dojo.provide("pocjs.gui.RubbleSprite");



dojo.declare("pocjs.gui.RubbleSprite", pocjs.gui.Sprite, {

    xa: null, ya: null, za: null,





    "-chains-": {constructor: "manual"},

    constructor: function() {

        this.inherited(arguments, [ Math.random() - 0.5,

                    Math.random() * 0.8,

                    Math.random() - 0.5,

                    2, 0x555555

        ]);

        this.xa = Math.random() - 0.5;

        this.ya = Math.random();

        this.za = Math.random() - 0.5;

    },



    tick: function() {

        this.x += this.xa * 0.03;

        this.y += this.ya * 0.03;

        this.z += this.za * 0.03;

        this.ya -= 0.1;

        if (this.y < 0) {

            this.y = 0;

            this.xa *= 0.8;

            this.za *= 0.8;

            if (Math.random() < 0.04)

                this.removed = true;

        }

    }

});