首次提交

2026-07-13 18:14:23 +08:00
commit 20d09e4ebb
5293 changed files with 621708 additions and 0 deletions
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+using UnityEngine;
+using UnityEngine.UI;
+
+public class PanelImage : Image
+{
+    // 覆盖 Raycast 方法
+    public override bool IsRaycastLocationValid(Vector2 screenPoint, Camera eventCamera)
+    {
+        // 获取当前Image的RectTransform
+        RectTransform rectTransform = this.rectTransform;
+
+        // 将屏幕坐标转换为Image的局部坐标
+        Vector2 localPoint;
+        RectTransformUtility.ScreenPointToLocalPointInRectangle(rectTransform, screenPoint, eventCamera, out localPoint);
+
+        // 将局部坐标转换为贴图坐标
+        Vector2 normalizedPoint = new Vector2(
+            (localPoint.x - rectTransform.rect.x) / rectTransform.rect.width,
+            (localPoint.y - rectTransform.rect.y) / rectTransform.rect.height
+        );
+
+        // 确保坐标在0到1之间
+        if (normalizedPoint.x < 0 || normalizedPoint.x > 1 || normalizedPoint.y < 0 || normalizedPoint.y > 1)
+        {
+            return false;
+        }
+
+        // 获取当前图片的Sprite（确保图片是Sprite类型）
+        if (sprite == null || sprite.texture == null)
+        {
+            return true;
+        }
+
+        // 计算在纹理上的像素位置
+        int x = Mathf.FloorToInt(normalizedPoint.x * sprite.texture.width);
+        int y = Mathf.FloorToInt(normalizedPoint.y * sprite.texture.height);
+
+        // 检查该像素是否透明
+        Color pixelColor = sprite.texture.GetPixel(x, y);
+        return pixelColor.a > 0.1f;  // 如果透明度小于0.1，视为透明区域
+    }
+}