Add CVar for disabling/enabling excited groups.

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

@@ -15,6 +15,7 @@ namespace Content.Server.Atmos.EntitySystems
         public bool MonstermosRipTiles { get; private set; }
         public bool GridImpulse { get; private set; }
         public bool Superconduction { get; private set; }
+        public bool ExcitedGroups { get; private set; }
         public bool ExcitedGroupsSpaceIsAllConsuming { get; private set; }
         public float AtmosMaxProcessTime { get; private set; }
         public float AtmosTickRate { get; private set; }
@@ -31,6 +32,7 @@ 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.ExcitedGroups, value => ExcitedGroups = value, true);
             _cfg.OnValueChanged(CCVars.ExcitedGroupsSpaceIsAllConsuming, value => ExcitedGroupsSpaceIsAllConsuming = value, true);
         }
     }

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

@@ -38,7 +38,7 @@ namespace Content.Server.Atmos.EntitySystems
 
                 var shouldShareAir = false;
 
-                if (tile.ExcitedGroup != null && enemyTile.ExcitedGroup != null)
+                if (ExcitedGroups && tile.ExcitedGroup != null && enemyTile.ExcitedGroup != null)
                 {
                     if (tile.ExcitedGroup != enemyTile.ExcitedGroup)
                     {
@@ -53,21 +53,24 @@ namespace Content.Server.Atmos.EntitySystems
                         AddActiveTile(gridAtmosphere, enemyTile);
                     }
 
-                    var excitedGroup = tile.ExcitedGroup;
+                    if (ExcitedGroups)
-                    excitedGroup ??= enemyTile.ExcitedGroup;
-
-                    if (excitedGroup == null)
                     {
-                        excitedGroup = new ExcitedGroup();
+                        var excitedGroup = tile.ExcitedGroup;
-                        gridAtmosphere.ExcitedGroups.Add(excitedGroup);
+                        excitedGroup ??= enemyTile.ExcitedGroup;
+
+                        if (excitedGroup == null)
+                        {
+                            excitedGroup = new ExcitedGroup();
+                            gridAtmosphere.ExcitedGroups.Add(excitedGroup);
+                        }
+
+                        if (tile.ExcitedGroup == null)
+                            ExcitedGroupAddTile(excitedGroup, tile);
+
+                        if(enemyTile.ExcitedGroup == null)
+                            ExcitedGroupAddTile(excitedGroup, enemyTile);
                     }
 
-                    if (tile.ExcitedGroup == null)
-                        ExcitedGroupAddTile(excitedGroup, tile);
-
-                    if(enemyTile.ExcitedGroup == null)
-                        ExcitedGroupAddTile(excitedGroup, enemyTile);
-
                     shouldShareAir = true;
                 }
 
@@ -102,7 +105,7 @@ namespace Content.Server.Atmos.EntitySystems
                 if (ConsiderSuperconductivity(gridAtmosphere, tile, true))
                     remove = false;
 
-            if(tile.ExcitedGroup == null && remove)
+            if(ExcitedGroups && tile.ExcitedGroup == null && remove)
                 RemoveActiveTile(gridAtmosphere, tile);
         }
 

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

@@ -281,7 +281,8 @@ namespace Content.Server.Atmos.EntitySystems
                         }
 
                         atmosphere.ProcessingPaused = false;
-                        atmosphere.State = AtmosphereProcessingState.ExcitedGroups;
+                        // Next state depends on whether excited groups are enabled or not.
+                        atmosphere.State = ExcitedGroups ? AtmosphereProcessingState.ExcitedGroups : AtmosphereProcessingState.HighPressureDelta;
                         continue;
                     case AtmosphereProcessingState.ExcitedGroups:
                         if (!ProcessExcitedGroups(atmosphere))

Content.Shared/CCVar/CCVars.cs

@@ -291,7 +291,6 @@ namespace Content.Shared.CCVar
         public static readonly CVarDef<bool> AtmosGridImpulse =
             CVarDef.Create("atmos.grid_impulse", false, CVar.SERVERONLY);
 
-
         /// <summary>
         ///     Whether atmos superconduction is enabled.
         /// </summary>
@@ -299,10 +298,17 @@ namespace Content.Shared.CCVar
         public static readonly CVarDef<bool> Superconduction =
             CVarDef.Create("atmos.superconduction", false, CVar.SERVERONLY);
 
+        /// <summary>
+        ///     Whether excited groups will be processed and created.
+        /// </summary>
+        public static readonly CVarDef<bool> ExcitedGroups =
+            CVarDef.Create("atmos.excited_groups", true, CVar.SERVERONLY);
+
         /// <summary>
         ///     Whether all tiles in an excited group will clear themselves once being exposed to space.
         ///     Similar to <see cref="MonstermosDepressurization"/>, without none of the tile ripping or
         ///     things being thrown around very violently.
+        ///     Needs <see cref="ExcitedGroups"/> to be enabled to work.
         /// </summary>
         public static readonly CVarDef<bool> ExcitedGroupsSpaceIsAllConsuming =
             CVarDef.Create("atmos.excited_groups_space_is_all_consuming", false, CVar.SERVERONLY);