Forked from:: clockmaker's Ginny Effect Modoki

forked from: Ginny Effect Modoki

Ginny Effect Modoki
*
* 作ってしまいました。。。
*
* Inspired by
* http://fladdict.net/blog/2009/09/flash-ginny-effect.html
* http://fladdict.net/exp/ginnyeffect/
* http://twitter.com/fladdict/status/3842965317
*
* Photo by
* http://www.flickr.com/photos/88403964@N00/2662752839/ (by Yasu)
*
* 9/9(Wed) 04:00 first post　http://twitter.com/clockmaker/status/3845570478
* ※ Mac OS X の隠しエフェクトの「Suck」っぽい http://bit.ly/11vMDh

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license : MIT License
modified : 2010-02-16 00:51:27

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// forked from clockmaker's Ginny Effect Modoki
/**
 * Ginny Effect Modoki
 * 
 * 作ってしまいました。。。
 * 
 * Inspired by
 * http://fladdict.net/blog/2009/09/flash-ginny-effect.html
 * http://fladdict.net/exp/ginnyeffect/
 * http://twitter.com/fladdict/status/3842965317
 *
 * Photo by 
 * http://www.flickr.com/photos/88403964@N00/2662752839/ (by Yasu)
 *
 * 9/9(Wed) 04:00 first post　http://twitter.com/clockmaker/status/3845570478
 * ※ Mac OS X の隠しエフェクトの「Suck」っぽい http://bit.ly/11vMDh
 */
package {
    import flash.display.*;
    import flash.events.*;
    import flash.geom.*;
    import flash.net.*;
    import flash.system.*;
    import org.libspark.betweenas3.BetweenAS3;
    import org.libspark.betweenas3.easing.*;
    import org.libspark.betweenas3.tweens.ITween;
    import com.bit101.components.*;
    
    [SWF(frameRate = 60)]
    public class Main extends Sprite {
        
        private const IMAGE_URL:String = "http://news.xinhuanet.com/shuhua/2008-01/16/xinsrc_4920105161004140767818.jpg";
        private const IMG_W:int = 500;
        private const IMG_H:int = 375;
        private const SEGMENT:int = 20;
        private var loader:Loader;
        private var vertexs:Array;
        private var sprite:Sprite;
        private var isHide:Boolean = false;
        private var isShift:Boolean = false;
        
        public function Main():void {
            // init
            stage.quality = StageQuality.MEDIUM;
            graphics.beginFill(0x0);
            graphics.drawRect(0, 0, 465, 465);
            
            new Label(this, 360, 440, "PLEASE EAT STAGE")
            
            // load
            var context:LoaderContext = new LoaderContext(true);
            loader = new Loader();
            loader.contentLoaderInfo.addEventListener(Event.COMPLETE, compHandler);
            loader.load(new URLRequest(IMAGE_URL), context);
        }
        
        private function compHandler(e:Event):void {
            sprite = new Sprite();
            addChild(sprite);
            vertexs = []
            for (var xx:int = 0; xx < SEGMENT; xx++) {
                vertexs[xx] = [];
                for (var yy:int = 0; yy < SEGMENT; yy++) {
                    vertexs[xx][yy] = new Point(xx * IMG_W / SEGMENT, yy * IMG_H/SEGMENT);
                }
            }
            draw();
            addEventListener(Event.ENTER_FRAME, draw);
            stage.addEventListener(MouseEvent.CLICK, clickHandler);
            stage.addEventListener(KeyboardEvent.KEY_UP, keyUpHandler);
            stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler);
        }
        
        private function clickHandler(e:MouseEvent):void {
            var tweens:Array = [];
            var xx:int, yy:int, delay:Number;
            var px:Number = SEGMENT * (mouseX / IMG_W);
            var py:Number = SEGMENT * (mouseY / IMG_H);
            
            if (!isHide) {
                for (xx = 0; xx < SEGMENT; xx++) {
                    for (yy = 0; yy < SEGMENT; yy++) {
                        vertexs[xx][yy] = new Point(xx * IMG_W / SEGMENT, yy * IMG_H/SEGMENT);
                        delay = Math.sqrt((xx - px) * (xx - px) + (yy - py) * (yy - py)) / 40;
                        
                        tweens.push(
                            BetweenAS3.delay(
                                BetweenAS3.tween(vertexs[xx][yy], {
                                    x : px * IMG_W / SEGMENT,
                                    y : py * IMG_H / SEGMENT
                                },null, delay, Cubic.easeIn),
                                delay / 2
                            )
                        )
                    }
                }
            }else {
                // 重み付けが怪しい・・・
                var max:Number = 0;
                for (xx = 0; xx < SEGMENT; xx++) {
                    for (yy = 0; yy < SEGMENT; yy++) {
                        vertexs[xx][yy] = new Point(px * IMG_W / SEGMENT, py * IMG_H / SEGMENT);
                        delay = Math.sqrt((xx - px) * (xx - px) + (yy - py) * (yy - py))
                        max = Math.max(max, delay);
                    }
                }
                for (xx = 0; xx < SEGMENT; xx++) {
                    for (yy = 0; yy < SEGMENT; yy++) {
                        delay = (max - Math.sqrt((xx - px) * (xx - px) + (yy - py) * (yy - py))) / 40;
                        tweens.push(
                            BetweenAS3.delay(
                                BetweenAS3.tween(vertexs[xx][yy], {
                                    x : xx * IMG_W / SEGMENT,
                                    y : yy * IMG_H / SEGMENT
                                },null, delay + 0.05, Quad.easeOut),
                                delay / 2
                            )
                        )
                    }
                }
            }
            
            var itw:ITween = BetweenAS3.parallelTweens(tweens);
            if (isShift) itw = BetweenAS3.scale(itw, 5);
            itw.play();
            
            isHide = !isHide;
        }
        
        /**
         * drawTriangles でテクスチャを貼り付けるメソッド
         * 参考： http://wonderfl.net/code/e7e1e28a9f20d73f11f0bb02d3e4b5f512c7cc0f
         */
        private function draw(e:Event = null):void {
            var vertices:Vector.<Number> = new Vector.<Number>();
            var indices:Vector.<int> = new Vector.<int>();
            var uvtData:Vector.<Number> = new Vector.<Number>();
            
            for (var xx:int = 0; xx < SEGMENT; xx++) {
                for (var yy:int = 0; yy < SEGMENT; yy++) {
                    vertices[vertices.length] = vertexs[xx][yy].x
                    vertices[vertices.length] = vertexs[xx][yy].y
                    uvtData[uvtData.length] = xx / SEGMENT;
                    uvtData[uvtData.length] = yy / SEGMENT;
                }
            }
            
            for (var i:int = 0; i < SEGMENT - 1; i++) {
                for (var j:int = 0; j < SEGMENT - 1; j++) {
                    indices.push(i * SEGMENT + j, i * SEGMENT + j + 1, (i + 1) * SEGMENT + j);
                    indices.push(i * SEGMENT + j + 1, (i + 1) * SEGMENT + 1 + j, (i + 1) * SEGMENT + j);
                }
            }
            
            var g:Graphics = sprite.graphics;
            g.clear();
            g.beginBitmapFill(Bitmap(loader.content).bitmapData);
            g.drawTriangles(vertices, indices, uvtData);
            g.endFill();
        }
        
        /**
         * Shiftキーを押してるとスローモーションになる
         * macの挙動と同じように
         */
        private function keyUpHandler(e:KeyboardEvent):void {
            if(e.keyCode == 16) isShift = false;
        }
        
        private function keyDownHandler(e:KeyboardEvent):void {
            if(e.keyCode == 16) isShift = true;
        }
    }
}

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