extends Node3D


@export_range(0.0, 1.0) var sensitivity: float = 0.25

# Mouse state
var _mouse_position = Vector2(0.0, 0.0)
var _total_pitch = 0.0
var _vel_multiplier = 4

func _input(event):
	# Receives mouse motion
	if event is InputEventMouseMotion:
		_mouse_position = event.relative
	# Receives mouse button input
	if event is InputEventMouseButton:
		match event.button_index:
			MOUSE_BUTTON_RIGHT: # Only allows rotation if right click down
				Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED if event.pressed else Input.MOUSE_MODE_VISIBLE)
			MOUSE_BUTTON_WHEEL_UP: # Increases max velocity
				_vel_multiplier = clamp(_vel_multiplier * 1.1, 0.2, 20)
			MOUSE_BUTTON_WHEEL_DOWN: # Decereases max velocity
				_vel_multiplier = clamp(_vel_multiplier / 1.1, 0.2, 20)
		
# Updates mouselook and movement every frame
func _process(_update):
	_update_mouselook()


func _update_mouselook():
	# Only rotates mouse if the mouse is captured
	if Input.get_mouse_mode() == Input.MOUSE_MODE_CAPTURED:
		_mouse_position *= sensitivity
		var yaw = _mouse_position.x
		var pitch = _mouse_position.y
		_mouse_position = Vector2(0, 0)
		
		# Prevents looking up/down too far
		pitch = clamp(pitch, -20 - _total_pitch, 60 - _total_pitch)
		_total_pitch += pitch
	
		rotate_y(deg_to_rad(-yaw))
		rotate_object_local(Vector3(1,0,0), deg_to_rad(-pitch))