92 lines
2.9 KiB
C#
92 lines
2.9 KiB
C#
using UnityEngine;
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/// <summary>
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/// 挂在被 GfxController 池化的特效实例上，记录它来自哪个 prefab，
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/// 并在复用前把会被逐次修改的可视状态（粒子起始色/循环、拖尾渐变、材质属性块）
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/// 还原到首次实例化时的原始值，保证复用后的视觉与 Instantiate 全新实例完全等价。
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/// </summary>
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public class GfxPooledItem : MonoBehaviour
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{
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public GameObject prefabKey;
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public GfxController owner;
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// 防止同一实例被重复回收（粒子回调 + 计时回收等路径）。
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[System.NonSerialized] public bool released;
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private ParticleSystem[] _particles;
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private ParticleSystem.MinMaxGradient[] _origStartColors;
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private bool[] _origLoops;
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private TrailRenderer[] _trails;
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private Gradient[] _origTrailGradients;
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private Renderer[] _renderers;
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private bool _captured;
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/// <summary>首次实例化后调用一次，快照原始可视状态。</summary>
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public void CaptureOriginals()
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{
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_particles = GetComponentsInChildren<ParticleSystem>(true);
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_origStartColors = new ParticleSystem.MinMaxGradient[_particles.Length];
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_origLoops = new bool[_particles.Length];
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for (int i = 0; i < _particles.Length; i++)
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{
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var main = _particles[i].main;
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_origStartColors[i] = main.startColor;
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_origLoops[i] = main.loop;
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}
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_trails = GetComponentsInChildren<TrailRenderer>(true);
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_origTrailGradients = new Gradient[_trails.Length];
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for (int i = 0; i < _trails.Length; i++)
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{
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_origTrailGradients[i] = CloneGradient(_trails[i].colorGradient);
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}
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_renderers = GetComponentsInChildren<Renderer>(true);
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_captured = true;
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}
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/// <summary>复用前还原到原始状态。</summary>
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public void ResetToOriginal()
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{
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if (!_captured) return;
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for (int i = 0; i < _particles.Length; i++)
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{
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if (_particles[i] == null) continue;
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var main = _particles[i].main;
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main.startColor = _origStartColors[i];
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main.loop = _origLoops[i];
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}
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for (int i = 0; i < _trails.Length; i++)
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{
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if (_trails[i] == null) continue;
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_trails[i].Clear();
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_trails[i].colorGradient = CloneGradient(_origTrailGradients[i]);
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}
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for (int i = 0; i < _renderers.Length; i++)
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{
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if (_renderers[i] != null) _renderers[i].SetPropertyBlock(null);
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}
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}
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// 粒子播放完毕（root 的 stopAction 设为 Callback）时回收整个特效。
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private void OnParticleSystemStopped()
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{
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if (owner != null) owner.ReleaseFx(gameObject);
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}
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private static Gradient CloneGradient(Gradient src)
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{
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if (src == null) return null;
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var g = new Gradient();
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g.SetKeys(src.colorKeys, src.alphaKeys);
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g.mode = src.mode;
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return g;
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}
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}
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