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Assets/Scripts/Test/Light/New/ShadowUtils.cs

@@ -0,0 +1,42 @@
+using UnityEngine;
+using System.Collections.Generic;
+using System.Linq;
+
+public static class ShadowUtils
+{
+    public static Light FindMainLight()
+    {
+        Light[] lights = Object.FindObjectsOfType<Light>();
+        return lights.FirstOrDefault(l => l.type == LightType.Directional && l.enabled) ??
+               lights.FirstOrDefault(l => l.type == LightType.Spot && l.enabled);
+    }
+
+    public static Transform FindMainWall()
+    {
+        var walls = Object.FindObjectsOfType<Collider>()
+            .Where(c => c is BoxCollider)
+            .OrderByDescending(c =>
+            {
+                var box = c as BoxCollider;
+                var size = Vector3.Scale(box.size, c.transform.lossyScale);
+                return size.x * size.y;
+            });
+
+        return walls.FirstOrDefault()?.transform;
+    }
+
+    public static List<GameObject> FindObjectsInLayer(string layerName)
+    {
+        int layer = LayerMask.NameToLayer(layerName);
+        return Object.FindObjectsOfType<GameObject>()
+            .Where(obj => obj.activeInHierarchy && obj.layer == layer)
+            .ToList();
+    }
+
+    public static List<GameObject> FindObjectsInLayer(int layer)
+    {
+        return Object.FindObjectsOfType<GameObject>()
+            .Where(obj => obj.activeInHierarchy && obj.layer == layer)
+            .ToList();
+    }
+}