Files
tbd-station-14/Content.Server/Atmos/EntitySystems/GasTankSystem.cs
2023-10-29 15:29:30 +11:00

388 lines
14 KiB
C#

using Content.Server.Atmos.Components;
using Content.Server.Body.Components;
using Content.Server.Body.Systems;
using Content.Server.Cargo.Systems;
using Content.Server.Explosion.EntitySystems;
using Content.Server.UserInterface;
using Content.Shared.Actions;
using Content.Shared.Atmos;
using Content.Shared.Atmos.Components;
using Content.Shared.Examine;
using Content.Shared.Toggleable;
using Content.Shared.Verbs;
using JetBrains.Annotations;
using Robust.Server.GameObjects;
using Robust.Shared.Audio;
using Robust.Shared.Containers;
using Robust.Shared.Physics.Systems;
using Robust.Shared.Player;
using Robust.Shared.Random;
namespace Content.Server.Atmos.EntitySystems
{
[UsedImplicitly]
public sealed class GasTankSystem : EntitySystem
{
[Dependency] private readonly AtmosphereSystem _atmosphereSystem = default!;
[Dependency] private readonly ExplosionSystem _explosions = default!;
[Dependency] private readonly InternalsSystem _internals = default!;
[Dependency] private readonly SharedAudioSystem _audioSys = default!;
[Dependency] private readonly SharedContainerSystem _containers = default!;
[Dependency] private readonly SharedActionsSystem _actions = default!;
[Dependency] private readonly UserInterfaceSystem _ui = default!;
[Dependency] private readonly SharedPhysicsSystem _physics = default!;
[Dependency] private readonly IRobustRandom _random = default!;
private const float TimerDelay = 0.5f;
private float _timer = 0f;
public override void Initialize()
{
base.Initialize();
SubscribeLocalEvent<GasTankComponent, ComponentShutdown>(OnGasShutdown);
SubscribeLocalEvent<GasTankComponent, BeforeActivatableUIOpenEvent>(BeforeUiOpen);
SubscribeLocalEvent<GasTankComponent, GetItemActionsEvent>(OnGetActions);
SubscribeLocalEvent<GasTankComponent, ExaminedEvent>(OnExamined);
SubscribeLocalEvent<GasTankComponent, ToggleActionEvent>(OnActionToggle);
SubscribeLocalEvent<GasTankComponent, EntParentChangedMessage>(OnParentChange);
SubscribeLocalEvent<GasTankComponent, GasTankSetPressureMessage>(OnGasTankSetPressure);
SubscribeLocalEvent<GasTankComponent, GasTankToggleInternalsMessage>(OnGasTankToggleInternals);
SubscribeLocalEvent<GasTankComponent, GasAnalyzerScanEvent>(OnAnalyzed);
SubscribeLocalEvent<GasTankComponent, PriceCalculationEvent>(OnGasTankPrice);
SubscribeLocalEvent<GasTankComponent, GetVerbsEvent<AlternativeVerb>>(OnGetAlternativeVerb);
}
private void OnGasShutdown(Entity<GasTankComponent> gasTank, ref ComponentShutdown args)
{
DisconnectFromInternals(gasTank);
}
private void OnGasTankToggleInternals(Entity<GasTankComponent> ent, ref GasTankToggleInternalsMessage args)
{
ToggleInternals(ent);
}
private void OnGasTankSetPressure(Entity<GasTankComponent> ent, ref GasTankSetPressureMessage args)
{
var pressure = Math.Min(args.Pressure, ent.Comp.MaxOutputPressure);
ent.Comp.OutputPressure = pressure;
UpdateUserInterface(ent, true);
}
public void UpdateUserInterface(Entity<GasTankComponent> ent, bool initialUpdate = false)
{
var (owner, component) = ent;
_ui.TrySetUiState(owner, SharedGasTankUiKey.Key,
new GasTankBoundUserInterfaceState
{
TankPressure = component.Air?.Pressure ?? 0,
OutputPressure = initialUpdate ? component.OutputPressure : null,
InternalsConnected = component.IsConnected,
CanConnectInternals = CanConnectToInternals(component)
});
}
private void BeforeUiOpen(Entity<GasTankComponent> ent, ref BeforeActivatableUIOpenEvent args)
{
// Only initial update includes output pressure information, to avoid overwriting client-input as the updates come in.
UpdateUserInterface(ent, true);
}
private void OnParentChange(EntityUid uid, GasTankComponent component, ref EntParentChangedMessage args)
{
// When an item is moved from hands -> pockets, the container removal briefly dumps the item on the floor.
// So this is a shitty fix, where the parent check is just delayed. But this really needs to get fixed
// properly at some point.
component.CheckUser = true;
}
private void OnGetActions(EntityUid uid, GasTankComponent component, GetItemActionsEvent args)
{
args.AddAction(ref component.ToggleActionEntity, component.ToggleAction);
}
private void OnExamined(EntityUid uid, GasTankComponent component, ExaminedEvent args)
{
if (args.IsInDetailsRange)
args.PushMarkup(Loc.GetString("comp-gas-tank-examine", ("pressure", Math.Round(component.Air?.Pressure ?? 0))));
if (component.IsConnected)
args.PushMarkup(Loc.GetString("comp-gas-tank-connected"));
args.PushMarkup(Loc.GetString(component.IsValveOpen ? "comp-gas-tank-examine-open-valve" : "comp-gas-tank-examine-closed-valve"));
}
private void OnActionToggle(Entity<GasTankComponent> gasTank, ref ToggleActionEvent args)
{
if (args.Handled)
return;
ToggleInternals(gasTank);
args.Handled = true;
}
public override void Update(float frameTime)
{
base.Update(frameTime);
_timer += frameTime;
if (_timer < TimerDelay)
return;
_timer -= TimerDelay;
var query = EntityQueryEnumerator<GasTankComponent>();
while (query.MoveNext(out var uid, out var comp))
{
var gasTank = (uid, comp);
if (comp.IsValveOpen && !comp.IsLowPressure)
{
ReleaseGas(gasTank);
}
if (comp.CheckUser)
{
comp.CheckUser = false;
if (Transform(uid).ParentUid != comp.User)
{
DisconnectFromInternals(gasTank);
continue;
}
}
if (comp.Air != null)
{
_atmosphereSystem.React(comp.Air, comp);
}
CheckStatus(gasTank);
if (_ui.IsUiOpen(uid, SharedGasTankUiKey.Key))
{
UpdateUserInterface(gasTank);
}
}
}
private void ReleaseGas(Entity<GasTankComponent> gasTank)
{
var removed = RemoveAirVolume(gasTank, gasTank.Comp.ValveOutputRate * TimerDelay);
var environment = _atmosphereSystem.GetContainingMixture(gasTank, false, true);
if (environment != null)
{
_atmosphereSystem.Merge(environment, removed);
}
var impulse = removed.TotalMoles * removed.Temperature;
_physics.ApplyLinearImpulse(gasTank, _random.NextAngle().ToWorldVec() * impulse);
_physics.ApplyAngularImpulse(gasTank, _random.NextFloat(-3f, 3f));
_audioSys.PlayPvs(gasTank.Comp.RuptureSound, gasTank);
}
private void ToggleInternals(Entity<GasTankComponent> ent)
{
if (ent.Comp.IsConnected)
{
DisconnectFromInternals(ent);
}
else
{
ConnectToInternals(ent);
}
}
public GasMixture? RemoveAir(Entity<GasTankComponent> gasTank, float amount)
{
var gas = gasTank.Comp.Air?.Remove(amount);
CheckStatus(gasTank);
return gas;
}
public GasMixture RemoveAirVolume(Entity<GasTankComponent> gasTank, float volume)
{
var component = gasTank.Comp;
if (component.Air == null)
return new GasMixture(volume);
var molesNeeded = component.OutputPressure * volume / (Atmospherics.R * component.Air.Temperature);
var air = RemoveAir(gasTank, molesNeeded);
if (air != null)
air.Volume = volume;
else
return new GasMixture(volume);
return air;
}
public bool CanConnectToInternals(GasTankComponent component)
{
var internals = GetInternalsComponent(component, component.User);
return internals != null && internals.BreathToolEntity != null && !component.IsValveOpen;
}
public void ConnectToInternals(Entity<GasTankComponent> ent)
{
var (owner, component) = ent;
if (component.IsConnected || !CanConnectToInternals(component))
return;
var internals = GetInternalsComponent(component);
if (internals == null)
return;
if (_internals.TryConnectTank((internals.Owner, internals), owner))
component.User = internals.Owner;
_actions.SetToggled(component.ToggleActionEntity, component.IsConnected);
// Couldn't toggle!
if (!component.IsConnected)
return;
component.ConnectStream?.Stop();
if (component.ConnectSound != null)
component.ConnectStream = _audioSys.PlayPvs(component.ConnectSound, owner);
UpdateUserInterface(ent);
}
public void DisconnectFromInternals(Entity<GasTankComponent> ent)
{
var (owner, component) = ent;
if (component.User == null)
return;
var internals = GetInternalsComponent(component);
component.User = null;
_actions.SetToggled(component.ToggleActionEntity, false);
_internals.DisconnectTank(internals);
component.DisconnectStream?.Stop();
if (component.DisconnectSound != null)
component.DisconnectStream = _audioSys.PlayPvs(component.DisconnectSound, owner);
UpdateUserInterface(ent);
}
private InternalsComponent? GetInternalsComponent(GasTankComponent component, EntityUid? owner = null)
{
owner ??= component.User;
if (Deleted(component.Owner))return null;
if (owner != null) return CompOrNull<InternalsComponent>(owner.Value);
return _containers.TryGetContainingContainer(component.Owner, out var container)
? CompOrNull<InternalsComponent>(container.Owner)
: null;
}
public void AssumeAir(Entity<GasTankComponent> ent, GasMixture giver)
{
_atmosphereSystem.Merge(ent.Comp.Air, giver);
CheckStatus(ent);
}
public void CheckStatus(Entity<GasTankComponent> ent)
{
var (owner, component) = ent;
if (component.Air == null)
return;
var pressure = component.Air.Pressure;
if (pressure > component.TankFragmentPressure)
{
// Give the gas a chance to build up more pressure.
for (var i = 0; i < 3; i++)
{
_atmosphereSystem.React(component.Air, component);
}
pressure = component.Air.Pressure;
var range = MathF.Sqrt((pressure - component.TankFragmentPressure) / component.TankFragmentScale);
// Let's cap the explosion, yeah?
// !1984
if (range > GasTankComponent.MaxExplosionRange)
{
range = GasTankComponent.MaxExplosionRange;
}
_explosions.TriggerExplosive(owner, radius: range);
return;
}
if (pressure > component.TankRupturePressure)
{
if (component.Integrity <= 0)
{
var environment = _atmosphereSystem.GetContainingMixture(owner, false, true);
if(environment != null)
_atmosphereSystem.Merge(environment, component.Air);
_audioSys.Play(component.RuptureSound, Filter.Pvs(owner), Transform(owner).Coordinates, true, AudioParams.Default.WithVariation(0.125f));
QueueDel(owner);
return;
}
component.Integrity--;
return;
}
if (pressure > component.TankLeakPressure)
{
if (component.Integrity <= 0)
{
var environment = _atmosphereSystem.GetContainingMixture(owner, false, true);
if (environment == null)
return;
var leakedGas = component.Air.RemoveRatio(0.25f);
_atmosphereSystem.Merge(environment, leakedGas);
}
else
{
component.Integrity--;
}
return;
}
if (component.Integrity < 3)
component.Integrity++;
}
/// <summary>
/// Returns the gas mixture for the gas analyzer
/// </summary>
private void OnAnalyzed(EntityUid uid, GasTankComponent component, GasAnalyzerScanEvent args)
{
args.GasMixtures = new Dictionary<string, GasMixture?> { {Name(uid), component.Air} };
}
private void OnGasTankPrice(EntityUid uid, GasTankComponent component, ref PriceCalculationEvent args)
{
args.Price += _atmosphereSystem.GetPrice(component.Air);
}
private void OnGetAlternativeVerb(EntityUid uid, GasTankComponent component, GetVerbsEvent<AlternativeVerb> args)
{
if (!args.CanAccess || !args.CanInteract || args.Hands == null)
return;
args.Verbs.Add(new AlternativeVerb()
{
Text = component.IsValveOpen ? Loc.GetString("comp-gas-tank-close-valve") : Loc.GetString("comp-gas-tank-open-valve"),
Act = () =>
{
component.IsValveOpen = !component.IsValveOpen;
_audioSys.PlayPvs(component.ValveSound, uid);
},
Disabled = component.IsConnected,
});
}
}
}