# no name - meant to be an autoload
# Handles regional origin.
extends Node

@export var region_size := 1000.0
@export var origin := Vector3i.ZERO
@export var anchor: RegionTransform

var nodes_to_move: Dictionary[Node3D, bool]

func _physics_process(_delta: float) -> void:
    if (anchor and anchor.region != origin):
        move_origin(anchor.region)

func add_node(new_node: Node3D) -> void:
    nodes_to_move[new_node] = true

func remove_node(old_node: Node3D) -> void:
    nodes_to_move.erase(old_node)
    
func move_origin(new_origin: Vector3i) -> void:
    origin = new_origin
    var move_amount := Vector3(new_origin - origin * 1000)
    for node in nodes_to_move:
        node.transform.origin += move_amount