Question

我有一个游戏。（感觉下载here）

在我的游戏中，您可能会注意到该男子不会自行移动。你必须点击屏幕一次才能让那个人用箭头键左右移动。

My Main.as：

package 
{
import flash.display.MovieClip;
import flash.utils.Timer;
import flash.utils.getTimer;
import flash.events.TimerEvent;
import flash.display.Stage;
import flash.events.Event;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;
import flash.display.DisplayObjectContainer;
import flash.text.TextField;
import flash.events.MouseEvent;
import flash.display.Graphics;
import flash.display.Sprite;
import flash.geom.ColorTransform;
import flash.text.TextFormat;
import flash.text.engine.TextBaseline;

public dynamic class Main extends MovieClip
{
    // classes
    private var _physics:Physics;
    private var _timer:Timer;
    var interval_timer:TextField = new TextField();
    private var startTime:int;
    private var diff:int;
    private var _timer2:Timer
    private var _stage:MovieClip = container;
    private var _frame:int;
    private var fade:Number = 1.0;
    private var fadeAmount:Number = 0.01;
    private var _timer3:Timer = new Timer(25);
    private var retval:Boolean = false;
    var survive:TextField = new TextField();
    var survivedTime:Number;
    var isRight:Boolean=false
    var isLeft:Boolean=false
    var isUp:Boolean=false
    var isDown:Boolean=false
    var pause:TextField = new TextField();
    var pausedes:TextField = new TextField();


    public function Main()
    {
        _physics = new Physics(container);
        _physics.enable();
        _timer = new Timer(500);
        _timer.addEventListener(TimerEvent.TIMER, timerFunction);
        _timer.start();
        start.addEventListener(MouseEvent.CLICK, buttonClickHandler);
        credits.addEventListener(MouseEvent.CLICK, buttonClickHandler2);
    }


        // the event listeners
        private function update(e:Event):void
        {
            var currentTime:int = getTimer();
            var _ballArray:Array = _physics._ballArray;
            var tempBall1:Ball;
            var i:int;  
            //check if we hit top
            if (((man.x - man.width / 2) <= _physics._minX))
            {
                man.x += 7;
            }
            else if (((man.x + man.width / 2) >= _physics._maxX))
            {

                man.x -= 7;
            }

            for (i = 0; i < _ballArray.length; i++)
            {
            // save a reference to ball
                tempBall1 = _ballArray[i] as Ball;

                if(_physics.hitTestCircle(tempBall1, man))
                    {   

                        man.gotoAndStop(2);
                        retval = true;
                        stage.removeEventListener(KeyboardEvent.KEY_UP, onKeyEvent);
                        stage.removeEventListener(KeyboardEvent.KEY_UP, upKey);
                        stage.removeEventListener(KeyboardEvent.KEY_DOWN, downKey);
                        stage.removeEventListener(Event.ENTER_FRAME, move);
                    }
                if(retval)
                {
                    _physics.disable();
                    _timer2.stop();
                    survivedTime = diff;
                    _timer3.addEventListener(TimerEvent.TIMER, darken);
                    _timer3.start();
                    stage.removeEventListener(Event.ENTER_FRAME, update);

                    _physics._ballArray = [];
                    //trace("you died!");
                    retval = false;

                }
            }


                diff = currentTime*0.001 - startTime*0.001;
                interval_timer.text = String(diff);

        }

        private function darken(e:TimerEvent):void
        {
            fade-= fadeAmount;
            if(fade < 0.0)
            {
                    fade = 0.0;
                    _timer3.removeEventListener(TimerEvent.TIMER, darken);
                    _timer3.stop();
                    endGame();                      
            }
        container.transform.colorTransform = new ColorTransform(fade, fade, fade, 1.0, 0, 0, 0, 0);

        }
        private function downKey(event:KeyboardEvent)
        {
             if(event.keyCode==39)
             {
                isRight=true;
             }
             if(event.keyCode==37)
             {
                isLeft=true;
             }
             if(event.keyCode==38)
             {
             isUp=true
             }
             if(event.keyCode==40)
             {
             isDown=true
             }
        }
        private function upKey(event:KeyboardEvent){
             if(event.keyCode==39){
             isRight=false}
             if(event.keyCode==37){
             isLeft=false}
             if(event.keyCode==38){
             isUp=false}
             if(event.keyCode==40){
             isDown=false}
        }
        private function move(e:Event)
        {
             if(isRight==true)
                 {
                 man.x +=5;
                 }
             if(isLeft==true)
                 {
                 man.x -= 5;
                 }
        }
        private function frame(e:Event):void
        {
            _frame = currentFrame;
            if(_frame == 25)
            {
                startGame();
            }

        }
        private function startGame():void
        {
            _physics._ballArray = [];
            stage.removeEventListener(Event.ENTER_FRAME, frame);
            //stage.removeEventListener(Event.ENTER_FRAME, startGame);
            stage.removeEventListener(Event.ENTER_FRAME, _physics.remove);
            _physics.enable();              

            // enable physics simulation
            _timer2 = new Timer(500);
            _timer2.addEventListener(TimerEvent.TIMER, timerFunction);
            _timer2.start();
            stage.addEventListener(Event.ENTER_FRAME, update);


            interval_timer.y = 18;
            interval_timer.x = 500;
            addChild(interval_timer);
            startTime = getTimer();



        }

        private function endGame()
        {
            var myFormat:TextFormat = new TextFormat();
            myFormat.size = 23;
            survive.defaultTextFormat = myFormat;
            gotoAndStop(26);
            survive.x = 179.45;
            survive.y = 177.90;
            survive.textColor = 0xFFFFFF;
            survive.text = String(survivedTime + " secs");
            addChild(survive);
            stage.addEventListener(Event.ENTER_FRAME, _physics.remove);
            stage.removeEventListener(KeyboardEvent.KEY_UP, onKeyEvent);
            stage.removeEventListener(KeyboardEvent.KEY_UP, upKey);
            stage.removeEventListener(KeyboardEvent.KEY_DOWN, downKey);
            stage.removeEventListener(Event.ENTER_FRAME, move);
            mainmenu.addEventListener(MouseEvent.CLICK, buttonClickHandler5);
            retry.addEventListener(MouseEvent.CLICK, buttonClickHandler6);
            _physics._ballArray = [];
        }

        private function onKeyEvent(e:KeyboardEvent):void
        {
            if (stage.frameRate == 20)
            {
                if (e.keyCode == 80)
                {
                    stage.frameRate = 8;
                    stage.removeEventListener(Event.ENTER_FRAME, update);
                    pauseGame();

                }
            }
            else if (stage.frameRate == 8)
            {
                if (e.keyCode == 80)
                {
                    stage.frameRate = 20;
                    stage.addEventListener(Event.ENTER_FRAME, update);                      
                    unpause();
                }
            }
        }

        private function pauseGame():void
        {
            _physics.disable();
            _timer2.stop();
            stage.addEventListener(KeyboardEvent.KEY_UP, onKeyEvent);
            stage.removeEventListener(KeyboardEvent.KEY_UP, upKey);
            stage.removeEventListener(KeyboardEvent.KEY_DOWN, downKey);
            stage.removeEventListener(Event.ENTER_FRAME, move);
            var myFormat:TextFormat = new TextFormat();
            var myFormat2:TextFormat = new TextFormat();
            myFormat.size = 30;
            myFormat2.size = 15;
            pause.defaultTextFormat = myFormat;
            pausedes.defaultTextFormat = myFormat2;
            pause.x = 239.95;
            pause.y = 165.90;
            pause.textColor = 0x000000;
            pausedes.x = 221.8;
            pausedes.y = 205.45;
            pausedes.width = 130.2;
            pausedes.textColor = 0x000000;
            pause.text = String("Paused");
            pausedes.text = String("Press P to Unpause");
            addChild(pause);
            addChild(pausedes);

        }
        private function unpause():void
        {

            stage.addEventListener(KeyboardEvent.KEY_UP, onKeyEvent);
            stage.addEventListener(KeyboardEvent.KEY_UP, upKey);
            stage.addEventListener(KeyboardEvent.KEY_DOWN, downKey);
            stage.addEventListener(Event.ENTER_FRAME, move);
            _physics.enable();
            _timer2.start();
            removeChild(pause);
            removeChild(pausedes);

        }
        public function timerFunction(e:TimerEvent):void
        {
            _physics.createBalls(1);                
        }
        //start button
        private function buttonClickHandler(event:MouseEvent):void
        {
            gotoAndStop(3);
            ok.addEventListener(MouseEvent.CLICK, buttonClickHandler4);
            _physics.disable();
            _timer.stop();
            _timer.removeEventListener(TimerEvent.TIMER, timerFunction);
            stage.addEventListener(Event.ENTER_FRAME, _physics.remove);
            _physics._ballArray = [];
        }
        //credits button
        private function buttonClickHandler2(event:MouseEvent):void
        {
            gotoAndStop(2);
            stage.addEventListener(Event.ENTER_FRAME, _physics.remove);
            _physics.disable();
            _timer.removeEventListener(TimerEvent.TIMER, timerFunction);
            _timer.stop();
            back.addEventListener(MouseEvent.CLICK, buttonClickHandler3);
        _physics._ballArray = [];

        }
        //back button
        private function buttonClickHandler3(event:MouseEvent):void
        {
            gotoAndStop(1);
            _physics.enable();
            _timer.addEventListener(TimerEvent.TIMER, timerFunction);
            stage.removeEventListener(Event.ENTER_FRAME, _physics.remove);
            _timer.start();
            start.addEventListener(MouseEvent.CLICK, buttonClickHandler);
            credits.addEventListener(MouseEvent.CLICK, buttonClickHandler2);
            _physics._ballArray = [];

        }
        //ok button
        private function buttonClickHandler4(event:MouseEvent):void
        {
            stage.addEventListener(KeyboardEvent.KEY_UP, upKey);
            stage.addEventListener(KeyboardEvent.KEY_DOWN, downKey);
            stage.addEventListener(Event.ENTER_FRAME, move);
            stage.addEventListener(KeyboardEvent.KEY_UP, onKeyEvent);
            gotoAndPlay(4);
            stage.addEventListener(Event.ENTER_FRAME, frame);
            _physics._ballArray = [];

            //stage.addEventListener(Event.ENTER_FRAME, startGame);

        }
        //main menu button
        private function buttonClickHandler5(event:MouseEvent):void
        {
            gotoAndStop(1);
            container.transform.colorTransform = new ColorTransform(1, 1, 1, 1, 0, 0, 0); 
            removeChild(survive);   
            removeChild(interval_timer);    
            _physics.enable();
            _timer.addEventListener(TimerEvent.TIMER, timerFunction);
            stage.removeEventListener(Event.ENTER_FRAME, _physics.remove);
            _timer.start();
            start.addEventListener(MouseEvent.CLICK, buttonClickHandler);
            credits.addEventListener(MouseEvent.CLICK, buttonClickHandler2);
            _physics._ballArray = [];
            fade = 1.0;
            fadeAmount = 0.01;
        }
        //retry button
        private function buttonClickHandler6(event:MouseEvent):void
        {
            container.transform.colorTransform = new ColorTransform(1, 1, 1, 1, 0, 0, 0); 
            removeChild(survive);   
            removeChild(interval_timer);    
            gotoAndPlay(4);
            stage.addEventListener(Event.ENTER_FRAME, frame);
            stage.addEventListener(KeyboardEvent.KEY_UP, upKey);
            stage.addEventListener(KeyboardEvent.KEY_DOWN, downKey);
            stage.addEventListener(Event.ENTER_FRAME, move);
            stage.addEventListener(KeyboardEvent.KEY_UP, onKeyEvent);
            _physics._ballArray = [];
            fade = 1.0;
            fadeAmount = 0.01;
            man.x = 286.65;
            man.y = 391.85;
            man.gotoAndStop(1);

        }


}

}

这是我用来让男人移动的文件。我改变代码在哪里使游戏工作，所以男人在“Go！”之后移动，你不必点击屏幕。

我的另一个问题是：当你按“P”时，你可以暂停游戏。但是，您可能会在再次按“P”后取消暂停游戏时注意到，计时器将暂停您暂停的秒数。此代码也是计时器的代码。我在代码中做了哪些更改以使计时器正常运行，这意味着在取消暂停游戏后，它不会跳过暂停的秒数，而是从它停止的位置继续。

Answer 1

这个问题的评论主题太长了。在调用buttonClickHandler4之后，您的键盘事件应该正常运行。

设置调试点或跟踪语句，以查看是否正在调用buttonClickHandler4。添加相同内容以确保调用downKey和move。这应该缩小问题范围。

Answer 2

编辑：我使用此链接找出了问题：http://www.trainingtutorials101.com/2010/10/keyboard-events-wont-work-unless-user.html

我不得不使用命令stage.focus = this将舞台聚焦在我的movieclip man上，这样它就可以在没有鼠标点击屏幕的情况下收听键盘事件。

为了删除该男子周围的黄色矩形，我使用了命令stage.stageFocusRect = false。

感谢@dhc和@Vesper的所有帮助。

Movieclip不会自行移动

2 个答案: