修复分屏小问题

ActionTowerDefense/Assets/Scripts/CameraController.cs

@@ -274,6 +274,7 @@ public class CameraController : MonoBehaviour
     {
         if (flag)
         {
+            
             mainCamera.enabled = true;
             player0Camera.enabled = false;
             player1Camera.enabled = false;
@@ -286,6 +287,7 @@ public class CameraController : MonoBehaviour
             {
                 return;
             }
+            offsetYDown = 0;
             mainCamera.enabled = false;
             player0Camera.enabled = true;
             player1Camera.enabled = true;