Quick fix for scope

gistfile1.txt

// Try setting var self = this in the init and using self.mouseX/self.mouseY in onMouseMove 

GAME.Input = function ( parent ) {

	this.game = parent;

	this.oldMouseX = 0;
	this.oldMouseY = 0;
	this.mouseX = 0;
	this.mouseY = 0;

};

GAME.Input.prototype = {

	init: function ( useMouse, useKeyboard ) {

                var self = this;
		if ( useMouse == true) {

			document.addEventListener( 'mousemove', this.onMouseMove, false );

			this.write("Mouse move listener started");

		}

	},

	update: function () {

		if (this.mouseX != this.oldMouseX || this.mouseY != this.oldMouseY) {

			this.oldMouseX = this.mouseX;
			this.oldMouseY = this.mouseY;

			this.write(this.mouseX + " x " + this.mouseY);

		}

	},

	onMouseMove: function ( event ) {

		self.mouseX = event.clientX;
		self.mouseY = event.clientY;

	},

	write: function  ( info, color ) {

		this.game.config.write( 'Input > ' + info, color );

	},


};