimalPointSize.y = Mathf.Max(0f, decimalPointSize.y);
         percentSize.x = Mathf.Max(0f, percentSize.x);
         percentSize.y = Mathf.Max(0f, percentSize.y);
+
+        // 编辑器中改动 combo 标签相关字段时,已生成的字母 glyph 实时更新(不新建,避免编辑期实例化)。
+        if (comboLabelImages.Count > 0 && isActiveAndEnabled)
+        {
+            RefreshComboLabel();
+        }
     }
 
     public void SetNumber(int value)
@@ -83,7 +111,7 @@ public class SpriteNumberDisplay : MonoBehaviour
 
             char c = currentText[i];
             Sprite sprite = ResolveSprite(c);
-            Vector2 size = ResolveSize(c);
+            Vector2 size = ResolveSize(c, sprite);
 
             if (sprite == null)
             {
@@ -105,6 +133,94 @@ public class SpriteNumberDisplay : MonoBehaviour
 
             x += size.x + spacing;
         }
+
+        RefreshComboLabel();
+    }
+
+    // 用字母 sprite(C/O/M/B)在数字上方拼接 "COMBO" 标签。字形高度、颜色、Y 偏移由 Inspector 字段控制。
+    private void RefreshComboLabel()
+    {
+        string label = en_combo ?? string.Empty;
+
+        // 计算总宽度并按需扩容 glyph 池。
+        float height = Mathf.Max(1f, en_combo_fontSize);
+        float totalWidth = 0f;
+        int visibleCount = 0;
+        for (int i = 0; i < label.Length; i++)
+        {
+            Sprite s = ResolveComboLetterSprite(label[i]);
+            if (s == null) continue;
+            totalWidth += ComboLetterWidth(s, height);
+            visibleCount++;
+        }
+        if (visibleCount > 1) totalWidth += spacing * (visibleCount - 1);
+
+        EnsureComboImageCount(label.Length);
+
+        float x = centerAlign ? -totalWidth * 0.5f : 0f;
+        for (int i = 0; i < comboLabelImages.Count; i++)
+        {
+            Image image = comboLabelImages[i];
+            if (image == null) continue;
+
+            Sprite sprite = i < label.Length ? ResolveComboLetterSprite(label[i]) : null;
+            if (sprite == null)
+            {
+                image.gameObject.SetActive(false);
+                continue;
+            }
+
+            float w = ComboLetterWidth(sprite, height);
+            RectTransform rect = image.rectTransform;
+            image.gameObject.SetActive(true);
+            image.sprite = sprite;
+            image.color = en_combo_color;
+            image.preserveAspect = preserveAspect;
+            ApplyCharacterSortingOrder(image);
+            rect.sizeDelta = new Vector2(w, height);
+            rect.anchorMin = new Vector2(0.5f, 0.5f);
+            rect.anchorMax = new Vector2(0.5f, 0.5f);
+            rect.pivot = new Vector2(0.5f, 0.5f);
+
+            // 上方定位：数字 glyph 以 y=0 居中、高约 digitSize.y,标签放其上半高 + 半个字形高 + 偏移处。
+            float baseY = digitSize.y * 0.5f + height * 0.5f;
+            rect.anchoredPosition = new Vector2(x + w * 0.5f, baseY + en_combo_yOffset);
+
+            x += w + spacing;
+        }
+    }
+
+    private void EnsureComboImageCount(int count)
+    {
+        while (comboLabelImages.Count < count)
+        {
+            GameObject glyph = new GameObject("combo_letter_" + comboLabelImages.Count, typeof(RectTransform), typeof(Canvas), typeof(Image));
+            RectTransform rect = glyph.transform as RectTransform;
+            rect.SetParent(transform, false);
+
+            Image image = glyph.GetComponent<Image>();
+            image.raycastTarget = false;
+            comboLabelImages.Add(image);
+        }
+    }
+
+    private Sprite ResolveComboLetterSprite(char c)
+    {
+        switch (c)
+        {
+            case 'C': case 'c': return letterC_sprite;
+            case 'O': case 'o': return letterO_sprite;
+            case 'M': case 'm': return letterM_sprite;
+            case 'B': case 'b': return letterB_sprite;
+            default: return null;
+        }
+    }
+
+    private float ComboLetterWidth(Sprite sprite, float height)
+    {
+        if (sprite == null || sprite.rect.height <= 0f) return height;
+        float aspect = sprite.rect.width / sprite.rect.height;
+        return height * aspect;
     }
 
     private void ApplyCharacterSortingOrder(Image image)
@@ -154,7 +270,7 @@ public class SpriteNumberDisplay : MonoBehaviour
                 continue;
             }
 
-            total += ResolveSize(text[i]).x;
+            total += ResolveSize(text[i], ResolveSprite(text[i])).x;
             visibleCount++;
         }
 
@@ -181,10 +297,19 @@ public class SpriteNumberDisplay : MonoBehaviour
         return null;
     }
 
-    private Vector2 ResolveSize(char c)
+    private Vector2 ResolveSize(char c, Sprite sprite)
     {
-        if (c == '.') return decimalPointSize;
-        if (c == '%') return percentSize;
-        return digitSize;
+        Vector2 baseSize = digitSize;
+        if (c == '.') baseSize = decimalPointSize;
+        else if (c == '%') baseSize = percentSize;
+
+        if (!forceUniformHeight || sprite == null || sprite.rect.height <= 0f)
+        {
+            return baseSize;
+        }
+
+        float height = Mathf.Max(0f, baseSize.y);
+        float aspect = sprite.rect.width / sprite.rect.height;
+        return new Vector2(height * aspect, height);
     }
 }