//BigLoop.as
class BigLoop {
	private var totalTimes:Number;
	private var frames:Number;
	private var timesPerFrame:Number;
	private var toDo:Function;
	private var callback:Function;
	private var count:Number = 0;
	private var mc:MovieClip;
	static var baseMC:MovieClip = _root.createEmptyMovieClip("BigLoopBaseMC", 200000);
	static var mcID:Number = 0;
	
	function BigLoop(totalTimes:Number, frames:Number, toDo:Function, callback:Function) {
		this.totalTimes = totalTimes;
		this.frames = frames;
		this.timesPerFrame = Math.floor(totalTimes/frames);
		
		this.toDo = toDo;
		this.callback = callback;
		
		this.mc = baseMC.createEmptyMovieClip("loopMC" + mcID, mcID);
	}
	function get Count() {
		return count;
	}
	function set ToDo(toDo:Function) {
		this.toDo = toDo;
	}
	function set Callback(callback:Function) {
		this.callback = callback;
	}
	
	function excute():Void {
		for (var j = 0; j < timesPerFrame; j++) {
			if (++count > totalTimes) {
				delete mc.onEnterFrame;
				callback();
				return;
			}
			toDo();
		}
		var obj = this;
		mc.onEnterFrame = function () {
			obj.excute();
		}
	}
}

//.fla
//トータル500回を10フレームかけて実行するloopオブジェクトの生成
var loop:BigLoop = new BigLoop(500, 10);
//500回実行する動作を指定
loop.ToDo = function () {
	trace(this.Count);
}
//コールバックの動作を指定
loop.Callback = function () {
	trace("done!");
}
//実行
loop.excute();