private void OnTriggerEnter2D(Collider2D collision) { if (this.name.Contains("A")) { Debug.Log("Collided with Button A."); // 1 means Button A, 2 means Button B buttonController.AddEntity(1); } else if (this.name.Contains("B")) { Debug.Log("Collided with Button B."); // 1 means Button A, 2 means Button B buttonController.AddEntity(2); } }