class_name SpawnPoint
extends Node3D

var _is_occupied: bool = false
var _enemy: Enemy      = null

@export var is_occupied: bool:
	get:
		return _is_occupied
	set(value):
		_is_occupied = value

@export var enemy: Enemy:
	get:
		return _enemy
	set(value):
		if _enemy == value:
			return

		# Vorherige Verbindung lösen, falls vorhanden
		if _enemy and _enemy.state_changed.is_connected(_on_enemy_state_changed):
			_enemy.state_changed.disconnect(_on_enemy_state_changed)

		_enemy = value

		if _enemy:
			# Neue Verbindung herstellen, doppelte Verbindungen vermeiden
			if not _enemy.state_changed.is_connected(_on_enemy_state_changed):
				_enemy.state_changed.connect(_on_enemy_state_changed)
			_is_occupied = true
		else:
			_is_occupied = false


func _on_enemy_state_changed(old_state: Unit.States, new_state: Unit.States) -> void:
	if old_state == Unit.States.idle and new_state != Unit.States.idle:
		enemy = null