Add an 'angle_difference' method for finding the shortest distance between two angles

[Miziziziz]

Many times when I'm making games I need to find the shortest difference between 2 angles, right now the simplest way to do this is:
var angle_diff = Vector2.RIGHT.rotated(angle_1).angle_to(Vector2.RIGHT.rotated(angle_2))

It would be nice to simplify this into one method call like:
var angle_diff = angle_difference(angle_1, angle_2)

[theraot]

See godotengine/godot#80225

[theraot]

I believe this is simpler right now:

var angle_diff = wrapf(angle_2 - angle_1, -PI, PI)

[AThousandShips]

Closing as implemented in godotengine/godot#80225