New Objective: Ensure another traitor stays alive. (#6020)

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>
Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Server/Objectives/Conditions/RandomTraitorAliveCondition.cs

@@ -0,0 +1,79 @@
+using System.Collections.Generic;
+using Content.Server.Mind.Components;
+using Content.Server.Objectives.Interfaces;
+using JetBrains.Annotations;
+using Robust.Shared.GameObjects;
+using Robust.Shared.IoC;
+using Robust.Shared.Random;
+using Robust.Shared.Localization;
+using Robust.Shared.Utility;
+using Robust.Shared.Serialization.Manager.Attributes;
+using Content.Server.Traitor;
+
+namespace Content.Server.Objectives.Conditions
+{
+    [DataDefinition]
+    public class RandomTraitorAliveCondition : IObjectiveCondition
+    {
+        protected Mind.Mind? Target;
+
+        public IObjectiveCondition GetAssigned(Mind.Mind mind)
+        {
+            var entityMgr = IoCManager.Resolve<IEntityManager>();
+            List<Mind.Mind> _allOtherTraitors = new List<Mind.Mind>();
+
+            foreach (var targetMind in entityMgr.EntityQuery<MindComponent>())
+            {
+                if (targetMind.Mind?.CharacterDeadIC == false && targetMind.Mind != mind && targetMind.Mind?.HasRole<TraitorRole>() == true)
+                {
+                        _allOtherTraitors.Add(targetMind.Mind);
+                }
+            }
+
+            return new RandomTraitorAliveCondition {Target = IoCManager.Resolve<IRobustRandom>().Pick(_allOtherTraitors)};
+        }
+
+        public string Title
+        {
+            get
+            {
+                var targetName = string.Empty;
+
+                if (Target == null)
+                    return Loc.GetString("objective-condition-other-traitor-alive-title", ("targetName", targetName));
+
+                if (Target.CharacterName != null)
+                    targetName = Target.CharacterName;
+                else if (Target.OwnedEntity is {Valid: true} owned)
+                    targetName = IoCManager.Resolve<IEntityManager>().GetComponent<MetaDataComponent>(owned).EntityName;
+
+                return Loc.GetString("objective-condition-other-traitor-alive-title", ("targetName", targetName));
+            }
+        }
+
+        public string Description => Loc.GetString("objective-condition-other-traitor-alive-description");
+
+        public SpriteSpecifier Icon => new SpriteSpecifier.Rsi(new ResourcePath("Objects/Misc/bureaucracy.rsi"), "folder_red");
+
+        public float Progress => (!Target?.CharacterDeadIC ?? true) ? 1f : 0f;
+
+        public float Difficulty => 1.75f;
+
+        public bool Equals(IObjectiveCondition? other)
+        {
+            return other is RandomTraitorAliveCondition kpc && Equals(Target, kpc.Target);
+        }
+
+        public override bool Equals(object? obj)
+        {
+            if (ReferenceEquals(null, obj)) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj is RandomTraitorAliveCondition alive && alive.Equals(this);
+        }
+
+        public override int GetHashCode()
+        {
+            return Target?.GetHashCode() ?? 0;
+        }
+    }
+}