*

Assets/Scripts/Door.cs

@@ -0,0 +1,87 @@
+using UnityEngine;
+using System.Collections;
+
+public enum DoorState{
+	Closed,
+	Closing,
+	Opened,
+	Opening
+}
+
+public delegate void DoorStateDelegate(Door sender, DoorState from, DoorState to);
+
+public class Door : MonoBehaviour {
+
+	private Animator anim;
+	private float state;
+	public float speed = 1.0f;
+	public float direction;
+	private DoorState doorState;
+	private SpriteRenderer _renderer;
+
+	public event DoorStateDelegate StateChanged;
+
+	protected virtual void OnStateChanged (DoorState from, DoorState to)
+	{
+		var handler = StateChanged;
+		if (handler != null)
+			handler (this, from, to);
+	}
+
+	public DoorState State{
+		get{return doorState;}
+	}
+
+	// Use this for initialization
+	void Start () {
+		anim = gameObject.GetComponent<Animator>();
+		_renderer = gameObject.GetComponent<SpriteRenderer>();
+		_renderer.enabled = false;
+		state = 0;
+	}
+
+	public void Open(){
+		if((doorState == DoorState.Opened) || (doorState == DoorState.Opening)){
+			return;
+		}
+		OnStateChanged(doorState, DoorState.Opening);
+		direction = 1.0f;
+		doorState = DoorState.Opening;
+	}
+
+	public void Close(){
+		if((doorState == DoorState.Closed) || (doorState == DoorState.Closing)){
+			return;
+		}
+		OnStateChanged(doorState, DoorState.Closing);
+		doorState = DoorState.Closing;
+		direction = -1.0f;
+
+	}
+	
+	// Update is called once per frame
+	void Update () {
+		if(direction == 0.0f){
+			return;
+		}
+
+
+		state = Mathf.Clamp01(state + direction * speed * Time.deltaTime);
+
+		_renderer.enabled = state != 0.0f;
+
+		if(direction < 0.0f && state == 0.0f){
+			direction = 0.0f;
+
+			OnStateChanged(doorState, DoorState.Closed);
+			doorState = DoorState.Closed;
+		}
+		if(direction > 0.0f && state == 1.0f){
+			direction = 0.0f;
+			OnStateChanged(doorState, DoorState.Opened);
+			doorState = DoorState.Opened;
+		}
+
+		anim.SetFloat("DoorState", state);
+	}
+}