Fix radar

Content.Server/_SSS/SuspicionGameRule/Components/SuspicionRadarComponent.cs

@@ -1,4 +1,8 @@
 namespace Content.Server._SSS.SuspicionGameRule.Components;
 
 [RegisterComponent]
-public sealed partial class SuspicionRadarComponent : Component;
+public sealed partial class SuspicionRadarComponent : Component
+{
+    [DataField]
+    public bool ShowTraitors { get; set; } = true;
+}

Content.Server/_SSS/SuspicionRadarSystem.cs

@@ -0,0 +1,92 @@
+using Content.Server._SSS.SuspicionGameRule.Components;
+using Content.Server.Mind;
+using Content.Server.Roles;
+using Content.Shared._SSS.RadarOverlay;
+using Content.Shared.Implants.Components;
+using Content.Shared.Mobs;
+using Content.Shared.Mobs.Systems;
+using Robust.Server.GameObjects;
+using Robust.Server.Player;
+
+namespace Content.Server._SSS;
+
+public sealed class SuspicionRadarSystem : EntitySystem
+{
+    [Dependency] private readonly RoleSystem _roleSystem = default!;
+    [Dependency] private readonly MindSystem _mindSystem = default!;
+    [Dependency] private readonly MobStateSystem _mobStateSystem = default!;
+    [Dependency] private readonly TransformSystem _transformSystem = default!;
+    [Dependency] private readonly IPlayerManager _playerManager = default!;
+
+        public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<SubdermalImplantComponent, PingRadarImplantEvent>(OnPing);
+        SubscribeLocalEvent<MobStateChangedEvent>(OnMobStateChanged);
+    }
+
+    private void OnMobStateChanged(MobStateChangedEvent ev)
+    {
+        if (ev.NewMobState is not (MobState.Dead or MobState.Critical))
+            return;
+
+        if (!_playerManager.TryGetSessionByEntity(ev.Target, out var session))
+            return;
+
+        RaiseNetworkEvent(new OnRadarOverlayToggledEvent(false), session);
+    }
+
+    private void OnPing(EntityUid implantUid, SubdermalImplantComponent implant, PingRadarImplantEvent args)
+    {
+        var players = EntityQueryEnumerator<SuspicionPlayerComponent>();
+        var radarInfo = new List<RadarInfo>();
+        var uid = implant.ImplantedEntity;
+        if (uid == null)
+        {
+            Log.Error($"Implant {implantUid} has no implanted entity."); // how
+            return;
+        }
+
+        if (!_playerManager.TryGetSessionByEntity(uid.Value, out var session))
+        {
+            Log.Error($"Failed to locate player session for radar ping.");
+            return;
+        }
+
+        var component = Comp<SuspicionRadarComponent>(implantUid);
+
+        RaiseNetworkEvent(new OnRadarOverlayToggledEvent(true), session);
+
+        while (players.MoveNext(out var player, out var playerComponent))
+        {
+            if (player == uid)
+                continue;
+
+            if (_mobStateSystem.IsDead(player))
+                continue;
+
+            var mind = _mindSystem.GetMind(player);
+            if (mind == null)
+                continue;
+
+            if (!_roleSystem.MindHasRole<SuspicionRoleComponent>(mind.Value, out var role))
+                continue;
+
+            var roleComp = role.Value.Comp2;
+            var position = _transformSystem.GetWorldPosition(player);
+
+            var color = roleComp.Role switch
+            {
+                SuspicionRole.Traitor when component.ShowTraitors => Color.Red,
+                SuspicionRole.Detective => Color.Blue,
+                _ => Color.Green
+            };
+
+            radarInfo.Add(new RadarInfo(color, position));
+        }
+
+        RaiseNetworkEvent(new RadarOverlayUpdatedEvent(radarInfo.ToArray()), session);
+        args.Handled = true;
+    }
+}