Add --levelsDir

README.md

@@ -77,9 +77,10 @@ Arguments may be as follows:
 - `icon` - List of paths of icon PNGs separated by file system path separator (";" on windows, ":" on unix)
 - `applet` - Makes the game think you're running an applet which:
 	- Removes quit button in versions between Beta 1.0 and release 1.5.2
-	- Changes mouse input code in classic
-- `survival` - Patches classic creative versions to start in survival
-- `creative` - Patches classic survival versions to start in creative
+	- Changes mouse input code in Classic
+- `levelsDir` - Where to save Classic and Indev levels
+- `survival` - Patches Classic creative versions to start in survival
+- `creative` - Patches Classic survival versions to start in creative
 - `oneSixFlag` - Toggles notice about the release of 1.6 in 1.5.2
 - `serverSHA1` - Compare minecraft_server.jar in .minecraft/server against this hash
 - `serverURL` - URL to download the server from if the hash is mismatched or the jar is missing

src/main/java/org/mcphackers/launchwrapper/LaunchConfig.java

@@ -57,6 +57,7 @@ public class LaunchConfig {
 	private final LaunchParameterSwitch awtFrame 			= new LaunchParameterSwitchReverse("awtFrame", lwjglFrame);
 	public final LaunchParameterEnum<SkinType> skinProxy 	= new LaunchParameterEnum<SkinType>("skinProxy", SkinType.DEFAULT, true);
 	public final LaunchParameterSkinOptions skinOptions		= new LaunchParameterSkinOptions("skinOptions");
+	public final LaunchParameterFile levelsDir				= new LaunchParameterFile("levelsDir", new File(DEFAULT_GAME_DIR, "levels"), true);
 	public final LaunchParameterSwitch isom 				= new LaunchParameterSwitch("isom", false, true);
 	public final LaunchParameterFileList icon 				= new LaunchParameterFileList("icon", null, true);
 	public final LaunchParameterString title 				= new LaunchParameterString("title", null, true);
@@ -65,8 +66,8 @@ public class LaunchConfig {
 	public final LaunchParameterSwitch applet 				= new LaunchParameterSwitch("applet", false);
 	public final LaunchParameterSwitch oneSixFlag 			= new LaunchParameterSwitch("oneSixFlag", false, true);
 	public final LaunchParameterSwitch unlicensedCopy		= new LaunchParameterSwitchReverse("unlicensedCopy", haspaid);
-	public final LaunchParameterSwitch creative	 			= new LaunchParameterSwitch("creative", false);
-	public final LaunchParameterSwitch survival	 			= new LaunchParameterSwitch("survival", false);
+	public final LaunchParameterSwitch creative	 			= new LaunchParameterSwitch("creative", false, true);
+	public final LaunchParameterSwitch survival	 			= new LaunchParameterSwitch("survival", false, true);
 	public final LaunchParameterString serverURL 			= new LaunchParameterString("serverURL", null, true);
 	public final LaunchParameterString serverSHA1 			= new LaunchParameterString("serverSHA1", null, true);
 	// clang-format on

src/main/java/org/mcphackers/launchwrapper/protocol/LegacyURLStreamHandler.java

@@ -18,7 +18,7 @@ public LegacyURLStreamHandler(LaunchConfig config) {
 		this.config = config;
 		this.assets = new AssetRequests(config.assetsDir.get(), config.assetIndex.get());
 		this.skins = new SkinRequests(config.gameDir.get(), config.skinOptions.get(), config.skinProxy.get());
-		this.levelSaveDir = new File(config.gameDir.get(), "levels");
+		this.levelSaveDir = config.levelsDir.get();
 	}
 
 	@Override