-- minetest.register_alias(name, convert_to)
-- "This means that if the engine finds nodes with the name name in the world the node with the name convert_to is used instead. "
-- <https://dev.minetest.net/minetest.register_alias>
minetest.register_alias("creatures:chicken", "mobs_animal:chicken")
minetest.register_alias("creatures:sheep", "mobs_animal:sheep_white")
minetest.register_alias("mobs_animal:sheep", "mobs_animal:sheep_white")  -- this is to fix an earlier bug in this mod
minetest.register_alias("creatures:ghost", "mobs_monster:spider")
minetest.register_alias("creatures:mummy", "spawners:mummy")
-- minetest.register_alias("creatures:mummy", "mobs_monster:stone_monster")
minetest.register_alias("creatures:oerrki", "mobs_monster:oerrki")
minetest.register_alias("creatures:zombie", "mobs_monster:stone_monster")

mobs:alias_mob("creatures:chicken", "mobs_animal:chicken")
mobs:alias_mob("creatures:sheep", "mobs_animal:sheep_white")
mobs:alias_mob("mobs_animal:sheep", "mobs_animal:sheep_white")  -- this is to fix an earlier bug in this mod
mobs:alias_mob("creatures:ghost", "mobs_monster:spider")
mobs:alias_mob("creatures:mummy", "spawners:mummy")
-- minetest.register_alias("creatures:mummy", "mobs_monster:stone_monster")
mobs:alias_mob("creatures:oerrki", "mobs_monster:oerrki")
mobs:alias_mob("creatures:zombie", "mobs_monster:stone_monster")

minetest.register_alias("creatures:chicken_spawner", "spawners:mobs_chicken_spawner")
minetest.register_alias("creatures:ghost_spawner", "spawners:mobs_spider_spawner")
minetest.register_alias("creatures:mummy_spawner", "spawners:spawners_mummy_spawner")
minetest.register_alias("creatures:oerrki_spawner", "spawners:mobs_oerkki_spawner")
minetest.register_alias("creatures:sheep_spawner", "spawners:mobs_sheep_white_spawner")
minetest.register_alias("creatures:zombie_spawner", "spawners:mobs_stone_monster_spawner")

-- meat:
minetest.register_alias("creatures:chicken_flesh", "mobs:chicken_raw")
minetest.register_alias("creatures:chicken_meat", "mobs:chicken_cooked")
minetest.register_alias("creatures:rotten_flesh", "")
minetest.register_alias("creatures:grilled_rotten_flesh", "")
minetest.register_alias("creatures:flesh", "mobs:meat_raw")
minetest.register_alias("creatures:meat", "mobs:meat")

-- non-meat food:
minetest.register_alias("creatures:egg", "mobs:egg")
minetest.register_alias("creatures:fried_egg", "mobs:chicken_egg_fried")

-- materials:
minetest.register_alias("creatures:feather", "farming:string")

-- tools:
minetest.register_alias("creatures:shears", "mobs:shears")

-- eggs (there is no true chicken spawner egg item (at least in egg texture) in spawners or mobs, so using regular chicken which works the same (could also use mobs:egg for partial effectiveness) instead):
minetest.register_alias("creatures:chicken_spawn_egg", "mobs_animal:chicken")
minetest.register_alias("creatures:ghost_spawn_egg", "mobs_monster:spider")
minetest.register_alias("creatures:mummy_spawn_egg", "spawners:mummy")
minetest.register_alias("creatures:oerrki_spawn_egg", "mobs_monster:oerkki")
minetest.register_alias("creatures:sheep_spawn_egg", "mobs:sheep_white")
minetest.register_alias("creatures:zombie_spawn_egg", "mobs_monster:stone_monster")