flash on 2010-4-28

/**
 * Copyright foo9 ( http://wonderfl.net/user/foo9 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/jpAK
 */

package {
    import flash.display.Graphics;
    import flash.display.Sprite;
    import flash.display.Shape;
    
    import flash.text.TextField;
    import flash.text.TextFieldAutoSize;
    import flash.events.Event;
    import flash.events.KeyboardEvent;
    import flash.ui.Keyboard;
    	import flash.display.BitmapData;
	import flash.display.Bitmap;
    
    public class FlashTest extends Sprite {
    	
    		//public static const TEXT:String = "厂下广卞廿士十亠卉半与本二上旦";  // ?
    		//public static const TEXT:String = "猫マナー猫マナー猫マナー猫マナー";  // ?
    		//public static const TEXT:String = "123456789012345678901234567890";
    		public static const TEXT:String = "一 二 三 四 五 六 七 八 九 十 零";
    	
        public function FlashTest() {
            var shape:Shape = new Shape();
			addChild(shape);
			shape.x = stage.stageWidth * 0.5;
			shape.y = stage.stageHeight * 0.5;
			var g:Graphics = shape.graphics;
			g.lineStyle(1, 0x000000, 1.0);
			g.beginFill(0xcccccc);
			
            	var r:Number = 170.0;
			var n:uint = 99;
			var rate:Number;
			var x:Number;
			var y:Number;
			
			x = r * Math.cos(0);
			y = r * Math.sin(0);
			var x0:Number = x;
			var y0:Number = y;
			var x1:Number;
			var y1:Number;
			g.moveTo(x0, y0);
			for (var i:uint = 1; i < n + 1; i++) {
				rate = i / n;
				x1 = r * Math.cos(2.0 * Math.PI * rate);
				y1 = r * Math.sin(2.0 * Math.PI * rate);
				g.lineTo(x1, y1);
				
				//２点でできる線の角度を求める? ?
				var rotation:Number = Math.atan2(y1 - y0, x1 - x0) * 180 / Math.PI;
				
				//TODO:
				var tf:TextField;
				var bm:Bitmap;
				var bmd:BitmapData;
				var sp:Sprite;
				tf = new TextField();
				tf.text = TEXT; // + " " + i.toString();
				tf.autoSize = TextFieldAutoSize.LEFT;
				bmd = new BitmapData(tf.width, tf.height, true, 0x00ffffff);
				bmd.draw(tf);
				bm = new Bitmap(bmd, "auto", true);
				bm.smoothing = true;
				sp = new Sprite();
				sp.addChild(bm);
				addChild(sp);
				sp.x = x1 - x0 + stage.stageWidth * 0.5;
				sp.y = y1 - y0 + stage.stageHeight * 0.5;
				sp.rotation = rotation;
				sp.scaleX = sp.scaleY = 1.0;
				x0 = x1;
				y0 = y1;
			}
			g.endFill();
			
			stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDown);
        }
        
        private function keyDown(event:KeyboardEvent):void {
        		if( (event.keyCode == 13) || (event.keyCode == Keyboard.ENTER) ) {
        			//TODO:
        			
        		}
        }
    }
}