Files
tbd-station-14/Content.Server/Storage/EntitySystems/StorageSystem.cs
2023-04-07 11:21:12 -07:00

667 lines
28 KiB
C#

using System.Linq;
using Content.Server.Administration.Managers;
using Content.Server.Ghost.Components;
using Content.Server.Interaction;
using Content.Server.Popups;
using Content.Server.Storage.Components;
using Content.Shared.ActionBlocker;
using Content.Shared.Administration;
using Content.Shared.CombatMode;
using Content.Shared.Containers.ItemSlots;
using Content.Shared.Destructible;
using Content.Shared.DoAfter;
using Content.Shared.Hands.Components;
using Content.Shared.Hands.EntitySystems;
using Content.Shared.Implants.Components;
using Content.Shared.Interaction;
using Content.Shared.Item;
using Content.Shared.Lock;
using Content.Shared.Placeable;
using Content.Shared.Stacks;
using Content.Shared.Storage;
using Content.Shared.Storage.Components;
using Content.Shared.Timing;
using Content.Shared.Verbs;
using JetBrains.Annotations;
using Robust.Server.Containers;
using Robust.Server.GameObjects;
using Robust.Server.Player;
using Robust.Shared.Audio;
using Robust.Shared.Containers;
using Robust.Shared.Map;
using Robust.Shared.Player;
using Robust.Shared.Random;
using Robust.Shared.Timing;
using Robust.Shared.Utility;
using static Content.Shared.Storage.SharedStorageComponent;
namespace Content.Server.Storage.EntitySystems
{
[UsedImplicitly]
public sealed partial class StorageSystem : EntitySystem
{
[Dependency] private readonly IGameTiming _gameTiming = default!;
[Dependency] private readonly IRobustRandom _random = default!;
[Dependency] private readonly IAdminManager _admin = default!;
[Dependency] private readonly ContainerSystem _containerSystem = default!;
[Dependency] private readonly SharedDoAfterSystem _doAfterSystem = default!;
[Dependency] private readonly EntityLookupSystem _entityLookupSystem = default!;
[Dependency] private readonly EntityStorageSystem _entityStorage = default!;
[Dependency] private readonly InteractionSystem _interactionSystem = default!;
[Dependency] private readonly PopupSystem _popupSystem = default!;
[Dependency] private readonly SharedHandsSystem _sharedHandsSystem = default!;
[Dependency] private readonly SharedInteractionSystem _sharedInteractionSystem = default!;
[Dependency] private readonly UserInterfaceSystem _uiSystem = default!;
[Dependency] private readonly ActionBlockerSystem _actionBlockerSystem = default!;
[Dependency] private readonly SharedAudioSystem _audio = default!;
[Dependency] private readonly SharedCombatModeSystem _combatMode = default!;
[Dependency] private readonly SharedTransformSystem _transform = default!;
[Dependency] private readonly SharedAppearanceSystem _appearance = default!;
[Dependency] private readonly UseDelaySystem _useDelay = default!;
/// <inheritdoc />
public override void Initialize()
{
base.Initialize();
SubscribeLocalEvent<ServerStorageComponent, ComponentInit>(OnComponentInit);
SubscribeLocalEvent<ServerStorageComponent, GetVerbsEvent<ActivationVerb>>(AddOpenUiVerb);
SubscribeLocalEvent<ServerStorageComponent, GetVerbsEvent<UtilityVerb>>(AddTransferVerbs);
SubscribeLocalEvent<ServerStorageComponent, InteractUsingEvent>(OnInteractUsing, after: new []{ typeof(ItemSlotsSystem)} );
SubscribeLocalEvent<ServerStorageComponent, ActivateInWorldEvent>(OnActivate);
SubscribeLocalEvent<ServerStorageComponent, OpenStorageImplantEvent>(OnImplantActivate);
SubscribeLocalEvent<ServerStorageComponent, AfterInteractEvent>(AfterInteract);
SubscribeLocalEvent<ServerStorageComponent, DestructionEventArgs>(OnDestroy);
SubscribeLocalEvent<ServerStorageComponent, StorageInteractWithItemEvent>(OnInteractWithItem);
SubscribeLocalEvent<ServerStorageComponent, StorageInsertItemMessage>(OnInsertItemMessage);
SubscribeLocalEvent<ServerStorageComponent, BoundUIOpenedEvent>(OnBoundUIOpen);
SubscribeLocalEvent<ServerStorageComponent, BoundUIClosedEvent>(OnBoundUIClosed);
SubscribeLocalEvent<ServerStorageComponent, EntRemovedFromContainerMessage>(OnStorageItemRemoved);
SubscribeLocalEvent<ServerStorageComponent, AreaPickupDoAfterEvent>(OnDoAfter);
SubscribeLocalEvent<StorageFillComponent, MapInitEvent>(OnStorageFillMapInit);
}
private void OnComponentInit(EntityUid uid, ServerStorageComponent storageComp, ComponentInit args)
{
base.Initialize();
// ReSharper disable once StringLiteralTypo
storageComp.Storage = _containerSystem.EnsureContainer<Container>(uid, "storagebase");
storageComp.Storage.OccludesLight = storageComp.OccludesLight;
UpdateStorageVisualization(uid, storageComp);
RecalculateStorageUsed(storageComp);
UpdateStorageUI(uid, storageComp);
}
private void AddOpenUiVerb(EntityUid uid, ServerStorageComponent component, GetVerbsEvent<ActivationVerb> args)
{
bool silent = false;
if (!args.CanAccess || !args.CanInteract || TryComp<LockComponent>(uid, out var lockComponent) && lockComponent.Locked)
{
// we allow admins to open the storage anyways
if (!_admin.HasAdminFlag(args.User, AdminFlags.Admin))
return;
silent = true;
}
silent |= HasComp<GhostComponent>(args.User);
// Get the session for the user
if (!TryComp<ActorComponent>(args.User, out var actor))
return;
// Does this player currently have the storage UI open?
bool uiOpen = _uiSystem.SessionHasOpenUi(uid, StorageUiKey.Key, actor.PlayerSession);
ActivationVerb verb = new()
{
Act = () => OpenStorageUI(uid, args.User, component, silent)
};
if (uiOpen)
{
verb.Text = Loc.GetString("verb-common-close-ui");
verb.Icon = new SpriteSpecifier.Texture(
new ResourcePath("/Textures/Interface/VerbIcons/close.svg.192dpi.png"));
}
else
{
verb.Text = Loc.GetString("verb-common-open-ui");
verb.Icon = new SpriteSpecifier.Texture(
new ResourcePath("/Textures/Interface/VerbIcons/open.svg.192dpi.png"));
}
args.Verbs.Add(verb);
}
private void AddTransferVerbs(EntityUid uid, ServerStorageComponent component, GetVerbsEvent<UtilityVerb> args)
{
if (!args.CanAccess || !args.CanInteract)
return;
var entities = component.Storage?.ContainedEntities;
if (entities == null || entities.Count == 0 || TryComp(uid, out LockComponent? lockComponent) && lockComponent.Locked)
return;
// if the target is storage, add a verb to transfer storage.
if (TryComp(args.Target, out ServerStorageComponent? targetStorage)
&& (!TryComp(uid, out LockComponent? targetLock) || !targetLock.Locked))
{
UtilityVerb verb = new()
{
Text = Loc.GetString("storage-component-transfer-verb"),
IconEntity = args.Using,
Act = () => TransferEntities(uid, args.Target, component, lockComponent, targetStorage, targetLock)
};
args.Verbs.Add(verb);
}
}
/// <summary>
/// Inserts storable entities into this storage container if possible, otherwise return to the hand of the user
/// </summary>
/// <returns>true if inserted, false otherwise</returns>
private void OnInteractUsing(EntityUid uid, ServerStorageComponent storageComp, InteractUsingEvent args)
{
if (args.Handled || !storageComp.ClickInsert || TryComp(uid, out LockComponent? lockComponent) && lockComponent.Locked)
return;
Logger.DebugS(storageComp.LoggerName, $"Storage (UID {uid}) attacked by user (UID {args.User}) with entity (UID {args.Used}).");
if (HasComp<PlaceableSurfaceComponent>(uid))
return;
if (PlayerInsertHeldEntity(uid, args.User, storageComp))
args.Handled = true;
}
/// <summary>
/// Sends a message to open the storage UI
/// </summary>
/// <returns></returns>
private void OnActivate(EntityUid uid, ServerStorageComponent storageComp, ActivateInWorldEvent args)
{
if (args.Handled || _combatMode.IsInCombatMode(args.User) || TryComp(uid, out LockComponent? lockComponent) && lockComponent.Locked)
return;
OpenStorageUI(uid, args.User, storageComp);
}
/// <summary>
/// Specifically for storage implants.
/// </summary>
private void OnImplantActivate(EntityUid uid, ServerStorageComponent storageComp, OpenStorageImplantEvent args)
{
if (args.Handled || !TryComp<TransformComponent>(uid, out var xform))
return;
OpenStorageUI(uid, xform.ParentUid, storageComp);
}
/// <summary>
/// Allows a user to pick up entities by clicking them, or pick up all entities in a certain radius
/// around a click.
/// </summary>
/// <returns></returns>
private async void AfterInteract(EntityUid uid, ServerStorageComponent storageComp, AfterInteractEvent args)
{
if (!args.CanReach)
return;
// Pick up all entities in a radius around the clicked location.
// The last half of the if is because carpets exist and this is terrible
if (storageComp.AreaInsert && (args.Target == null || !HasComp<ItemComponent>(args.Target.Value)))
{
var validStorables = new List<EntityUid>();
var itemQuery = GetEntityQuery<ItemComponent>();
foreach (var entity in _entityLookupSystem.GetEntitiesInRange(args.ClickLocation, storageComp.AreaInsertRadius, LookupFlags.Dynamic | LookupFlags.Sundries))
{
if (entity == args.User
|| !itemQuery.HasComponent(entity)
|| !CanInsert(uid, entity, out _, storageComp)
|| !_interactionSystem.InRangeUnobstructed(args.User, entity))
continue;
validStorables.Add(entity);
}
//If there's only one then let's be generous
if (validStorables.Count > 1)
{
var doAfterArgs = new DoAfterArgs(args.User, 0.2f * validStorables.Count, new AreaPickupDoAfterEvent(validStorables), uid, target: uid)
{
BreakOnDamage = true,
BreakOnUserMove = true,
NeedHand = true
};
_doAfterSystem.TryStartDoAfter(doAfterArgs);
}
return;
}
// Pick up the clicked entity
if (storageComp.QuickInsert)
{
if (args.Target is not {Valid: true} target)
return;
if (_containerSystem.IsEntityInContainer(target)
|| target == args.User
|| !HasComp<ItemComponent>(target))
return;
if (TryComp<TransformComponent>(uid, out var transformOwner) && TryComp<TransformComponent>(target, out var transformEnt))
{
var parent = transformOwner.ParentUid;
var position = EntityCoordinates.FromMap(
parent.IsValid() ? parent : uid,
transformEnt.MapPosition);
if (PlayerInsertEntityInWorld(uid, args.User, target, storageComp))
{
RaiseNetworkEvent(new AnimateInsertingEntitiesEvent(uid,
new List<EntityUid> { target },
new List<EntityCoordinates> { position }));
}
}
}
}
private void OnDoAfter(EntityUid uid, ServerStorageComponent component, AreaPickupDoAfterEvent args)
{
if (args.Handled || args.Cancelled)
return;
var successfullyInserted = new List<EntityUid>();
var successfullyInsertedPositions = new List<EntityCoordinates>();
var itemQuery = GetEntityQuery<ItemComponent>();
var xformQuery = GetEntityQuery<TransformComponent>();
xformQuery.TryGetComponent(uid, out var xform);
foreach (var entity in args.Entities)
{
// Check again, situation may have changed for some entities, but we'll still pick up any that are valid
if (_containerSystem.IsEntityInContainer(entity)
|| entity == args.Args.User
|| !itemQuery.HasComponent(entity))
continue;
if (xform == null ||
!xformQuery.TryGetComponent(entity, out var targetXform) ||
targetXform.MapID != xform.MapID)
{
continue;
}
var position = EntityCoordinates.FromMap(
xform.ParentUid.IsValid() ? xform.ParentUid : uid,
new MapCoordinates(_transform.GetWorldPosition(targetXform, xformQuery),
targetXform.MapID), EntityManager);
if (PlayerInsertEntityInWorld(uid, args.Args.User, entity, component))
{
successfullyInserted.Add(entity);
successfullyInsertedPositions.Add(position);
}
}
// If we picked up atleast one thing, play a sound and do a cool animation!
if (successfullyInserted.Count > 0)
{
_audio.PlayPvs(component.StorageInsertSound, uid);
RaiseNetworkEvent(new AnimateInsertingEntitiesEvent(uid, successfullyInserted, successfullyInsertedPositions));
}
args.Handled = true;
}
private void OnDestroy(EntityUid uid, ServerStorageComponent storageComp, DestructionEventArgs args)
{
var storedEntities = storageComp.StoredEntities?.ToList();
if (storedEntities == null)
return;
foreach (var entity in storedEntities)
{
RemoveAndDrop(uid, entity, storageComp);
}
}
/// <summary>
/// This function gets called when the user clicked on an item in the storage UI. This will either place the
/// item in the user's hand if it is currently empty, or interact with the item using the user's currently
/// held item.
/// </summary>
private void OnInteractWithItem(EntityUid uid, ServerStorageComponent storageComp, StorageInteractWithItemEvent args)
{
// TODO move this to shared for prediction.
if (args.Session.AttachedEntity is not EntityUid player)
return;
if (!Exists(args.InteractedItemUID))
{
Logger.Error($"Player {args.Session} interacted with non-existent item {args.InteractedItemUID} stored in {ToPrettyString(uid)}");
return;
}
if (!_actionBlockerSystem.CanInteract(player, args.InteractedItemUID) || storageComp.Storage == null || !storageComp.Storage.Contains(args.InteractedItemUID))
return;
// Does the player have hands?
if (!TryComp(player, out HandsComponent? hands) || hands.Count == 0)
return;
// If the user's active hand is empty, try pick up the item.
if (hands.ActiveHandEntity == null)
{
if (_sharedHandsSystem.TryPickupAnyHand(player, args.InteractedItemUID, handsComp: hands)
&& storageComp.StorageRemoveSound != null)
_audio.Play(storageComp.StorageRemoveSound, Filter.Pvs(uid, entityManager: EntityManager), uid, true, AudioParams.Default);
return;
}
// Else, interact using the held item
_interactionSystem.InteractUsing(player, hands.ActiveHandEntity.Value, args.InteractedItemUID, Transform(args.InteractedItemUID).Coordinates, checkCanInteract: false);
}
private void OnInsertItemMessage(EntityUid uid, ServerStorageComponent storageComp, StorageInsertItemMessage args)
{
// TODO move this to shared for prediction.
if (args.Session.AttachedEntity == null)
return;
PlayerInsertHeldEntity(uid, args.Session.AttachedEntity.Value, storageComp);
}
private void OnBoundUIOpen(EntityUid uid, ServerStorageComponent storageComp, BoundUIOpenedEvent args)
{
if (!storageComp.IsOpen)
{
storageComp.IsOpen = true;
UpdateStorageVisualization(uid, storageComp);
}
}
private void OnBoundUIClosed(EntityUid uid, ServerStorageComponent storageComp, BoundUIClosedEvent args)
{
if (TryComp<ActorComponent>(args.Session.AttachedEntity, out var actor) && actor?.PlayerSession != null)
CloseNestedInterfaces(uid, actor.PlayerSession, storageComp);
// If UI is closed for everyone
if (!_uiSystem.IsUiOpen(uid, args.UiKey))
{
storageComp.IsOpen = false;
UpdateStorageVisualization(uid, storageComp);
if (storageComp.StorageCloseSound is not null)
_audio.Play(storageComp.StorageCloseSound, Filter.Pvs(uid, entityManager: EntityManager), uid, true, storageComp.StorageCloseSound.Params);
}
}
private void OnStorageItemRemoved(EntityUid uid, ServerStorageComponent storageComp, EntRemovedFromContainerMessage args)
{
RecalculateStorageUsed(storageComp);
UpdateStorageUI(uid, storageComp);
}
private void UpdateStorageVisualization(EntityUid uid, ServerStorageComponent storageComp)
{
if (!TryComp<AppearanceComponent>(uid, out var appearance))
return;
_appearance.SetData(uid, StorageVisuals.Open, storageComp.IsOpen, appearance);
_appearance.SetData(uid, SharedBagOpenVisuals.BagState, storageComp.IsOpen ? SharedBagState.Open : SharedBagState.Closed);
if (HasComp<ItemCounterComponent>(uid))
_appearance.SetData(uid, StackVisuals.Hide, !storageComp.IsOpen);
}
private void RecalculateStorageUsed(ServerStorageComponent storageComp)
{
storageComp.StorageUsed = 0;
storageComp.SizeCache.Clear();
if (storageComp.Storage == null)
return;
var itemQuery = GetEntityQuery<ItemComponent>();
foreach (var entity in storageComp.Storage.ContainedEntities)
{
if (!itemQuery.TryGetComponent(entity, out var itemComp))
continue;
storageComp.StorageUsed += itemComp.Size;
storageComp.SizeCache.Add(entity, itemComp.Size);
}
}
/// <summary>
/// Move entities from one storage to another.
/// </summary>
public void TransferEntities(EntityUid source, EntityUid target,
ServerStorageComponent? sourceComp = null, LockComponent? sourceLock = null,
ServerStorageComponent? targetComp = null, LockComponent? targetLock = null)
{
if (!Resolve(source, ref sourceComp) || !Resolve(target, ref targetComp))
return;
var entities = sourceComp.Storage?.ContainedEntities;
if (entities == null || entities.Count == 0)
return;
if (Resolve(source, ref sourceLock, false) && sourceLock.Locked
|| Resolve(target, ref targetLock, false) && targetLock.Locked)
return;
foreach (var entity in entities.ToList())
{
Insert(target, entity, targetComp);
}
RecalculateStorageUsed(sourceComp);
UpdateStorageUI(source, sourceComp);
}
/// <summary>
/// Verifies if an entity can be stored and if it fits
/// </summary>
/// <param name="entity">The entity to check</param>
/// <param name="reason">If returning false, the reason displayed to the player</param>
/// <returns>true if it can be inserted, false otherwise</returns>
public bool CanInsert(EntityUid uid, EntityUid insertEnt, out string? reason, ServerStorageComponent? storageComp = null)
{
if (!Resolve(uid, ref storageComp))
{
reason = null;
return false;
}
if (TryComp(insertEnt, out TransformComponent? transformComp) && transformComp.Anchored)
{
reason = "comp-storage-anchored-failure";
return false;
}
if (storageComp.Whitelist?.IsValid(insertEnt, EntityManager) == false)
{
reason = "comp-storage-invalid-container";
return false;
}
if (storageComp.Blacklist?.IsValid(insertEnt, EntityManager) == true)
{
reason = "comp-storage-invalid-container";
return false;
}
if (TryComp(insertEnt, out ServerStorageComponent? storage) &&
storage.StorageCapacityMax >= storageComp.StorageCapacityMax)
{
reason = "comp-storage-insufficient-capacity";
return false;
}
if (TryComp(insertEnt, out ItemComponent? itemComp) &&
itemComp.Size > storageComp.StorageCapacityMax - storageComp.StorageUsed)
{
reason = "comp-storage-insufficient-capacity";
return false;
}
reason = null;
return true;
}
/// <summary>
/// Inserts into the storage container
/// </summary>
/// <returns>true if the entity was inserted, false otherwise</returns>
public bool Insert(EntityUid uid, EntityUid insertEnt, ServerStorageComponent? storageComp = null, bool playSound = true)
{
if (!Resolve(uid, ref storageComp) || !CanInsert(uid, insertEnt, out _, storageComp) || storageComp.Storage?.Insert(insertEnt) == false)
return false;
if (playSound && storageComp.StorageInsertSound is not null)
_audio.PlayPvs(storageComp.StorageInsertSound, uid);
RecalculateStorageUsed(storageComp);
UpdateStorageUI(uid, storageComp);
return true;
}
// REMOVE: remove and drop on the ground
public bool RemoveAndDrop(EntityUid uid, EntityUid removeEnt, ServerStorageComponent? storageComp = null)
{
if (!Resolve(uid, ref storageComp))
return false;
var itemRemoved = storageComp.Storage?.Remove(removeEnt) == true;
if (itemRemoved)
RecalculateStorageUsed(storageComp);
return itemRemoved;
}
/// <summary>
/// Inserts an entity into storage from the player's active hand
/// </summary>
/// <param name="player">The player to insert an entity from</param>
/// <returns>true if inserted, false otherwise</returns>
public bool PlayerInsertHeldEntity(EntityUid uid, EntityUid player, ServerStorageComponent? storageComp = null)
{
if (!Resolve(uid, ref storageComp) || !TryComp(player, out HandsComponent? hands) || hands.ActiveHandEntity == null)
return false;
var toInsert = hands.ActiveHandEntity;
if (!CanInsert(uid, toInsert.Value, out var reason, storageComp) || !_sharedHandsSystem.TryDrop(player, toInsert.Value, handsComp: hands))
{
Popup(uid, player, reason ?? "comp-storage-cant-insert", storageComp);
return false;
}
return PlayerInsertEntityInWorld(uid, player, toInsert.Value, storageComp);
}
/// <summary>
/// Inserts an Entity (<paramref name="toInsert"/>) in the world into storage, informing <paramref name="player"/> if it fails.
/// <paramref name="toInsert"/> is *NOT* held, see <see cref="PlayerInsertHeldEntity(Robust.Shared.GameObjects.EntityUid)"/>.
/// </summary>
/// <param name="player">The player to insert an entity with</param>
/// <returns>true if inserted, false otherwise</returns>
public bool PlayerInsertEntityInWorld(EntityUid uid, EntityUid player, EntityUid toInsert, ServerStorageComponent? storageComp = null)
{
if (!Resolve(uid, ref storageComp) || !_sharedInteractionSystem.InRangeUnobstructed(player, uid, popup: storageComp.ShowPopup))
return false;
if (!Insert(uid, toInsert, storageComp))
{
Popup(uid, player, "comp-storage-cant-insert", storageComp);
return false;
}
return true;
}
/// <summary>
/// Opens the storage UI for an entity
/// </summary>
/// <param name="entity">The entity to open the UI for</param>
public void OpenStorageUI(EntityUid uid, EntityUid entity, ServerStorageComponent? storageComp = null, bool silent = false)
{
if (!Resolve(uid, ref storageComp) || !TryComp(entity, out ActorComponent? player))
return;
// prevent spamming bag open / honkerton honk sound
silent |= TryComp<UseDelayComponent>(uid, out var useDelay) && _useDelay.ActiveDelay(uid, useDelay);
if (!silent)
{
_audio.PlayPvs(storageComp.StorageOpenSound, uid);
if (useDelay != null)
_useDelay.BeginDelay(uid, useDelay);
}
Logger.DebugS(storageComp.LoggerName, $"Storage (UID {uid}) \"used\" by player session (UID {player.PlayerSession.AttachedEntity}).");
var bui = _uiSystem.GetUiOrNull(uid, StorageUiKey.Key);
if (bui != null)
_uiSystem.OpenUi(bui, player.PlayerSession);
}
/// <summary>
/// If the user has nested-UIs open (e.g., PDA UI open when pda is in a backpack), close them.
/// </summary>
/// <param name="session"></param>
public void CloseNestedInterfaces(EntityUid uid, IPlayerSession session, ServerStorageComponent? storageComp = null)
{
if (!Resolve(uid, ref storageComp) || storageComp.StoredEntities == null)
return;
// for each containing thing
// if it has a storage comp
// ensure unsubscribe from session
// if it has a ui component
// close ui
foreach (var entity in storageComp.StoredEntities)
{
if (TryComp(entity, out ServerStorageComponent? storedStorageComp))
DebugTools.Assert(storedStorageComp != storageComp, $"Storage component contains itself!? Entity: {uid}");
if (!TryComp(entity, out ServerUserInterfaceComponent? ui))
continue;
foreach (var bui in ui.Interfaces.Values)
{
_uiSystem.TryClose(entity, bui.UiKey, session, ui);
}
}
}
private void UpdateStorageUI(EntityUid uid, ServerStorageComponent storageComp)
{
if (storageComp.Storage == null)
return;
var state = new StorageBoundUserInterfaceState((List<EntityUid>) storageComp.Storage.ContainedEntities, storageComp.StorageUsed, storageComp.StorageCapacityMax);
var bui = _uiSystem.GetUiOrNull(uid, StorageUiKey.Key);
if (bui != null)
_uiSystem.SetUiState(bui, state);
}
private void Popup(EntityUid uid, EntityUid player, string message, ServerStorageComponent storageComp)
{
if (!storageComp.ShowPopup)
return;
_popupSystem.PopupEntity(Loc.GetString(message), player, player);
}
}
}