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Add atmos time compression (#21954)

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Add atmos.speedup which is effectively a atmos-only time compression
CVar. This adjusts heat capacities and transfer rates to effectively
globally speed up the time constants of atmos.

This allows faster response to heating/cooling changes and faster
cleanups (by buffing scrubbers, pumps, and everything else) that is
tunable through one global time compression CVar.

It also achieves this without any thermodynamic unsoundness.
This commit is contained in:
Kevin Zheng
2023-12-11 15:59:47 -08:00
committed by GitHub
parent 5d8d668a71
commit a2ed25ad03
16 changed files with 35 additions and 12 deletions
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2
Content.Server/Atmos/EntitySystems/AirFilterSystem.cs
View File

@@ -56,7 +56,7 @@ public sealed class AirFilterSystem : EntitySystem
if (!GetAir(uid, out var air))
return;
var ratio = MathF.Min(1f, args.dt * filter.TransferRate);
var ratio = MathF.Min(1f, args.dt * filter.TransferRate * _atmosphere.PumpSpeedup());
var removed = air.RemoveRatio(ratio);
// nothing left to remove from the volume
if (MathHelper.CloseToPercent(removed.TotalMoles, 0f))

2
Content.Server/Atmos/EntitySystems/AtmosphereSystem.CVars.cs
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@@ -24,6 +24,7 @@ namespace Content.Server.Atmos.EntitySystems
public bool ExcitedGroupsSpaceIsAllConsuming { get; private set; }
public float AtmosMaxProcessTime { get; private set; }
public float AtmosTickRate { get; private set; }
public float Speedup { get; private set; }
/// <summary>
/// Time between each atmos sub-update. If you are writing an atmos device, use AtmosDeviceUpdateEvent.dt
@@ -49,6 +50,7 @@ namespace Content.Server.Atmos.EntitySystems
_cfg.OnValueChanged(CCVars.Superconduction, value => Superconduction = value, true);
_cfg.OnValueChanged(CCVars.AtmosMaxProcessTime, value => AtmosMaxProcessTime = value, true);
_cfg.OnValueChanged(CCVars.AtmosTickRate, value => AtmosTickRate = value, true);
_cfg.OnValueChanged(CCVars.AtmosSpeedup, value => Speedup = value, true);
_cfg.OnValueChanged(CCVars.ExcitedGroups, value => ExcitedGroups = value, true);
_cfg.OnValueChanged(CCVars.ExcitedGroupsSpaceIsAllConsuming, value => ExcitedGroupsSpaceIsAllConsuming = value, true);
}

12
Content.Server/Atmos/EntitySystems/AtmosphereSystem.Gases.cs
View File

@@ -59,7 +59,17 @@ namespace Content.Server.Atmos.EntitySystems
Span<float> tmp = stackalloc float[moles.Length];
NumericsHelpers.Multiply(moles, GasSpecificHeats, tmp);
return MathF.Max(NumericsHelpers.HorizontalAdd(tmp), Atmospherics.MinimumHeatCapacity);
// Adjust heat capacity by speedup, because this is primarily what
// determines how quickly gases heat up/cool.
return MathF.Max(NumericsHelpers.HorizontalAdd(tmp), Atmospherics.MinimumHeatCapacity) / Speedup;
}
/// <summary>
/// Return speedup factor for pumped or flow-based devices that depend on MaxTransferRate.
/// </summary>
public float PumpSpeedup()
{
return MathF.Sqrt(Speedup);
}
/// <summary>