键盘按下 子弹射击 (有间隔)

/*文档类*/

package 

{

	import flash.display.Sprite;

	import flash.events.KeyboardEvent;

	import flash.events.Event;

	import flash.ui.Keyboard;



	public class Main extends Sprite

	{



		private var flag:Boolean = true;

		private var bulletArr:Array = new Array  ;

		private var bullet:Bullet;

		private var time:int;



		public function Main()

		{

			stage.addEventListener(KeyboardEvent.KEY_DOWN,keyDownHandler);

			stage.addEventListener(KeyboardEvent.KEY_UP,keyUpHandler);

			addEventListener(Event.ENTER_FRAME,enterFrameHandler);

		}



		private function keyDownHandler(e:KeyboardEvent):void

		{

			if (e.keyCode == Keyboard.SPACE)

			{

				if(time==0)

				{

					fire();

				}

				time++;

				//flag = false;

				if (time % 5 == 0)

				{

					fire();

				}

			}

			else if (e.keyCode == Keyboard.A)

			{

				mc.x -=  5;

			}

			else if (e.keyCode == Keyboard.D)

			{

				mc.x +=  5;

			}

		}



		private function keyUpHandler(e:KeyboardEvent):void

		{

			if (e.keyCode == Keyboard.SPACE)

			{

				//flag = true;

				time = 0;

			}

		}



		private function enterFrameHandler(e:Event):void

		{

			for (var i:int=0; i<bulletArr.length; i++)

			{

				if (bulletArr[i].y < 0)

				{

					removeChild(bulletArr[i]);

					bulletArr.splice(i,1);

				}

			}

		}



		private function fire():void

		{

			bullet = new Bullet(10,10,0XFF0000);

			bullet.x = mc.x;

			bullet.y = mc.y;

			addChild(bullet);

			bulletArr.push(bullet);

		}



	}



}

/*子弹类*/

package 

{

	import flash.display.Sprite;

	import flash.events.Event;



	public class Bullet extends Sprite

	{

		private var _width:Number;

		private var _height:Number;

		private var color:uint;

		private var bullet:Bullet;



		public function Bullet(_width:Number=10,_height:Number=10,color:uint=0XFF0000)

		{

			this._width = _width;

			this._height = _height;

			this.color = color;

			drawBullet();

			addEventListener(Event.ENTER_FRAME,enterFrameHandler,false,0,true);

		}





		private function drawBullet():void

		{

			graphics.beginFill(color);

			graphics.drawRect(0,0,_width,_height);

			graphics.endFill();

		}



		private function enterFrameHandler(e:Event):void

		{

			if (this.y >-10)

			{

				this.y -=  5;

			}

		}



	}

}