package{
	import de.popforge.audio.output.Audio;
	import de.popforge.audio.output.AudioBuffer;
	import de.popforge.audio.output.Sample;
	
	import flash.display.Sprite;
	import flash.events.MouseEvent;
	
	[SWF( backgroundColor='0x000000', frameRate='40', width='400', height='25')]
	public class SoundTest01 extends Sprite {
		
		private var buffer:AudioBuffer;
		private var mX:Number = 1;
		private var cursor:Number = 0;
		private var isPlaying:Boolean = false;
		
		public function SoundTest01()
		{			
			buffer=new AudioBuffer(4,Audio.STEREO,Audio.BIT16,Audio.RATE44100);
			buffer.onComplete=bufferOnComplete;

			stage.addEventListener(MouseEvent.MOUSE_MOVE, onMouseMove);
			stage.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
		}
		
		private function onMouseMove(e)
		{
			mX = isPlaying ? this.mouseX : 0;
			this.graphics.beginFill(mX / 400 * 255);
			this.graphics.drawRect(0,0, 400, 25);
			this.graphics.endFill();
		}
		
		private function onMouseDown(e)
		{
			if (isPlaying){	
				buffer.stop();
			}else{
				buffer.start();
			}
			isPlaying = !isPlaying;
		}
		
		private function bufferOnComplete(buffer:AudioBuffer):void{
			var freq:Number = mX * 3 + 1;
			var samples:Array=buffer.getSamples();
			var len:int=samples.length;
			var sample:Sample;
			var amp:Number;
			var i:int;
			for(i=0;i<len;i++){
				sample=samples[i];
				amp = Math.sin(cursor);
				sample.left=amp;
				sample.right=amp;
				cursor += Math.PI * 2 * freq / Audio.RATE44100;
				cursor %= Math.PI * 2;
			}
			buffer.update();
		}
	}
}