Rebind matching grenades

Patches/RebindGrenadesPatch.cs

@@ -0,0 +1,48 @@
+using EFT;
+using EFT.InventoryLogic;
+using HarmonyLib;
+using SPT.Reflection.Patching;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+
+namespace UIFixes
+{
+    public class RebindGrenadesPatch : ModulePatch
+    {
+        private static readonly EquipmentSlot[] Slots = [EquipmentSlot.Pockets, EquipmentSlot.TacticalVest, EquipmentSlot.Backpack, EquipmentSlot.SecuredContainer, EquipmentSlot.ArmBand];
+
+        protected override MethodBase GetTargetMethod()
+        {
+            Type type = typeof(Player).GetNestedTypes().Single(t => t.GetField("DiscardResult") != null);
+            return AccessTools.Method(type, "RaiseEvents");
+        }
+
+        // This is a grenade specific event emitter that has all the info needed to do this
+        [PatchPostfix]
+        public static void Postfix(CommandStatus status, GClass2799 ___DiscardResult)
+        {
+            if (status != CommandStatus.Succeed)
+            {
+                return;
+            }
+
+            var unbindResult = ___DiscardResult.UnbindResults.FirstOrDefault();
+            if (unbindResult != null)
+            {
+                InventoryControllerClass controller = unbindResult.Controller;
+                EBoundItem index = unbindResult.Index;
+
+                List<GrenadeClass> matchingGrenades = [];
+                controller.GetAcceptableItemsNonAlloc<GrenadeClass>(Slots, matchingGrenades, g => g.TemplateId == unbindResult.Item.TemplateId);
+
+                var nextGrenade = matchingGrenades.FirstOrDefault(g => controller.IsAtBindablePlace(g));
+                if (nextGrenade != null)
+                {
+                    controller.TryRunNetworkTransaction(GClass2818.Run(controller, nextGrenade, index, true), null);
+                }
+            }
+        }
+    }
+}

Plugin.cs

@@ -56,6 +56,7 @@ namespace UIFixes
             new FixTraderControllerSimulateFalsePatch().Enable();
             LoadMultipleMagazinesPatches.Enable();
             new PutToolsBackPatch().Enable();
+            new RebindGrenadesPatch().Enable();
         }
 
         public static bool InRaid()