Fires now play a sound effect.

Content.Server/Atmos/EntitySystems/AirtightSystem.cs

@@ -20,7 +20,6 @@ public override void Initialize()
         {
             SubscribeLocalEvent<AirtightComponent, ComponentInit>(OnAirtightInit);
             SubscribeLocalEvent<AirtightComponent, ComponentShutdown>(OnAirtightShutdown);
-            SubscribeLocalEvent<AirtightComponent, MapInitEvent>(OnMapInit);
             SubscribeLocalEvent<AirtightComponent, AnchorStateChangedEvent>(OnAirtightPositionChanged);
             SubscribeLocalEvent<AirtightComponent, RotateEvent>(OnAirtightRotated);
         }
@@ -58,10 +57,6 @@ private void OnAirtightShutdown(EntityUid uid, AirtightComponent airtight, Compo
             RaiseLocalEvent(new AirtightChanged(airtight));
         }
 
-        private void OnMapInit(EntityUid uid, AirtightComponent airtight, MapInitEvent args)
-        {
-        }
-
         private void OnAirtightPositionChanged(EntityUid uid, AirtightComponent airtight, ref AnchorStateChangedEvent args)
         {
             var xform = EntityManager.GetComponent<TransformComponent>(uid);

Content.Server/Atmos/EntitySystems/AtmosphereSystem.CVars.cs

@@ -9,7 +9,6 @@ public partial class AtmosphereSystem
         [Dependency] private readonly IConfigurationManager _cfg = default!;
 
         public bool SpaceWind { get; private set; }
-        public string? SpaceWindSound { get; private set; }
         public bool MonstermosEqualization { get; private set; }
         public bool MonstermosDepressurization { get; private set; }
         public bool MonstermosRipTiles { get; private set; }
@@ -24,7 +23,6 @@ public partial class AtmosphereSystem
         private void InitializeCVars()
         {
             _cfg.OnValueChanged(CCVars.SpaceWind, value => SpaceWind = value, true);
-            _cfg.OnValueChanged(CCVars.SpaceWindSound, value => SpaceWindSound = value, true);
             _cfg.OnValueChanged(CCVars.MonstermosEqualization, value => MonstermosEqualization = value, true);
             _cfg.OnValueChanged(CCVars.MonstermosDepressurization, value => MonstermosDepressurization = value, true);
             _cfg.OnValueChanged(CCVars.MonstermosRipTiles, value => MonstermosRipTiles = value, true);

Content.Server/Atmos/EntitySystems/AtmosphereSystem.Gases.cs

@@ -21,6 +21,10 @@ public partial class AtmosphereSystem
         ///     List of gas reactions ordered by priority.
         /// </summary>
         public IEnumerable<GasReactionPrototype> GasReactions => _gasReactions!;
+
+        /// <summary>
+        ///     Cached array of gas specific heats.
+        /// </summary>
         public float[] GasSpecificHeats => _gasSpecificHeats;
 
         private void InitializeGases()
@@ -36,11 +40,17 @@ private void InitializeGases()
             }
         }
 
+        /// <summary>
+        ///     Calculates the heat capacity for a gas mixture.
+        /// </summary>
         public float GetHeatCapacity(GasMixture mixture)
         {
             return GetHeatCapacityCalculation(mixture.Moles, mixture.Immutable);
         }
 
+        /// <summary>
+        ///     Calculates the heat capacity for a gas mixture, using the archived values.
+        /// </summary>
         public float GetHeatCapacityArchived(GasMixture mixture)
         {
             return GetHeatCapacityCalculation(mixture.MolesArchived, mixture.Immutable);
@@ -60,16 +70,26 @@ private float GetHeatCapacityCalculation(float[] moles, bool immutable)
             return MathF.Max(NumericsHelpers.HorizontalAdd(tmp), Atmospherics.MinimumHeatCapacity);
         }
 
+        /// <summary>
+        ///     Calculates the thermal energy for a gas mixture.
+        /// </summary>
         public float GetThermalEnergy(GasMixture mixture)
         {
             return mixture.Temperature * GetHeatCapacity(mixture);
         }
 
+        /// <summary>
+        ///     Calculates the thermal energy for a gas mixture, using a cached heat capacity value.
+        /// </summary>
         public float GetThermalEnergy(GasMixture mixture, float cachedHeatCapacity)
         {
             return mixture.Temperature * cachedHeatCapacity;
         }
 
+        /// <summary>
+        ///     Merges the <see cref="giver"/> gas mixture into the <see cref="receiver"/> gas mixture.
+        ///     The <see cref="giver"/> gas mixture is not modified by this method.
+        /// </summary>
         public void Merge(GasMixture receiver, GasMixture giver)
         {
             if (receiver.Immutable) return;
@@ -88,6 +108,9 @@ public void Merge(GasMixture receiver, GasMixture giver)
             NumericsHelpers.Add(receiver.Moles, giver.Moles);
         }
 
+        /// <summary>
+        ///     Shares gas between two gas mixtures. Part of LINDA.
+        /// </summary>
         public float Share(GasMixture receiver, GasMixture sharer, int atmosAdjacentTurfs)
         {
             var temperatureDelta = receiver.TemperatureArchived - sharer.TemperatureArchived;
@@ -169,6 +192,9 @@ public float Share(GasMixture receiver, GasMixture sharer, int atmosAdjacentTurf
 
         }
 
+        /// <summary>
+        ///     Shares temperature between two mixtures, taking a conduction coefficient into account.
+        /// </summary>
         public float TemperatureShare(GasMixture receiver, GasMixture sharer, float conductionCoefficient)
         {
             var temperatureDelta = receiver.TemperatureArchived - sharer.TemperatureArchived;
@@ -192,6 +218,9 @@ public float TemperatureShare(GasMixture receiver, GasMixture sharer, float cond
             return sharer.Temperature;
         }
 
+        /// <summary>
+        ///     Shares temperature between a gas mixture and an abstract sharer, taking a conduction coefficient into account.
+        /// </summary>
         public float TemperatureShare(GasMixture receiver, float conductionCoefficient, float sharerTemperature, float sharerHeatCapacity)
         {
             var temperatureDelta = receiver.TemperatureArchived - sharerTemperature;
@@ -271,6 +300,9 @@ public bool PumpGasTo(GasMixture mixture, GasMixture output, float targetPressur
             return true;
         }
 
+        /// <summary>
+        ///     Scrubs specified gases from a gas mixture into a <see cref="destination"/> gas mixture.
+        /// </summary>
         public void ScrubInto(GasMixture mixture, GasMixture destination, IReadOnlyCollection<Gas> filterGases)
         {
             var buffer = new GasMixture(mixture.Volume){Temperature = mixture.Temperature};
@@ -284,6 +316,9 @@ public void ScrubInto(GasMixture mixture, GasMixture destination, IReadOnlyColle
             Merge(destination, buffer);
         }
 
+        /// <summary>
+        ///     Performs reactions for a given gas mixture on an optional holder.
+        /// </summary>
         public ReactionResult React(GasMixture mixture, IGasMixtureHolder? holder)
         {
             var reaction = ReactionResult.NoReaction;
@@ -300,7 +335,7 @@ public ReactionResult React(GasMixture mixture, IGasMixtureHolder? holder)
                 var doReaction = true;
                 for (var i = 0; i < prototype.MinimumRequirements.Length; i++)
                 {
-                    if(i > Atmospherics.TotalNumberOfGases)
+                    if(i >= Atmospherics.TotalNumberOfGases)
                         throw new IndexOutOfRangeException("Reaction Gas Minimum Requirements Array Prototype exceeds total number of gases!");
 
                     var req = prototype.MinimumRequirements[i];

Content.Server/Atmos/EntitySystems/AtmosphereSystem.HighPressureDelta.cs

@@ -9,25 +9,31 @@
 using Robust.Shared.Maths;
 using Robust.Shared.Physics;
 using Robust.Shared.Player;
+using Robust.Shared.ViewVariables;
 
 namespace Content.Server.Atmos.EntitySystems
 {
     public partial class AtmosphereSystem
     {
+        private const int SpaceWindSoundCooldownCycles = 75;
+
         private int _spaceWindSoundCooldown = 0;
 
+        [ViewVariables(VVAccess.ReadWrite)]
+        public string? SpaceWindSound { get; private set; } = "/Audio/Effects/space_wind.ogg";
+
         private void HighPressureMovements(GridAtmosphereComponent gridAtmosphere, TileAtmosphere tile)
         {
             // TODO ATMOS finish this
 
-            if(tile.PressureDifference > 15)
+            // Don't play the space wind sound on tiles that are on fire...
+            if(tile.PressureDifference > 15 && !tile.Hotspot.Valid)
             {
-                if(_spaceWindSoundCooldown == 0)
+                if(_spaceWindSoundCooldown == 0 && !string.IsNullOrEmpty(SpaceWindSound))
                 {
                     var coordinates = tile.GridIndices.ToEntityCoordinates(tile.GridIndex, _mapManager);
-                    if(!string.IsNullOrEmpty(SpaceWindSound))
-                        SoundSystem.Play(Filter.Pvs(coordinates), SpaceWindSound, coordinates,
-                            AudioHelpers.WithVariation(0.125f).WithVolume(MathHelper.Clamp(tile.PressureDifference / 10, 10, 100)));
+                    SoundSystem.Play(Filter.Pvs(coordinates), SpaceWindSound, coordinates,
+                        AudioHelpers.WithVariation(0.125f).WithVolume(MathHelper.Clamp(tile.PressureDifference / 10, 10, 100)));
                 }
             }
 
@@ -51,8 +57,7 @@ private void HighPressureMovements(GridAtmosphereComponent gridAtmosphere, TileA
                 // TODO ATMOS Do space wind graphics here!
             }
 
-            _spaceWindSoundCooldown++;
-            if (_spaceWindSoundCooldown > 75)
+            if (_spaceWindSoundCooldown++ > SpaceWindSoundCooldownCycles)
                 _spaceWindSoundCooldown = 0;
         }
 

Content.Server/Atmos/EntitySystems/AtmosphereSystem.Hotspot.cs

@@ -1,16 +1,29 @@
 using Content.Server.Atmos.Components;
 using Content.Server.Atmos.Reactions;
 using Content.Shared.Atmos;
+using Content.Shared.Audio;
 using Robust.Server.GameObjects;
+using Robust.Shared.Audio;
 using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
+using Robust.Shared.Map;
+using Robust.Shared.Maths;
+using Robust.Shared.Player;
+using Robust.Shared.ViewVariables;
 
 namespace Content.Server.Atmos.EntitySystems
 {
     public partial class AtmosphereSystem
     {
         [Dependency] private readonly IEntityLookup _lookup = default!;
 
+        private const int HotspotSoundCooldownCycles = 200;
+
+        private int _hotspotSoundCooldown = 0;
+
+        [ViewVariables(VVAccess.ReadWrite)]
+        public string? HotspotSound { get; private set; } = "/Audio/Effects/fire.ogg";
+
         private void ProcessHotspot(GridAtmosphereComponent gridAtmosphere, TileAtmosphere tile)
         {
             if (!tile.Hotspot.Valid)
@@ -70,6 +83,19 @@ private void ProcessHotspot(GridAtmosphereComponent gridAtmosphere, TileAtmosphe
             if (tile.Hotspot.Temperature > tile.MaxFireTemperatureSustained)
                 tile.MaxFireTemperatureSustained = tile.Hotspot.Temperature;
 
+            if (_hotspotSoundCooldown++ == 0 && !string.IsNullOrEmpty(HotspotSound))
+            {
+                var coordinates = tile.GridIndices.ToEntityCoordinates(tile.GridIndex, _mapManager);
+                // A few details on the audio parameters for fire.
+                // The greater the fire state, the lesser the pitch variation.
+                // The greater the fire state, the greater the volume.
+                SoundSystem.Play(Filter.Pvs(coordinates), HotspotSound, coordinates,
+                    AudioHelpers.WithVariation(0.15f/tile.Hotspot.State).WithVolume(-5f + 5f * tile.Hotspot.State));
+            }
+
+            if (_hotspotSoundCooldown > HotspotSoundCooldownCycles)
+                _hotspotSoundCooldown = 0;
+
             // TODO ATMOS Maybe destroy location here?
         }
 

Content.Shared/CCVar/CCVars.cs

@@ -381,12 +381,6 @@ public sealed class CCVars : CVars
         public static readonly CVarDef<bool> SpaceWind =
             CVarDef.Create("atmos.space_wind", true, CVar.SERVERONLY);
 
-        /// <summary>
-        ///     The sound that plays when space wind occurs.
-        /// </summary>
-        public static readonly CVarDef<string> SpaceWindSound =
-            CVarDef.Create("atmos.space_wind_sound", "/Audio/Effects/space_wind.ogg", CVar.SERVERONLY);
-
         /// <summary>
         ///     Whether monstermos tile equalization is enabled.
         /// </summary>

Resources/Audio/Effects/license.txt

@@ -14,3 +14,5 @@ voteding.ogg taken from "Bike, Bell Ding, Single, 01-01.wav" by InspectorJ (www.
 poster_broken.ogg taken from https://github.com/tgstation/tgstation/blob/2834383245d2129a106acef3afd17b81e1e64777/sound/items/poster_ripped.ogg
 
 poster_being_set.ogg taken from https://github.com/tgstation/tgstation/blob/2834383245d2129a106acef3afd17b81e1e64777/sound/items/poster_ripped.ogg
+
+fire.ogg taken and edited from https://freesound.org/people/raremess/sounds/222557/