TowerDefense/Towers/TowerListResource.gd

@tool
extends Resource
class_name TowerListResource

@export var towers : Array[TowerResource] : set = towersHasChanged

func getTowerSceneById(towerType : Tower.TYPE) -> PackedScene :
	var towerIndex := towers.find_custom(func(towerResource): return towerResource.towerType == towerType)
	return towers[towerIndex].towerScene


func towersHasChanged(value : Array) -> void:
	if Engine.is_editor_hint():
		if value.back() == null:
			value.pop_back()
			value.append(TowerResource.new())
		for towerResource in towers:
			if not towerResource.changed.is_connected(emit_changed):
				towerResource.changed.connect(emit_changed)
		emit_changed()
	towers = value