Question

我正在制作垂直平台游戏。我放置平台的方式是通过列表：



      public void LoadPlatforms(ContentManager content, Mechanic_Levels mech, Clide clide)
    {
        platforms.Add(new Entity_Platform());
        platforms.Add(new Entity_Platform());
        platforms.Add(new Entity_Platform());
        platforms.Add(new Entity_Platform());
        platforms.Add(new Entity_Platform());
        platforms.Add(new Entity_Platform());
        platforms.Add(new Entity_Platform());
        platforms.Add(new Entity_Platform());
        platforms.Add(new Entity_Platform());


       // factory.Add(new Entity_Factory());

        foreach (Entity_Platform platform in platforms)
        {
            platform.position = new Vector2(rand.Next(20, 280), rand.Next(20, 580));
            platform.currentlevel = rand.Next(12);
            platform.LoadPlatform(content);
           }
        }

public void LoadPlatforms(ContentManager content, Mechanic_Levels mech, Clide clide) { platforms.Add(new Entity_Platform()); platforms.Add(new Entity_Platform()); platforms.Add(new Entity_Platform()); platforms.Add(new Entity_Platform()); platforms.Add(new Entity_Platform()); platforms.Add(new Entity_Platform()); platforms.Add(new Entity_Platform()); platforms.Add(new Entity_Platform()); platforms.Add(new Entity_Platform()); // factory.Add(new Entity_Factory()); foreach (Entity_Platform platform in platforms) { platform.position = new Vector2(rand.Next(20, 280), rand.Next(20, 580)); platform.currentlevel = rand.Next(12); platform.LoadPlatform(content); } } 如果我想随机放置平台，这是有效的，但我如何设置它，以便根据当前级别平台重新定位自己？我知道这可能意味着我不能使用列表。

Answer 1

我不确定我是否能得到100分，但您可以通过提供比较方法（{/ p>）对Entity_Platform内的List<Entity_Platform>进行排序

private static int ComparePlatforms(Entity_Platform x, Entity_Platform y)
{
        //compare your platforms according to chosen critieria
        //should return 1 if x > y, 0 if x == y, and -1 if x < y
}

之后你可以使用

platforms.Sort(ComparePlatforms);

有关MSDN示例，请参阅here。

Answer 2

我想也许一些答案（而不是评论）是恰当的。我想你要问的是如何根据预先设计为每个级别加载一组平台。

保持当前的LoadPlatforms方法，我会添加另一种方法来获取基于该级别的平台。例如：

public List<Entity_Platform> GetPlatformsForLevel(int level)
{
    //for this example I will hard-code the platforms, you can pull them from another source if you wish

    List<Entity_Platform> platforms = new List<Entity_Platform>();

    switch(level)
    {
        case 1:
        {
            platforms.Add(new Entity_Platform() { currentLevel = level, position = new Vector2(100, 50) });
            platforms.Add(new Entity_Platform() { currentLevel = level, position = new Vector2(200, 100) });
            platforms.Add(new Entity_Platform() { currentLevel = level, position = new Vector2(300, 75) });
        }
        break;
        case 2:
        {
            platforms.Add(new Entity_Platform() { currentLevel = level, position = new Vector2(80, 20) });
            platforms.Add(new Entity_Platform() { currentLevel = level, position = new Vector2(160, 200) });
            platforms.Add(new Entity_Platform() { currentLevel = level, position = new Vector2(250, 50) });
        }
        break;
    }

    return platforms;
}

然后你可以在LoadPlatforms方法中调用它，如下所示：

public void LoadPlatforms(ContentManager content, Mechanic_Levels mech, Clide clide)
{
    int currentLevel = 1;//you need to track the current level somewhere

    List<Entity_Platform> platforms = GetPlatformsForLevel(currentLevel);

    foreach (Entity_Platform platform in platforms)
    {
        platform.LoadPlatform(content);
    }
}

XNA：实体在列表中的位置

2 个答案: