Re-organize all projects (#4166)

Content.Shared/Inventory/InventoryTemplates.cs

@@ -0,0 +1,62 @@
+#nullable enable
+using System.Collections.Generic;
+using JetBrains.Annotations;
+using static Content.Shared.Inventory.EquipmentSlotDefines;
+
+namespace Content.Shared.Inventory
+{
+    public abstract class Inventory
+    {
+        public abstract string InterfaceControllerTypeName { get; }
+
+        public abstract IReadOnlyList<Slots> SlotMasks { get; }
+
+        /// <summary>
+        ///     Gets the drawing order of a slot.
+        /// </summary>
+        /// <returns>
+        ///     An int that can be used for sorting relative to other drawing orders.
+        ///     The value returned does not mean anything else.
+        /// </returns>
+        public abstract int SlotDrawingOrder(Slots slot);
+    }
+
+    // Dynamically created by SharedInventoryComponent.
+    [UsedImplicitly]
+    public class HumanInventory : Inventory
+    {
+        public override string InterfaceControllerTypeName => "HumanInventoryInterfaceController";
+
+        private static readonly Dictionary<Slots, int> _slotDrawingOrder = new()
+        {
+            {Slots.POCKET1, 13},
+            {Slots.POCKET2, 12},
+            {Slots.HEAD, 11},
+            {Slots.MASK, 10},
+            {Slots.EARS, 9},
+            {Slots.NECK, 8},
+            {Slots.BACKPACK, 7},
+            {Slots.EYES, 6},
+            {Slots.OUTERCLOTHING, 5},
+            {Slots.BELT, 4},
+            {Slots.GLOVES, 3},
+            {Slots.SHOES, 2},
+            {Slots.IDCARD, 1},
+            {Slots.INNERCLOTHING, 0}
+        };
+
+        public override IReadOnlyList<Slots> SlotMasks { get; } = new List<Slots>()
+        {
+            Slots.EYES, Slots.HEAD, Slots.EARS,
+            Slots.OUTERCLOTHING, Slots.MASK, Slots.INNERCLOTHING,
+            Slots.BACKPACK, Slots.BELT, Slots.GLOVES,
+            Slots.NONE, Slots.SHOES, Slots.IDCARD, Slots.POCKET1, Slots.POCKET2,
+            Slots.NECK
+        };
+
+        public override int SlotDrawingOrder(Slots slot)
+        {
+            return _slotDrawingOrder.TryGetValue(slot, out var val) ? val : 0;
+        }
+    }
+}