// forked from soundkitchen's sample 7 package { import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.Sprite; import flash.events.Event; import flash.events.MouseEvent; import caurina.transitions.Tweener; import caurina.transitions.properties.CurveModifiers; import frocessing.color.ColorHSV; [SWF(width=465, height=465, frameRate=30, backgroundColor=0xFFFFFF)] public class Sample extends Sprite { private var _isMouseDown:Boolean = false; private var _hsv:ColorHSV; public function Sample() { // CurveModifiers を有効化 CurveModifiers.init(); // ColorHSV を色相 0 で作成 _hsv = new ColorHSV(0, 1, 1, 1); stage.addEventListener(Event.ENTER_FRAME, enterFrameHandler); stage.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownHandler); stage.addEventListener(MouseEvent.MOUSE_UP, mouseUpHandler); } private function enterFrameHandler(evt:Event):void { // 色を更新 _hsv.h= ++_hsv.h % 360; // マウスダウンされていなければ処理しない if (!_isMouseDown) return; // Sprite を作成 var sp:Sprite = new Sprite(); sp.x = mouseX; sp.y = mouseY; sp.alpha = .2; sp.graphics.beginFill(_hsv.value); sp.graphics.drawCircle(0, 0, 20); sp.graphics.endFill(); addChild(sp); var endX:Number = Math.random() * stage.stageWidth; var ctlX:Number = mouseX + (endX - mouseX) / 2; Tweener.addTween(sp, { x: endX, y: stage.stageHeight, _bezier: [{x: ctlX, y:0 }], time: Math.random()* 4+1, transition: "linear", onComplete: onTweenComplete, onCompleteParams: [sp] }); } private function onTweenComplete(sp:Sprite):void { removeChild(sp); } private function mouseDownHandler(evt:MouseEvent):void { _isMouseDown = true; } private function mouseUpHandler(evt:MouseEvent):void { _isMouseDown = false; } } }