Overrides an entity's animation with another one. This can be used to replace a predefined animation (for example, a character's \“walk\” animation) with a custom one during the game. You can specify the same name for both parameters to revert that animation to its original settings.

override_animation(entity, anim_to_override, override_with)

override_animation(player, "walk", "silly_walk")

Results: Until reverted, the “silly_walk” animation will be used whenever the player is walking instead of the original “walk” animation.