/*----------------------------------------------------------------------
*	(c) 2001, ATOMGAS Luzifer Altenberg
*	http://atomgas.de	luzifer@atomgas.de
*	Use this code royalty-free as long as you keep this comments there
*
*	LinearTween Class
*	to create timebased linear tweens 
*	can tween all _properties and variables
*
*	version 1.0 (8.12.2001)
*
*	do not remove this part!
/----------------------------------------------------------------------------------------*/
/*	needs the ACK.eventEngine to work
*	http://chattyfig.figleaf.com/ack/
*
*	test for ACK!
*/
if(typeof(Object.ACK.eventEngine) != "function"){
	trace("------------------------------------------------");
	trace("ERROR: ACK.eventEngine is missing!");
	trace("download ACK.eventEngine from: http://chattyfig.figleaf.com/ack/");
	trace("------------------------------------------------");
}
/*----------------------------------------------------------------------------------------*/
//LinearTween Class
function LinearTween(){
	if(typeof (Object.ee) != "object") Object.ee = new Object.ACK.eventEngine();
}
LinearTween.prototype.toString = function(){
	return "[LinearTween object]";
};
LinearTween.prototype.isTweening = function(){
	return this.$tweenData != undefined ? 1 : 0;
};
LinearTween.prototype.tweenTo = function(targetObj,time,callback,callbackArgs){
	if(this.isTweening()) Object.ee.removeEventlistener(this.$tweenData.listenerID);
	this.$tweenData = {};
	this.$tweenData.targetObj = targetObj;
	this.$tweenData.deltaTime= time;
	//callback function (is called at endLinearTween)
	this.$tweenData.callback = callback;
	this.$tweenData.callbackArgs = callbackArgs;
	
	this.$tweenData.startTime = getTimer();
	this.$tweenData.startObj = {};
	
	for(var i in targetObj){
		this.$tweenData.startObj[i] = this[i];
	}
	this.$tweenData.listenerID = Object.ee.addEventlistener("enterFrame",this,"runLinearTween");
};

LinearTween.prototype.runLinearTween = function(){
	var runTime = getTimer()-this.$tweenData.startTime;
	if(runTime < this.$tweenData.deltaTime){
		for(var i in this.$tweenData.targetObj){
			this[i] = this.$tweenData.startObj[i]+((this.$tweenData.targetObj[i]-this.$tweenData.startObj[i])/this.$tweenData.deltaTime)*runTime;
		}
	}else{
		this.endLinearTween();
	}
};
LinearTween.prototype.endLinearTween = function(){
	Object.ee.removeEventlistener(this.$tweenData.listenerID);
	for(var i in this.$tweenData.targetObj){
		this[i] = this.$tweenData.targetObj[i];
	}
	//callback
	if(typeof(this.$tweenData.callback) == "string"){
		eval(this.$tweenData.callback)(this,this.$tweenData.callbackArgs);
	}else{
		this.$tweenData.callback(this,this.$tweenData.callbackArgs);
	}
	delete this.$tweenData;
};
//end LinearTween Class
/*-------------------------------------------------------------------------*/
/*
*   taken from www.quantumwave.com
*
*   MovieClip inheritance of custom classes
*   
*   top-level superclass must link back to MovieClip.prototype
*/
LinearTween.prototype.__proto__ = MovieClip.prototype;

/*-------------------------------------------------------------------------*/
/*
*   movieclip.setClass(c)
*      Method to set the movie clip to class c
*/
MovieClip.prototype.setClass = function(c, args) {
   this.super = c;
   this.super(args);
   delete this.super;

   this.__proto__ = c.prototype;
};

/*-------------------------------------------------------------------------*/
trace(">>>tween.as");