Disable cheats in hardcore mode

RetroAchievements does not allow cheats such as Action Replay or Gecko in hardcore mode, for fairness.

Source/Core/Core/ActionReplay.cpp

@@ -114,7 +114,7 @@ struct ARAddr
 // AR Remote Functions
 void ApplyCodes(std::span<const ARCode> codes)
 {
-  if (!Config::Get(Config::MAIN_ENABLE_CHEATS))
+  if (!Config::AreCheatsEnabled())
     return;
 
   std::lock_guard guard(s_lock);
@@ -143,7 +143,7 @@ void UpdateSyncedCodes(std::span<const ARCode> codes)
 
 std::vector<ARCode> ApplyAndReturnCodes(std::span<const ARCode> codes)
 {
-  if (Config::Get(Config::MAIN_ENABLE_CHEATS))
+  if (Config::AreCheatsEnabled())
   {
     std::lock_guard guard(s_lock);
     s_disable_logging = false;
@@ -158,7 +158,7 @@ std::vector<ARCode> ApplyAndReturnCodes(std::span<const ARCode> codes)
 
 void AddCode(ARCode code)
 {
-  if (!Config::Get(Config::MAIN_ENABLE_CHEATS))
+  if (!Config::AreCheatsEnabled())
     return;
 
   if (code.enabled)
@@ -990,7 +990,7 @@ static bool RunCodeLocked(const Core::CPUThreadGuard& guard, const ARCode& arcod
 
 void RunAllActive(const Core::CPUThreadGuard& cpu_guard)
 {
-  if (!Config::Get(Config::MAIN_ENABLE_CHEATS))
+  if (!Config::AreCheatsEnabled())
     return;
 
   // If the mutex is idle then acquiring it should be cheap, fast mutexes

Source/Core/Core/CheatSearch.cpp

@@ -16,6 +16,7 @@
 #include "Common/BitUtils.h"
 #include "Common/StringUtil.h"
 
+#include "Core/Config/AchievementSettings.h"
 #include "Core/Core.h"
 #include "Core/HW/Memmap.h"
 #include "Core/PowerPC/MMU.h"
@@ -206,6 +207,10 @@ Cheats::NewSearch(const Core::CPUThreadGuard& guard,
                   PowerPC::RequestedAddressSpace address_space, bool aligned,
                   const std::function<bool(const T& value)>& validator)
 {
+#ifdef USE_RETRO_ACHIEVEMENTS
+  if (Config::Get(Config::RA_HARDCORE_ENABLED))
+    return Cheats::SearchErrorCode::DisabledInHardcoreMode;
+#endif  // USE_RETRO_ACHIEVEMENTS
   const u32 data_size = sizeof(T);
   std::vector<Cheats::SearchResult<T>> results;
   Cheats::SearchErrorCode error_code = Cheats::SearchErrorCode::Success;
@@ -269,6 +274,10 @@ Cheats::NextSearch(const Core::CPUThreadGuard& guard,
                    PowerPC::RequestedAddressSpace address_space,
                    const std::function<bool(const T& new_value, const T& old_value)>& validator)
 {
+#ifdef USE_RETRO_ACHIEVEMENTS
+  if (Config::Get(Config::RA_HARDCORE_ENABLED))
+    return Cheats::SearchErrorCode::DisabledInHardcoreMode;
+#endif  // USE_RETRO_ACHIEVEMENTS
   std::vector<Cheats::SearchResult<T>> results;
   Cheats::SearchErrorCode error_code = Cheats::SearchErrorCode::Success;
   Core::RunAsCPUThread([&] {
@@ -444,6 +453,10 @@ MakeCompareFunctionForLastValue(Cheats::CompareType op)
 template <typename T>
 Cheats::SearchErrorCode Cheats::CheatSearchSession<T>::RunSearch(const Core::CPUThreadGuard& guard)
 {
+#ifdef USE_RETRO_ACHIEVEMENTS
+  if (Config::Get(Config::RA_HARDCORE_ENABLED))
+    return Cheats::SearchErrorCode::DisabledInHardcoreMode;
+#endif  // USE_RETRO_ACHIEVEMENTS
   Common::Result<SearchErrorCode, std::vector<SearchResult<T>>> result =
       Cheats::SearchErrorCode::InvalidParameters;
   if (m_filter_type == FilterType::CompareAgainstSpecificValue)

Source/Core/Core/CheatSearch.h

@@ -99,6 +99,11 @@ enum class SearchErrorCode
   // This is returned if PowerPC::RequestedAddressSpace::Virtual is given but the MSR.DR flag is
   // currently off in the emulated game.
   VirtualAddressesCurrentlyNotAccessible,
+
+#ifdef USE_RETRO_ACHIEVEMENTS
+  // Cheats and memory reading are disabled in RetroAchievements hardcore mode.
+  DisabledInHardcoreMode,
+#endif  // USE_RETRO_ACHIEVEMENTS
 };
 
 // Returns the corresponding DataType enum for the value currently held by the given SearchValue.

Source/Core/Core/Config/MainSettings.cpp

@@ -18,6 +18,7 @@
 #include "Common/MathUtil.h"
 #include "Common/StringUtil.h"
 #include "Common/Version.h"
+#include "Core/Config/AchievementSettings.h"
 #include "Core/Config/DefaultLocale.h"
 #include "Core/HW/EXI/EXI.h"
 #include "Core/HW/EXI/EXI_Device.h"
@@ -739,6 +740,15 @@ bool IsDefaultGCIFolderPathConfigured(ExpansionInterface::Slot slot)
   return Config::Get(GetInfoForGCIPath(slot)).empty();
 }
 
+bool AreCheatsEnabled()
+{
+#ifdef USE_RETRO_ACHIEVEMENTS
+  return Config::Get(::Config::MAIN_ENABLE_CHEATS) && !::Config::Get(::Config::RA_HARDCORE_ENABLED);
+#else   // USE_RETRO_ACHIEVEMENTS
+  return Config::Get(::Config::MAIN_ENABLE_CHEATS);
+#endif  // USE_RETRO_ACHIEVEMENTS
+}
+
 bool IsDebuggingEnabled()
 {
 #ifdef USE_RETRO_ACHIEVEMENTS

Source/Core/Core/Config/MainSettings.h

@@ -378,5 +378,6 @@ std::string GetGCIFolderPath(ExpansionInterface::Slot slot, std::optional<DiscIO
 std::string GetGCIFolderPath(std::string configured_folder, ExpansionInterface::Slot slot,
                              std::optional<DiscIO::Region> region);
 bool IsDefaultGCIFolderPathConfigured(ExpansionInterface::Slot slot);
+bool AreCheatsEnabled();
 bool IsDebuggingEnabled();
 }  // namespace Config

Source/Core/Core/GeckoCode.cpp

@@ -71,7 +71,7 @@ void SetActiveCodes(std::span<const GeckoCode> gcodes)
   std::lock_guard lk(s_active_codes_lock);
 
   s_active_codes.clear();
-  if (Config::Get(Config::MAIN_ENABLE_CHEATS))
+  if (Config::AreCheatsEnabled())
   {
     s_active_codes.reserve(gcodes.size());
     std::copy_if(gcodes.begin(), gcodes.end(), std::back_inserter(s_active_codes),
@@ -103,7 +103,7 @@ std::vector<GeckoCode> SetAndReturnActiveCodes(std::span<const GeckoCode> gcodes
   std::lock_guard lk(s_active_codes_lock);
 
   s_active_codes.clear();
-  if (Config::Get(Config::MAIN_ENABLE_CHEATS))
+  if (Config::AreCheatsEnabled())
   {
     s_active_codes.reserve(gcodes.size());
     std::copy_if(gcodes.begin(), gcodes.end(), std::back_inserter(s_active_codes),
@@ -238,7 +238,7 @@ void Shutdown()
 
 void RunCodeHandler(const Core::CPUThreadGuard& guard)
 {
-  if (!Config::Get(Config::MAIN_ENABLE_CHEATS))
+  if (!Config::AreCheatsEnabled())
     return;
 
   // NOTE: Need to release the lock because of GUI deadlocks with PanicAlert in HostWrite_*

Source/Core/Core/HLE/HLE.cpp

@@ -90,7 +90,7 @@ void PatchFixedFunctions(Core::System& system)
 
   // HLE jump to loader (homebrew).  Disabled when Gecko is active as it interferes with the code
   // handler
-  if (!Config::Get(Config::MAIN_ENABLE_CHEATS))
+  if (!Config::AreCheatsEnabled())
   {
     Patch(system, 0x80001800, "HBReload");
     auto& memory = system.GetMemory();

Source/Core/Core/NetPlayServer.cpp

@@ -1356,7 +1356,7 @@ bool NetPlayServer::SetupNetSettings()
   // Copy all relevant settings
   settings.cpu_thread = Config::Get(Config::MAIN_CPU_THREAD);
   settings.cpu_core = Config::Get(Config::MAIN_CPU_CORE);
-  settings.enable_cheats = Config::Get(Config::MAIN_ENABLE_CHEATS);
+  settings.enable_cheats = Config::AreCheatsEnabled();
   settings.selected_language = Config::Get(Config::MAIN_GC_LANGUAGE);
   settings.override_region_settings = Config::Get(Config::MAIN_OVERRIDE_REGION_SETTINGS);
   settings.dsp_hle = Config::Get(Config::MAIN_DSP_HLE);