samplehittest.as

《Flash AS3殿堂之路》光盘源码 学习ActionScript 3.0

package org.kingda.book.display
{
	import flash.display.Sprite;
	import flash.events.Event;
	public class SampleHittest extends Sprite
	{
		private var circle:Sprite;
		public function SampleHittest() {
			circle = new Sprite();
			circle.graphics.beginFill(0x669900);
			circle.graphics.drawCircle(0,0,10);
			circle.graphics.endFill();

			var rectA:RectSprite = new RectSprite("A", 0xffcc00);			
			rectA.mouseChildren = false;
			rectA.name = "A";
			rectA.x = 100,	rectA.y = 50;
			
			var pointStar:StarShape = new StarShape();
			pointStar.x = 200,	pointStar.y = 200;
			pointStar.width = 10; pointStar.height = 10;
			addChild(pointStar);
			
			addChild(rectA);
			addChild(circle);
			circle.startDrag(true);
			rectA.addEventListener(Event.ENTER_FRAME, isHit);
		}
		private function isHit(evt:Event):void {
			if (circle.hitTestObject(evt.target as RectSprite)) {
				trace ("碰到了Rect A");
			}
			if (circle.hitTestPoint(200, 200, true)) {
				trace ("碰到了坐标点（200，200）");
			}
		}
	}
}