Antag preferences and antag prototype (#1264)

Co-authored-by: Pieter-Jan Briers <pieterjan.briers+git@gmail.com>

Content.Shared/Roles/StartingGearPrototype.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization;
+using Robust.Shared.ViewVariables;
+using YamlDotNet.RepresentationModel;
+using static Content.Shared.GameObjects.Components.Inventory.EquipmentSlotDefines;
+
+namespace Content.Shared.Jobs
+{
+    [Prototype("startingGear")]
+    public class StartingGearPrototype : IPrototype, IIndexedPrototype
+    {
+        private string _id;
+        private Dictionary<Slots, string> _equipment;
+
+        public IReadOnlyDictionary<string, string> Inhand => _inHand;
+        /// <summary>
+        /// hand index, item prototype
+        /// </summary>
+        private Dictionary<string, string> _inHand;
+
+        [ViewVariables] public string ID => _id;
+
+        [ViewVariables] public IReadOnlyDictionary<Slots, string> Equipment => _equipment;
+
+        public void LoadFrom(YamlMappingNode mapping)
+        {
+            var serializer = YamlObjectSerializer.NewReader(mapping);
+
+            serializer.DataField(ref _id, "id", string.Empty);
+            serializer.DataField(ref _inHand, "inhand", new Dictionary<string, string>(0));
+
+            var equipment = serializer.ReadDataField<Dictionary<string, string>>("equipment");
+
+            _equipment = equipment.ToDictionary(slotStr =>
+            {
+                var (key, _) = slotStr;
+                if (!Enum.TryParse(key, true, out Slots slot))
+                {
+                    throw new Exception($"{key} is an invalid equipment slot.");
+                }
+
+                return slot;
+            }, type => type.Value);
+        }
+    }
+}