EasingDocument1

by 883108 14 Mar 2010

Embed

/**
 * Copyright 883108 ( http://wonderfl.net/user/883108 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/b8Au
 */

package {
	import flash.display.*;
	import flash.events.*;
	import flash.text.*;

	public class EasingDocument1 extends Sprite {
		private var _ball:Ball;
		private var _easing:Number = .2;
		private var _targetX:Number;
		private var _targetY:Number;
		
		public function EasingDocument1() {
			init();
		}

		private function init():void {
			stage.scaleMode = StageScaleMode.NO_SCALE;
			stage.align = StageAlign.TOP_LEFT;
			
			var tex:TextField = new TextField  ;
			addChild(tex);
			tex.width = 450;
			tex.x = tex.y = 10;
			tex.multiline = true;
			
			tex.text = 'クリックした位置にボールが徐々に近づき、その後はマウスストーカーになります。\n';
			
			// ステージ上にスプライトを配置します。
			addChild(_ball = new Ball);
			_ball.x = stage.stageWidth / 2;
			_ball.y = stage.stageHeight / 2;
			// イベントハンドルを設定します。
			

			stage.addEventListener(MouseEvent.CLICK, clickHandler);
		}
		
		private function clickHandler($event:MouseEvent):void{
			addEventListener(Event.ENTER_FRAME, enterFrameHandler);
		}
		
		private function enterFrameHandler($event:Event):void{
			_targetX = mouseX;
			_targetY = mouseY;
			

			var distanceX:Number = _targetX - _ball.x;
			var distanceY:Number = _targetY - _ball.y;
			
			if(Math.abs(distanceX) < .5 && Math.abs(distanceY) < .5){
				//trace(distanceX, distanceY)
				_ball.x = _targetX;
				_ball.y = _targetY;
				//removeEventListener(Event.ENTER_FRAME, enterFrameHandler);
			}else{
				_ball.x = _ball.x + distanceX * _easing;
				_ball.y = _ball.y + distanceY * _easing;
			}
		}
	}
}

import flash.display.Sprite;
class Ball extends Sprite {
	private var _radius:Number = 10;
	function Ball(){
		init();
	}
	
	private function init():void{
		graphics.beginFill(0x000000);
		graphics.lineStyle(0, 0x999999);
		graphics.drawCircle(0, 0, _radius);
	}
	
	public function get radius():Number{
		return _radius;
	}
}