Add: keyboard_shortcut to menu_typing_practice

src/game/lib/keyboard_shortcut.js

@@ -0,0 +1,58 @@
+function KeyboardShortcut() {
+	console.log("KeyboardShortcut");
+
+	this.keyHandlerMapper = {};
+	console.log(this.keyHandlerMapper[Phaser.KeyCode.ESC]);
+
+	game.input.keyboard.addCallbacks(this, this.keyDown, this.keyUp, null);
+};
+
+KeyboardShortcut.prototype.addCallback = function(keyCode, keyDownHandler, keyUpHandler, callerClassName) {
+	if(this.keyHandlerMapper[keyCode] != undefined) {
+		this.keyHandlerMapper[keyCode] = null;
+	}
+
+	this.keyHandlerMapper[keyCode] = {
+		"keyDownHandler": keyDownHandler,
+		"keyUpHandler": keyUpHandler,
+		"callerClassName": callerClassName
+	}
+
+	// console.log(this.keyHandlerMapper);
+}
+
+KeyboardShortcut.prototype.keyDown = function(char) {
+	// var keyCode = char.code;
+	var keyCode = char.keyCode;
+	// console.log(keyCode + " is pressed");
+
+	if(this.keyHandlerMapper[keyCode] == undefined)
+		return;
+
+	var keyMapper = this.keyHandlerMapper[keyCode];
+	var keyDownHandler = keyMapper["keyDownHandler"];
+	if(keyDownHandler == undefined)
+		return;
+
+	if(isDebugMode())
+		console.log(keyCode + " key is down (" + keyMapper["callerClassName"] + ")");
+	keyDownHandler();
+}
+
+KeyboardShortcut.prototype.keyUp = function(char) {
+	// var keyCode = char.code;
+	var keyCode = char.keyCode;
+	// console.log(keyCode + " is up");
+
+	if(this.keyHandlerMapper[keyCode] == undefined)
+		return;
+
+	var keyMapper = this.keyHandlerMapper[keyCode];
+	var keyUpHandler = keyMapper["keyUpHandler"];
+	if(keyUpHandler == undefined)
+		return;
+
+	if(isDebugMode())
+		console.log(keyCode + " key is up (" + keyMapper["callerClassName"] + ")");
+	keyUpHandler();
+}