Add animation types based on if a certain key is pushed, if a player is holding or wearing a certain item (and does something with the item), triggers for animation if a player interacts with certain blocks, and things like that so hit animations and mining with a pick wouldn't be the same animation, or even some custom stuff like for players to right click with an item if the player were to like cast a spell in a magic mod with a certain item the player could animate an action with the wand for example.