CMYK Sprayer 2D

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lines:97
license : MIT License
modified : 2010-01-21 16:10:07

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package
{
	import flash.display.BlendMode;
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.events.MouseEvent;
	import flash.text.TextField;
	import flash.text.TextFieldAutoSize;
	
	import org.as3lib.kitchensync.*;
	import org.as3lib.kitchensync.action.*;
	import org.as3lib.kitchensync.action.group.*;
	import org.as3lib.kitchensync.action.tween.AUTO_TWEEN_VALUE;
	import org.as3lib.kitchensync.action.tween.KSTween;
	import org.as3lib.kitchensync.action.tween.TweenFactory;
	import org.as3lib.kitchensync.easing.*;
	import org.as3lib.kitchensync.utils.*;
	
	[SWF(width='400', height='400', backgroundColor='#FFFFFF', frameRate='100')]
	public class CMYKSprayer extends Sprite
	{	
		public const STAGE_WIDTH:int = 400;
		public const STAGE_HEIGHT:int = 400;
		public const NUMBER_OF_SPRITES:int = 150;
		protected var _useMixing:Boolean = true;
		protected var _bg:Sprite;
		protected var frameRateView:FrameRateView;
		
		public function CMYKSprayer()
		{
			super();
			
			KitchenSync.initialize(this, "2.0");
			
			_bg = new Sprite();
			_bg.graphics.beginFill(0,1);
			_bg.graphics.drawRect(0,0,STAGE_WIDTH, STAGE_HEIGHT);
			_bg.visible = !_useMixing;
			addChild(_bg);
			
			// add children
			Oscillate.defaultFrequency = .1;
			
			// a group executes a tween each frame
			var group:AbstractActionGroup = new KSStaggeredGroup(16);	
			for (var i:int = 0; i < NUMBER_OF_SPRITES; i++) {

// create and center a new sprite
				var sprite:Sprite = new Sprite();
				sprite.x = stage.width/2; 
				sprite.y = stage.height/2;

if (_useMixing) { sprite.blendMode = BlendMode.MULTIPLY; }
				switch(Math.floor(Math.random() * 3)) {
					case 0: sprite.graphics.beginFill(0xFFFF00,1); break; // yellow
					case 1: sprite.graphics.beginFill(0xFF00FF,1); break; // magenta
				 	case 2: sprite.graphics.beginFill(0x00FFFF,1); break; // cyan
				 	default: sprite.graphics.beginFill(0x000000,1); // black
				}
				sprite.graphics.drawCircle(0,0,4);
				//sprite.alpha = .5;
				addChild(sprite);
				
				var scale:int = Math.random() * 14 + 1;
				var delay:int = 0;
				var radius:int = Math.random() * 250;
				var angle:int = Math.random() * 360;
				var x:int = sprite.x + Math.cos(angle) * radius;
				var y:int = sprite.y + Math.sin(angle) * radius;
				
				// create tweens for x y and scale
				var tweenx:KSTween = TweenFactory.newTween(sprite, "x", AUTO_TWEEN_VALUE, x, "1d", delay, Oscillate.absoluteSine);
				var tweeny:KSTween = TweenFactory.newTween(sprite, "y", AUTO_TWEEN_VALUE, y, "1d", delay, Oscillate.absoluteSine);
				var tweenxs:KSTween = TweenFactory.newTween(sprite, "scaleX", AUTO_TWEEN_VALUE, scale, "1d", delay, Oscillate.sine);
				var tweenys:KSTween = TweenFactory.newTween(sprite, "scaleY", AUTO_TWEEN_VALUE, scale, "1d", delay, Oscillate.sine);
				
				// add these to the group
				group.addAction(new KSParallelGroup(tweenx, tweeny, tweenxs, tweenys));
			}
			
			// add labels
			
			// framerate display
			frameRateView = new FrameRateView();
			addChild(frameRateView);
			
			// number of children text
			var childrenView:TextField = new TextField();
			childrenView.text = String(NUMBER_OF_SPRITES) + " children";
			childrenView.autoSize = TextFieldAutoSize.LEFT;
			childrenView.y = 30;
			addChild(childrenView);

var mixButtonLabel:TextField = new TextField();
			mixButtonLabel.text = "toggle mix";
			mixButtonLabel.textColor = 0xFFFFFF;
			mixButtonLabel.autoSize = TextFieldAutoSize.LEFT;
			mixButtonLabel.selectable = false;
			
			var mixButton:Sprite = new Sprite();
			mixButton.y = 50;
			mixButton.graphics.beginFill(0,1);
			mixButton.graphics.drawRect(0,0, mixButtonLabel.width, mixButtonLabel.height);
			addChild(mixButton);
			mixButton.addChild(mixButtonLabel);
			
			mixButton.addEventListener(MouseEvent.CLICK, toggleMixing);
			
			// execute the group.
			group.start();
			
			toggleMixing();
		}
		
		public function toggleMixing(event:Event = null):void {
			_useMixing = !_useMixing;
			_bg.visible = _useMixing ? false : true;
			frameRateView.textColor = _useMixing ? 0 : 0xFFFFFF; 
			for (var i:int = 0; i < numChildren; i++) { 
				var blob:Sprite = getChildAt(i) as Sprite;
				if (blob != null) {
					if (_useMixing) { blob.blendMode = BlendMode.MULTIPLY; }
					else { blob.blendMode = BlendMode.NORMAL; }
				}
			}
		}	
	}
}

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