Field of view

Zooms a player's view in or out, the way sprinting, Speed and Slowness change it. The change eases in and out over a few ticks. There are two ways to set it, and they multiply together:

• the modify_fov power, for as long as the player has it and its condition is true
• the set_fov action, for a set time or until it's reset

The value they change is a multiplier on the player's FOV setting, where 1 is unchanged, below 1 zooms in and above 1 zooms out. Minecraft keeps the final multiplier between 0.1 and 1.5. It stacks with what sprinting, Speed and a drawn bow already do, and it also scales spyglass zoom. Both forms are ported from Overgrown's Apoli.