Let species prototypes define valid sexes (Sex Refactor) (#11520)

Content.Shared/Humanoid/NamingSystem.cs

@@ -0,0 +1,58 @@
+using Content.Shared.Humanoid.Prototypes;
+using Content.Shared.Dataset;
+using Robust.Shared.Random;
+using Robust.Shared.Prototypes;
+using Robust.Shared.Enums;
+
+namespace Content.Shared.Humanoid
+{
+    /// <summary>
+    /// Figure out how to name a humanoid with these extensions.
+    /// </summary>
+    public sealed class NamingSystem : EntitySystem
+    {
+        [Dependency] private readonly IRobustRandom _random = default!;
+        [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
+
+        public string GetName(string species, Gender? gender = null)
+        {
+            // if they have an old species or whatever just fall back to human I guess?
+            // Some downstream is probably gonna have this eventually but then they can deal with fallbacks.
+            if (!_prototypeManager.TryIndex(species, out SpeciesPrototype? speciesProto))
+            {
+                speciesProto = _prototypeManager.Index<SpeciesPrototype>("Human");
+                Logger.Warning($"Unable to find species {species} for name, falling back to Human");
+            }
+
+            switch (speciesProto.Naming)
+            {
+                case SpeciesNaming.FirstDashFirst:
+                    return $"{GetFirstName(speciesProto, gender)}-{GetFirstName(speciesProto, gender)}";
+                case SpeciesNaming.FirstLast:
+                default:
+                    return $"{GetFirstName(speciesProto, gender)} {GetLastName(speciesProto)}";
+            }
+        }
+
+        public string GetFirstName(SpeciesPrototype speciesProto, Gender? gender = null)
+        {
+            switch (gender)
+            {
+                case Gender.Male:
+                    return _random.Pick(_prototypeManager.Index<DatasetPrototype>(speciesProto.MaleFirstNames).Values);
+                case Gender.Female:
+                    return _random.Pick(_prototypeManager.Index<DatasetPrototype>(speciesProto.FemaleFirstNames).Values);
+                default:
+                    if (_random.Prob(0.5f))
+                        return _random.Pick(_prototypeManager.Index<DatasetPrototype>(speciesProto.MaleFirstNames).Values);
+                    else
+                        return _random.Pick(_prototypeManager.Index<DatasetPrototype>(speciesProto.FemaleFirstNames).Values);
+            }
+        }
+
+        public string GetLastName(SpeciesPrototype speciesProto)
+        {
+            return _random.Pick(_prototypeManager.Index<DatasetPrototype>(speciesProto.LastNames).Values);
+        }
+    }
+}