When I try to run the following code in Godot, I get the error:
Line 45:Identifier "delta" not declared in the current scope.
I don't know what this means or what I should do about it.
extends CharacterBody3D
const SPEED = 5.0
const JUMP_VELOCITY = 4.5
const SENSITIVITY = 0.03
#bob variables
const BOB_FREQ = 2.0
const BOB_AMP = 0.08
var t_bob = 0.0
func _physics_process(delta: float) -> void:
# Add the gravity.
if not is_on_floor():
velocity += get_gravity() * delta
@onready var head = $Head
@onready var camera = $Head/Camera3D
func _ready():
Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
func _unhandled_input(event):
if event is InputEventMouseMotion:
head.rotate_y(-event.relative.x * SENSITIVITY)
camera.rotate_x(-event.relative.y * SENSITIVITY)
camera.rotation.x = clamp(camera.rotation.x, deg_to_rad (-40), deg_to_rad (60))
# Handle jump.
if Input.is_action_just_pressed("jump") and is_on_floor():
velocity.y = JUMP_VELOCITY
# Get the input direction and handle the movement/deceleration.
# As good practice, you should replace UI actions with custom gameplay actions.
var input_dir := Input.get_vector("left", "right", "up", "down")
var direction: Vector3 = (head.transform.basis * Vector3(input_dir.x, 0, input_dir.y)).normalized()
if direction:
velocity.x = direction.x * SPEED
velocity.z = direction.z * SPEED
else:
velocity.x = 0
velocity.z = 0
t_bob += delta * velocity.length() * float(is_on_floor())
camera.transform.origin = _headbob(t_bob)
move_and_slide()
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
