【AS3代码】一个完整的游戏框架

package
{
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;

public class Main extends Sprite
{
public static const STATE_INIT:int = 10;
public static const STATE_PLAY:int = 20;
public static const STATE_GAME_OVER:int = 30;
public var gameState:int = 0; //游戏状态
public var clicks:int = 0; //游戏点击次数

public function Main():void
{
init();
}
private function init():void
{
this.addEventListener(Event.ENTER_FRAME, gameLoop);
gameState = STATE_INIT;
}

public function gameLoop(e:Event):void
{
switch(gameState)
{
case STATE_INIT:
initGame();
break;
case STATE_PLAY:
playGame();
break;
case STATE_GAME_OVER:
gameOver();
break;
}
}

public function initGame():void
{
//初始化游戏，当按钮被点击后，点击次数归零，状态改为游戏开始
stage.addEventListener(MouseEvent.CLICK, onMouseClickEvent);
clicks = 0;
gameState = STATE_PLAY;
}
public function playGame():void
{
//若游戏被点击了10次，状态改为游戏结束
if(clicks >= 10)
{
gameState = STATE_GAME_OVER;
}
}
public function onMouseClickEvent(e:MouseEvent):void
{
clicks++; //游戏点击次数+1
trace("点击了" + clicks + "次游戏!");
}
public function gameOver():void
{
//注销游戏监听器
stage.removeEventListener(MouseEvent.CLICK, onMouseClickEvent);
gameState = STATE_INIT;
trace("游戏结束!");
}
}
}