BitmapDataとhitTest

by hoooooonda 07 Jul 2011

• Forked from hoooooonda's BitmapとhitTest
• Diff: 47
• Related works: 1
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/**
 * Copyright hoooooonda ( http://wonderfl.net/user/hoooooonda )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/tZcC
 */

// forked from hoooooonda's hitTest1
// forked from hoooooonda's パーティクルと当たり判定
package {
    import flash.geom.Rectangle;
    import flash.geom.Matrix;
    import flash.net.URLRequest;
    import flash.utils.Proxy;
    import flash.geom.Point;
    import flash.ui.Mouse;
    import flash.events.*;
    import flash.display.*;
    import flash.system.*;
    public class FlashTest extends Sprite {
        public var loader:Loader;
        public var loader2:Loader;    
        public var bmp1:Bitmap;
        public var bmp2:Bitmap;
        public var bmpd1:BitmapData;
        public var bmpd2:BitmapData;
        public var resetRect:Rectangle;
        public var rect1:Rectangle;
        public var rect2:Rectangle;
        public var pos1:Point;
        public var pos2:Point;
        
        public function FlashTest() {
           Security.loadPolicyFile("http://hr-portfolio.main.jp/crossdomain.xml"); 
                      
           loader = new Loader();
           loader.load(new URLRequest("http://hr-portfolio.main.jp/test.png"));
           loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loaded);

           loader2 = new Loader();
           loader2.load(new URLRequest("http://hr-portfolio.main.jp/test2.png"));
           loader2.contentLoaderInfo.addEventListener(Event.COMPLETE, loaded);
           
           bmp1 = new Bitmap();
           bmp1.bitmapData = new BitmapData(stage.stageWidth, stage.stageHeight, true, 0x00000000);
           addChild(bmp1);
           bmp2 = new Bitmap();
           bmp2.bitmapData = new BitmapData(stage.stageWidth, stage.stageHeight, true, 0x00000000);
           addChild(bmp2);
          
           resetRect = new Rectangle(0, 0, stage.stageWidth, stage.stageHeight);
           pos1 = new Point(0, 0);
           pos2 = new Point(0, 0);
                      
           addEventListener(Event.ENTER_FRAME, loop);
        }
        
        public function loaded(e:Event):void
        {
           var bmpd:BitmapData;
           var rect:Rectangle;
           
           var holder:Sprite = new Sprite();
           holder.addChild(e.target.loader);
           
           bmpd = new BitmapData(holder.width, holder.height, true, 0x00000000);           
           bmpd.draw(holder);
           
           rect = new Rectangle(0, 0, holder.width, holder.height);
           if(e.target.loader == loader)
           {
              bmpd1 = bmpd;
              rect1 = rect;
           }else
           {
              bmpd2 = bmpd; 
              rect2 = rect;
           }
        }
        
        public function loop(e:Event):void
        {
            pos1.x = mouseX - bmpd1.width/2;
            pos1.y = mouseY - bmpd1.height/2;
            pos2.x = stage.stageWidth/2 - bmpd2.width/2;
            pos2.y = stage.stageHeight/2 - bmpd2.height/2;
            
            bmp1.bitmapData.fillRect(resetRect, 0x00000000);
            bmp1.bitmapData.copyPixels(bmpd1, rect1, pos1, null, null, true);
            
            bmp2.bitmapData.fillRect(resetRect, 0x00000000);
            bmp2.bitmapData.copyPixels(bmpd2, rect2, pos2, null, null, true);
            
            if(bmpd1.hitTest(pos1, 255, bmpd2, pos2, 255))
            {
                bmp1.alpha = 0.5;
            }else
            {
                bmp1.alpha = 1;
            }
        }

    }
}