58 lines
2.2 KiB
C#
58 lines
2.2 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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/// <summary>
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/// Takes in nitrogen and frezon and cools down the surrounding area.
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/// </summary>
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[UsedImplicitly]
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public sealed partial class FrezonCoolantReaction : 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 oldHeatCapacity = atmosphereSystem.GetHeatCapacity(mixture);
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var temperature = mixture.Temperature;
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var energyModifier = 1f;
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var scale = (temperature - Atmospherics.FrezonCoolLowerTemperature) /
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(Atmospherics.FrezonCoolMidTemperature - Atmospherics.FrezonCoolLowerTemperature);
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if (scale > 1f)
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{
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// Scale energy but not frezon usage if we're in a very, very hot place
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energyModifier = Math.Min(scale, Atmospherics.FrezonCoolMaximumEnergyModifier);
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scale = 1f;
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}
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if (scale <= 0)
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return ReactionResult.NoReaction;
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var initialNit = mixture.GetMoles(Gas.Nitrogen);
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var initialFrezon = mixture.GetMoles(Gas.Frezon);
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var burnRate = initialFrezon * scale / Atmospherics.FrezonCoolRateModifier;
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var energyReleased = 0f;
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if (burnRate > Atmospherics.MinimumHeatCapacity)
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{
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var nitAmt = Math.Min(burnRate * Atmospherics.FrezonNitrogenCoolRatio, initialNit);
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var frezonAmt = Math.Min(burnRate, initialFrezon);
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mixture.AdjustMoles(Gas.Nitrogen, -nitAmt);
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mixture.AdjustMoles(Gas.Frezon, -frezonAmt);
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mixture.AdjustMoles(Gas.NitrousOxide, nitAmt + frezonAmt);
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energyReleased = burnRate * Atmospherics.FrezonCoolEnergyReleased * energyModifier;
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}
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if (energyReleased >= 0f)
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return ReactionResult.NoReaction;
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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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return ReactionResult.Reacting;
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}
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}
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