Practice 2

by com4dc 23 Jan 2012

Tags

BitmapData
Embed

/**
 * Copyright com4dc ( http://wonderfl.net/user/com4dc )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/21cS
 */

package {
    import flash.geom.Point;
    import flash.geom.Matrix;
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.Sprite;
    import flash.display.StageAlign;
    import flash.display.StageScaleMode;
    import flash.events.MouseEvent;
    import flash.filters.GlowFilter;
    
    public class BitmapCollision1 extends Sprite {
        private var bmpd1:BitmapData;
        private var bmp1:Bitmap;
        private var bmpd2:BitmapData;
        private var bmp2:Bitmap;
        
        public function BitmapCollision1() {
            stage.align = StageAlign.TOP_LEFT;
            stage.scaleMode = StageScaleMode.NO_SCALE;
            
            var star:Star = new Star(50);
            
            bmpd1 = new BitmapData(100, 100, true, 0);
            bmpd1.draw(star, new Matrix(1, 0, 0, 1, 50, 50));
            bmp1 = new Bitmap(bmpd1);
            bmp1.x = 200;
            bmp1.y = 200;
            addChild(bmp1);
            
            // movable bitmap star
            bmpd2 = new BitmapData(100, 100, true, 0);
            bmpd2.draw(star, new Matrix(1, 0, 0, 1, 50, 50));
            bmp2 = new Bitmap(bmpd2);
            addChild(bmp2);
            
            stage.addEventListener(MouseEvent.MOUSE_MOVE, onMouseMoving);
        }
        
        private function onMouseMoving(event:MouseEvent):void {
            bmp2.x = mouseX - 50;
            bmp2.y = mouseY - 50;
            
            if( bmpd1.hitTest( new Point(bmp1.x, bmp1.y), 255, bmpd2, 
                                new Point(bmp2.x, bmp2.y), 255)) {
                bmp1.filters = [new GlowFilter()];
                bmp2.filters = [new GlowFilter()];
            }
            else {
                bmp1.filters = [];
                bmp2.filters = [];
            }
        }
    }
}

import flash.display.Sprite;
class Star extends Sprite {
        public function Star(radius:Number, color:uint = 0xffff00):void {
            graphics.lineStyle(0);
            graphics.moveTo(radius, 0);
            
            graphics.beginFill(color);
            
            for(var i:int = 1; i < 11; i++ ) {
                var radius2:Number = radius;
                if(i%2 > 0 ) {
                    radius2 = radius / 2;
                }
                
                var angle:Number = Math.PI * 2 / 10 * i;
                graphics.lineTo(Math.cos(angle) * radius2,
                                Math.sin(angle) * radius2 );
            }
        }
    }