AS3平台成形器坡度检测

Question

我正在AS3制作平台成型器的过程中。然而，我正在努力的一件事是如何管理斜率检测。最好是类似于像这样的游戏，类似花式裤子冒险，但id真的不喜欢使用外部的东西，如Box2D或CDK，因为这两者都让我非常困惑，而id通常更喜欢只是没有一个。我所有的尝试都存在这样的问题，即我可以使用它来处理一些斜坡，但不是所有的（例如，角色管理一个斜坡，但通过另一个斜坡下降），然后当我改变它以适应另一个斜坡时，它不适合第一个（例如，玩家管理第二斜率，但反弹并在第二下疯狂...... 因此，任何帮助，将不胜感激...... 感谢。 代码如下。

//var setup 
var leftPressed: Boolean = false; 
var rightPressed: Boolean = false; 
var upPressed: Boolean = false; 
var downPressed: Boolean = false; 
var leftBumping: Boolean = false; 
var rightBumping: Boolean = false; 
var upBumping: Boolean = false; 
var downBumping: Boolean = false; 
var lowerleftBumping: Boolean = false; 
var lowerrightBumping: Boolean = false; 
var leftBumpPoint: Point = new Point(-30, -87); 
var rightBumpPoint: Point = new Point(30, -87); 
var lowerleftBumpPoint: Point = new Point(-32, -2); 
var lowerrightBumpPoint: Point = new Point(32, -2); 
var upBumpPoint: Point = new Point(0, -174); 
var downBumpPoint: Point = new Point(0, 0); 
var scrollX: Number = -4; 
var scrollY: Number = -68; 
var ySpeed: Number = 0; 
var xSpeed: Number = 0; 
var speedConstant: int = 5; 
var maxSpeedConstant: Number = 30; 
var frictionConstant: Number = 0.9; 
var gravityConstant: Number = 2; 
var jumpConstant: Number = -45; 
//game 
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler); 
stage.addEventListener(KeyboardEvent.KEY_UP, keyUpHandler); 
stage.addEventListener(Event.ENTER_FRAME, loop); 
function keyDownHandler(e: KeyboardEvent): void { 
    if (e.keyCode == Keyboard.LEFT) { 
     leftPressed = true; 

    } else if (e.keyCode == Keyboard.RIGHT) { 
     rightPressed = true; 

    } else if (e.keyCode == Keyboard.UP) { 
     upPressed = true; 

    } else if (e.keyCode == Keyboard.DOWN) { 
     downPressed = true; 
    } 
} 

function keyUpHandler(e: KeyboardEvent): void { 
    if (e.keyCode == Keyboard.LEFT) { 
     leftPressed = false; 

    } else if (e.keyCode == Keyboard.RIGHT) { 
     rightPressed = false; 

    } else if (e.keyCode == Keyboard.UP) { 
     upPressed = false; 

    } else if (e.keyCode == Keyboard.DOWN) { 
     downPressed = false; 
    } 
} 

function loop(e: Event): void { 
    if (back.hitTestPoint(player.x + leftBumpPoint.x, player.y + leftBumpPoint.y, true)) { 
     trace("leftBumping"); 
     leftBumping = true; 
    } else { 
     leftBumping = false; 
    } 

    if (back.hitTestPoint(player.x + rightBumpPoint.x, player.y + rightBumpPoint.y, true)) { 
     trace("rightBumping"); 
     rightBumping = true; 
    } else { 
     rightBumping = false; 
    } 

    if (back.hitTestPoint(player.x + upBumpPoint.x, player.y + upBumpPoint.y, true)) { 
     trace("upBumping"); 
     upBumping = true; 
    } else { 
     upBumping = false; 
    } 

    if (back.hitTestPoint(player.x + downBumpPoint.x, player.y + downBumpPoint.y, true)) { 
     trace("downBumping"); 
     downBumping = true; 
    } else { 
     downBumping = false; 
    } 
      if (back.hitTestPoint(player.x + lowerleftBumpPoint.x, player.y + lowerleftBumpPoint.y, true)) { 
      trace("lowerrightBumping"); 
      lowerleftBumping = true; 
     } else { 
      lowerleftBumping = false; 
     } 
     if (back.hitTestPoint(player.x + lowerrightBumpPoint.x, player.y + lowerrightBumpPoint.y, true)) { 
      trace("lowerrightBumping"); 
      lowerrightBumping = true; 
     } else { 
      lowerrightBumping = false; 
     } 
    if (leftPressed) { 
     xSpeed -= speedConstant; 

    } else if (rightPressed) { 
     xSpeed += speedConstant; 

    } 
    if (leftBumping) { 
     if (xSpeed < 0) { 
      xSpeed *= -0.5; 
     } 
    } 

    if (rightBumping) { 
     if (xSpeed > 0) { 
      xSpeed *= -0.5; 
     } 
    } 

    if (upBumping) { 
     if (ySpeed < 0) { 
      ySpeed *= -0.5; 
     } 
    } 

    if (downBumping) { 
     if (ySpeed > 0) { 
      ySpeed = 0; //set the y speed to zero 
     } 
     if (upPressed) { 
      ySpeed = jumpConstant; 
     } 
    } else { 
     ySpeed += gravityConstant; 
    } 
    if (xSpeed > maxSpeedConstant) { //moving right 
     xSpeed = maxSpeedConstant; 
    } else if (xSpeed < (maxSpeedConstant * -1)) { //moving left 
     xSpeed = (maxSpeedConstant * -1); 
    } 
    xSpeed *= frictionConstant; 
    ySpeed *= frictionConstant; 
    if (Math.abs(xSpeed) < 0.5) { 
     xSpeed = 0; 
    } 

    scrollX -= xSpeed; 
    scrollY -= ySpeed; 

    back.x = scrollX; 
    back.y = scrollY; 
    if (scrollY < -770) { 
     scrollX = -4; 
     scrollY = -68; 
     ySpeed=0 
     xSpeed=0 
    } 
} 

Answer 1

如果我被迫不使用我生命中的爱（Box2D），那么我想我会玩hitTestObject，并对我的任何斜坡的角度做一些数学运算，以产生他们开始移动的速度。有点宽泛，我认为这里的社区更适合r具体问题而不是架构头脑风暴。