I want to create a data pack that changes the spawn rules for certain mobs to spawn in different biomes or locations than what they do normally. The first mobs I am trying to change are:
*Cave spiders: I want to have them spawn in caves whitout the need for a spawner.
*Salmon, Cod and Dolphins: I want these to spawn in all ocean biomes.
Could someone help me understand how to do this or tell me if this is even possible?
Thanks in advance.