var oBitmapData:BitmapData=new BitmapData(this.stage.stageWidth,this.stage.stageHeight);
var oBitmapData2:BitmapData=new BitmapData(this.stage.stageWidth,this.stage.stageHeight);
var oMeinBild:meinBild=new meinBild(0,0);
var oDisplayBitmapData:BitmapData=new BitmapData(this.stage.stageWidth,this.stage.stageHeight);
var ccount:int=Math.random()*150+5;;
var ampl:int=Math.round(Math.random()*((ccount-5)/3)+5);;
var colorArray:Array=new Array(ccount);
var speed:int=1;

//initialisiere Palette
function initColors(){
	var i:int=0;
	//sinusförmig
	for(i=0;i<ccount;i++){
		colorArray[i]=Math.round((ampl)*Math.sin(i/ccount*2*Math.PI)+128);
	}
}
//wird von Javascript aufgerufen
function updateWaves(newCount:int,newAmpl:int){
	speed=1;
	ampl=newAmpl;
	ccount=newCount;
	calculateWaves();
}

//wird von Javascript aufgerufen
function setSpeed(newSpeed:int){
	speed=newSpeed;
}

//rotiert die Palette
function rotatePalette(Direction:Boolean,cMax:int){
	var buf:Number=0;
	var i:int=0;
	if(Direction){
		buf=colorArray[cMax];
		for(i=cMax;i>0;i--){
			colorArray[i]=colorArray[i-1];
		}
		colorArray[0]=buf;
	}else{
		buf=colorArray[0];
		for(i=0;i<cMax;i++){
			colorArray[i]=colorArray[i+1];
		}
		colorArray[cMax]=buf;
	}
}
//rotier die Palette und trage Änderungen in die Displacement map ein
function doEvent(event:Event){
		for(var i:int=1;i<=speed;i++){
				rotatePalette(true,ccount-1);
			}
			
		oBitmapData.paletteMap(oBitmapData2,oBitmapData2.rect,new Point(0,0),null,null,colorArray,null);
		var oDisplacementMapFilter:DisplacementMapFilter=new DisplacementMapFilter(oBitmapData,new Point(),BitmapDataChannel.BLUE,BitmapDataChannel.BLUE,256,256,DisplacementMapFilterMode.COLOR,0xFFFFFF,0);
		oDisplayBitmapData.applyFilter(oMeinBild,oBitmapData.rect,new Point(),oDisplacementMapFilter);
		
	}
	
	//Keyboard-Events
function hacked(event:KeyboardEvent){
	switch(event.keyCode){
		case Keyboard.UP:
			speed++;
			if(speed>=ccount/4) speed=ccount/4;
			//ExternalInterface.call("setSpeed",speed);
			break;
		case Keyboard.DOWN:
			speed--;
			if(speed<0)speed=0;
			//ExternalInterface.call("setSpeed",speed);
			break;
	}
}
//berechne Wellen
function calculateWaves(){
	for(var myY:int=0;myY<this.stage.stageHeight;myY++){
		for(var myX:int=0;myX<this.stage.stageWidth;myX++){
			var radius:Number=Math.sqrt((myX-this.stage.stageWidth/2)*(myX-this.stage.stageWidth/2)+
							(myY-this.stage.stageHeight/2)*(myY-this.stage.stageHeight/2));
			var color:int=Math.round(radius)%ccount;
			oBitmapData2.setPixel(myX,myY,color);
		
		}
	}
	initColors();
	oBitmapData.paletteMap(oBitmapData2,oBitmapData2.rect,new Point(),null,null,colorArray);
	var oDisplacementMapFilter:DisplacementMapFilter=new DisplacementMapFilter(oBitmapData,new Point(),BitmapDataChannel.BLUE,BitmapDataChannel.BLUE,256,256,DisplacementMapFilterMode.COLOR,0xFFFFFF,0);
	oDisplayBitmapData.applyFilter(oMeinBild,oBitmapData.rect,new Point(),oDisplacementMapFilter);
}

//Beim Klick nochmal neu zeichnen	
function onClick(event:MouseEvent){
	var thisCount:int=Math.random()*150+5;
	var thisAmpl:int=Math.round(Math.random()*((thisCount-5)/3)+5);
	updateWaves(thisCount,thisAmpl);
	//ExternalInterface.call("setValues",thisCount,thisAmpl);
}

calculateWaves();
var oBitmap:Bitmap=new Bitmap(oDisplayBitmapData);
addChild(oBitmap);
addEventListener(Event.ENTER_FRAME,doEvent);
stage.addEventListener(KeyboardEvent.KEY_DOWN,hacked);
stage.addEventListener(MouseEvent.CLICK,onClick);
//ExternalInterface.addCallback("changeValues",updateWaves);
//ExternalInterface.addCallback("updateSpeed",setSpeed);