横回転3Dキューブ

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license : MIT License
modified : 2010-12-09 18:39:39

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package
{
    import flash.display.Sprite;
    import flash.events.Event;
    
    public class FlashTest extends Sprite
    {
        private var angle:Number = 0;
        private var centerX:Number = stage.stageWidth / 2;
        private var centerY:Number = stage.stageHeight / 2 - 50;
        private var radiusx:Number = 84;
        private var radiusy:Number = 40;
        private var speed:Number = .05;
        
        public function FlashTest()
        {
            addEventListener(Event.ENTER_FRAME, onEnterFrame);
            var linex1:Number;
            var liney1:Number;
            var linex2:Number;
            var liney2:Number;
            var linex3:Number;
            var liney3:Number;
            var linex4:Number;
            var liney4:Number;
            
            function onEnterFrame(event:Event):void
            {
                linex1 = centerX + Math.sin(angle) * radiusx;
                liney1 = centerY + Math.cos(angle) * radiusy;
                linex2 = centerX + Math.cos(angle) * radiusx;
                liney2 = centerY + Math.sin(angle) * radiusy * -1;
                linex3 = centerX + Math.sin(angle) * radiusx * -1;
                liney3 = centerY + Math.cos(angle) * radiusy * -1;
                linex4 = centerX + Math.cos(angle) * radiusx * -1;
                liney4 = centerY + Math.sin(angle) * radiusy;
                angle += speed;
                graphics.clear();
                graphics.lineStyle (1, 0xffffff, 1.0);    // 線のスタイル指定
                graphics.beginFill (0x777777, 1.0);    // 面のスタイル設定
                graphics.moveTo (linex1, liney1);
                graphics.lineTo (linex2, liney2);
                graphics.lineTo (linex3, liney3);
                graphics.lineTo (linex4, liney4);
                
                if (linex1 <= linex2)
                {
                    graphics.moveTo(linex1, liney1);
                    graphics.lineTo (linex2, liney2);
                    graphics.lineTo (linex2, liney2 + 100);
                    graphics.lineTo (linex1, liney1 + 100);
                }
                if (linex2 <= linex3)
                {
                    graphics.moveTo(linex2, liney2);
                    graphics.lineTo (linex3, liney3);
                    graphics.lineTo (linex3, liney3 + 100);
                    graphics.lineTo (linex2, liney2 + 100);
                }
                if (linex3 <= linex4)
                {
                    graphics.moveTo(linex3, liney3);
                    graphics.lineTo (linex4, liney4);
                    graphics.lineTo (linex4, liney4 + 100);
                    graphics.lineTo (linex3, liney3 + 100);
                }
                if (linex4 <= linex1)
                {
                    graphics.moveTo(linex4, liney4);
                    graphics.lineTo (linex1, liney1);
                    graphics.lineTo (linex1, liney1 + 100);
                    graphics.lineTo (linex4, liney4 + 100);
                }
                
            }
        }
    }
}

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