PIXI.MovieClip.prototype.setTickFrame / PIXI.MovieClip.prototype.removeTickFrame

PIXI.MovieClip.prototype.setTickFrame

PIXI.MovieClip = function(a) {
    PIXI.Sprite.call(this, a[0]);
    this.textures = a;
    this.currentFrame = 0;
    this.animationSpeed = 1;
    //added:start--------------------
    this._now = null;
    this._interval = 0;
    this._lastTime = 0;
    this._tick = null;
    //added:end--------------------
};
//* noneChanged
PIXI.MovieClip.constructor = PIXI.MovieClip;
PIXI.MovieClip.prototype = Object.create(PIXI.Sprite.prototype);
PIXI.MovieClip.prototype.stop = function() {
    this.playing = !1
};
PIXI.MovieClip.prototype.play = function() {
    this.playing = !0
};
PIXI.MovieClip.prototype.gotoAndStop = function(a) {
    this.playing = !1;
    this.currentFrame = a;
    this.setTexture(this.textures[(this.currentFrame + 0.5 | 0) % this.textures.length])
};
PIXI.MovieClip.prototype.gotoAndPlay = function(a) {
    this.currentFrame = a;
    this.playing = !0
};
// noneChanged */
//added:start--------------------
PIXI.MovieClip.prototype.setTickFrame = function(func, itv){
	this._now = window.performance && (performance.now || performance.mozNow || performance.msNow || performance.oNow || performance.webkitNow) || null;
    this._interval = itv;
    this._tick = func;
};
PIXI.MovieClip.prototype.removeTickFrame = function(){
    this._interval = 0;
    this._tick = null;
};
PIXI.MovieClip.prototype._getTime = function() {
	return (this._now&&this._now.call(performance))||(new Date().getTime());
}
//added:end--------------------
PIXI.MovieClip.prototype.updateTransform = function() {
    PIXI.Sprite.prototype.updateTransform.call(this);
    if(!this.playing)return;
    this.currentFrame += this.animationSpeed;
    var round = (this.currentFrame + 0.5) | 0;
    this.setTexture(this.textures[round % this.textures.length]);
    //added:start--------------------
    if(this._tick){
        var time = this._getTime();
        if (this._getTime() - this._lastTime >= (this._interval-1)*0.97) {
            this._tick();
            this._lastTime = time;
        }
    }
    //added:end--------------------
};

//sample:
//MC.setTickFrame(function, interval)

var count = 0;
MC.setTickFrame(function(){
console.log("tick! -> " + count);
if(count > 2){
console.log("tick -> removed")
this.removeTickFrame();
}
count++;
}, 500);

//log was
//tick! -> 0
//tick! -> 1
//tick! -> 2
//tick! -> 3
//tick -> removed