Mouse not moving

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1

Godot Version

Godot 4.5.1 (Steam)

Question

The mouse should move the camera, what am I doing wrong?

extends CharacterBody3D


@onready var head = $Head
@onready var camera = $Head/Camera3D
const SPEED = 5.0
const JUMP_VELOCITY = 4.5



func _physics_process(delta: float) -> void:
	# Add the gravity.
	if not is_on_floor():
		velocity += get_gravity() * delta

	# Handle jump.
	if Input.is_action_just_pressed("ui_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("ui_left", "ui_right", "ui_up", "ui_down")
	var direction := (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 = move_toward(velocity.x, 0, SPEED)
		velocity.z = move_toward(velocity.z, 0, SPEED)

	move_and_slide()

var mouse_sensitivity = 0.002
var mouse_look_sensitivity = 0.002
var camera_pitch = 0.0
const CAMERA_PITCH_MIN = deg_to_rad(-80.0) 
const CAMERA_PITCH_MAX = deg_to_rad(80.0)

func _ready():
	Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
	
func _unhandled_input(event):
	if event is InputEventMouseMotion:
		rotate_y(-event.relative.x * mouse_look_sensitivity)

		# Pitch (Rotate the Camera/X-axis)
		camera_pitch -= event.relative.y * mouse_sensitivity
		camera_pitch = clamp(camera_pitch, CAMERA_PITCH_MIN, CAMERA_PITCH_MAX)
		camera.rotation.x = camera_pitch
2

the only thing wrong with this (other than the lack of static typing) is that you are changing camera_pitch and then assigning it, and that it happens in _unhanded_input.

here’s what working code looks like:


func _unhandled_input(event: InputEvent) -> void:
	if event is InputEventMouseMotion:
		rotate_y(-event.relative.x * look_speed.x)
		v_cam.rotate_x(-event.relative.y * look_speed.y)

func _physics_process(delta: float) -> void:
	v_cam.rotation.x = clampf(v_cam.rotation.x, v_limit.y, v_limit.x)

if it’s not the code, you should check your Controls (UI elements) and make sure they are set to pass.
unhandled_input only works with input that has not been handled by UI, so an invisible Control can capture the input, preventing it from reaching the 3D.

3

It gives me an error about “v_cam” and v_limit. Must be the variables/identifiers, right?

4

For your code:

func _unhandled_input(event: InputEvent) -> void:
	if event is not InputEventMouseMotion:
		return

	rotate_y(-event.relative.x * mouse_look_sensitivity)
	camera.rotate_x(-event.relative.y * mouse_look_sensitivity)


func _physics_process(delta: float) -> void:
	camera.rotation.x = clampf(camera.rotation.x, CAMERA_PITCH_MIN, CAMERA_PITCH_MAX)
5

yes, I copied my code to show you. what matters is the order in which it happens.
but I would look at your UI (if you have one) as that could also be the problem.

6

it says “unreachable_code”

And it’s not working