Adds barotrauma (pressure damage) (#1605)

* Adds barotrauma, disables it for now

* At least show status effect, but don't damage the mobs

* Fix switch misuse

Content.Server/Atmos/GasMixture.cs

@@ -462,7 +462,7 @@ namespace Content.Server.Atmos
                         continue;
 
                     reaction = prototype.React(this, holder);
-                    if(reaction.HasFlag(ReactionResult.NoReaction))
+                    if(reaction.HasFlag(ReactionResult.StopReactions))
                         break;
                 }
             }

Content.Server/Atmos/Reactions/GasReactionPrototype.cs

@@ -13,7 +13,7 @@ namespace Content.Server.Atmos.Reactions
     {
         NoReaction = 0,
         Reacting = 1,
-
+        StopReactions = 2,
     }
 
     [Prototype("gasReaction")]

Content.Server/GameObjects/Components/Atmos/BarotraumaComponent.cs

@@ -0,0 +1,98 @@
+using System.Runtime.CompilerServices;
+using CannyFastMath;
+using Content.Server.GameObjects.Components.Mobs;
+using Content.Server.GameObjects.EntitySystems;
+using Content.Server.Interfaces.GameObjects;
+using Content.Shared.Atmos;
+using Content.Shared.GameObjects.Components.Mobs;
+using Robust.Shared.GameObjects;
+using Robust.Shared.GameObjects.Systems;
+
+namespace Content.Server.GameObjects.Components.Atmos
+{
+    /// <summary>
+    ///     Barotrauma: injury because of changes in air pressure.
+    /// </summary>
+    [RegisterComponent]
+    public class BarotraumaComponent : Component
+    {
+        public override string Name => "Barotrauma";
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void Update(float frameTime)
+        {
+            if (!Owner.TryGetComponent(out DamageableComponent damageable)) return;
+            Owner.TryGetComponent(out ServerStatusEffectsComponent status);
+
+            var coordinates = Owner.Transform.GridPosition;
+            var gridAtmos = EntitySystem.Get<AtmosphereSystem>().GetGridAtmosphere(coordinates.GridID);
+            var tile = gridAtmos?.GetTile(coordinates);
+
+            var pressure = 1f;
+            var highPressureMultiplier = 1f;
+            var lowPressureMultiplier = 1f;
+
+            foreach (var protection in Owner.GetAllComponents<IPressureProtection>())
+            {
+                highPressureMultiplier *= protection.HighPressureMultiplier;
+                lowPressureMultiplier *= protection.LowPressureMultiplier;
+            }
+
+            if (tile?.Air != null)
+                pressure = MathF.Max(tile.Air.Pressure, 1f);
+
+            switch (pressure)
+            {
+                // Low pressure.
+                case var p when p <= Atmospherics.WarningLowPressure:
+                    pressure *= lowPressureMultiplier;
+
+                    if(pressure > Atmospherics.WarningLowPressure)
+                        goto default;
+
+                    // TODO ATMOS Uncomment this when saltern is pressurized
+                    //damageable.TakeDamage(DamageType.Brute, Atmospherics.LowPressureDamage, Owner, null);
+
+                    if (status == null) break;
+
+                    if (pressure <= Atmospherics.HazardLowPressure)
+                    {
+                        status.ChangeStatusEffect(StatusEffect.Pressure, "/Textures/Interface/StatusEffects/Pressure/lowpressure2.png", null);
+                        break;
+                    }
+
+                    status.ChangeStatusEffect(StatusEffect.Pressure, "/Textures/Interface/StatusEffects/Pressure/lowpressure1.png", null);
+                    break;
+
+                // High pressure.
+                case var p when p >= Atmospherics.WarningHighPressure:
+                    pressure *= highPressureMultiplier;
+
+                    if(pressure < Atmospherics.WarningHighPressure)
+                        goto default;
+
+                    var damage = (int) MathF.Min((pressure / Atmospherics.HazardHighPressure) * Atmospherics.PressureDamageCoefficient, Atmospherics.MaxHighPressureDamage);
+
+                    // TODO ATMOS Uncomment this when saltern is pressurized
+                    //damageable.TakeDamage(DamageType.Brute, damage, Owner, null);
+
+                    if (status == null) break;
+
+                    if (pressure >= Atmospherics.HazardHighPressure)
+                    {
+                        status.ChangeStatusEffect(StatusEffect.Pressure, "/Textures/Interface/StatusEffects/Pressure/highpressure2.png", null);
+                        break;
+                    }
+
+                    status.ChangeStatusEffect(StatusEffect.Pressure, "/Textures/Interface/StatusEffects/Pressure/highpressure1.png", null);
+                    break;
+
+                // Normal pressure.
+                default:
+                    status?.RemoveStatusEffect(StatusEffect.Pressure);
+                    break;
+            }
+
+        }
+    }
+}

Content.Server/GameObjects/Components/Atmos/PressureProtectionComponent.cs

@@ -0,0 +1,27 @@
+using Content.Server.Interfaces.GameObjects;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization;
+using Robust.Shared.ViewVariables;
+
+namespace Content.Server.GameObjects.Components.Atmos
+{
+    [RegisterComponent]
+    public class PressureProtectionComponent : Component, IPressureProtection
+    {
+        public override string Name => "PressureProtection";
+
+        [ViewVariables]
+        public float HighPressureMultiplier { get; private set; }
+
+        [ViewVariables]
+        public float LowPressureMultiplier { get; private set; }
+
+        public override void ExposeData(ObjectSerializer serializer)
+        {
+            base.ExposeData(serializer);
+
+            serializer.DataField(this, x => HighPressureMultiplier, "highPressureMultiplier", 1f);
+            serializer.DataField(this, x => LowPressureMultiplier, "lowPressureMultiplier", 1f);
+        }
+    }
+}

Content.Server/GameObjects/Components/GUI/InventoryComponent.cs

@@ -8,6 +8,7 @@ using Content.Server.GameObjects.Components.Items.Storage;
 using Content.Server.GameObjects.EntitySystems.Click;
 using Content.Server.Interfaces.GameObjects.Components.Interaction;
 using Content.Server.Interfaces;
+using Content.Server.Interfaces.GameObjects;
 using Content.Shared.GameObjects;
 using Content.Shared.GameObjects.EntitySystems;
 using Robust.Server.GameObjects.Components.Container;
@@ -26,7 +27,7 @@ using static Content.Shared.GameObjects.SharedInventoryComponent.ClientInventory
 namespace Content.Server.GameObjects
 {
     [RegisterComponent]
-    public class InventoryComponent : SharedInventoryComponent, IExAct, IEffectBlocker
+    public class InventoryComponent : SharedInventoryComponent, IExAct, IEffectBlocker, IPressureProtection
     {
 #pragma warning disable 649
         [Dependency] private readonly IEntitySystemManager _entitySystemManager;
@@ -51,6 +52,52 @@ namespace Content.Server.GameObjects
             }
         }
 
+        // Optimization: Cache this
+        [ViewVariables]
+        public float HighPressureMultiplier
+        {
+            get
+            {
+                var multiplier = 1f;
+
+                foreach (var (slot, containerSlot) in SlotContainers)
+                {
+                    foreach (var entity in containerSlot.ContainedEntities)
+                    {
+                        foreach (var protection in entity.GetAllComponents<IPressureProtection>())
+                        {
+                            multiplier *= protection.HighPressureMultiplier;
+                        }
+                    }
+                }
+
+                return multiplier;
+            }
+        }
+
+        // Optimization: Cache this
+        [ViewVariables]
+        public float LowPressureMultiplier
+        {
+            get
+            {
+                var multiplier = 1f;
+
+                foreach (var (slot, containerSlot) in SlotContainers)
+                {
+                    foreach (var entity in containerSlot.ContainedEntities)
+                    {
+                        foreach (var protection in entity.GetAllComponents<IPressureProtection>())
+                        {
+                            multiplier *= protection.LowPressureMultiplier;
+                        }
+                    }
+                }
+
+                return multiplier;
+            }
+        }
+
         bool IEffectBlocker.CanSlip()
         {
             if(Owner.TryGetComponent(out InventoryComponent inventoryComponent) &&

Content.Server/GameObjects/EntitySystems/BarotraumaSystem.cs

@@ -0,0 +1,29 @@
+using Content.Server.GameObjects.Components.Atmos;
+using JetBrains.Annotations;
+using Robust.Shared.GameObjects.Systems;
+
+namespace Content.Server.GameObjects.EntitySystems
+{
+    [UsedImplicitly]
+    public class BarotraumaSystem : EntitySystem
+    {
+        private const float TimePerUpdate = 0.5f;
+
+        private float _timer = 0f;
+
+        /// <inheritdoc />
+        public override void Update(float frameTime)
+        {
+            _timer += frameTime;
+
+            if (_timer < TimePerUpdate) return;
+
+            _timer = 0f;
+
+            foreach (var barotraumaComp in ComponentManager.EntityQuery<BarotraumaComponent>())
+            {
+                barotraumaComp.Update(frameTime);
+            }
+        }
+    }
+}

Content.Server/Interfaces/GameObjects/IPressureProtection.cs

@@ -0,0 +1,8 @@
+namespace Content.Server.Interfaces.GameObjects
+{
+    public interface IPressureProtection
+    {
+        public float HighPressureMultiplier { get; }
+        public float LowPressureMultiplier { get; }
+    }
+}

Content.Shared/Atmos/Atmospherics.cs

@@ -158,6 +158,44 @@ namespace Content.Shared.Atmos
         public const float PhoronUpperTemperature = (1370f+T0C);
         public const float PhoronOxygenFullburn = 10f;
         public const float PhoronBurnRateDelta = 9f;
+
+        /// <summary>
+        ///     Determines at what pressure the ultra-high pressure red icon is displayed.
+        /// </summary>
+        public const float HazardHighPressure = 550f;
+
+        /// <summary>
+        ///     Determines when the orange pressure icon is displayed.
+        /// </summary>
+        public const float WarningHighPressure = 0.7f * HazardHighPressure;
+
+        /// <summary>
+        ///     Determines when the gray low pressure icon is displayed.
+        /// </summary>
+        public const float WarningLowPressure = 2.5f * HazardLowPressure;
+
+        /// <summary>
+        ///     Determines when the black ultra-low pressure icon is displayed.
+        /// </summary>
+        public const float HazardLowPressure = 20f;
+
+        /// <summary>
+        ///    The amount of pressure damage someone takes is equal to (pressure / HAZARD_HIGH_PRESSURE)*PRESSURE_DAMAGE_COEFFICIENT,
+        ///     with the maximum of MaxHighPressureDamage.
+        /// </summary>
+        public const float PressureDamageCoefficient = 4;
+
+        /// <summary>
+        ///     Maximum amount of damage that can be endured with high pressure.
+        /// </summary>
+        public const int MaxHighPressureDamage = 4;
+
+        /// <summary>
+        ///     The amount of damage someone takes when in a low pressure area
+        ///     (The pressure threshold is so low that it doesn't make sense to do any calculations,
+        ///     so it just applies this flat value).
+        /// </summary>
+        public const int LowPressureDamage = 4;
     }
 
     /// <summary>

Content.Shared/GameObjects/Components/Mobs/SharedStatusEffectsComponent.cs

@@ -56,6 +56,7 @@ namespace Content.Shared.GameObjects.Components.Mobs
         Health,
         Hunger,
         Thirst,
+        Pressure,
         Stun,
         Buckled,
         Piloting,

Resources/Prototypes/Entities/Mobs/Species/human.yml

@@ -12,6 +12,7 @@
   - type: Hands
   - type: MovementSpeedModifier
   - type: MovedByPressure
+  - type: Barotrauma
   - type: DamageOnHighSpeedImpact
     soundHit: /Audio/Effects/hit_kick.ogg
   - type: Hunger

Resources/Textures/Interface/StatusEffects/Pressure/meta.json

@@ -0,0 +1,47 @@
+{
+    "version": 1,
+    "size": {
+        "x": 32,
+        "y": 32
+    },
+    "license": "CC-BY-SA 3.0",
+    "copyright": "Taken from https://github.com/tgstation/tgstation at 04e43d8c1d5097fdb697addd4395fb849dd341bd",
+    "states": [
+        {
+            "name": "highpressure1",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "highpressure2",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "lowpressure1",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "lowpressure2",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        }
+    ]
+}

SpaceStation14.sln.DotSettings

@@ -45,6 +45,7 @@
     <s:String x:Key="/Default/FilterSettingsManager/CoverageFilterXml/@EntryValue">&lt;data&gt;&lt;IncludeFilters /&gt;&lt;ExcludeFilters&gt;&lt;Filter ModuleMask="*.UnitTesting" ModuleVersionMask="*" ClassMask="*" FunctionMask="*" IsEnabled="True" /&gt;&lt;/ExcludeFilters&gt;&lt;/data&gt;</s:String>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Atmos/@EntryIndexedValue">True</s:Boolean>
     <s:Boolean x:Key="/Default/UserDictionary/Words/=autoconnect/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Barotrauma/@EntryIndexedValue">True</s:Boolean>
     <s:Boolean x:Key="/Default/UserDictionary/Words/=BYOND/@EntryIndexedValue">True</s:Boolean>
     <s:String x:Key="/Default/FilterSettingsManager/AttributeFilterXml/@EntryValue">&lt;data /&gt;</s:String>
     <s:String x:Key="/Default/FilterSettingsManager/CoverageFilterXml/@EntryValue">&lt;data&gt;&lt;IncludeFilters /&gt;&lt;ExcludeFilters&gt;&lt;Filter ModuleMask="Lidgren.Network" ModuleVersionMask="*" ClassMask="*" FunctionMask="*" IsEnabled="True" /&gt;&lt;/ExcludeFilters&gt;&lt;/data&gt;</s:String>