*

Assets/Scripts/LockSwitch.cs

@@ -0,0 +1,66 @@
+using UnityEngine;
+using System.Collections;
+
+public class LockSwitch : Predicate {
+	public string keyName = "";
+	public string keyClass = "Key";
+	public string unlockText = "unlock";
+	public PlayerSensor sensor;
+	public bool locked = true;
+	private GameAction _action;
+	private Notification _notify;
+
+	protected override bool CheckInternal ()
+	{
+		return !locked;
+	}
+	protected override bool CheckInternal (object param)
+	{
+		return Check ();
+	}
+
+
+	// Use this for initialization
+	void Start () {
+		sensor.PlayerEnter += HandlePlayerEnter;
+		sensor.PlayerExit += HandlePlayerExit;
+		_action = new GameAction(gameObject, "use " + keyName);
+		_notify = new Notification(){source = gameObject};
+
+		_notify.text = NotificationsController.AppendString(_notify.text, "Use ", NotificationElement.Text);
+		_notify.text = NotificationsController.AppendString(_notify.text, keyName, NotificationElement.Item);
+		_notify.text = NotificationsController.AppendString(_notify.text, " to ", NotificationElement.Text);
+		_notify.text = NotificationsController.AppendString(_notify.text, unlockText, NotificationElement.ImportantText);
+	}
+
+	void HandlePlayerEnter (PlayerSensor s, GameObject player)
+	{
+		if(locked){
+			var inventory = player.GetComponent<Inventory>();
+			if((inventory != null) && (inventory.QueryItem(keyName, keyClass, null) != null)){
+				ActionController.AddAction(_action);
+			}else{
+				NotificationsController.AddNotification(_notify);
+			}
+		}
+	}
+
+	void OnAction(ActionArgs a){
+		if(locked){
+			locked = false;
+			ActionController.RemoveAction(_action);
+			NotificationsController.RemoveNotification(_notify);
+		}
+	}
+
+	void HandlePlayerExit (PlayerSensor s, GameObject player)
+	{
+		ActionController.RemoveAction(_action);
+		NotificationsController.RemoveNotification(_notify);
+	}
+	
+	// Update is called once per frame
+	void Update () {
+	
+	}
+}