107 lines
4.3 KiB
C#
107 lines
4.3 KiB
C#
using Content.Server.Atmos.EntitySystems;
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using Content.Server.Atmos.Piping.Components;
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using Content.Server.NodeContainer;
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using Content.Server.NodeContainer.EntitySystems;
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using Content.Server.NodeContainer.Nodes;
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using Content.Server.Popups;
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using Content.Shared.Atmos;
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using Content.Shared.Construction.Components;
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using Content.Shared.Destructible;
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using Content.Shared.NodeContainer;
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using Content.Shared.Popups;
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using JetBrains.Annotations;
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namespace Content.Server.Atmos.Piping.EntitySystems
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{
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[UsedImplicitly]
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public sealed class AtmosUnsafeUnanchorSystem : EntitySystem
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{
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[Dependency] private readonly AtmosphereSystem _atmosphere = default!;
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[Dependency] private readonly NodeGroupSystem _group = default!;
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[Dependency] private readonly PopupSystem _popup = default!;
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public override void Initialize()
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{
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SubscribeLocalEvent<AtmosUnsafeUnanchorComponent, UserUnanchoredEvent>(OnUserUnanchored);
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SubscribeLocalEvent<AtmosUnsafeUnanchorComponent, UnanchorAttemptEvent>(OnUnanchorAttempt);
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SubscribeLocalEvent<AtmosUnsafeUnanchorComponent, BreakageEventArgs>(OnBreak);
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}
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private void OnUnanchorAttempt(EntityUid uid, AtmosUnsafeUnanchorComponent component, UnanchorAttemptEvent args)
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{
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if (!component.Enabled || !TryComp(uid, out NodeContainerComponent? nodes))
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return;
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if (_atmosphere.GetContainingMixture(uid, true) is not {} environment)
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return;
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foreach (var node in nodes.Nodes.Values)
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{
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if (node is not PipeNode pipe)
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continue;
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if (pipe.Air.Pressure - environment.Pressure > 2 * Atmospherics.OneAtmosphere)
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{
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args.Delay += 2f;
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_popup.PopupEntity(Loc.GetString("comp-atmos-unsafe-unanchor-warning"), pipe.Owner,
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args.User, PopupType.MediumCaution);
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return; // Show the warning only once.
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}
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}
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}
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// When unanchoring a pipe, leak the gas that was inside the pipe element.
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// At this point the pipe has been scheduled to be removed from the group, but that won't happen until the next Update() call in NodeGroupSystem,
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// so we have to force an update.
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// This way the gas inside other connected pipes stays unchanged, while the removed pipe is completely emptied.
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private void OnUserUnanchored(EntityUid uid, AtmosUnsafeUnanchorComponent component, UserUnanchoredEvent args)
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{
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if (component.Enabled)
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{
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_group.ForceUpdate();
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LeakGas(uid);
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}
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}
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private void OnBreak(EntityUid uid, AtmosUnsafeUnanchorComponent component, BreakageEventArgs args)
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{
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LeakGas(uid, false);
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// Can't use DoActsBehavior["Destruction"] in the same trigger because that would prevent us
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// from leaking. So we make up for this by queueing deletion here.
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QueueDel(uid);
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}
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/// <summary>
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/// Leak gas from the uid's NodeContainer into the tile atmosphere.
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/// Setting removeFromPipe to false will duplicate the gas inside the pipe intead of moving it.
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/// This is needed to properly handle the gas in the pipe getting deleted with the pipe.
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/// </summary>
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public void LeakGas(EntityUid uid, bool removeFromPipe = true)
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{
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if (!TryComp(uid, out NodeContainerComponent? nodes))
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return;
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if (_atmosphere.GetContainingMixture(uid, true, true) is not { } environment)
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environment = GasMixture.SpaceGas;
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var buffer = new GasMixture();
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foreach (var node in nodes.Nodes.Values)
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{
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if (node is not PipeNode pipe)
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continue;
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if (removeFromPipe)
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_atmosphere.Merge(buffer, pipe.Air.RemoveVolume(pipe.Volume));
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else
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{
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var copy = new GasMixture(pipe.Air); //clone, then remove to keep the original untouched
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_atmosphere.Merge(buffer, copy.RemoveVolume(pipe.Volume));
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}
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}
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_atmosphere.Merge(environment, buffer);
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}
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}
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}
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