extends CharacterBody3D
class_name RepairCart

var pullingPlayer: PlayerCharacter
var pullingPlayerDirection: Vector3
var pullDirection: Vector3
var momentum: Vector3
const speed: float = 1.2

const decelerationMoving: float = 1
const turnSpeed: float = PI/2

func _physics_process(delta: float) -> void:
	updatePullDirection()
	if pullDirection.length() > 3:
		momentum = clampVectorLength(momentum + clampVectorLength(pullDirection,0,1.5) * speed * delta,0,3)
	if !is_on_floor():
		momentum += get_gravity()
	velocity = momentum
	rotation.y = rotate_toward(rotation.y,atan2(velocity.x,velocity.z) - PI/2, turnSpeed*delta)  
	move_and_slide()
	
	momentum -= clampVectorLength(momentum.normalized() * decelerationMoving * delta, 0, momentum.length()) 

func clampVectorLength(Vector: Vector3, minLength: float, maxLength: float) -> Vector3:
	#scales Vector up/ down to the max/ min length givin. If the Vector has a length of 0 it will be returned without being scaled.
	if Vector.length() == 0: return Vector
	if Vector.length() < minLength:
		return Vector * minLength / Vector.length()
	elif Vector.length() > maxLength:
		return Vector * maxLength / Vector.length()
	return Vector

func updatePullDirection() -> void:
	if pullingPlayer:
		pullDirection = (pullingPlayer.position - position) * Vector3(1,0,1)

func _on_interact_box_interacted_with(playerRef: PlayerCharacter) -> void:
	addPlayer.bind(playerRef.name).rpc()

@rpc("any_peer","reliable","call_local")
func addPlayer(playerRefName: StringName) -> void:
	if get_node("/root/Main/Players/" + playerRefName) == pullingPlayer:
		pullingPlayer = null
	else:
		pullingPlayer = get_node("/root/Main/Players/" + playerRefName)