最近想做个Android的游戏，用到libgdx，现在研究地图这块，制作好地图tmx文件后需要处理后libgdx才能载入，需要用到TiledMapPacker工具，该工具被放在gdx-tiled-preprocessor.jar里，这破玩意可愁死我了，一路尝试下来各种各种报错神马的诸如：

Failed to load Main-Class manifest attribute

Exception in thread "main" com.badlogic.gdx.utils.GdxRuntimeException: Creating window failed 
at com.badlogic.gdx.backends.jogl.JoglApplication.<init>(JoglApplication.java:86) 
at com.badlogic.gdx.tiledmappacker.TiledMapPacker.main(TiledMapPacker.java:329) 
at com.skyd.tiledmappacker.TiledMapPackerTool.main(TiledMapPackerTool.java:15) 
Caused by: java.lang.reflect.InvocationTargetException 
at java.awt.EventQueue.invokeAndWait(Unknown Source) 
at javax.swing.SwingUtilities.invokeAndWait(Unknown Source) 
at com.badlogic.gdx.backends.jogl.JoglApplication.<init>(JoglApplication.java:80) 
... 2 more 
Caused by: java.lang.UnsatisfiedLinkError: no gdx64 in java.library.path 
at java.lang.ClassLoader.loadLibrary(Unknown Source) 
at java.lang.Runtime.loadLibrary0(Unknown Source) 
at java.lang.System.loadLibrary(Unknown Source) 
at com.badlogic.gdx.utils.GdxNativesLoader.load(GdxNativesLoader.java:118) 
at com.badlogic.gdx.backends.jogl.JoglNativesLoader.load(JoglNativesLoader.java:29) 
at com.badlogic.gdx.backends.jogl.JoglApplication.initialize(JoglApplication.java:111) 
at com.badlogic.gdx.backends.jogl.JoglApplication$1.run(JoglApplication.java:82) 
at java.awt.event.InvocationEvent.dispatch(Unknown Source) 
at java.awt.EventQueue.dispatchEventImpl(Unknown Source) 
at java.awt.EventQueue.access$000(Unknown Source) 
at java.awt.EventQueue$1.run(Unknown Source) 
at java.awt.EventQueue$1.run(Unknown Source) 
at java.security.AccessController.doPrivileged(Native Method) 
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source) 
at java.awt.EventQueue.dispatchEvent(Unknown Source) 
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) 
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) 
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) 
at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
at java.awt.EventDispatchThread.run(Unknown Source)

Exception in thread "main" java.lang.NullPointerException 
at com.badlogic.gdx.tiledmappacker.TiledMapPacker.processMap(TiledMapPac 
ker.java:92) 
at com.skyd.tiledmappacker.Main.main(Main.java:38)

到最后看网上别人也无解，说这玩意全是错误，都是用单独的图块文件通过TexturePacker拼起来后得到整图及packfile文件，然后再拿进地图编辑器编辑以输出tmx文件，感觉切成小图再重新拼合挺麻烦的，就尝试修正这个工具：

我新建了这个项目，引入了相关的jar和gdx-tiled-preprocessor.jar的源码，在新建的Main类中的主函数里仿照原先TiledMapPacker类的主函数的调用方式调用TiledMapPacker类的功能，但是去掉了新建窗口的那部分代码：

我真不知道这操蛋的窗口建起来是搞毛用的，里面屁也不执行，还是死活都会报错，娘的，这是Main类的代码：

package com.skyd.tiledmappacker;

import java.io.File;

import java.io.IOException;

import com.badlogic.gdx.tiledmappacker.TiledMapPacker;

import com.badlogic.gdx.tools.imagepacker.TexturePacker.Settings;

public class Main {

    /**

     * @param args

     */

    public static void main(String[] args) {

        File tmxFile, inputDir, outputDir;

        Settings settings = new Settings();

        // Note: the settings below are now default...

        settings.padding = 2;

        settings.duplicatePadding = true;

        TiledMapPacker packer = new TiledMapPacker();

        if (args.length != 2) {

            System.out.println("Usage: INPUTDIR OUTPUTDIR");

            System.exit(0);

        }

        inputDir = new File(args[0]);

        outputDir = new File(args[1]);

        System.out.println("待处理目录："+inputDir+" "+inputDir.getAbsolutePath());

        System.out.println("待处理目录："+outputDir+" "+outputDir.getAbsolutePath());

        if (!inputDir.exists()) {

            throw new RuntimeException("Input directory does not exist");

        }

        try {

            packer.processMap(inputDir, outputDir, settings);

        } catch (IOException e) {

            throw new RuntimeException("Error processing map: " + e.getMessage());

        }

    }

}

修好了窗口问题，执行起来还是有BUG，执行到TiledMapPacker类的processMap方法里就会报错，要修改其源码，将其中创建FileHandle的方式全部由“Gdx.files.absolute(XXX.getAbsolutePath())”改为“new FileHandle(XXX.getAbsolutePath())”形式，改好后的代码：

   public void processMap (File inputDir, File outputDir, Settings settings) throws IOException {

        FileHandle inputDirHandle = new FileHandle(inputDir.getAbsolutePath());

        File[] files = inputDir.listFiles(new TmxFilter());

        for (File file : files) {

            System.out.println("待处理文件："+file+" "+file.getAbsolutePath());

            map = TiledLoader.createMap(new FileHandle(file.getAbsolutePath()));

            for (TileSet set : map.tileSets) {

                if (!processedTileSets.contains(set.imageName)) {

                    processedTileSets.add(set.imageName);

                    packTileSet(set, inputDirHandle, outputDir, settings);

                }

            }

            writeUpdatedTMX(outputDir, map.tmxFile);

        }

    }

然后导出为Runnable JAR file：

注意入口选择Main类。

修正好之后的测试环境：

在in目录里放置素材图片和地图编辑器生成的tmx文件：

命令行执行：

D:\test>java -jar TiledMapPacker.jar in out

out目录将得到处理后的文件：

至此就搞定了，可以在libgdx里进行渲染了。

修正后的TiledMapPacker.jar下载：http://vdisk.weibo.com/s/4jXW0

参考文档：

http://www.cnblogs.com/htynkn/archive/2012/01/12/libgdx_12.html

http://blog.csdn.net/cng1991/article/details/7288234

https://code.google.com/p/libgdx/wiki/TiledMaps

http://dpk.net/2011/05/01/libgdx-box2d-tiled-maps-full-working-example-part-1/

本文转自斯克迪亚博客园博客，原文链接：http://www.cnblogs.com/SkyD/archive/2012/04/19/2457237.html，如需转载请自行联系原作者