Switched to binary preference file for desktop

desktop/src/io/anuke/mindustry/desktop/DesktopLauncher.java

@@ -1,11 +1,15 @@
 package io.anuke.mindustry.desktop;
 
 import com.apple.eawt.Application;
+import com.badlogic.gdx.ApplicationListener;
 import com.badlogic.gdx.Files.FileType;
 import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.Preferences;
 import com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application;
 import com.badlogic.gdx.backends.lwjgl3.Lwjgl3ApplicationConfiguration;
+import com.badlogic.gdx.backends.lwjgl3.Lwjgl3FileHandle;
 import com.badlogic.gdx.files.FileHandle;
+import com.badlogic.gdx.utils.ObjectMap;
 import io.anuke.kryonet.KryoClient;
 import io.anuke.kryonet.KryoServer;
 import io.anuke.mindustry.Mindustry;
@@ -13,6 +17,7 @@ import io.anuke.mindustry.core.Platform;
 import io.anuke.mindustry.io.SaveIO;
 import io.anuke.mindustry.io.Saves.SaveSlot;
 import io.anuke.mindustry.net.Net;
+import io.anuke.ucore.io.BinaryPreferences;
 import io.anuke.ucore.util.Bundles;
 import io.anuke.ucore.util.OS;
 import io.anuke.ucore.util.Strings;
@@ -23,7 +28,8 @@ import java.util.List;
 
 import static io.anuke.mindustry.Vars.*;
 
-public class DesktopLauncher {
+public class DesktopLauncher extends Lwjgl3Application{
+    ObjectMap<String, Preferences> prefmap;
 	
 	public static void main (String[] arg) {
 		
@@ -70,17 +76,36 @@ public class DesktopLauncher {
             });
         }
 
-        config.setPreferencesConfig(OS.getAppDataDirectoryString("Mindustry"), FileType.Absolute);
-
         Platform.instance = new DesktopPlatform(arg);
 
 		Net.setClientProvider(new KryoClient());
 		Net.setServerProvider(new KryoServer());
 
 		try {
-			new Lwjgl3Application(new Mindustry(), config);
+			new DesktopLauncher(new Mindustry(), config);
 		}catch (Throwable e){
 		    CrashHandler.handle(e);
 		}
 	}
+
+    public DesktopLauncher(ApplicationListener listener, Lwjgl3ApplicationConfiguration config) {
+        super(listener, config);
+    }
+
+    @Override
+    public Preferences getPreferences(String name) {
+	    String prefsDirectory = OS.getAppDataDirectoryString("Mindustry");
+
+	    if(prefmap == null){
+	        prefmap = new ObjectMap<>();
+        }
+
+	    if(prefmap.containsKey(name)){
+	        return prefmap.get(name);
+        }else{
+            Preferences prefs = new BinaryPreferences(new Lwjgl3FileHandle(new File(prefsDirectory, name), FileType.Absolute));
+            prefmap.put(name, prefs);
+            return prefs;
+        }
+    }
 }