GameClock_ThreeOneFour_Impl1

GameClock_ThreeOneFour_Impl1.js

DeepElement.ThreeOneFour.Common.Clock = new Class({
    Implements: Events,
    running: false,
    interval: null,
    t0: +new Date(),
    rAFSupport: false,
    initialize: function() {
        self.requestAnimFrame = (function() {
            return self.requestAnimationFrame || self.webkitRequestAnimationFrame || self.mozRequestAnimationFrame || self.oRequestAnimationFrame || self.msRequestAnimationFrame;
        })();

        if (self.requestAnimFrame) {
            this.rAFSupport = true;
        }
	
        this.requestAnimationFrameHandler = this.requestAnimationFrameHandler.bind(this);

    },
    tick: function(t) {
        var t1 = t != null ? t : +new Date();
        var td = (t1 - this.t0) / 1000;
        this.ontick(td);
        this.t0 = t1;
    },
    requestAnimationFrameHandler: function(td) {
        if (this.running) {
            self.requestAnimFrame(this.requestAnimationFrameHandler);
            this.tick(td);
        }
    },
    start: function(element) {
        this.running = true;
        var selfFunc = this;
        if (this.rAFSupport) {
            self.requestAnimFrame(this.requestAnimationFrameHandler);
        } else {
            this.interval = self.setInterval(function() {
                selfFunc.tick();
            }, 1);
        }
        this.t0 = +new Date();
    },
    stop: function() {
        if (this.interval) {
            self.clearInterval(this.interval);
            this.interval = null;
        }
        this.running = false;
    },
    ontick: function(td) {
        this.fireEvent('tick', td);
    }
});​