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Unity/Scripts/WorldChunk/WorldChunkManager.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using System.Linq;
+namespace BITKit.WorldChunk
+{
+    public class WorldChunkManager : MonoBehaviour
+    {
+        public Vector2Int playerSize;
+        Rect playerRect;
+        void FixedUpdate()
+        {
+            var cameraPos = Camera.main.transform.position;
+            Vector2 position = new()
+            {
+                x = cameraPos.x - playerSize.x / 2,
+                y = cameraPos.z - playerSize.y / 2,
+            };
+            playerRect = new(position, playerSize);
+            OnUpdate();
+            //ThreadHelper.Add(OnUpdate);
+        }
+        void OnUpdate()
+        {
+            WorldChunk.chunks.ForEach(x =>
+            {
+                var isOverlay = playerRect.Overlaps(x.GetRect());
+                x.SetActive(isOverlay);
+            });
+        }
+    }
+}