extends Node3D
class_name WeaponContainer

var slots: Array[WeaponSlot]
var current_slot: WeaponSlot = null
var current_weapon: Weapon

signal slot_selected()

func _ready():
	for slot in get_children():
		assert(slot is WeaponSlot)
		slots.push_back(slot as WeaponSlot)
	
	for slot in range(slots.size()):
		if current_slot == null:
			select_slot(slot)
		else:
			break
	
	assert(current_slot != null)

func select_slot(index: int):
	assert(index < slots.size())

	if slots[index].has_weapon:
		current_slot = slots[index]
		current_weapon = current_slot.weapon
		slot_selected.emit()

func first_free_slot() -> WeaponSlot:
	for slot in slots:
		if not slot.has_weapon:
			return slot
	return null

func refresh_current_slot() -> void:
	var index = slots.find(current_slot)
	select_slot(index)