WIP

Assets/Scripts/DoorController.cs

@@ -0,0 +1,15 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class DoorController : MonoBehaviour
+{
+    private void OnTriggerEnter2D(Collider2D collision)
+    {
+        if (collision.tag == "Player")
+        {
+           //if player have key, door will open
+           //else player can't pass
+        }
+    }
+}