ES6 modules

src/Data/AutoMap.js

@@ -0,0 +1,71 @@
+/*
+* Copyright (c) 2017 Ahmed Kh. Zamil
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in all
+* copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*/
+
+/**
+ * Created by Ahmed Zamil on 05/09/2017.
+ */
+
+"use strict";  
+import IEventHandler from '../Engine/IEventHandler.js';
+import IDestructible from '../Engine/IDestructible.js';
+
+export default class AutoMap extends IEventHandler
+{
+    constructor()
+    {
+        super();
+        this.dic = {};
+    }
+
+    add(key, value)
+    {
+        if (value instanceof IDestructible)
+            value.on("destroy", this._item_destroyed);
+
+        this.dic[key] = value;
+
+        this._emit("add", key, value);
+    }
+
+    set(key, value)
+    {
+        if (this.dic[key] !== undefined)
+            this.remove(key);
+
+        this.add(key, value);
+    }
+
+    remove(key)
+    {
+        if (this.dic[key] !== undefined) {
+            if (this.dic[key] instanceof IDestructible)
+                this.dic[key].off("destroy", this._item_destroyed);
+
+            delete this.dic[key];
+        }
+    }
+
+    _item_destroyed(sender)
+    {
+        this.remove(sender);
+    }
+}