Improves the message generated when generating the folder for the compass data.

Outsources the encoding of the compass data into the file name
Written tests for the encoding
Did some internal cleaning of the class

src/main/java/appeng/spatial/CachedPlane.java

@@ -39,7 +39,7 @@ import appeng.api.movable.IMovableHandler;
 import appeng.api.movable.IMovableRegistry;
 import appeng.api.util.WorldCoord;
 import appeng.core.AELog;
-import appeng.core.WorldSettings;
+import appeng.core.worlddata.WorldData;
 import appeng.util.Platform;
 
 
@@ -348,7 +348,7 @@ public class CachedPlane
 
 				for( int y = 1; y < 255; y += 32 )
 				{
-					WorldSettings.getInstance().getCompass().updateArea( this.world, c.xPosition << 4, y, c.zPosition << 4 );
+					WorldData.instance().compassData().service().updateArea( this.world, c.xPosition << 4, y, c.zPosition << 4 );
 				}
 
 				Platform.sendChunk( c, this.verticalBits );