Cognizine, a chemical that makes an entity sentient and a ghost role (#11992)

Content.Server/Chemistry/ReagentEffects/MakeSentient.cs

@@ -0,0 +1,39 @@
+using Content.Server.Mind.Components;
+using Content.Server.Speech.Components;
+
+using Content.Shared.Chemistry.Reagent;
+using Content.Server.Ghost.Roles.Components;
+
+namespace Content.Server.Chemistry.ReagentEffects;
+
+public sealed class MakeSentient : ReagentEffect
+{
+    public override void Effect(ReagentEffectArgs args)
+    {
+        var entityManager = args.EntityManager;
+        var uid = args.SolutionEntity;
+
+        // This makes it so it doesn't affect things that are already sentient
+        if (entityManager.HasComponent<MindComponent>(uid))
+        {
+            return;
+        }
+
+        // This piece of code makes things able to speak "normally". One thing of note is that monkeys have a unique accent and won't be affected by this.
+        entityManager.RemoveComponent<ReplacementAccentComponent>(uid);
+
+        // No idea what anything past this point does
+        if (entityManager.TryGetComponent(uid, out GhostTakeoverAvailableComponent? takeOver))
+        {
+            return;
+        }
+
+        takeOver = entityManager.AddComponent<GhostTakeoverAvailableComponent>(uid);
+
+        var entityData = entityManager.GetComponent<MetaDataComponent>(uid);
+        takeOver.RoleName = entityData.EntityName;
+        takeOver.RoleDescription = Loc.GetString("ghost-role-information-cognizine-description");
+    }
+}
+
+// Original code written by areitpog on GitHub in Issue #7666, then I (Interrobang01) copied it and used my nonexistant C# skills to try to make it work again.