Map marker placement fixes:

- Allow placing map markers on discovered locations (from po3's Tweaks)
- Place map markers on undiscovered locations without asking

SKSE/Plugins/EnderalSE.ini

@@ -1,2 +1,3 @@
 FlatMapMarkers = true
 StayAtSystemPage = true
+MapMarkerPlacementFixes = true

source/Enderal DLL/src/FlatMapMarkers.h

@@ -14,6 +14,7 @@ namespace FlatMapMarkers
 	inline void Install()
 	{
 		REL::Relocation<std::uintptr_t> offset{ RELOCATION_ID(52224, 53111), IsSE() ? 0x22F : 0x21F };
+		SKSE::AllocTrampoline(14);
 		auto& trampoline = SKSE::GetTrampoline();
 		trampoline.write_call<5>(offset.address(), &Hook_WorldPtToScreenPt3);
 	}

source/Enderal DLL/src/Main.cpp

@@ -3,12 +3,14 @@
 #include "Papyrus.h"
 #include "FlatMapMarkers.h"
 #include "StayAtSystemPage.h"
+#include "MapMarkerPlacement.h"
 
 using namespace SKSE;
 
 static std::map<std::string, bool> g_settings{
 	{ "FlatMapMarkers", true },
-	{ "StayAtSystemPage", true }
+	{ "StayAtSystemPage", true },
+	{ "MapMarkerPlacementFixes", true }
 };
 
 namespace {
@@ -48,7 +50,10 @@ namespace {
 						exit(EXIT_FAILURE);
 					}
 				}
-
+				if (g_settings.at("MapMarkerPlacementFixes")) {
+					logger::info("Initializing map market placement fixes...");
+					MapMarkerPlacement::Install();
+				}
 			} else if (message->type == MessagingInterface::kDataLoaded) {
 				const auto dataHandler = RE::TESDataHandler::GetSingleton();
 				if (dataHandler) {
@@ -148,7 +153,6 @@ SKSEPluginLoad(const LoadInterface* skse) {
 	if (!IsVR()) {
 		if (g_settings.at("FlatMapMarkers")) {
 			logger::info("Initializing Flat Map Markers...");
-			SKSE::AllocTrampoline(1 << 4);
 			FlatMapMarkers::Install();
 		}
 		if (g_settings.at("StayAtSystemPage")) {

source/Enderal DLL/src/MapMarkerPlacement.h

@@ -0,0 +1,67 @@
+#pragma once
+
+// Based on powerofthree's Tweaks 1.8.1 by powerofthree (MIT)
+namespace MapMarkerPlacement
+{
+	constexpr std::uint8_t NOP{ 0x90 };
+
+	struct IsFastTravelEnabled
+	{
+		static bool thunk(RE::PlayerCharacter* a_this, bool a_hideNotification)
+		{
+			const auto enabled = func(a_this, a_hideNotification);
+			if (!enabled) {
+				if (const auto mapMenu = RE::UI::GetSingleton()->GetMenu<RE::MapMenu>(); mapMenu) {
+					mapMenu->PlaceMarker();
+				}
+			}
+			return enabled;
+		}
+		static inline REL::Relocation<decltype(thunk)> func;
+	};
+
+	void InstallPlacementDiscoveredFix()
+	{
+		// Place a marker, if a location has been discovered and fast travel is disabled
+
+		REL::Relocation<std::uintptr_t> target{ REL::RelocationID(52208, 53095), REL::Relocate(0x2C5, 0x328, 0x358) };
+		auto& trampoline = SKSE::GetTrampoline();
+
+		SKSE::AllocTrampoline(14);
+		IsFastTravelEnabled::func = trampoline.write_call<5>(target.address(), IsFastTravelEnabled::thunk);
+
+		logger::info("Applied discovered map marker placement fix"sv);
+	}
+
+	void InstallPlacementUndiscoveredFix()
+	{
+		// Place a marker without asking, if a location isn't discovered yet
+
+		REL::Relocation<std::uintptr_t> target2{ REL::RelocationID(52208, 53095), REL::Relocate(0x17A, 0x183) };
+		std::uint8_t code[] = { 0xB0, 0x01, NOP, NOP, NOP };
+		REL::safe_write(target2.address(), code, 5);
+
+		logger::info("Applied undiscovered map marker placement fix"sv);
+	}
+
+	void Install()
+	{
+		if (GetLoadInterface()->GetPluginInfo("DisableFastTravel")) {
+			logger::info("Detected Disable Fast Travel SKSE, skipping discovered map marker placement fix");
+		} else if (!GetLoadInterface()->GetPluginInfo("po3_Tweaks")) {
+			InstallPlacementDiscoveredFix();
+		} else if (std::filesystem::exists("Data/SKSE/Plugins/po3_Tweaks.ini")) {
+			CSimpleIniA ini;
+			ini.SetMultiKey(false);
+			ini.LoadFile("Data/SKSE/Plugins/po3_Tweaks.ini");
+			if (!ini.GetBoolValue("Fixes", "Map Marker Placement Fix", false)) {
+				logger::info("Detected po3's Tweaks with disabled discovered Map Marker Placement Fix");
+				InstallPlacementDiscoveredFix();
+			} else {
+				logger::info("Detected po3's Tweaks with enabled discovered Map Marker Placement Fix");
+			}
+		}
+
+		InstallPlacementUndiscoveredFix();
+	}
+}

source/Enderal DLL/vcpkg-configuration.json

@@ -1,15 +1,20 @@
 {
-    "registries": [
-      {
-        "kind": "git",
-        "repository": "https://gitlab.com/colorglass/vcpkg-colorglass",
-        "baseline": "6309841a1ce770409708a67a9ba5c26c537d2937",
-        "packages": [
-          "commonlibsse-ng",
-          "gluino",
-          "script-extender-common",
-          "skse"
-        ]
-      }
-    ]
+  "default-registry": {
+    "kind": "git",
+    "repository": "https://github.com/microsoft/vcpkg.git",
+    "baseline": "08c4e71048eb54733d9b180a28b9b1d7ce637454"
+  },
+  "registries": [
+    {
+      "kind": "git",
+      "repository": "https://gitlab.com/colorglass/vcpkg-colorglass",
+      "baseline": "6309841a1ce770409708a67a9ba5c26c537d2937",
+      "packages": [
+        "commonlibsse-ng",
+        "gluino",
+        "script-extender-common",
+        "skse"
+      ]
+    }
+  ]
 }