only respawn the enemy if it is off screen and the camera is not looking at its spawn point

scenes/enemies/Enemy.cs

@@ -6,14 +6,29 @@ public class Enemy : KinematicBody2D
     [Export]
     private Vector2 _startPosition;
     public Vector2 StartPosition { get { return _startPosition; } }
+    private Event _event;
 
     public override void _Ready()
     {
+        _event = GetNode<Event>("/root/Event");
         _startPosition = Position;
     }
 
     public virtual void Reset()
     {
-        Position = _startPosition;
+        // Shove him off screen somewhere until we can respawn him
+        Position = new Vector2(-100, - 100);
+        _event.Connect("CameraView", this, "OnCameraView");
+    }
+
+    public void OnCameraView(Rect2 rect)
+    {
+        rect.Size += new Vector2(32, 32);
+        if (!rect.HasPoint(StartPosition))
+        {
+            // We can respawn him because the player is not in the spawn point
+            _event.Disconnect("CameraView", this, "OnCameraView");
+            Position = StartPosition;
+        }
     }
 }