WorldSettings config = new WorldSettings(worldDirectory, worldTC, false);
this.worldTC.Init(world, config);
Class<? extends BiomeGenerator> biomeGenClass = worldTC.getConfigs().getWorldConfig().biomeMode;
BiomeGenerator biomeManager = TerrainControl.getBiomeModeManager().createCached(biomeGenClass, worldTC);
WorldChunkManager chunkManager = createWorldChunkManager(worldTC, biomeManager);
this.worldTC.setBiomeManager(biomeManager);
return chunkManager;
}