Files
tbd-station-14/Content.Server/Construction/AnchorableSystem.cs
2022-12-19 08:41:47 +11:00

296 lines
12 KiB
C#

using System.Threading;
using Content.Server.Administration.Logs;
using Content.Server.Coordinates.Helpers;
using Content.Server.Popups;
using Content.Server.Pulling;
using Content.Server.Tools;
using Content.Shared.Construction.Components;
using Content.Shared.Construction.EntitySystems;
using Content.Shared.Database;
using Content.Shared.Examine;
using Content.Shared.Pulling.Components;
using Content.Shared.Tools.Components;
using Robust.Shared.Map;
using Robust.Shared.Physics;
using Robust.Shared.Physics.Components;
using Robust.Shared.Player;
namespace Content.Server.Construction
{
public sealed class AnchorableSystem : SharedAnchorableSystem
{
[Dependency] private readonly IAdminLogManager _adminLogger = default!;
[Dependency] private readonly IMapManager _mapManager = default!;
[Dependency] private readonly PopupSystem _popup = default!;
[Dependency] private readonly ToolSystem _tool = default!;
[Dependency] private readonly PullingSystem _pulling = default!;
public override void Initialize()
{
base.Initialize();
SubscribeLocalEvent<AnchorableComponent, TryAnchorCompletedEvent>(OnAnchorComplete);
SubscribeLocalEvent<AnchorableComponent, TryAnchorCancelledEvent>(OnAnchorCancelled);
SubscribeLocalEvent<AnchorableComponent, TryUnanchorCompletedEvent>(OnUnanchorComplete);
SubscribeLocalEvent<AnchorableComponent, TryUnanchorCancelledEvent>(OnUnanchorCancelled);
SubscribeLocalEvent<AnchorableComponent, ExaminedEvent>(OnAnchoredExamine);
}
private void OnAnchoredExamine(EntityUid uid, AnchorableComponent component, ExaminedEvent args)
{
var isAnchored = Comp<TransformComponent>(uid).Anchored;
var messageId = isAnchored ? "examinable-anchored" : "examinable-unanchored";
args.PushMarkup(Loc.GetString(messageId, ("target", uid)));
}
private void OnUnanchorCancelled(EntityUid uid, AnchorableComponent component, TryUnanchorCancelledEvent args)
{
component.CancelToken = null;
}
private void OnUnanchorComplete(EntityUid uid, AnchorableComponent component, TryUnanchorCompletedEvent args)
{
component.CancelToken = null;
var xform = Transform(uid);
RaiseLocalEvent(uid, new BeforeUnanchoredEvent(args.User, args.Using));
xform.Anchored = false;
RaiseLocalEvent(uid, new UserUnanchoredEvent(args.User, args.Using));
_popup.PopupEntity(Loc.GetString("anchorable-unanchored"), uid);
_adminLogger.Add(
LogType.Unanchor,
LogImpact.Low,
$"{EntityManager.ToPrettyString(args.User):user} unanchored {EntityManager.ToPrettyString(uid):anchored} using {EntityManager.ToPrettyString(args.Using):using}"
);
}
private void OnAnchorCancelled(EntityUid uid, AnchorableComponent component, TryAnchorCancelledEvent args)
{
component.CancelToken = null;
}
private void OnAnchorComplete(EntityUid uid, AnchorableComponent component, TryAnchorCompletedEvent args)
{
component.CancelToken = null;
var xform = Transform(uid);
if (TryComp<PhysicsComponent>(uid, out var anchorBody) &&
!TileFree(xform.Coordinates, anchorBody))
{
_popup.PopupEntity(Loc.GetString("anchorable-occupied"), uid, args.User);
return;
}
// Snap rotation to cardinal (multiple of 90)
var rot = xform.LocalRotation;
xform.LocalRotation = Math.Round(rot / (Math.PI / 2)) * (Math.PI / 2);
if (TryComp<SharedPullableComponent>(uid, out var pullable) && pullable.Puller != null)
{
_pulling.TryStopPull(pullable);
}
// TODO: Anchoring snaps rn anyway!
if (component.Snap)
xform.Coordinates = xform.Coordinates.SnapToGrid(EntityManager, _mapManager);
RaiseLocalEvent(uid, new BeforeAnchoredEvent(args.User, args.Using));
xform.Anchored = true;
RaiseLocalEvent(uid, new UserAnchoredEvent(args.User, args.Using));
_popup.PopupEntity(Loc.GetString("anchorable-anchored"), uid);
_adminLogger.Add(
LogType.Anchor,
LogImpact.Low,
$"{EntityManager.ToPrettyString(args.User):user} anchored {EntityManager.ToPrettyString(uid):anchored} using {EntityManager.ToPrettyString(args.Using):using}"
);
}
private bool TileFree(EntityCoordinates coordinates, PhysicsComponent anchorBody)
{
// Probably ignore CanCollide on the anchoring body?
var gridUid = coordinates.GetGridUid(EntityManager);
if (!_mapManager.TryGetGrid(gridUid, out var grid))
return false;
var tileIndices = grid.TileIndicesFor(coordinates);
var enumerator = grid.GetAnchoredEntitiesEnumerator(tileIndices);
var bodyQuery = GetEntityQuery<PhysicsComponent>();
while (enumerator.MoveNext(out var ent))
{
if (!bodyQuery.TryGetComponent(ent, out var body) ||
!body.CanCollide ||
(!body.Hard && body.BodyType != BodyType.Static))
{
continue;
}
if ((body.CollisionMask & anchorBody.CollisionLayer) != 0x0 ||
(body.CollisionLayer & anchorBody.CollisionMask) != 0x0)
{
return false;
}
}
return true;
}
/// <summary>
/// Checks if a tool can change the anchored status.
/// </summary>
/// <returns>true if it is valid, false otherwise</returns>
private bool Valid(EntityUid uid, EntityUid userUid, EntityUid usingUid, bool anchoring, AnchorableComponent? anchorable = null, ToolComponent? usingTool = null)
{
if (!Resolve(uid, ref anchorable) ||
anchorable.CancelToken != null)
return false;
if (!Resolve(usingUid, ref usingTool))
return false;
BaseAnchoredAttemptEvent attempt =
anchoring ? new AnchorAttemptEvent(userUid, usingUid) : new UnanchorAttemptEvent(userUid, usingUid);
// Need to cast the event or it will be raised as BaseAnchoredAttemptEvent.
if (anchoring)
RaiseLocalEvent(uid, (AnchorAttemptEvent) attempt);
else
RaiseLocalEvent(uid, (UnanchorAttemptEvent) attempt);
anchorable.Delay += attempt.Delay;
return !attempt.Cancelled;
}
/// <summary>
/// Tries to anchor the entity.
/// </summary>
/// <returns>true if anchored, false otherwise</returns>
private void TryAnchor(EntityUid uid, EntityUid userUid, EntityUid usingUid,
AnchorableComponent? anchorable = null,
TransformComponent? transform = null,
SharedPullableComponent? pullable = null,
ToolComponent? usingTool = null)
{
if (!Resolve(uid, ref anchorable, ref transform))
return;
// Optional resolves.
Resolve(uid, ref pullable, false);
if (!Resolve(usingUid, ref usingTool))
return;
if (!Valid(uid, userUid, usingUid, true, anchorable, usingTool))
return;
if (TryComp<PhysicsComponent>(uid, out var anchorBody) &&
!TileFree(transform.Coordinates, anchorBody))
{
_popup.PopupEntity(Loc.GetString("anchorable-occupied"), uid, userUid);
return;
}
anchorable.CancelToken = new CancellationTokenSource();
_tool.UseTool(usingUid, userUid, uid, 0f, anchorable.Delay, usingTool.Qualities,
new TryAnchorCompletedEvent(userUid, usingUid), new TryAnchorCancelledEvent(userUid, usingUid), uid, cancelToken: anchorable.CancelToken.Token);
}
/// <summary>
/// Tries to unanchor the entity.
/// </summary>
/// <returns>true if unanchored, false otherwise</returns>
private void TryUnAnchor(EntityUid uid, EntityUid userUid, EntityUid usingUid,
AnchorableComponent? anchorable = null,
TransformComponent? transform = null,
ToolComponent? usingTool = null)
{
if (!Resolve(uid, ref anchorable, ref transform) ||
anchorable.CancelToken != null)
return;
if (!Resolve(usingUid, ref usingTool)) return;
if (!Valid(uid, userUid, usingUid, false)) return;
anchorable.CancelToken = new CancellationTokenSource();
_tool.UseTool(usingUid, userUid, uid, 0f, anchorable.Delay, usingTool.Qualities,
new TryUnanchorCompletedEvent(userUid, usingUid), new TryUnanchorCancelledEvent(userUid, usingUid), uid, cancelToken: anchorable.CancelToken.Token);
}
/// <summary>
/// Tries to toggle the anchored status of this component's owner.
/// </summary>
/// <returns>true if toggled, false otherwise</returns>
public override void TryToggleAnchor(EntityUid uid, EntityUid userUid, EntityUid usingUid,
AnchorableComponent? anchorable = null,
TransformComponent? transform = null,
SharedPullableComponent? pullable = null,
ToolComponent? usingTool = null)
{
if (!Resolve(uid, ref transform))
return;
if (transform.Anchored)
{
TryUnAnchor(uid, userUid, usingUid, anchorable, transform, usingTool);
// Log unanchor attempt
_adminLogger.Add(LogType.Anchor, LogImpact.Low, $"{ToPrettyString(userUid):user} is trying to unanchor {ToPrettyString(uid):entity} from {transform.Coordinates:targetlocation}");
}
else
{
TryAnchor(uid, userUid, usingUid, anchorable, transform, pullable, usingTool);
// Log anchor attempt
_adminLogger.Add(LogType.Anchor, LogImpact.Low, $"{ToPrettyString(userUid):user} is trying to anchor {ToPrettyString(uid):entity} to {transform.Coordinates:targetlocation}");
}
}
private abstract class AnchorEvent : EntityEventArgs
{
public EntityUid User;
public EntityUid Using;
protected AnchorEvent(EntityUid userUid, EntityUid usingUid)
{
User = userUid;
Using = usingUid;
}
}
private sealed class TryUnanchorCompletedEvent : AnchorEvent
{
public TryUnanchorCompletedEvent(EntityUid userUid, EntityUid usingUid) : base(userUid, usingUid)
{
}
}
private sealed class TryUnanchorCancelledEvent : AnchorEvent
{
public TryUnanchorCancelledEvent(EntityUid userUid, EntityUid usingUid) : base(userUid, usingUid)
{
}
}
private sealed class TryAnchorCompletedEvent : AnchorEvent
{
public TryAnchorCompletedEvent(EntityUid userUid, EntityUid usingUid) : base(userUid, usingUid)
{
}
}
private sealed class TryAnchorCancelledEvent : AnchorEvent
{
public TryAnchorCancelledEvent(EntityUid userUid, EntityUid usingUid) : base(userUid, usingUid)
{
}
}
}
}