using UnityEngine;
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using UnityEngine.UI;
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/// <summary>
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/// 特效穿透阻挡器
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/// 将此脚本挂在特效游戏对象上，可以防止特效穿透UI界面
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/// </summary>
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public class EffectPenetrationBlocker : MonoBehaviour
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{
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[Tooltip("是否在UI层级下自动调整排序顺序")]
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public bool autoAdjustSorting = true;
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[Tooltip("特效渲染器，如果为空则自动获取")]
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public Renderer[] effectRenderers;
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[Tooltip("特效粒子系统，如果为空则自动获取")]
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public ParticleSystem[] particleSystems;
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[Tooltip("自定义排序顺序，仅在不自动调整时有效")]
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public int customSortingOrder = 0;
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[Tooltip("自定义排序层，为空则使用默认UI层")]
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public string customSortingLayer = "UI";
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[Tooltip("特效所属的Canvas，如果为空则查找父级Canvas")]
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public Canvas parentCanvas;
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[Tooltip("特效在Canvas中的排序偏移量")]
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public int sortingOrderOffset = 1;
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private int canvasSortingOrder = 0;
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private void Awake()
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{
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// 如果没有指定渲染器，则自动获取
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if (effectRenderers == null || effectRenderers.Length == 0)
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{
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effectRenderers = GetComponentsInChildren<Renderer>(true);
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}
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// 如果没有指定粒子系统，则自动获取
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if (particleSystems == null || particleSystems.Length == 0)
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{
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particleSystems = GetComponentsInChildren<ParticleSystem>(true);
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}
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// 查找父级Canvas
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if (parentCanvas == null)
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{
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parentCanvas = GetComponentInParent<Canvas>();
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}
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if (autoAdjustSorting)
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{
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UpdateSortingOrder();
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}
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else
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{
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// 使用自定义排序
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ApplySortingSettings(customSortingOrder, customSortingLayer);
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}
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}
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private void OnEnable()
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{
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if (autoAdjustSorting)
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{
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UpdateSortingOrder();
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}
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}
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/// <summary>
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/// 更新排序顺序，确保特效显示在当前UI界面上方
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/// </summary>
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public void UpdateSortingOrder()
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{
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if (!autoAdjustSorting) return;
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// 获取父级Canvas的排序顺序
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if (parentCanvas != null)
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{
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canvasSortingOrder = parentCanvas.sortingOrder;
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}
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else
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{
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// 如果没有找到父级Canvas，则使用默认值
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canvasSortingOrder = 0;
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}
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// 将特效的排序顺序设置为Canvas排序顺序加上偏移量
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ApplySortingSettings(canvasSortingOrder + sortingOrderOffset, customSortingLayer);
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}
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/// <summary>
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/// 应用排序设置到所有渲染器和粒子系统
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/// </summary>
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private void ApplySortingSettings(int sortingOrder, string sortingLayer)
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{
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// 应用到渲染器
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foreach (Renderer renderer in effectRenderers)
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{
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if (renderer != null)
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{
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renderer.sortingOrder = sortingOrder;
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if (!string.IsNullOrEmpty(sortingLayer))
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{
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renderer.sortingLayerName = sortingLayer;
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}
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}
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}
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// 应用到粒子系统
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foreach (ParticleSystem ps in particleSystems)
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{
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if (ps != null)
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{
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ParticleSystemRenderer psRenderer = ps.GetComponent<ParticleSystemRenderer>();
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if (psRenderer != null)
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{
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psRenderer.sortingOrder = sortingOrder;
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if (!string.IsNullOrEmpty(sortingLayer))
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{
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psRenderer.sortingLayerName = sortingLayer;
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}
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}
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}
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}
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}
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/// <summary>
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/// 手动设置排序顺序
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/// </summary>
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public void SetSortingOrder(int sortingOrder, string sortingLayer = null)
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{
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customSortingOrder = sortingOrder;
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if (!string.IsNullOrEmpty(sortingLayer))
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{
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customSortingLayer = sortingLayer;
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}
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autoAdjustSorting = false;
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ApplySortingSettings(customSortingOrder, customSortingLayer);
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}
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/// <summary>
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/// 设置父级Canvas
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/// </summary>
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public void SetParentCanvas(Canvas canvas)
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{
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parentCanvas = canvas;
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if (autoAdjustSorting)
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{
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UpdateSortingOrder();
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}
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}
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}
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