MinecraftServer mcServer = overworld.func_73046_m();
ISaveHandler savehandler = overworld.getSaveHandler();
WorldSettings worldSettings = new WorldSettings(overworld.getWorldInfo());
WorldServer world = (dim == 0 ? overworld : new WorldServerMulti(mcServer, savehandler, overworld.getWorldInfo().getWorldName(), dim, worldSettings, overworld, mcServer.theProfiler));
world.addWorldAccess(new WorldManager(mcServer, world));
MinecraftForge.EVENT_BUS.post(new WorldEvent.Load(world));
if (!mcServer.isSinglePlayer())
{
world.getWorldInfo().setGameType(mcServer.getGameType());
}