Can't extend classes

[slappy101]

I'm just starting with Panda.js and am having issues with extending the 'Sprite' and 'Graphics' classes when creating my own classes. I keep getting an error with the following code:

game.module(	'game.main').body(function() {	game.addAsset('characters/ball.png');	game.createClass('Ball', 'Sprite', {		init: function(x, y) {			this._super('characters/ball.png', x, y, {anchor: { x: 0.5, y: 0.5 }});			game.scene.addObject(this);			this.addTo(game.scene.stage);		},		update: function(){			this.position.x += 1;		}	});	game.createScene('Main', {		backgroundColor: 0xe1d4a7,		init: function() {			var ball = new game.Ball(100, 100);		}	});});

In Chrome the error is "Uncaught TypeError: undefined is not a function", and in Firefox I'm getting "TypeError: game[extend].extend is not a function". I'm using pandatool to create projects.

 

Thanks for any help

[enpu]

You cannot extend Pixi classes on current Panda version, but that will change on Panda 2.0

[slappy101]

Ah okay thank you. This is a somewhat unrelated question but it arose from me trying to extend the Sprite class, but how can I make custom classes react to events such as mousemove or mousedown? ie I have a class and I need something to happen everytime the mouse is moved anywhere on the screen. I've tried adding the mousemove event to the class but the event is never fired

[enpu]

You can do something like this:

game.createClass('MyClass', {    init: function() {        this.sprite = new game.Sprite('mysprite.png');        this.sprite.interactive = true;        this.sprite.mousedown = this.mousedown.bind(this);    },    mousedown: function() {            }});

[slappy101]

Thank you, that's exactly what I was looking for!