www.pudn.com > photoFlow_AS3_001.rar > Effect.as

package com.flashloaded.as3.effects{ 
	 
	import flash.utils.*; 
	import flash.events.Event; 
	import flash.events.EventDispatcher; 
	import flash.display.Sprite; 
	import flash.display.DisplayObject; 
	 
	import sandy.util.DistortImage; 
	import com.flashloaded.as3.Points; 
	import com.flashloaded.as3.Item; 
	import com.flashloaded.as3.CustomEvent; 
	import com.flashloaded.as3.Points; 
	import com.flashloaded.as3.tween.Easing; 
	 
	 
	public class Effect extends EventDispatcher{ 
		 
		protected var item:Item; 
		private var _distort:DistortImage; 
		private var intervalId:int; 
		protected var tpoints:Points; 
		protected var _points:Points; 
		private var easingTween:Easing; 
		private var motioning:Boolean; 
		 
		 
		public function Effect(_item:Item=null){ 
			if(_item!=null){ 
				item=_item; 
			} 
			 
			easingTween=new Easing(speed); 
			easingTween.addEventListener(Event.COMPLETE,motionComplete); 
			 
		} 
		 
		public function init(d:Object,_item:Item):void{ 
	 
			item=_item; 
		} 
		 
		protected function transformImage(endPoints:Points):void{ 
			 
			item.addChild(distort.image); 
			distort.setTransform(endPoints.toArray()); 
			_points=endPoints; 
			 
		} 
		 
		protected function removeFromItem():void{ 
			if(item.contains(distort.image)) 
			item.removeChild(distort.image); 
		} 
		 
		 
		protected function transformMotionTo(points:Points):void{ 
			 
			if(!motioning){ 
				transformMotion(this.points,points); 
			}else{ 
				tpoints=points; 
			} 
		} 
		 
		protected function transformMotion(startPoints:Points,endPoints:Points):void{ 
			 
			transformImage(startPoints); 
			tpoints=endPoints; 
			motioning=true; 
			distort.image.addEventListener(Event.ENTER_FRAME,motion); 
			 
		} 
		 
		protected function motion(e:Event=null):void{ 
			transformImage(easingTween.getNextPoints(points,tpoints)); 
		} 
		 
		protected function motionComplete(e:Event):void{ 
			motioning=false; 
			distort.image.removeEventListener(Event.ENTER_FRAME,motion);			 
		} 
		 
		/*protected function transformImage(image:DisplayObject,startPoints:Points,endPoints):void{ 
			 
			distord=new DistortImage(image); 
			item.addChild(distord.image); 
			 
			distord.setTransform(startPoints.toArray()); 
			tpoints=endPoints; 
			 
			intervalId=setInterval(motion,speed); 
		}*/ 
		 
		 
		public function get points():Points{ 
			return _points; 
		} 
		 
		public function get distort():DistortImage{ 
			if(_distort==null){ 
				_distort=new DistortImage(item.image); 
			} 
			return _distort; 
		} 
		 
		public function set speed(num:Number):void{ 
			easingTween.speed=num; 
		} 
		 
		public function get speed():Number{ 
			//override 
			return 0; 
		}		 
		 
	} 
}