Headbob script

extends CharacterBody3D

const BOB_FREQ = 1.5
const BOB_AMP = 0.04
var t_bob = 0.0

func _process(delta):
    t_bob += delta * velocity.length() * float(is_on_floor())
    camera.transform.origin = headbob(t_bob)

func headbob(time) -> Vector3:
    var pos = Vector3.ZERO
    pos.y = sin(time * BOB_FREQ) * BOB_AMP
    pos.x = cos(time * BOB_FREQ / 2) * BOB_AMP
    return pos