摄像机区域的架构改动

Assets/_Game/Scripts/Camera/RoomVisibleArea.cs

@@ -0,0 +1,30 @@
+using UnityEngine;
+
+namespace BaseGames.Camera
+{
+    /// <summary>
+    /// 标记房间的可见区域（多边形）。供 CinemachineConfiner2D 使用。
+    /// [ExecuteAlways] 确保编辑器中碰撞体立即更新。
+    /// </summary>
+    [ExecuteAlways]
+    [RequireComponent(typeof(PolygonCollider2D))]
+    public class RoomVisibleArea : MonoBehaviour
+    {
+        private PolygonCollider2D _collider;
+
+        private void Awake()
+        {
+            _collider = GetComponent<PolygonCollider2D>();
+            _collider.isTrigger = true;
+        }
+
+        public PolygonCollider2D Collider
+        {
+            get
+            {
+                if (_collider == null) _collider = GetComponent<PolygonCollider2D>();
+                return _collider;
+            }
+        }
+    }
+}