a2ed25ad03
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.
84 lines
4.1 KiB
C#
84 lines
4.1 KiB
C#
using Content.Server.Atmos.EntitySystems;
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using Content.Shared.Atmos;
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using JetBrains.Annotations;
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namespace Content.Server.Atmos.Reactions
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{
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[UsedImplicitly]
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[DataDefinition]
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public sealed partial class PlasmaFireReaction : IGasReactionEffect
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{
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public ReactionResult React(GasMixture mixture, IGasMixtureHolder? holder, AtmosphereSystem atmosphereSystem)
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{
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var energyReleased = 0f;
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var oldHeatCapacity = atmosphereSystem.GetHeatCapacity(mixture);
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var temperature = mixture.Temperature;
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var location = holder as TileAtmosphere;
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mixture.ReactionResults[GasReaction.Fire] = 0;
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// More plasma released at higher temperatures.
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var temperatureScale = 0f;
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if (temperature > Atmospherics.PlasmaUpperTemperature)
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temperatureScale = 1f;
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else
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temperatureScale = (temperature - Atmospherics.PlasmaMinimumBurnTemperature) /
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(Atmospherics.PlasmaUpperTemperature - Atmospherics.PlasmaMinimumBurnTemperature);
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if (temperatureScale > 0)
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{
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var oxygenBurnRate = Atmospherics.OxygenBurnRateBase - temperatureScale;
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var plasmaBurnRate = 0f;
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var initialOxygenMoles = mixture.GetMoles(Gas.Oxygen);
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var initialPlasmaMoles = mixture.GetMoles(Gas.Plasma);
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// Supersaturation makes tritium.
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var oxyRatio = initialOxygenMoles / initialPlasmaMoles;
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// Efficiency of reaction decreases from 1% Plasma to 3% plasma:
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var supersaturation = Math.Clamp((oxyRatio - Atmospherics.SuperSaturationEnds) /
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(Atmospherics.SuperSaturationThreshold -
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Atmospherics.SuperSaturationEnds), 0.0f, 1.0f);
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if (initialOxygenMoles > initialPlasmaMoles * Atmospherics.PlasmaOxygenFullburn)
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plasmaBurnRate = initialPlasmaMoles * temperatureScale / Atmospherics.PlasmaBurnRateDelta;
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else
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plasmaBurnRate = temperatureScale * (initialOxygenMoles / Atmospherics.PlasmaOxygenFullburn) / Atmospherics.PlasmaBurnRateDelta;
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if (plasmaBurnRate > Atmospherics.MinimumHeatCapacity)
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{
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plasmaBurnRate = MathF.Min(plasmaBurnRate, MathF.Min(initialPlasmaMoles, initialOxygenMoles / oxygenBurnRate));
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mixture.SetMoles(Gas.Plasma, initialPlasmaMoles - plasmaBurnRate);
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mixture.SetMoles(Gas.Oxygen, initialOxygenMoles - plasmaBurnRate * oxygenBurnRate);
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// supersaturation adjusts the ratio of produced tritium to unwanted CO2
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mixture.AdjustMoles(Gas.Tritium, plasmaBurnRate * supersaturation);
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mixture.AdjustMoles(Gas.CarbonDioxide, plasmaBurnRate * (1.0f - supersaturation));
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energyReleased += Atmospherics.FirePlasmaEnergyReleased * plasmaBurnRate;
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energyReleased /= atmosphereSystem.Speedup; // adjust energy to make sure speedup doesn't cause mega temperature rise
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mixture.ReactionResults[GasReaction.Fire] += plasmaBurnRate * (1 + oxygenBurnRate);
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}
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}
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if (energyReleased > 0)
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{
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var newHeatCapacity = atmosphereSystem.GetHeatCapacity(mixture);
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if (newHeatCapacity > Atmospherics.MinimumHeatCapacity)
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mixture.Temperature = (temperature * oldHeatCapacity + energyReleased) / newHeatCapacity;
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}
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if (location != null)
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{
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var mixTemperature = mixture.Temperature;
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if (mixTemperature > Atmospherics.FireMinimumTemperatureToExist)
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{
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atmosphereSystem.HotspotExpose(location.GridIndex, location.GridIndices, mixTemperature, mixture.Volume);
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}
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}
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return mixture.ReactionResults[GasReaction.Fire] != 0 ? ReactionResult.Reacting : ReactionResult.NoReaction;
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}
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}
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}
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