Add kill fellow traitor objective

Content.Server/DeltaV/Objectives/Components/PickRandomTraitorComponent.cs

@@ -0,0 +1,9 @@
+using Content.Server.Objectives.Systems;
+
+namespace Content.Server.DeltaV.Objectives.Components;
+
+/// <summary>
+/// Sets the target for <see cref="TargetObjectiveComponent"/> to a random traitor.
+/// </summary>
+[RegisterComponent]
+public sealed partial class PickRandomTraitorComponent : Component;

Content.Server/DeltaV/Objectives/Systems/KillFellowTraitorObjectiveSystem.cs

@@ -0,0 +1,73 @@
+using Content.Server.DeltaV.Objectives.Components;
+using Content.Server.Objectives.Components;
+using Content.Server.GameTicking.Rules;
+using Content.Server.Objectives.Systems;
+using Content.Shared.Objectives.Components;
+using Robust.Shared.Random;
+
+namespace Content.Server.DeltaV.Objectives.Systems;
+
+/// <summary>
+///     Handles the kill fellow traitor objective.
+/// </summary>
+public sealed class KillFellowTraitorObjectiveSystem : EntitySystem
+{
+    [Dependency] private readonly IRobustRandom _random = default!;
+    [Dependency] private readonly TargetObjectiveSystem _target = default!;
+    [Dependency] private readonly TraitorRuleSystem _traitorRule = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+        SubscribeLocalEvent<PickRandomTraitorComponent, ObjectiveAssignedEvent>(OnTraitorKillAssigned);
+    }
+
+    private void OnTraitorKillAssigned(EntityUid uid, PickRandomTraitorComponent comp, ref ObjectiveAssignedEvent args)
+    {
+        if (!TryComp<TargetObjectiveComponent>(uid, out var target))
+        {
+            Log.Error($"Missing components for {uid}.");
+            args.Cancelled = true;
+            return;
+        }
+
+        // Target already assigned
+        if (target.Target != null)
+        {
+            Log.Error($"Target already assigned for {uid}.");
+            args.Cancelled = true;
+            return;
+        }
+
+        var traitors = _traitorRule.GetOtherTraitorMindsAliveAndConnected(args.Mind);
+
+        List<EntityUid> validTraitorMinds = [];
+
+        // Going through each OTHER traitor
+        foreach (var traitor in traitors)
+        {
+            var valid = true;
+            // Going through each of OUR objectives.
+            foreach (var objective in args.Mind.Objectives)
+            {
+                // If one of OUR objectives already targets a traitor, don't add it to the list.
+                if (TryComp<TargetObjectiveComponent>(objective, out var targetComp) && targetComp.Target == traitor.Id)
+                {
+                    valid = false;
+                    break;
+                }
+            }
+            if (valid)
+                validTraitorMinds.Add(traitor.Id);
+        }
+
+        // No other traitors
+        if (validTraitorMinds.Count == 0)
+        {
+            args.Cancelled = true;
+            return;
+        }
+
+        _target.SetTarget(uid, _random.Pick(validTraitorMinds), target);
+    }
+}

Resources/Locale/en-US/deltav/objectives/conditions/kill-fellow-traitor.ftl

@@ -0,0 +1 @@
+objective-condition-traitor-kill-title = Kill fellow traitor {$targetName}, {CAPITALIZE($job)}

Resources/Prototypes/DeltaV/Objectives/traitor.yml

@@ -80,3 +80,17 @@
   - type: TargetObjective
     title: objective-condition-teach-person-title
   - type: PickRandomPerson
+
+# Kill fellow traitor objective
+- type: entity
+  parent: [BaseTraitorObjective, BaseKillObjective]
+  id: KillRandomTraitorObjective
+  description: We have reason to believe that they have begun to question the syndicate and need to be eliminated.
+  components:
+  - type: Objective
+    difficulty: 2 # They can easily buy weapons to defend themselves if they think something is up.
+  - type: TargetObjective
+    title: objective-condition-traitor-kill-title
+  - type: PickRandomTraitor
+  - type: KillPersonCondition
+    requireDead: true # Being able to leave them on the shuttle doesn't make sense when killing another traitor.

Resources/Prototypes/Objectives/objectiveGroups.yml

@@ -35,6 +35,7 @@
     # KillRandomPersonObjective: 1 # DeltaV Replaced for Teach Lesson
     TeachLessonRandomPersonObjective: 1
     KillRandomHeadObjective: 0.25
+    KillRandomTraitorObjective: 0.1 # DeltaV
 
 - type: weightedRandom
   id: TraitorObjectiveGroupState