extends CharacterBody3D

@export var rotation_speed: float = 0.002


const SPEED = 5.0
const JUMP_VELOCITY = 4.5

func _ready() -> void:
	Input.mouse_mode = Input.MOUSE_MODE_CAPTURED


func _input(event: InputEvent) -> void:
	if Input.is_action_pressed("ui_cancel"):
		Input.mouse_mode = Input.MOUSE_MODE_VISIBLE

	if event is InputEventMouseButton and event.button_index == 1 and event.is_pressed():
		Input.mouse_mode = Input.MOUSE_MODE_CAPTURED

	if event is InputEventMouseMotion:
		handle_motion(event)


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_accept") 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", "front", "back")
	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()

func handle_motion(event: InputEventMouseMotion) -> void:
	if not Input.mouse_mode == Input.MOUSE_MODE_CAPTURED:
		return

	$Camera3D.rotation.x -= event.relative.y * rotation_speed
	$Camera3D.rotation.x = clamp($Camera3D.rotation.x, deg_to_rad(-89), deg_to_rad(89))
	rotation.y -= event.relative.x * rotation_speed