ColorfulStar

クリックしたら星が出る何か

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favorite:7
lines:92
license : MIT License
modified : 2010-08-04 23:45:56

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//    クリックしたら星が出る何か

package {
    import flash.display.BlendMode;
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.events.MouseEvent;
    import flash.filters.GlowFilter;    
    import org.libspark.betweenas3.BetweenAS3;
    import org.libspark.betweenas3.tweens.ITween;
    [SWF(backgroundColor=0x0,height=465,width=465)]
    
    
    public class Main extends Sprite
    {
        private var circle:Sprite;
        private var stars:Array=[];    
        
        public function Main(){
        stage.addEventListener(MouseEvent.MOUSE_DOWN,setCircle);
        }
    
    
    //丸を作る
    private function makeCircle():Sprite{
        var cc:Sprite = new Sprite();
        cc.graphics.beginFill(Math.random()*0xffffff);
        //ここの環境での値
        cc.graphics.drawCircle(0,0,20);
        /*
        //FlexBuilderの環境での値
        cc.graphics.drawCircle(0,0,10);
        */
        cc.graphics.endFill();
        return cc;
    }
    
    //クリックされたときに丸を表示する
    private function setCircle(e:MouseEvent):void{
        circle = makeCircle();
        
        for(var angle:int = 0 ; angle < 360 ; angle += 30){
            var star:Star = new Star(Math.random()*0xffffff,20,5,mouseX,mouseY,Math.cos(angle*Math.PI/180)*5,Math.sin(angle*Math.PI/180)*5);
            star.filters = [new GlowFilter(0xffffff,1,7,7,2)];
            star.blendMode = BlendMode.ADD;
            stars.push(star);
            addChild(star);
        }
        
        circle.filters = [new GlowFilter(0xffffff,2,30,30,3)];
        circle.blendMode = BlendMode.ADD;
        addChild(circle);
        addEventListener(Event.ENTER_FRAME,onEnterframe);
    
        //丸を拡大させた後に縮小させる動作
            var exp:ITween = BetweenAS3.tween(circle,{scaleX:4,scaleY:4),null,0.25);
            var shr:ITween = BetweenAS3.tween(circle,{scaleX:0,scaleY:0},null,0.3);
            BetweenAS3.serial(exp,shr).play();

circle.x = mouseX;
        circle.y = mouseY;
    }

//星をフレーム毎に動かし、ステージ上にあるかをチェックする    
    private function onEnterframe(e:Event):void{
        for(var i:int = 0;i<stars.length;i++){
        stars[i].move();
        
        if(stars[i].x<-50||stage.stageWidth+50<stars[i].x||
            stars[i].y<-50||stage.stageHeight+50<stars[i].y){
                removeChild(stars[i]);
                stars.splice(i--,1);
            }
        }
    }
    }
}

//星を作っていくクラス
import flash.display.Sprite;    
class Star extends Sprite
{
    public var vx:Number;
    public var vy:Number;
        
    public function Star(color:uint,r:Number,p:int,x:Number,y:Number,vx:Number,vy:Number)
    {
        var r2:Number=r/2;
        var angle:Number=0;
        var addition:Number=360/(p*2);
        
        graphics.beginFill(color);    
        graphics.moveTo(r,0);
        
        for(var i:uint=0;i<p*2;i++){
            angle += addition;
            var to_x:Number;
            var to_y:Number;
            var radian:Number=angle*Math.PI/180;
    
            if(i%2){
                to_x=r*Math.cos(radian);
                to_y=r*Math.sin(radian);
            }else{
                to_x=r2*Math.cos(radian);
                to_y=r2*Math.sin(radian);
            }
            graphics.lineTo(to_x,to_y);
        }
        graphics.endFill();
        
        this.x = x;
        this.y = y;
        this.vx = vx;
        this.vy = vy;
    }
    
    //星を動かしていく
    public function move():void{
        
        //下に落ちていくおまけ動作
        //vy+=0.8;
        
        x+=vx;
        y+=vy;
        rotationY+=50;
    }
}

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