XNA 瓦片地图瓦片集

Question

我正在制作一个 2d 横向卷轴游戏，我正在尝试使用 2 维或所谓的瓷砖集。我的朋友给了我一些他一直用于他的游戏的代码，但他的代码只支持一维。

   public void DrawMap(Texture2D tilesheet, SpriteBatch spriteBatch)
    {
        for (int x = 0; x < map.GetLength(1); x++)
        {
            for (int y = 0; y < map.GetLength(0); y++)
            {
                spriteBatch.Draw(tilesheet, new Vector2((x * 64) , (y * 64)), new Rectangle(map[y, x] * 64, 0, 64, 64), Color.White);
            }
        }
    }

这就是问题出现的地方，因为它是一个小组项目，我们从图形设计师那里收到图形，并且我们有太多的图块（64x64 大小）无法放入 xna 支持的一行纹理中（4096 像素 i思考）。我几乎不明白我朋友给我的代码，这可能就是问题所在。如果有人知道如何使绘制方法支持 2 维，以便我可以使用图块集，那么尺寸（例如 512x512）而不是 64x4992（我当前的图块集所在）。

    public Level()
    {
        map = new int[14, 50]
        {{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
        {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
        {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
        {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
        {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
        {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,17,18,19,20,21,22,23,24,17,18,19,20,21,22,23,24,2},
        {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,25,26,27,28,29,30,31,32,25,26,27,28,29,30,31,32,2},
        {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,33,34,35,36,37,38,39,40,33,34,35,36,37,38,39,40,2},
        {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,41,42,43,44,45,46,47,48,41,42,43,44,45,46,47,48,2},
        {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,5,0,0,0,0,49,50,51,52,53,54,55,56,49,50,51,52,53,54,55,56,2},
        {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,57,58,59,60,61,62,63,64,57,58,59,60,61,62,63,64,2},
        {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,10,11,0,0,0,0,0,0,0,0,0,65,66,67,68,69,70,71,72,65,66,67,68,69,70,71,72,2},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,6,7,2,12,13,3,3,3,3,3,3,3,3,3,73,74,75,76,77,78,79,80,73,74,75,76,77,78,79,80,2},
        {2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2}};
        overlay = new int[14, 50];
        background = new int[14,50];
    }
    public void DrawMap(Texture2D tilesheet, SpriteBatch spriteBatch)
    {
        for (int x = 0; x < map.GetLength(1); x++)
        {
            for (int y = 0; y < map.GetLength(0); y++)
            {
                //http://imgur.com/1r9VUUN
                spriteBatch.Draw(tilesheet, new Vector2((x * 64), (y * 64)), new Rectangle((map[x, y] % 8) * 64, (map[x, y] / 8) * 64, 64, 64), Color.White);
            }
        }
    }

所以我在 Tiled 中编辑我的地图，我意识到 tiled 计数为 1-2-3-4-5，而不是 0-1-2-3-4-5。因此，如果您查看我的图块集（在绘图方法 imgur 链接中注释掉），您会看到我在第一个图块之前有一个空白区域，但这意味着每个图块在 xna 中的位置值 + 1，这可能就是为什么我有绘制它时出现问题，因为我尝试绘制的图块在图块集中不存在。

Answer 1

由于我不确切知道您的平铺地图是什么样子，我将简单地给出一个逐步解释的示例：

首先假设我们有以下 Tile Map Sheet

此地图为 8x3，假设每个图块为 64X64 像素，要引用其中一个图块，您可以在 MapSheet 中使用其坐标 (x,y)（例如，最后一个图块的坐标为 (7,2) -0 基于索引-)，或者更巧妙的是，您可以通过从第一个图块开始计数来简单地将其称为一个数字（例如，前一个图块 (7,2) 表示图块 23）

第二定义你的地图矩阵

 map = new int[,]
 {                            
     {8,8,1,8,8,1},
     {1,8,0,8,8,8},
     {1,8,8,8,8,8},
     {1,7,8,8,8,8},
     {1,8,0,23,4,4},
     {1,8,8,1,8,8}
 };

上述Matrix中的每个元素都是TileMap中瓦片的坐标，

第三绘图部分，

public void DrawMap(Texture2D tilesheet, SpriteBatch spriteBatch)
{
    for (int x = 0; x < map.GetLength(1); x++)
    {
        for (int y = 0; y < map.GetLength(0); y++)
        {
            spriteBatch.Draw(tilesheet, new Vector2((x * 64) , (y * 64)), new Rectangle((map[x,y]%8) * 64, (map[x,y]/8)*64, 64, 64), Color.White);
        }
    }
}

上面代码中new Rectangle((map[x,y]%8) * 64, (map[x,y]/8)*64, 64, 64),代表了所谓的SourceRectangle，那个Rect是用来定位TileMap中对应的瓦片Rectangle