class_name PlayerMovement
extends RefCounted

@export var _move_speed: float = 8
@export var _move_acceleration: float = 100
@export var _move_deceleration: float = 50

@export var _fall_speed: float = 20
@export var _fall_acceleration: float = 25

var move_input: Vector2

var _move_direction: Vector3


func movement(
	velocity: Vector3, delta: float, is_on_floor: bool, can_move: bool
) -> Vector3:
	velocity = _lateral_movement(velocity, delta, can_move)
	velocity = _vertical_movement(velocity, delta, is_on_floor)
	return velocity


func _lateral_movement(velocity: Vector3, delta: float, can_move: bool) -> Vector3:
	move_input = Input.get_vector("move_left", "move_right", "move_up", "move_down")

	if move_input.length() > 0 and can_move:
		_move_direction = Vector3(move_input.x, 0, move_input.y).normalized().rotated(
			Vector3.UP, Referencer.main_camera.rotation.y
		)
		var new_velocity := _move_direction * _move_speed
		new_velocity.y = velocity.y
		velocity = velocity.move_toward(new_velocity, _move_acceleration * delta)
	else:
		var new_velocity := Vector3.ZERO
		new_velocity.y = velocity.y
		velocity = velocity.move_toward(new_velocity, _move_deceleration * delta)

	return velocity


func _vertical_movement(velocity: Vector3, delta: float, is_on_floor: bool) -> Vector3:
	if not is_on_floor:
		var new_velocity := velocity
		new_velocity.y = -_fall_speed
		velocity = velocity.move_toward(new_velocity, _fall_acceleration * delta)
	else:
		velocity.y = 0

	return velocity