public void addBiomes(List<BiomeGenBase> biomes){
  allowedBiomes.addAll(getBiomesEntries(biomes));
}

public void addBiomes ( List < BiomeGenBase > biomes ) { allowedBiomes . addAll ( getBiomesEntries ( biomes ) ) ; }
adds a list of biomes to the allowed list of biomes for this planet
