[ActionScript] AS3代碼實現曝光過度效果

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 1 package  2 { 3     import flash.display.Loader; 4     import flash.display.SimpleButton; 5     import flash.display.Sprite; 6     import flash.events.Event; 7     import flash.events.MouseEvent; 8     import flash.geom.ColorTransform; 9     import flash.net.URLRequest;10     11     /**12      * ...13      * @author FrostYen14      */15     public class ColorTransformExample extends Sprite16     {17         private var _ldr:Loader = new Loader();18         private var _sp:Sprite = new Sprite();19         private var _btn:Sprite = new Sprite();20         private var _colorTransform:ColorTransform = new ColorTransform(1, 1, 1, 1, 255, 255, 255, 0);21         private var _frame:int=15;//相當於影片剪輯動畫的幀數22         public function ColorTransformExample() {23             24             _ldr.load(new URLRequest("image/farewell-to-fall.jpg"));25             _sp.transform.colorTransform = _colorTransform;26             27             _btn.graphics.beginFill(0x666666);28             _btn.graphics.drawRect(0, 0, 100, 50);29             _btn.graphics.endFill();30             _btn.buttonMode = true;31             _btn.x = 700;32             _btn.y = 100;33 34             this.addChild(_btn);35             this.addChild(_sp);36             _sp.addChild(_ldr);37             stage.frameRate = 36;//幀頻38             39             _ldr.contentLoaderInfo.addEventListener(Event.COMPLETE, onImageLoaded);40             _btn.addEventListener(MouseEvent.CLICK, onClick);41         }42         43         private function onClick(e:MouseEvent):void 44         {45             addEventListener(Event.ENTER_FRAME, onEnter);46         }47         48         private function onEnter(e:Event):void 49         {50             if (_colorTransform.redOffset > 0) {51                 _colorTransform.redOffset -= 255/_frame;52                 _colorTransform.greenOffset -= 255/_frame;53                 _colorTransform.blueOffset -= 255/_frame;54                 _sp.transform.colorTransform = _colorTransform;55             }else {56                 _colorTransform = new ColorTransform(1, 1, 1, 1, 255, 255, 255, 0);57                 removeEventListener(Event.ENTER_FRAME, onEnter);58             }59         }60         61         private function onImageLoaded(e:Event):void 62         {63             64         }65     }66     67 }

 

[ActionScript] AS3代碼實現曝光過度效果