vox oxygen toxicity, respiration changes (#26705)

* vox oxygen toxicity and related stuff

* Review

---------

Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Shared/Preferences/Loadouts/Effects/SpeciesLoadoutEffect.cs

@@ -0,0 +1,6 @@
+namespace Content.Shared.Preferences.Loadouts.Effects;
+
+public sealed class SpeciesLoadoutEffect
+{
+    
+}

Resources/Prototypes/Reagents/botany.yml

@@ -222,6 +222,9 @@
         - !type:OrganType
           type: Rat
           shouldHave: false
+        - !type:OrganType
+           type: Vox
+           shouldHave: false
         - !type:ReagentThreshold
           reagent: Ammonia
           min: 0.8
@@ -249,6 +252,11 @@
             Burn: -5
           types:
             Bloodloss: -5
+      - !type:Oxygenate # ammonia displaces nitrogen in vox blood
+        conditions:
+        - !type:OrganType
+          type: Vox
+        factor: -4
 
 
 - type: reagent

Resources/Prototypes/Reagents/gases.yml

@@ -35,6 +35,25 @@
         ratios:
           CarbonDioxide: 1.0
           Oxygen: -1.0
+      - !type:HealthChange
+        conditions:
+        - !type:OrganType
+          type: Vox
+        scaleByQuantity: true
+        ignoreResistances: true
+        damage:
+          types:
+            Poison:
+              7
+      - !type:AdjustAlert
+        alertType: Toxins
+        conditions:
+          - !type:ReagentThreshold
+            min: 0.5
+          - !type:OrganType
+            type: Vox
+        clear: true
+        time: 5
 
 - type: reagent
   id: Plasma
@@ -142,6 +161,9 @@
         - !type:OrganType
           type: Plant
           shouldHave: false
+        - !type:OrganType
+          type: Vox
+          shouldHave: false
         # Don't want people to get toxin damage from the gas they just
         # exhaled, right?
         - !type:ReagentThreshold
@@ -194,7 +216,7 @@
         - !type:OrganType
           type: Vox
         ratios:
-          CarbonDioxide: 1.0
+          Ammonia: 1.0
           Nitrogen: -1.0
       - !type:ModifyLungGas
         conditions: