MapEditor 导出为 JSON - 对象已加密？

Question

我已经使用 MapEditor 来选择使用我制作的特定 TileMap 来创建地图。我的问题是：

当通过 JSON 导出创建的地图时，通常大多数地图都显示为它们的图块 ID，如下面的代码片段所示。

{
  "data":[1, 2, 1, 2, 3, 1, 3, 1, 2, 2, 3, 3, 4, 4, 4, 1], <------ TIle Id's
  "height":4,
  "name":"ground",
  "opacity":1,
  "properties":
     {
      "tileLayerProp":"1"
     },
  "type":"tilelayer",
  "visible":true,
  "width":4,
  "x":0,
  "y":0
}

然而，当我在我看到的相同字段中检查自己导出的 JSON 地图时，

 {
         "compression":"zlib",
         "data":"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",
         "encoding":"base64",
         "height":100,
         "name":"solids",
         "opacity":1,
         "type":"tilelayer",
         "visible":true,
         "width":100,
         "x":0,
         "y":0
        },

这两个都是真实样本，第一个来自他们的文档，第二个来自我的原始导出。如您所见，他们的 'data' 字段与我的不同，因为他们的字段是 JSON 数组，因此我相信这个函数，

public static void load(String path) throws Exception 
    {
        JSONParser parser = new JSONParser();
        Object obj = parser.parse(new FileReader(path));
        JSONObject jObj = (JSONObject) obj;

        JSONArray layers = (JSONArray) jObj.get("layers");
        int amount = layers.size();

        for (int i = 0; i < amount; i++) 
        {

            JSONObject layer = (JSONObject) layers.get(i);
            String type = (String) layer.get("name");

            if (type.equals("solids")) 
            {
                WIDTH = (int) ((long)layer.get("width"));
                HEIGHT = (int) ((long)layer.get("height"));
                solids = parse((JSONArray) layer.get("data"));
            }

一直给我带来麻烦。是不是因为在我的地图的 'data' 字段中，我相信那是一个 JSON 字符串和一个编码的字符串。

经过重新搜索，我似乎需要对 'data' 进行解码，最终它会以某种方式变成您在第一段代码中看到的 'data' 字段。

关于我如何执行此操作或只是禁用所有编码的任何提示？

编辑：根据要求我的解析函数

private static Image[][] parse(JSONArray array)
    {
        Image[][] layer = new Image[WIDTH][HEIGHT];
        int index;

        for (int x = 0; x < WIDTH; ++x)
        {
            for (int y = 0; y < HEIGHT; ++y)
            {
                index = (int)((long)array.get((y * WIDTH) + x)); //must cast because JSON returns long
                layer[x][y] = getSpriteImage(index);
            }
        }
        return layer;
    }

编辑 2：我编辑的加载函数

public static void load(String path) throws Exception 
    {
        JSONParser parser = new JSONParser();
        Object obj = parser.parse(new FileReader(path));
        JSONObject jObj = (JSONObject) obj;

        JSONArray layers = (JSONArray) jObj.get("layers");
        int amount = layers.size();

        for (int i = 0; i < amount; i++) 
        {

            JSONObject layer = (JSONObject) layers.get(i);
            String type = (String) layer.get("name");

            if (type.equals("solids")) 
            {
                Decoder decoder = Base64.getDecoder();
                byte[] decodedBytes = decoder.decode((byte[]) layer.get("data"));
                Inflater decompresser = new Inflater();
                solids = parse((JSONArray)decompresser.inflate(decodedBytes));

编辑 3：我的 getSpriteImage 函数

private static Image getSpriteImage(int index)
{
    if (index == 0 )
    {
        return null;
    }

    index -= 1;

    SpriteSheet sheet = Resources.getSprite("tileset");
    int verti = sheet.getVerticalCount();
    int horiz = sheet.getHorizontalCount();

    int y = (index / verti);
    int x = (index % horiz);

    return sheet.getSubImage(x, y);
}

编辑 5：地图的外观

[44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, etcccccccccccccccccccccccccccccccccccccccccccccccc]

编辑 6：世界和 GameState 的渲染方法

world-最终值Tile.SIZE = 5;

public static void render(float xRend, float yRend)
    {
        int offset = 2;
        int xStart = (int)(xRend / Tile.SIZE) - offset;
        int yStart = (int)(yRend / Tile.SIZE) - offset;
        int xEnd = (Window.WIDTH / Tile.SIZE) + xStart + (offset * 2);
        int yEnd = (Window.HEIGHT / Tile.SIZE) + yStart + (offset * 2);

        for (int x = xStart; x < xEnd; ++x)
        {
            for (int y = yStart; y < yEnd; ++y)
            {
                if (solidTileBound(x, y))
                {
                    solids[x][y].draw(x * Tile.SIZE, y * Tile.SIZE, Tile.SIZE, Tile.SIZE);
                }
            }
        }

    }

和游戏状态：

@Override
public void render(GameContainer gc, StateBasedGame stateGame, Graphics gfx) throws SlickException 
{
    gfx.drawString(("Game State"), 50, 50);

    //gfx.translate(-1500, -1500);
    World.render(500, 500);
    //gfx.resetTransform();

}

编辑 7：

[LOG] Loading C:\Users\William.William-PC\Desktop\testMap.json
Sun Dec 06 18:51:33 EST 2015 ERROR:Error loading World
org.newdawn.slick.SlickException: Error loading World
    at main.java.TestGame.init(TestGame.java:39)
    at org.newdawn.slick.AppGameContainer.setup(AppGameContainer.java:390)
    at org.newdawn.slick.AppGameContainer.start(AppGameContainer.java:314)
    at main.java.Main.main(Main.java:40)
Caused by: java.lang.RuntimeException: Resource not found: tileset.png
    at org.newdawn.slick.util.ResourceLoader.getResourceAsStream(ResourceLoader.java:69)
    at org.newdawn.slick.opengl.InternalTextureLoader.getTexture(InternalTextureLoader.java:169)
    at org.newdawn.slick.Image.<init>(Image.java:196)
    at org.newdawn.slick.SpriteSheet.<init>(SpriteSheet.java:129)
    at org.newdawn.slick.SpriteSheet.<init>(SpriteSheet.java:115)
    at org.newdawn.slick.SpriteSheet.<init>(SpriteSheet.java:102)
    at main.java.Resources.addTileSet(Resources.java:55)
    at main.java.JSONLoader.load(JSONLoader.java:33)
    at main.java.TestGame.init(TestGame.java:31)
    ... 3 more

我仔细查看了它，但我不确定我应该把它放在哪里 tileset.png 或者为什么世界不会为此加载。您是否创建了自己的 .json 世界导出来测试它？

Answer 1

非常接近。不幸的是 Inflater 比这更复杂：

而不是

            Decoder decoder = Base64.getDecoder();
            byte[] decodedBytes = decoder.decode((byte[]) layer.get("data"));
            Inflater decompresser = new Inflater();
            solids = parse((JSONArray)decompresser.inflate(decodedBytes));

试试这个：

            Object o = layer.get("data");

            if ( o instanceof JSONArray )
                solids = parseJSONArray( (JSONArray) o );
            else if ( o instanceof String 
                && "base64".equals( layer.get( "encoding" ) )
                && "zlib".equals( layer.get( "compression" ) )
            )
            {
                // base64 decode
                Decoder decoder = Base64.getDecoder();
                byte[] decodedBytes = decoder.decode((String) o);

                // zlib decompress
                Inflater decompresser = new Inflater();
                decompresser.setInput(decodedBytes);
                byte[] decompressedBytes = new byte[WIDTH * HEIGHT * 4];
                int resultLength = decompresser.inflate(decompressedBytes);
                decompresser.end();

                // convert `byte[N*4]` to `int[N]`
                int[] result = new int[WIDTH * HEIGHT];
                ByteBuffer bb = ByteBuffer.wrap(decompressedBytes);
                bb.order(ByteOrder.LITTLE_ENDIAN);
                bb.asIntBuffer().get(result);

                solids = parseIntArray( result );
            }
            else
                throw new RuntimeException( "Unimplemented data type: "
                    + o.getClass().getName() );

将原来的 parse 函数重命名为 parseJSONArray（例如），然后将其复制到一个新函数 parseByteArray，如下所示：

private static Image[][] parseIntArray( int[] array )
{
    Image[][] layer = new Image[WIDTH][HEIGHT];

    for (int x = 0; x < WIDTH; ++x)
        for (int y = 0; y < HEIGHT; ++y)
            layer[x][y] = getSpriteImage( array[ y * WIDTH + x ] );

    return layer;
}

MapEditor 导出为 JSON - 对象已加密？

MapEditor export as JSON - Object encrypted?

java

json

slick

tiled