円運動

...
@author oreore

forked:7
favorite:2
lines:64
license : MIT License
modified : 2010-04-03 14:48:34

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package 
{
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.utils.*;
	
	/**
	 * ...
	 * @author oreore
	 */
	public class Main extends Sprite 
	{
		private var _arrow:Arrow;
		private var rotate:Number = 0;
		private var _stageH:Number;
		private var _stageW:Number;
		private var _stageH2:Number;
		private var _stageW2:Number;
		
		public function Main():void 
		{
			if (stage) init();
			else addEventListener(Event.ADDED_TO_STAGE, init);
		}
		
		private function init(e:Event = null):void 
		{
			
			removeEventListener(Event.ADDED_TO_STAGE, init);
			
			_stageH = stage.stageHeight;
			_stageW = stage.stageWidth;
			_stageH2 = stage.stageHeight *.5;
			_stageW2 = stage.stageWidth *.5;
			
			//矢印を作成
			_arrow = new Arrow();
			_arrow.x = stage.stageWidth*.5;
			_arrow.y = stage.stageHeight * .5;
			addChild(_arrow);
			
			this.addEventListener(Event.ENTER_FRAME, onLoop);
			
		}
		
		
		private function onLoop(e:Event):void 
		{
			rotate += 2;
			var rad:Number = rotate*Math.PI/180;
			
			var sin:Number = Math.sin(rad);
			var cos:Number = Math.cos(rad);
			
			_arrow.x = sin * 200 + _stageW2;
			_arrow.y = cos * 200 + _stageH2;
			
		}
		
		
		
	}
	
}

import flash.display.Sprite;
	
	class Arrow extends Sprite
	{
		
		public function Arrow() 
		{
			init();
		}
		
		private function init():void
		{
			graphics.lineStyle(1, 0, 1)
			graphics.moveTo(-50, -25);
			graphics.beginFill(0xff6633);
			graphics.lineTo(0, -25);
			graphics.lineTo(0, -50);
			graphics.lineTo(50, 0);
			graphics.lineTo(0, 50);
			graphics.lineTo(0, 25);
			graphics.lineTo(-50,25);
			graphics.lineTo(-50,-25 );
			graphics.endFill();
		}	
	}

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