pyscript/examples/mario/js/prop.js

(function () {
    if (typeof Mario === "undefined") window.Mario = {};

    //props do even less than entities, so they don't need to inherit really
    var Prop = (Mario.Prop = function (pos, sprite) {
        this.pos = pos;
        this.sprite = sprite;
    });

    //but we will be using the same Render, more or less.
    Prop.prototype.render = function (ctx, vX, vY) {
        this.sprite.render(ctx, this.pos[0], this.pos[1], vX, vY);
    };
})();