Extending Sprite

[tadast]

Hi,
I am playing with sprite.js and I would like to extend sprite objects to include some methods, say jump(), reset() etc.. I know similar methods already exist in sprite, however, I would like to customize and encapsulate them and make my game more object oriented. I tried to go with prototypal inheritance approach, however sprite prototype is not reachable in the global scope and constructor takes several parameters, therefore I can not do something like

    var Tank = function(){ };

    Tank.prototype = new Sprite;
    Tank.prototype.constructor = Tank;

My javascript skills are quite poor, so maybe I am missing something. How would you suggest I extend Sprite?
I believe making Sprite extendible in some way would add more value to sprite.js, because it would be applicable to frameworks more.
Thanks for your help and for awesome library.

Tadas

[batiste]

Hi,

It's indeed an error to not give the Sprite prototype available externaly. I have to digg in the code to see how that could be done.

[batiste]

There you can use sjs.Sprite:

e103692

function _Sprite(scene, src, layer)

The only parameter that is really needed is the scene... But I could imagine removing this constraint.