Question

我的XNA项目遇到了一些困难;当主角移动到左角或右角时（分别转到下一级或上一级），我想更改级别。但是，由于我似乎无法理解的问题，角色无法回到前一级别（请查看if player.Position.X == 1200语句 - 这种情况永远不会发生）。向前走似乎工作得很好。我有什么想法可能做错了吗？

    private void UpdateLevelOne()
    {
        if (player.Position.X == 0)
        {
            showLevelOne = false;
            showLevelTwo = true;
            player.Position = new Vector2(1200, ground - player.Size.Height);
            levelTwo.backgroundVector = new Vector2(-750,0);
        }
    }
    private void UpdateLevelTwo()
    {
        if (player.Position.X <= 250)
        {
            showLevelTwo = false;
            showLevelOne = true;

            player.Position = new Vector2(1200, ground - player.Size.Height);
            levelOne.backgroundVector = new Vector2(-750, 0);
        }
        if (player.Position.X == 1200)
        {
            showLevelTwo = false;
            showLevelOne = true;
            player.Position = new Vector2(10, ground - player.Size.Height);
        }
    }

Answer 1

也许你应该试试

if (player.Position.X > 1200) 
    //Do Something

XNA：向后移动（如果语句永远不会发生）

1 个答案: