CLASS btj net/minecraft/world/gen/chunk/FlatChunkGenerator FIELD e biome Lbde; FIELD f phantomSpawner Lbts; METHOD (Lbcg;Lbdg;Lcaf;)V ARG 1 world ARG 3 config METHOD a produceHeight (IILbtl$a;)I ARG 1 x ARG 2 z ARG 3 type METHOD a locateStructure (Lbcf;Ljava/lang/String;Let;IZ)Let; ARG 1 world ARG 2 structureKey ARG 3 origin ARG 4 radius METHOD a spawnEntities (Lbcf;ZZ)V ARG 1 world ARG 2 spawnMonsters ARG 3 spawnAnimals METHOD a hasStructure (Lbde;Lbzc;)Z METHOD a getDecorationBiome (Lvb;II)Lbde; ARG 2 chunkX ARG 3 chunkZ METHOD b getSpawnHeight ()I METHOD b populateNoise (Lbcg;Lbrs;)V ARG 1 world ARG 2 chunk METHOD b getStructureConfig (Lbde;Lbzc;)Lbvz; METHOD b getDecorationBiome (Lbrs;)Lbde; METHOD c buildSurface (Lbrs;)V ARG 1 chunk