Jetpack fixes (#9107)

Content.Server/Movement/Systems/JetpackSystem.cs

@@ -14,7 +14,7 @@ public sealed class JetpackSystem : SharedJetpackSystem
 
     protected override bool CanEnable(JetpackComponent component)
     {
-        return TryComp<GasTankComponent>(component.Owner, out var gasTank) && !(gasTank.Air.Pressure < component.VolumeUsage);
+        return TryComp<GasTankComponent>(component.Owner, out var gasTank) && !(gasTank.Air.TotalMoles < component.MoleUsage);
     }
 
     public override void Update(float frameTime)
@@ -29,14 +29,14 @@ public sealed class JetpackSystem : SharedJetpackSystem
             if (active.Accumulator < UpdateCooldown) continue;
 
             active.Accumulator -= UpdateCooldown;
+            var air = gasTank.RemoveAir(comp.MoleUsage);
 
-            if (gasTank.Air.Pressure < comp.VolumeUsage)
+            if (air == null || !MathHelper.CloseTo(air.TotalMoles, comp.MoleUsage, 0.1f))
             {
                 toDisable.Add(comp);
                 continue;
             }
 
-            gasTank.RemoveAirVolume(comp.VolumeUsage);
             gasTank.UpdateUserInterface();
         }
 

Content.Shared/Movement/Components/JetpackComponent.cs

@@ -7,8 +7,8 @@ namespace Content.Shared.Movement.Components;
 [RegisterComponent, NetworkedComponent]
 public sealed class JetpackComponent : Component
 {
-    [ViewVariables(VVAccess.ReadWrite), DataField("volumeUsage")]
-    public float VolumeUsage = Atmospherics.BreathVolume;
+    [ViewVariables(VVAccess.ReadWrite), DataField("moleUsage")]
+    public float MoleUsage = 0.048f;
 
     [ViewVariables, DataField("toggleAction", required: true)]
     public InstantAction ToggleAction = new();

Resources/Locale/en-US/movement/jetpacks.ftl

@@ -0,0 +1,2 @@
+action-name-jetpack-toggle = Toggle jetpack
+action-description-jetpack-toggle = Toggles the jetpack, giving you movement outside the station.

Resources/Prototypes/Entities/Objects/Tools/jetpacks.yml

@@ -53,7 +53,7 @@
           sprite: Objects/Tanks/Jetpacks/blue.rsi
           state: icon-on
         name: action-name-jetpack-toggle
-        description: action-decription-jetpack-toggle
+        description: action-description-jetpack-toggle
         itemIconStyle: NoItem
         event: !type:ToggleJetpackEvent
     - type: Appearance