Adobe Animate 碰撞问题

Question

我正在使用AS3在Adobe Animate中制作游戏。当我的方块碰到左边的障碍物时，我希望能够停止它，而不是让它穿过去。我的方块实例名称为“box”，障碍物的实例名称为“left”和“right”。

这是我的舞台图片：舞台图片 以下是我目前用于移动方块的代码：

var upPressed:Boolean = false;
var downPressed:Boolean = false;
var leftPressed:Boolean = false;
var rightPressed:Boolean = false;

box.addEventListener(Event.ENTER_FRAME, fl_MoveInDirectionOfKey);
stage.addEventListener(KeyboardEvent.KEY_DOWN, fl_SetKeyPressed);
stage.addEventListener(KeyboardEvent.KEY_UP, fl_UnsetKeyPressed);

function fl_MoveInDirectionOfKey(event:Event)
{
  if (leftPressed)
  {
     box.x -= 5;
  }

  if (rightPressed)
  {
     box.x += 5;
  } 
}

function fl_SetKeyPressed(event:KeyboardEvent):void
{   
  switch (event.keyCode)
  {
    case Keyboard.LEFT:
    {
        leftPressed = true;
        break;
    }
    case Keyboard.RIGHT:
    {
        rightPressed = true;
        break;
    }
  }
}

function fl_UnsetKeyPressed(event:KeyboardEvent):void
{
 switch (event.keyCode)
 {  
    case Keyboard.LEFT:
    {
        leftPressed = false;
        break;
    }
    case Keyboard.RIGHT:
    {
        rightPressed = false;
        break;
    }
  }
}

非常感谢您！

- Hamza

---

http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/display/DisplayObject.html#hitTestObject() - Organis

Answer 1

你需要类似于

这样的东西。

if (box.hitTestObject(left)) box.x = left.x + left.width;
if (box.hitTestObject(right)) box.x = right.x  - box.width;

添加到fl_MoveInDirectionOfKey函数的末尾

- Oleg Knaus