AS3:在游戏中跑过积木

Question

我正在用flash ActionScript3制作一个游戏，已经基本完成了，但我有一些问题。

想想看，在这个游戏中，你是一个角色(目前是一个黑色的方块)，你必须通过跳到正在下降的积木上来获得尽可能高的高度。现在我能做的就是跳跃，与方块(左-右)发生碰撞，然后跳到方块上。

当两个区块完全相邻时(区块A紧邻区块B)，然后我跳上区块A，然后我想跑到区块B(只是跑而不跳)，我得到了一些非常奇怪的东西，我不能在区块上行走。

以下是问题所在的代码：

package Classes

{导入flash.events.*；导入flash.display.MovieClip；导入flash.display.Stage；导入flash.ui.Keyboard；导入Classes.KeyObject；

public class Player extends MovieClip
{
    var isJumping:Boolean = false;
    var jumpPower:int = 0;
    var ground:int;
    var stageRef:Stage;
    var key:KeyObject;
    var isDead:Boolean = false;
    var allBlocks:Array;
    var blockX:int;
    var blockY:int;
    var blockWidth:int;
    var blockHeight:int;
    var steps:int = 10;
    var upPressed:Boolean = false;
    public function Player(stageReff:Stage,allBlocks:Array)
    {

        stageRef = stageReff;
        key = new KeyObject(stageRef);
        this.allBlocks = allBlocks;
        ground = stageRef.stageHeight;
        addEventListener(Event.ENTER_FRAME,update);
        //addEventListener(KeyboardEvent.KEY_UP, keyReleased);
    }

    function isHit()
    {
        for (var j = 0; j < allBlocks.length; j++)
        {
            if (this.hitTestObject(allBlocks[j]) && allBlocks[j] != isOnTopOf())
            {
                blockX = allBlocks[j].x;
                blockY = allBlocks[j].y;
                blockWidth = allBlocks[j].width;
                blockHeight = allBlocks[j].height;
                return true;
            }
        }
        return false;
    }

    function isHitTop()
    {
        for (var j = 0; j < allBlocks.length; j++)
        {
            if (this.PlayerBottom.hitTestObject(allBlocks[j].hitBoxTop))
            {
                jumpPower = 0;
                isJumping = false;
                this.y = allBlocks[j].y - allBlocks[j].height;
                return true;
            }
        }
        return false;
    }

    function isHitBottom()
    {
        for (var j = 0; j<allBlocks.length; j++)
        {
            if (this.hitTestObject(allBlocks[j].hitBoxBottom))
            {
                if (isJumping)
                {
                    this.y = allBlocks[j].y + this.height;
                    jumpPower=0;
                    isJumping = false;
                    isDead = false;
                    trace(isDead);
                }


                else
                {

                    isDead = true;
                    trace(isDead);
                }
            }
        }
    }

    function isOnTopOf()
    {
        for (var j = 0; j < allBlocks.length; j++)
        {
            if (this.PlayerBottom.hitTestObject(allBlocks[j].hitBoxTop))
            {
                trace("is WEL onTopOf");
                return allBlocks[j];
            }
        }
        trace("is NIET onTopOf");
        return null;
    }


    function update(evt:Event):void
    {
        if (!isDead)
        {
            isHitTop();
            isHitBottom();
            if (key.isDown(Keyboard.UP))
            {
                //Voorkomen dat hij 2x springt
                if (! isJumping)
                {
                    jumpPower = 12;
                    isJumping = true;
                }
            }

            if (key.isDown(Keyboard.LEFT))
            {
                if (this.x > stageRef.stageWidth - stageRef.stageWidth)
                {
                    this.x -=  steps;
                    if (isHit() == true)
                    {
                        this.x = blockX + blockWidth + 1;
                        //trace("is gehit maar staat er niet op");
                    }

                }
            }
            else if (key.isDown(Keyboard.RIGHT))
            {
                if (this.x < stageRef.stageWidth - this.width)
                {
                    this.x +=  steps;
                    if (isHit() == true)
                    {
                        this.x = blockX - this.width - 1;
                        this.y = blockY;
                    }
                }
            }


            if (isJumping)
            {
                this.y -=  jumpPower;
                jumpPower -=  2;
                isHitTop();
                isHitBottom();
            }


            if (! isJumping && ! isHitTop())
            {
                this.y +=  7;
            }


            if (this.y > ground)
            {
                this.y = ground;
                isJumping = false;
            }
        }
        else
        {
            removeEventListener(Event.ENTER_FRAME,update);
        }
    }
}
}

Answer 1

问题出在这里：

if (isHit() == true)
{
   this.x = blockX - this.width - 1;
   this.y = blockY;
}

你在街区跳跃。然后您按向右箭头转到右侧(您将看到这行else if (key.isDown(Keyboard.RIGHT)))。在这段代码中，你可以检查是否有任何冲突。是的，因为你一直待在这条街上。所以你的角色会得到这个坐标：

this.x = blockX - this.width - 1；this.y = blockY；

但是blockX，blockY和this.width是固定的。所以你的角色是固定的。

Answer 2

我已经解决了问题。它在函数isHit()中。我还添加了一些新功能，比如菜单、分数和twitter feed。