gives hydrakin 50% damage resistance from low pressures

Content.Server/Atmos/Components/BarotraumaComponent.cs

@@ -42,6 +42,15 @@ namespace Content.Server.Atmos.Components
         [ViewVariables]
         public float LowPressureModifier = 0f;
 
+        /// <summary>
+        /// Damage Modifier Values - Mono
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        public float LowPressureDamageModifier = 1;
+        [ViewVariables(VVAccess.ReadWrite)]
+        public float HighPressureDamageModifier = 1;
+
+
         /// <summary>
         /// Whether the entity is immuned to pressure (i.e possess the PressureImmunity component)
         /// </summary>

Content.Server/Atmos/EntitySystems/BarotraumaSystem.cs

@@ -257,8 +257,8 @@ namespace Content.Server.Atmos.EntitySystems
 
                 if (pressure <= Atmospherics.HazardLowPressure)
                 {
-                    // Deal damage and ignore resistances. Resistance to pressure damage should be done via pressure protection gear.
-                    _damageableSystem.TryChangeDamage(uid, barotrauma.Damage * Atmospherics.LowPressureDamage, true, false, origin: uid, canSever: false);
+                    // Deal damage and ignore resistances. Resistance to pressure damage should be done via pressure protection gear. - Mono: added damage modifier
+                    _damageableSystem.TryChangeDamage(uid, barotrauma.Damage * Atmospherics.LowPressureDamage * barotrauma.LowPressureDamageModifier, true, false, origin: uid, canSever: false);
 
                     if (!barotrauma.TakingDamage)
                     {
@@ -272,8 +272,8 @@ namespace Content.Server.Atmos.EntitySystems
                 {
                     var damageScale = MathF.Min(((pressure / Atmospherics.HazardHighPressure) - 1) * Atmospherics.PressureDamageCoefficient, Atmospherics.MaxHighPressureDamage);
 
-                    // Deal damage and ignore resistances. Resistance to pressure damage should be done via pressure protection gear.
-                    _damageableSystem.TryChangeDamage(uid, barotrauma.Damage * damageScale, true, false, origin: uid, canSever: false);
+                    // Deal damage and ignore resistances. Resistance to pressure damage should be done via pressure protection gear. - Mono: added damage modifier
+                    _damageableSystem.TryChangeDamage(uid, barotrauma.Damage * damageScale * barotrauma.HighPressureDamageModifier, true, false, origin: uid, canSever: false);
 
                     if (!barotrauma.TakingDamage)
                     {

Resources/Prototypes/_Obelisk/Entities/Mobs/Species/hydrakin.yml

@@ -74,6 +74,8 @@
     ignoreHeatResistance: true
   - type: PressureProtection
     lowPressureMultiplier: 1.2
+  - type: Barotrauma # Innate low pressure damage resist TODO: implement it into pressureprotection, maybe, maybe not.
+    LowPressureDamageModifier: 0.5
   - type: Inventory
     speciesId: hydrakin
     templateId: hydrakin