From 3abd27423bfef2dec2bd7215120fb5c3047c9298 Mon Sep 17 00:00:00 2001
From: Lacyway <20912169+Lacyway@users.noreply.github.com>
Date: Thu, 9 Jan 2025 02:18:40 -0800
Subject: [PATCH] Add EnablePrestigeTabPatch (#23)

* Add new transpilers

* Cleanup

* Fix transpiler

* Fix incorrect code instruction

* Add EnablePrestigeTabPatch

---------

Co-authored-by: Chomp <27521899+chompDev@users.noreply.github.com>
---
 .../Patches/EnablePrestigeTabPatch.cs         | 40 +++++++++++++++++++
 project/SPT.Custom/SPTCustomPlugin.cs         |  3 ++
 2 files changed, 43 insertions(+)
 create mode 100644 project/SPT.Custom/Patches/EnablePrestigeTabPatch.cs

diff --git a/project/SPT.Custom/Patches/EnablePrestigeTabPatch.cs b/project/SPT.Custom/Patches/EnablePrestigeTabPatch.cs
new file mode 100644
index 0000000..c9825fb
--- /dev/null
+++ b/project/SPT.Custom/Patches/EnablePrestigeTabPatch.cs
@@ -0,0 +1,40 @@
+using EFT.UI;
+using HarmonyLib;
+using SPT.Reflection.Patching;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Reflection.Emit;
+
+namespace SPT.Custom.Patches
+{
+    /// <summary>
+    /// This transpiler removes the call to <see cref="IBackEndSession.SessionMode"/> to determine if it's <see cref="ESessionMode.Regular"/> <br/>
+    /// and forces a true instead
+    /// </summary>
+    internal class EnablePrestigeTabPatch : ModulePatch
+    {
+        protected override MethodBase GetTargetMethod()
+        {
+            return AccessTools.Method(typeof(InventoryScreen.Class2754), nameof(InventoryScreen.Class2754.MoveNext));
+        }
+
+        [PatchTranspiler]
+        public static IEnumerable<CodeInstruction> Transpile(IEnumerable<CodeInstruction> instructions)
+        {
+            CodeInstruction[] codeInstructions = instructions.ToArray();
+
+            // Remove all instructions that gets the gamemode from iSession
+            codeInstructions[259] = new(OpCodes.Nop);
+            codeInstructions[260] = new(OpCodes.Nop);
+            codeInstructions[261] = new(OpCodes.Nop);
+            codeInstructions[262] = new(OpCodes.Nop);
+            codeInstructions[263] = new(OpCodes.Nop);
+
+            // Force a true on the stack instead
+            codeInstructions[264] = new(OpCodes.Ldc_I4_1);
+
+            return codeInstructions;
+        }
+    }
+}
diff --git a/project/SPT.Custom/SPTCustomPlugin.cs b/project/SPT.Custom/SPTCustomPlugin.cs
index 7dc8df0..9d16734 100644
--- a/project/SPT.Custom/SPTCustomPlugin.cs
+++ b/project/SPT.Custom/SPTCustomPlugin.cs
@@ -48,6 +48,9 @@ namespace SPT.Custom
                 new AllowAirdropsInPvEPatch().Enable();
                 new MemoryCollectionPatch().Enable();
 
+                // 4.0
+                new EnablePrestigeTabPatch().Enable();
+
                 HookObject.AddComponent<MenuNotificationManager>();
             }
             catch (Exception ex)