spray

by majoraze 21 Nov 2010

Embed

/**
 * Copyright majoraze ( http://wonderfl.net/user/majoraze )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/gT4j
 */

package {
    import flash.display.Sprite;
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.events.MouseEvent;
    import flash.events.Event;
    import flash.filters.BlurFilter;
    
    public class Spray extends Sprite {
        private var canvas:BitmapData;
        private var color:uint;
        private var size:Number = 50;
        private var density:Number = 50;
        
        public function Spray() {
            init();
        }
        
        private function init():void {
            canvas = new BitmapData(stage.stageWidth, stage.stageHeight, true, 0x00000000);
            var bmpCanvas:Bitmap = new Bitmap(canvas);
            addChild(bmpCanvas);
            
            stage.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
            stage.addEventListener(MouseEvent.MOUSE_UP, onMouseUp);
        }
        
        private function onMouseDown(e:MouseEvent):void {
            color = Math.random() * 0xffffff + 0xff000000;
            addEventListener(Event.ENTER_FRAME, onEnterFrame);
        }
        
        private function onMouseUp(e:MouseEvent):void {
            removeEventListener(Event.ENTER_FRAME, onEnterFrame);
        }

        private function onEnterFrame(e:Event):void {
            for (var i:int = 0; i < density; i++) {
                var angle:Number = Math.random() * Math.PI * 2;
                var radius:Number = Math.random() * size;
                var xpos:Number = mouseX + Math.cos(angle) * radius;
                var ypos:Number = mouseY + Math.sin(angle) * radius;
                canvas.setPixel32(xpos,ypos,color);
                
            }

        }


    }
}