117 lines
4.6 KiB
C#
117 lines
4.6 KiB
C#
using Content.Server.DoAfter;
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using Content.Server.Contests;
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using Robust.Shared.Containers;
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using Content.Server.Popups;
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using Robust.Shared.Player;
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using Content.Shared.Storage;
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using Content.Shared.Inventory;
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using Content.Shared.Hands.EntitySystems;
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using Content.Shared.ActionBlocker;
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using Content.Shared.Movement.Events;
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using Content.Shared.Interaction.Events;
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namespace Content.Server.Resist;
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public sealed class EscapeInventorySystem : EntitySystem
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{
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[Dependency] private readonly DoAfterSystem _doAfterSystem = default!;
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[Dependency] private readonly PopupSystem _popupSystem = default!;
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[Dependency] private readonly SharedContainerSystem _containerSystem = default!;
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[Dependency] private readonly ActionBlockerSystem _actionBlockerSystem = default!;
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[Dependency] private readonly SharedHandsSystem _handsSystem = default!;
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[Dependency] private readonly ContestsSystem _contests = default!;
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/// <summary>
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/// You can't escape the hands of an entity this many times more massive than you.
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/// </summary>
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public const float MaximumMassDisadvantage = 6f;
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public override void Initialize()
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{
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base.Initialize();
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SubscribeLocalEvent<CanEscapeInventoryComponent, MoveInputEvent>(OnRelayMovement);
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SubscribeLocalEvent<CanEscapeInventoryComponent, UpdateCanMoveEvent>(OnMoveAttempt);
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SubscribeLocalEvent<CanEscapeInventoryComponent, EscapeDoAfterComplete>(OnEscapeComplete);
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SubscribeLocalEvent<CanEscapeInventoryComponent, EscapeDoAfterCancel>(OnEscapeFail);
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SubscribeLocalEvent<CanEscapeInventoryComponent, DroppedEvent>(OnDropped);
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}
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private void OnRelayMovement(EntityUid uid, CanEscapeInventoryComponent component, ref MoveInputEvent args)
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{
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if (component.CancelToken != null)
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return;
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if (!_containerSystem.TryGetContainingContainer(uid, out var container) || !_actionBlockerSystem.CanInteract(uid, container.Owner))
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return;
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// Contested
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if (_handsSystem.IsHolding(container.Owner, uid, out var inHand))
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{
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var contestResults = _contests.MassContest(uid, container.Owner);
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// Inverse if we aren't going to divide by 0, otherwise just use a default multiplier of 1.
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if (contestResults != 0)
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contestResults = 1 / contestResults;
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else
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contestResults = 1;
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if (contestResults >= MaximumMassDisadvantage)
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return;
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AttemptEscape(uid, container.Owner, component, contestResults);
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return;
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}
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// Uncontested
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if (HasComp<SharedStorageComponent>(container.Owner) || HasComp<InventoryComponent>(container.Owner))
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AttemptEscape(uid, container.Owner, component);
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}
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private void OnMoveAttempt(EntityUid uid, CanEscapeInventoryComponent component, UpdateCanMoveEvent args)
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{
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if (_containerSystem.IsEntityOrParentInContainer(uid))
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args.Cancel();
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}
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private void AttemptEscape(EntityUid user, EntityUid container, CanEscapeInventoryComponent component, float multiplier = 1f)
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{
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component.CancelToken = new();
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var doAfterEventArgs = new DoAfterEventArgs(user, component.BaseResistTime * multiplier, component.CancelToken.Token, container)
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{
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BreakOnTargetMove = false,
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BreakOnUserMove = false,
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BreakOnDamage = true,
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BreakOnStun = true,
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NeedHand = false,
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UserFinishedEvent = new EscapeDoAfterComplete(),
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UserCancelledEvent = new EscapeDoAfterCancel(),
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};
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_popupSystem.PopupEntity(Loc.GetString("escape-inventory-component-start-resisting"), user, Filter.Entities(user));
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_popupSystem.PopupEntity(Loc.GetString("escape-inventory-component-start-resisting-target"), container, Filter.Entities(container));
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_doAfterSystem.DoAfter(doAfterEventArgs);
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}
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private void OnEscapeComplete(EntityUid uid, CanEscapeInventoryComponent component, EscapeDoAfterComplete ev)
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{
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//Drops the mob on the tile below the container
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Transform(uid).AttachParentToContainerOrGrid(EntityManager);
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component.CancelToken = null;
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}
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private void OnEscapeFail(EntityUid uid, CanEscapeInventoryComponent component, EscapeDoAfterCancel ev)
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{
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component.CancelToken = null;
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}
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private void OnDropped(EntityUid uid, CanEscapeInventoryComponent component, DroppedEvent args)
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{
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component.CancelToken?.Cancel();
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}
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private sealed class EscapeDoAfterComplete : EntityEventArgs { }
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private sealed class EscapeDoAfterCancel : EntityEventArgs { }
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}
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