libgdx的tmx地图处理工具gdxtiledpreprocessor.jar（TiledMapPacker）修正版

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);
		}
	}