Frezon (#9980)

* stuff i'll have to fix anyway when n2o gets merged * everything except the finished reactions * freon coolant reaction but with bad curve * miasmic subsumation * freon production * nitrogen and diff temp scaling * uhh meant to change that * # * hitting that frezon boof
2022-07-27 02:55:28 -07:00
parent 86089f2213
commit 7a553781cc
24 changed files with 344 additions and 13 deletions
--- a/Content.Server/Atmos/Reactions/FrezonCoolantReaction.cs
+++ b/Content.Server/Atmos/Reactions/FrezonCoolantReaction.cs
@@ -0,0 +1,58 @@
+using Content.Server.Atmos.EntitySystems;
+using Content.Shared.Atmos;
+using JetBrains.Annotations;
+
+namespace Content.Server.Atmos.Reactions;
+
+/// <summary>
+///     Takes in nitrogen and frezon and cools down the surrounding area.
+/// </summary>
+[UsedImplicitly]
+public sealed class FrezonCoolantReaction : IGasReactionEffect
+{
+    public ReactionResult React(GasMixture mixture, IGasMixtureHolder? holder, AtmosphereSystem atmosphereSystem)
+    {
+        var oldHeatCapacity = atmosphereSystem.GetHeatCapacity(mixture);
+        var temperature = mixture.Temperature;
+
+        var energyModifier = 1f;
+        var scale = (temperature - Atmospherics.FrezonCoolLowerTemperature) /
+                    (Atmospherics.FrezonCoolMidTemperature - Atmospherics.FrezonCoolLowerTemperature);
+
+        if (scale > 1f)
+        {
+            // Scale energy but not frezon usage if we're in a very, very hot place
+            energyModifier = Math.Min(scale, Atmospherics.FrezonCoolMaximumEnergyModifier);
+            scale = 1f;
+        }
+
+        if (scale <= 0)
+            return ReactionResult.NoReaction;
+
+        var initialNit = mixture.GetMoles(Gas.Nitrogen);
+        var initialFrezon = mixture.GetMoles(Gas.Frezon);
+
+        var burnRate = initialFrezon * scale / Atmospherics.FrezonCoolRateModifier;
+
+        var energyReleased = 0f;
+        if (burnRate > Atmospherics.MinimumHeatCapacity)
+        {
+            var nitAmt = Math.Min(burnRate * Atmospherics.FrezonNitrogenCoolRatio, initialNit);
+            var frezonAmt = Math.Min(burnRate, initialFrezon);
+            mixture.AdjustMoles(Gas.Nitrogen, -nitAmt);
+            mixture.AdjustMoles(Gas.Frezon, -frezonAmt);
+            // TODO nitrous oxide
+            mixture.AdjustMoles(Gas.CarbonDioxide, nitAmt + frezonAmt);
+            energyReleased = burnRate * Atmospherics.FrezonCoolEnergyReleased * energyModifier;
+        }
+
+        if (energyReleased >= 0f)
+            return ReactionResult.NoReaction;
+
+        var newHeatCapacity = atmosphereSystem.GetHeatCapacity(mixture);
+        if (newHeatCapacity > Atmospherics.MinimumHeatCapacity)
+            mixture.Temperature = (temperature * oldHeatCapacity + energyReleased) / newHeatCapacity;
+
+        return ReactionResult.Reacting;
+    }
+}