将鼠标悬停在 DPAD 上有时会使角色在一个方向上无限移动

Question

我的游戏中有一个 DPAD，当玩家按住左边的 DPAD 时，如果他将他的触摸移动到向上的 DPAD 然后我们走，玩家继续向左移动。

如果你按住 a 方向也有效，假设向上继续按住但离开向上 DPAD，有时你可能会继续朝那个方向前进。

我试图阻止的事情：

方向点击时，触发检查您是否在运动，或已经转向不同的方向
设置碰撞强制这些变量变为假；又名，你撞到了东西，inMotion = false，等等

这就是我能想到的所有解决方法。

此外，我在检查中使用了很多变量，将我的函数更改为 return 布尔值更好，还是这样好？只是好奇。

游戏Class

package 
{
    import flash.display.MovieClip;
    import flash.utils.Timer;
    import flash.events.TimerEvent;

    public class Game extends MovieClip
    {
        public var area1:Boolean = true;
        public var area2:Boolean = false;
        public var area3:Boolean = false;

        public var player1:Boolean = true;
        public var player2:Boolean = false;

        public var upWalkspeed:Number = -5;
        public var downWalkspeed:Number = 5;
        public var leftWalkspeed:Number = -5;
        public var rightWalkspeed:Number = 5;

        public var inMotion:Boolean = false;
        public var goingUp:Boolean = false;
        public var goingDown:Boolean = false;
        public var goingLeft:Boolean = false;
        public var goingRight:Boolean = false;

        public var playerPosKeeper_mc:MovieClip = new mc_PlayerPosKeeper();

        public var up_dpad:MovieClip = new dpad_Up();
        public var down_dpad:MovieClip = new dpad_Down();
        public var left_dpad:MovieClip = new dpad_Left();
        public var right_dpad:MovieClip = new dpad_Right();
        public var menu_dpad:MovieClip = new dpad_Menu();
        public var run_dpad:MovieClip = new dpad_Menu();

        public var barrierRoof1_game:MovieClip = new game_BarrierRoof();
        public var barrierRoof2_game:MovieClip = new game_BarrierRoof();
        public var barrierSide1_game:MovieClip = new game_BarrierSide();
        public var barrierSide2_game:MovieClip = new game_BarrierSide();

        public var StageCollisions:Array = new Array(barrierRoof1_game, barrierRoof2_game, barrierSide1_game, barrierSide2_game);
        // fix MC goes after not before ||| public var player1States:Array = new Array(mc_P1D1,mc_P1D2,"mc_P1L1","mc_P1L2","mc_P1R1","mc_P1R2","mc_P1U1","mc_P1U2");

        public function Game()
        {
            trace("SUCCESS | Constructed Game Class");

            var aMove:Movement = new Movement(this);
            addChild(aMove);

        }
    }
}

运动Class

package 
{
    import flash.display.Stage;
    import flash.display.MovieClip;
    import flash.events.Event;
    import flash.events.TouchEvent;
    import flash.net.dns.AAAARecord;
    import flash.ui.Multitouch;
    import flash.ui.MultitouchInputMode;


    public class Movement extends MovieClip
    {
        public function Movement(main:Game)
        {
            trace("SUCCESS | Constructed Movement Class");

            addChild(main.playerPosKeeper_mc);
            main.playerPosKeeper_mc.x = 384;
            main.playerPosKeeper_mc.y = 46;

            addChild(main.up_dpad);
            main.up_dpad.x = 55;
            main.up_dpad.y = 336;

            addChild(main.down_dpad);
            main.down_dpad.x = 57;
            main.down_dpad.y = 432;

            addChild(main.left_dpad);
            main.left_dpad.x = 19;
            main.left_dpad.y = 372;

            addChild(main.right_dpad);
            main.right_dpad.x = 118;
            main.right_dpad.y = 372;

            addChild(main.menu_dpad);
            main.menu_dpad.x = 61;
            main.menu_dpad.y = 377;

            addChild(main.run_dpad);
            main.run_dpad.x = 684;
            main.run_dpad.y = 369;

            addChild(main.barrierRoof1_game);
            main.barrierRoof1_game.x = 0;
            main.barrierRoof1_game.y = 0;

            addChild(main.barrierRoof2_game);
            main.barrierRoof2_game.x = 0;
            main.barrierRoof2_game.y = 470;

            addChild(main.barrierSide1_game);
            main.barrierSide1_game.x = 0;
            main.barrierSide1_game.y = 0;

            addChild(main.barrierSide2_game);
            main.barrierSide2_game.x = 790;
            main.barrierSide2_game.y = 0;

            Multitouch.inputMode = MultitouchInputMode.TOUCH_POINT;

            main.up_dpad.addEventListener(TouchEvent.TOUCH_BEGIN, upBeginInput);
            main.down_dpad.addEventListener(TouchEvent.TOUCH_BEGIN, downBeginInput);
            main.left_dpad.addEventListener(TouchEvent.TOUCH_BEGIN, leftBeginInput);
            main.right_dpad.addEventListener(TouchEvent.TOUCH_BEGIN, rightBeginInput);

            // Maybe add diagnol direction buttons in the future?;


            //  !!  NOTE  !!
            //  Use some sort of value, maybe a return or a variable to sync up animations
            // to if the player is moving, in the future

            // Movement Directions

            // Start of UP Movement
            function upBeginInput(e:TouchEvent):void
            {
                main.inMotion = true;
                main.goingUp = true;
                main.goingDown = false;
                main.goingLeft = false;
                main.goingRight = false;
                main.up_dpad.addEventListener(TouchEvent.TOUCH_END, upEndInput);
                addEventListener(Event.ENTER_FRAME,sendUpMovement);
            }
            function upEndInput(e:TouchEvent):void
            {
                main.inMotion = false;
                main.goingUp = false;
                main.up_dpad.removeEventListener(TouchEvent.TOUCH_END, upEndInput);
                removeEventListener(Event.ENTER_FRAME,sendUpMovement);
            }
            function sendUpMovement():void
            {
                if (main.inMotion == true && main.goingUp == true && main.goingDown == false && main.goingLeft == false && main.goingRight == false)
                {
                    movePlayer(0, main.upWalkspeed);
                }
                else
                {
                }
            }
            // End of UP Movement



            // Start of DOWN Movement
            function downBeginInput(e:TouchEvent):void
            {
                main.inMotion = true;
                main.goingUp = false;
                main.goingDown = true;
                main.goingLeft = false;
                main.goingRight = false;
                main.down_dpad.addEventListener(TouchEvent.TOUCH_END, downEndInput);
                addEventListener(Event.ENTER_FRAME,sendDownMovement);
            }
            function downEndInput(e:TouchEvent):void
            {
                main.inMotion = false;
                main.goingDown = false;
                main.down_dpad.removeEventListener(TouchEvent.TOUCH_END, downEndInput);
                removeEventListener(Event.ENTER_FRAME,sendDownMovement);
            }
            function sendDownMovement():void
            {
                if (main.inMotion == true && main.goingUp == false && main.goingDown == true && main.goingLeft == false && main.goingRight == false)
                {
                    movePlayer(0, main.downWalkspeed);
                }
                else
                {
                }
            }
            // End of DOWN Movement



            // Start of LEFT Movement
            function leftBeginInput(e:TouchEvent):void
            {
                main.inMotion = true;
                main.goingUp = false;
                main.goingDown = false;
                main.goingLeft = true;
                main.goingRight = false;
                main.left_dpad.addEventListener(TouchEvent.TOUCH_END, leftEndInput);
                addEventListener(Event.ENTER_FRAME,sendLeftMovement);
            }
            function leftEndInput(e:TouchEvent):void
            {
                main.inMotion = false;
                main.goingLeft = false;
                main.left_dpad.removeEventListener(TouchEvent.TOUCH_END, leftEndInput);
                removeEventListener(Event.ENTER_FRAME,sendLeftMovement);
            }
            function sendLeftMovement():void
            {
                if (main.inMotion == true && main.goingUp == false && main.goingDown == false && main.goingLeft == true && main.goingRight == false)
                {
                    movePlayer(main.leftWalkspeed, 0);
                }
                else
                {
                }
            }
            // End of LEFT Movement



            // Start of RIGHT Movement
            function rightBeginInput(e:TouchEvent):void
            {
                main.inMotion = true;
                main.goingUp = false;
                main.goingDown = false;
                main.goingLeft = false;
                main.goingRight = true;
                main.right_dpad.addEventListener(TouchEvent.TOUCH_END, rightEndInput);
                addEventListener(Event.ENTER_FRAME,sendRightMovement);
            }
            function rightEndInput(e:TouchEvent):void
            {
                main.inMotion = false;
                main.goingRight = false;
                main.right_dpad.removeEventListener(TouchEvent.TOUCH_END, rightEndInput);
                removeEventListener(Event.ENTER_FRAME,sendRightMovement);
            }
            function sendRightMovement():void
            {
                if (main.inMotion == true && main.goingUp == false && main.goingDown == false && main.goingLeft == false && main.goingRight == true)
                {
                    movePlayer(main.rightWalkspeed, 0);
                }
                else
                {
                }
            }
            // End of RIGHT Movement


            function movePlayer(movementX:Number, movementY:Number):void
            {
                var originalX:Number = main.playerPosKeeper_mc.x;
                var originalY:Number = main.playerPosKeeper_mc.y;
                main.playerPosKeeper_mc.x +=  movementX;
                if (checkCollision())
                {
                    main.playerPosKeeper_mc.x = originalX;
                }
                main.playerPosKeeper_mc.y +=  movementY;
                if (checkCollision())
                {
                    main.playerPosKeeper_mc.y = originalY;
                }
            }

            function checkCollision():Boolean
            {
                for each (var StageCollisions:MovieClip in main.StageCollisions)
                {
                    if (main.playerPosKeeper_mc.hitTestObject(StageCollisions))
                    {
                        return true;
                        main.inMotion = false;
                        main.goingUp = false;
                        main.goingDown = false;
                        main.goingLeft = false;
                        main.goingRight = false;
                    }
                }
                return false;
            }
        }
    }
}

Answer 1

在开始调试行为之前，您需要了解什么是算法方法。您有 4 段相似的代码，它们在细节上有所不同，使您的整个脚本太长且难以阅读且难以管理。指南如下：

var isMoving:Boolean;
var Direction:Point = new Point;
var Buttons:Array = [Up, Down, Left, Right];

// Subscribe all buttons for the same handlers and behaviors.
for each (var aButton:InteractiveObject in Buttons)
{
    aButton.addEventListener(MouseEvent.MOUSE_DOWN, onDown);
    aButton.addEventListener(MouseEvent.MOUSE_OUT, onUp);
    aButton.addEventListener(MouseEvent.MOUSE_UP, onUp);
}

function onDown(e:MouseEvent):void
{
    // Figure which button was pressed.
    switch (e.currentTarget)
    {
        case Up:
            Direction.x = 0;
            Direction.y = -1;
            break;

        case Down:
            Direction.x = 0;
            Direction.y = 1;
            break;

        case Left:
            Direction.x = -1;
            Direction.y = 0;
            break;

        case Up:
            Direction.x = 1;
            Direction.y = 0;
            break;
    }

    // Now start moving Hero into the Direction.
    if (!isMoving)
    {
        isMoving = true;
        addEventListener(Event.ENTER_FRAME, onFrame);
    }
}

function onFrame(e:Event):void
{
    Hero.x += Direction.x;
    Hero.y += Direction.y;
}

function onUp(e:MouseEvent):void
{
    // If any of buttons is released or mouse out, stop moving Hero.
    removeEventListener(Event.ENTER_FRAME, onFrame);

    Direction.x = 0;
    Direction.y = 0;

    isMoving = false;
}

如您所见，算法方法的美妙之处在于您需要以不同方式处理仅需要以不同方式处理的事情，在示例中（这与您要创建的非常相似）它是设置移动方向的块。所有按钮的其余代码都相同，这就是整个脚本简短易读、易于理解和管理的原因。

将鼠标悬停在 DPAD 上有时会使角色在一个方向上无限移动

Hovering off DPAD sometimes makes character move infinitely in one direction

flash

actionscript

cs3

actionscript-3