CLASS btg net/minecraft/entity/boss/dragon/EnderDragonSpawnState FIELD a START Lbtg; FIELD b PREPARE_CREATE_SPIKES Lbtg; FIELD c CREATE_SPIKES Lbtg; FIELD d SPAWN_DRAGON Lbtg; FIELD e END Lbtg; METHOD a run (Lur;Lbth;Ljava/util/List;ILet;)V