Files
tbd-station-14/Content.Server/GameObjects/EntitySystems/BuckleSystem.cs
DTanxxx 69d709a28f Updated ContainerHelpers to use new extensions (#2530)
Co-authored-by: David Tan <>
2020-11-13 18:25:04 +11:00

105 lines
3.1 KiB
C#

#nullable enable
using Content.Server.GameObjects.Components.Buckle;
using Content.Server.GameObjects.Components.Strap;
using Content.Server.GameObjects.EntitySystems.Click;
using JetBrains.Annotations;
using Robust.Server.GameObjects.EntitySystemMessages;
using Robust.Server.GameObjects.EntitySystems;
using Robust.Shared.Containers;
using Robust.Shared.GameObjects.Components.Transform;
using Robust.Shared.GameObjects.Systems;
namespace Content.Server.GameObjects.EntitySystems
{
[UsedImplicitly]
internal sealed class BuckleSystem : EntitySystem
{
public override void Initialize()
{
base.Initialize();
UpdatesAfter.Add(typeof(InteractionSystem));
UpdatesAfter.Add(typeof(InputSystem));
SubscribeLocalEvent<MoveEvent>(MoveEvent);
SubscribeLocalEvent<EntInsertedIntoContainerMessage>(ContainerModified);
SubscribeLocalEvent<EntRemovedFromContainerMessage>(ContainerModified);
}
public override void Shutdown()
{
base.Shutdown();
UnsubscribeLocalEvent<MoveEvent>();
}
private void MoveEvent(MoveEvent ev)
{
if (!ev.Sender.TryGetComponent(out BuckleComponent? buckle))
{
return;
}
var strap = buckle.BuckledTo;
if (strap == null)
{
return;
}
var strapPosition = strap.Owner.Transform.Coordinates.Offset(buckle.BuckleOffset);
if (ev.NewPosition.InRange(EntityManager, strapPosition, 0.2f))
{
return;
}
buckle.TryUnbuckle(buckle.Owner, true);
}
private void ContainerModified(ContainerModifiedMessage message)
{
// Not returning is necessary in case an entity has both a buckle and strap component
if (message.Entity.TryGetComponent(out BuckleComponent? buckle))
{
ContainerModifiedReAttach(buckle, buckle.BuckledTo);
}
if (message.Entity.TryGetComponent(out StrapComponent? strap))
{
foreach (var buckledEntity in strap.BuckledEntities)
{
if (!buckledEntity.TryGetComponent(out BuckleComponent? buckled))
{
continue;
}
ContainerModifiedReAttach(buckled, strap);
}
}
}
private void ContainerModifiedReAttach(BuckleComponent buckle, StrapComponent? strap)
{
if (strap == null)
{
return;
}
var contained = buckle.Owner.TryGetContainer(out var ownContainer);
var strapContained = strap.Owner.TryGetContainer(out var strapContainer);
if (contained != strapContained || ownContainer != strapContainer)
{
buckle.TryUnbuckle(buckle.Owner, true);
return;
}
if (!contained)
{
buckle.ReAttach(strap);
}
}
}
}