Merge pull request #298 from Sergeanur/save

save
2024-12-23 09:20:02 +00:00 · 2020-01-31 12:57:25 +01:00 · 2020-01-31 12:57:25 +01:00 · 8b367e8d18
parent e1e76f510e 3c550eb679
commit 8b367e8d18
12 changed files with 614 additions and 61 deletions
--- a/premake5.lua
+++ b/premake5.lua
@ -13,6 +13,7 @@ workspace "re3"
 	files { "src/objects/*.*" }
 	files { "src/peds/*.*" }
 	files { "src/render/*.*" }
+	files { "src/save/*.*" }
 	files { "src/skel/*.*" }
 	files { "src/skel/win/*.*" }
 	files { "src/text/*.*" }
@ -31,6 +32,7 @@ workspace "re3"
 	includedirs { "src/objects" }
 	includedirs { "src/peds" }
 	includedirs { "src/render" }
+	includedirs { "src/save/" }
 	includedirs { "src/skel/" }
 	includedirs { "src/skel/win" }
 	includedirs { "src/text" }
--- a/src/core/ControllerConfig.cpp
+++ b/src/core/ControllerConfig.cpp
@ -16,7 +16,7 @@
 #include "ModelIndices.h"
 #include "Camera.h"
 #include "win.h"
-#include "PCSave.h"
+#include "GenericGameStorage.h"

 CControllerConfigManager &ControlsManager = *(CControllerConfigManager*)0x8F43A4;

--- a/src/core/Frontend.cpp
+++ b/src/core/Frontend.cpp
@ -15,7 +15,7 @@
 #include "Streaming.h"
 #include "TxdStore.h"
 #include "General.h"
-#include "PCSave.h"
+#include "GenericGameStorage.h"
 #include "Script.h"
 #include "Camera.h"
 #include "MenuScreens.h"
@ -448,7 +448,7 @@ void CMenuManager::Draw()
 				str = TheText.Get(aScreens[m_nCurrScreen].m_aEntries[0].m_EntryName);
 			break;
 		case MENUPAGE_SAVE_OVERWRITE_CONFIRM:
-			if (Slots[m_nCurrSaveSlot] == 1)
+			if (Slots[m_nCurrSaveSlot] == SLOT_EMPTY)
 				str = TheText.Get("FESZ_QZ");
 			else
 				str = TheText.Get(aScreens[m_nCurrScreen].m_aEntries[0].m_EntryName);
@ -588,7 +588,7 @@ void CMenuManager::Draw()
 				CFont::SetRightJustifyOff();
 				textToPrint[MENUCOLUMN_LEFT] = GetNameOfSavedGame(i - 1);

-				if (Slots[i-1] != 1)
+				if (Slots[i-1] != SLOT_EMPTY)
 					textToPrint[MENUCOLUMN_RIGHT] = GetSavedGameDateAndTime(i - 1);

 				if (textToPrint[MENUCOLUMN_LEFT][0] == '\0') {
@ -2228,40 +2228,37 @@ void CMenuManager::ResetHelperText()

 void CMenuManager::SaveLoadFileError_SetUpErrorScreen()
 {
-	// TO-DO: Enum
-	switch (PcSaveHelper.m_nHelper) {
-		case 1:
-		case 2:
-		case 3:
+	switch (PcSaveHelper.nErrorCode) {
+		case SAVESTATUS_ERR_SAVE_CREATE:
+		case SAVESTATUS_ERR_SAVE_WRITE:
+		case SAVESTATUS_ERR_SAVE_CLOSE:
 			m_nPrevScreen = m_nCurrScreen;
 			m_nCurrScreen = MENUPAGE_SAVE_FAILED;
 			m_nCurrOption = 0;
 			m_nScreenChangeDelayTimer = CTimer::GetTimeInMillisecondsPauseMode();
 			break;
-		case 4:
-		case 5:	
-		case 6:
+		case SAVESTATUS_ERR_LOAD_OPEN:
+		case SAVESTATUS_ERR_LOAD_READ:
+		case SAVESTATUS_ERR_LOAD_CLOSE:
 			m_nPrevScreen = m_nCurrScreen;
 			m_nCurrScreen = MENUPAGE_LOAD_FAILED;
 			m_nCurrOption = 0;
 			m_nScreenChangeDelayTimer = CTimer::GetTimeInMillisecondsPauseMode();
 			break;
-		case 7:
+		case SAVESTATUS_ERR_DATA_INVALID:
 			m_nPrevScreen = m_nCurrScreen;
 			m_nCurrScreen = MENUPAGE_LOAD_FAILED_2;
 			m_nCurrOption = 0;
 			m_nScreenChangeDelayTimer = CTimer::GetTimeInMillisecondsPauseMode();
 			break;
-		case 8:
-		case 9:
-		case 10:
+		case SAVESTATUS_DELETEFAILED8:
+		case SAVESTATUS_DELETEFAILED9:
+		case SAVESTATUS_DELETEFAILED10:
 			m_nPrevScreen = m_nCurrScreen;
 			m_nCurrScreen = MENUPAGE_DELETE_FAILED;
 			m_nCurrOption = 0;
 			m_nScreenChangeDelayTimer = CTimer::GetTimeInMillisecondsPauseMode();
 			break;
-		default:
-			return;
 	}
 }

--- a/src/core/PCSave.cpp
+++ b/src/core/PCSave.cpp
@ -1,20 +0,0 @@
-#include "common.h"
-#include "patcher.h"
-#include "Frontend.h"
-#include "PCSave.h"
-
-WRAPPER void C_PcSave::SetSaveDirectory(const char *path) { EAXJMP(0x591EA0); }
-WRAPPER int8 C_PcSave::PopulateSlotInfo() { EAXJMP(0x592090); }
-WRAPPER int8 C_PcSave::DeleteSlot(int) { EAXJMP(0x5922F0); }
-WRAPPER int8 C_PcSave::SaveSlot(int) { EAXJMP(0x591EC0); }
-
-WRAPPER int8 CheckSlotDataValid(int) { EAXJMP(0x591A40); }
-
-WRAPPER wchar *GetNameOfSavedGame(int counter) { EAXJMP(0x591B60); }
-WRAPPER wchar *GetSavedGameDateAndTime(int counter) { EAXJMP(0x591B50); }
-
-
-C_PcSave PcSaveHelper = *(C_PcSave*)0x8E2C60;
-int *Slots = (int*)0x728040;
-int *SlotFileName = (int*)0x6F07C8;
-int *SlotSaveDate = (int*)0x72B858;
--- a/src/core/PCSave.h
+++ b/src/core/PCSave.h
@ -1,23 +0,0 @@
-#pragma once
-
-class C_PcSave
-{
-public:
-	int32 m_nHelper;
-
-	static void SetSaveDirectory(const char *path);
-	int8 PopulateSlotInfo();
-	int8 DeleteSlot(int);
-	int8 SaveSlot(int);
-};
-
-extern int8 CheckSlotDataValid(int);
-extern wchar *GetNameOfSavedGame(int counter);
-extern wchar *GetSavedGameDateAndTime(int counter);
-
-extern C_PcSave PcSaveHelper;
-extern int *Slots;
-extern int *SlotFileName;
-extern int *SlotSaveDate;
-
-const char TopLineEmptyFile[] = "THIS FILE IS NOT VALID YET";
--- a/src/core/main.h
+++ b/src/core/main.h
@ -19,6 +19,8 @@ extern wchar *gUString2;
 extern bool &b_FoundRecentSavedGameWantToLoad;
 extern bool gbPrintShite;
 extern bool &gbModelViewer;
+extern bool &StillToFadeOut;
+extern bool &JustLoadedDontFadeInYet;

 class CSprite2d;

--- a/src/save/Date.cpp
+++ b/src/save/Date.cpp
@ -0,0 +1,91 @@
+#include "common.h"
+#include "Date.h"
+
+CDate::CDate()
+{
+	m_nYear = 0;
+	m_nSecond = 0;
+	m_nMinute = 0;
+	m_nHour = 0;
+	m_nDay = 0;
+	m_nMonth = 0;
+}
+
+bool
+CDate::operator>(const CDate &right)
+{
+	if (m_nYear > right.m_nYear)
+		return true;
+	if (m_nYear != right.m_nYear)
+		return false;
+
+	if (m_nMonth > right.m_nMonth)
+		return true;
+	if (m_nMonth != right.m_nMonth)
+		return false;
+
+	if (m_nDay > right.m_nDay)
+		return true;
+	if (m_nDay != right.m_nDay)
+		return false;
+
+	if (m_nHour > right.m_nHour)
+		return true;
+	if (m_nHour != right.m_nHour)
+		return false;
+
+	if (m_nMinute > right.m_nMinute)
+		return true;
+	if (m_nMinute != right.m_nMinute)
+		return false;
+	return m_nSecond > right.m_nSecond;
+}
+
+bool
+CDate::operator<(const CDate &right)
+{
+	if (m_nYear < right.m_nYear)
+		return true;
+	if (m_nYear != right.m_nYear)
+		return false;
+
+	if (m_nMonth < right.m_nMonth)
+		return true;
+	if (m_nMonth != right.m_nMonth)
+		return false;
+
+	if (m_nDay < right.m_nDay)
+		return true;
+	if (m_nDay != right.m_nDay)
+		return false;
+
+	if (m_nHour < right.m_nHour)
+		return true;
+	if (m_nHour != right.m_nHour)
+		return false;
+
+	if (m_nMinute < right.m_nMinute)
+		return true;
+	if (m_nMinute != right.m_nMinute)
+		return false;
+	return m_nSecond < right.m_nSecond;
+}
+
+bool
+CDate::operator==(const CDate &right)
+{
+	if (m_nYear != right.m_nYear || m_nMonth != right.m_nMonth || m_nDay != right.m_nDay || m_nHour != right.m_nHour || m_nMinute != right.m_nMinute)
+		return false;
+	return m_nSecond == right.m_nSecond;
+}
+
+void
+CDate::PopulateDateFields(int8 &second, int8 &minute, int8 &hour, int8 &day, int8 &month, int16 year)
+{
+	m_nSecond = second;
+	m_nMinute = minute;
+	m_nHour = hour;
+	m_nDay = day;
+	m_nMonth = month;
+	m_nYear = year;
+}
--- a/src/save/Date.h
+++ b/src/save/Date.h
@ -0,0 +1,18 @@
+#pragma once
+
+class CDate
+{
+public:
+	int m_nSecond;
+	int m_nMinute;
+	int m_nHour;
+	int m_nDay;
+	int m_nMonth;
+	int m_nYear;
+	
+	CDate();
+	bool operator>(const CDate &right);
+	bool operator<(const CDate &right);
+	bool operator==(const CDate &right);
+	void PopulateDateFields(int8 &second, int8 &minute, int8 &hour, int8 &day, int8 &month, int16 year);
+};
--- a/src/save/GenericGameStorage.cpp
+++ b/src/save/GenericGameStorage.cpp
@ -0,0 +1,267 @@
+#include "common.h"
+#include "main.h"
+#include "patcher.h"
+#include "Camera.h"
+#include "Clock.h"
+#include "Date.h"
+#include "FileMgr.h"
+#include "GameLogic.h"
+#include "Garages.h"
+#include "GenericGameStorage.h"
+#include "PCSave.h"
+#include "PlayerPed.h"
+#include "Pools.h"
+#include "Script.h"
+#include "Streaming.h"
+#include "World.h"
+
+const int SIZE_OF_ONE_GAME_IN_BYTES = 201729;
+
+char (&DefaultPCSaveFileName)[260] = *(char(*)[260])*(uintptr*)0x8E28C0;
+char (&ValidSaveName)[260] = *(char(*)[260])*(uintptr*)0x8E2CBC;
+char (&LoadFileName)[256] = *(char(*)[256])*(uintptr*)0x9403C4;
+wchar (&SlotFileName)[SLOT_COUNT][260] = *(wchar(*)[SLOT_COUNT][260])*(uintptr*)0x6F07C8;
+wchar (&SlotSaveDate)[SLOT_COUNT][70] = *(wchar(*)[SLOT_COUNT][70])*(uintptr*)0x72B858;
+int &CheckSum = *(int*)0x8E2BE0;
+eLevelName &m_LevelToLoad = *(eLevelName*)0x8E29CC;
+char SaveFileNameJustSaved[260];
+int (&Slots)[SLOT_COUNT+1] = *(int(*)[SLOT_COUNT+1])*(uintptr*)0x72803C;
+CDate &CompileDateAndTime = *(CDate*)0x72BCB8;
+
+C_PcSave &PcSaveHelper = *(C_PcSave*)0x8E2C60;
+
+#define ReadDataFromBufferPointer(buf, to) memcpy(&to, buf, sizeof(to)); buf += align4bytes(sizeof(to));
+#define WriteDataToBufferPointer(buf, from) memcpy(buf, &from, sizeof(from)); buf += align4bytes(sizeof(from));
+
+WRAPPER bool GenericSave(int file) { EAXJMP(0x58F8D0); }
+WRAPPER bool GenericLoad() { EAXJMP(0x590A00); }
+
+bool
+ReadInSizeofSaveFileBuffer(int32 &file, uint32 &size)
+{
+	file = CFileMgr::OpenFile(LoadFileName, "rb");
+	if (file == 0) {
+		PcSaveHelper.nErrorCode = SAVESTATUS_ERR_LOAD_OPEN;
+		return false;
+	}
+	CFileMgr::Read(file, (const char*)&size, sizeof(size));
+	if (CFileMgr::GetErrorReadWrite(file)) {
+		PcSaveHelper.nErrorCode = SAVESTATUS_ERR_LOAD_READ;
+		if (!CloseFile(file))
+			PcSaveHelper.nErrorCode = SAVESTATUS_ERR_LOAD_CLOSE;
+		return false;
+	}
+	return true;
+}
+
+bool
+ReadDataFromFile(int32 file, uint8 *buf, uint32 size)
+{
+	if (file == 0) {
+		PcSaveHelper.nErrorCode = SAVESTATUS_ERR_LOAD_OPEN;
+		return false;
+	}
+	size_t read_size = CFileMgr::Read(file, (const char*)buf, size);
+	if (CFileMgr::GetErrorReadWrite(file) || read_size != size) {
+		PcSaveHelper.nErrorCode = SAVESTATUS_ERR_LOAD_READ;
+		if (!CloseFile(file))
+			PcSaveHelper.nErrorCode = SAVESTATUS_ERR_LOAD_CLOSE;
+		return false;
+	}
+	return true;
+}
+
+bool
+CloseFile(int32 file)
+{
+	return CFileMgr::CloseFile(file) == 0;
+}
+
+void
+DoGameSpecificStuffAfterSucessLoad()
+{
+	StillToFadeOut = true;
+	JustLoadedDontFadeInYet = true;
+	CTheScripts::Process();
+}
+
+bool
+CheckSlotDataValid(int32 slot)
+{
+	PcSaveHelper.nErrorCode = SAVESTATUS_SUCCESSFUL;
+	if (CheckDataNotCorrupt(slot, LoadFileName)) {
+		CStreaming::DeleteAllRwObjects();
+		return true;
+	}
+
+	PcSaveHelper.nErrorCode = SAVESTATUS_ERR_DATA_INVALID;
+	return false;
+}
+
+void
+MakeSpaceForSizeInBufferPointer(uint8 *&presize, uint8 *&buf, uint8 *&postsize)
+{
+	presize = buf;
+	buf += sizeof(uint32);
+	postsize = buf;
+}
+
+void
+CopySizeAndPreparePointer(uint8 *&buf, uint8 *&postbuf, uint8 *&postbuf2, uint32 &unused, uint32 &size)
+{
+	memcpy(buf, &size, sizeof(size));
+	size = align4bytes(size);
+	postbuf2 += size;
+	postbuf = postbuf2;
+}
+
+void
+DoGameSpecificStuffBeforeSave()
+{
+	CGameLogic::PassTime(360);
+	CPlayerPed *ped = FindPlayerPed();
+	ped->m_fCurrentStamina = ped->m_fMaxStamina;
+	CGame::TidyUpMemory(true, false);
+}
+
+
+void
+MakeValidSaveName(int32 slot)
+{
+	ValidSaveName[0] = '\0';
+	sprintf(ValidSaveName, "%s%i", DefaultPCSaveFileName, slot + 1);
+	strncat(ValidSaveName, ".b", 5);
+}
+
+wchar *
+GetSavedGameDateAndTime(int32 slot)
+{
+	return SlotSaveDate[slot];
+}
+
+wchar *
+GetNameOfSavedGame(int32 slot)
+{
+	return SlotFileName[slot];
+}
+
+bool
+CheckDataNotCorrupt(int32 slot, char *name)
+{
+	char filename[100];
+
+	int32 blocknum = 0;
+	eLevelName level = LEVEL_NONE;
+	CheckSum = 0;
+	uint32 bytes_pocessed = 0;
+	sprintf(filename, "%s%i%s", DefaultPCSaveFileName, slot + 1, ".b");
+	int file = CFileMgr::OpenFile(filename, "rb");
+	if (file == 0)
+		return false;
+	strcpy(name, filename);
+	while (SIZE_OF_ONE_GAME_IN_BYTES - sizeof(uint32) - bytes_pocessed > 0 && blocknum < 40) {
+		int32 blocksize;
+		if (!ReadDataFromFile(file, (uint8*)&blocksize, sizeof(blocksize))) {
+			CloseFile(file);
+			return false;
+		}
+		if (blocksize > align4bytes(sizeof(work_buff)))
+			blocksize = sizeof(work_buff) - sizeof(uint32);
+		if (!ReadDataFromFile(file, work_buff, align4bytes(blocksize))) {
+			CloseFile(file);
+			return false;
+		}
+
+		CheckSum += ((uint8*)&blocksize)[0];
+		CheckSum += ((uint8*)&blocksize)[1];
+		CheckSum += ((uint8*)&blocksize)[2];
+		CheckSum += ((uint8*)&blocksize)[3];
+		uint8 *_work_buf = work_buff;
+		for (int i = 0; i < align4bytes(blocksize); i++) {
+			CheckSum += *_work_buf++;
+			bytes_pocessed++;
+		}
+
+		if (blocknum == 0)
+			memcpy(&level, work_buff+4, sizeof(level));
+		blocknum++;
+	}
+	int32 _checkSum;
+	if (ReadDataFromFile(file, (uint8*)&_checkSum, sizeof(_checkSum))) {
+		if (CloseFile(file)) {
+			if (CheckSum == _checkSum) {
+				m_LevelToLoad = level;
+				return true;
+			}
+			return false;
+		}
+		return false;
+	}
+
+	CloseFile(file);
+	return false;
+}
+
+bool
+RestoreForStartLoad()
+{
+	uint8 buf[999];
+
+	int file = CFileMgr::OpenFile(LoadFileName, "rb");
+	if (file == 0) {
+		PcSaveHelper.nErrorCode = SAVESTATUS_ERR_LOAD_OPEN;
+		return false;
+	}
+	ReadDataFromFile(file, buf, sizeof(buf));
+	if (CFileMgr::GetErrorReadWrite(file)) {
+		PcSaveHelper.nErrorCode = SAVESTATUS_ERR_LOAD_READ;
+		if (!CloseFile(file))
+			PcSaveHelper.nErrorCode = SAVESTATUS_ERR_LOAD_CLOSE;
+		return false;
+	} else {
+		uint8 *_buf = buf + sizeof(int32) + sizeof(wchar[24]) + sizeof(SYSTEMTIME) + sizeof(SIZE_OF_ONE_GAME_IN_BYTES);
+		ReadDataFromBufferPointer(_buf, CGame::currLevel);
+		ReadDataFromBufferPointer(_buf, TheCamera.GetPosition().x);
+		ReadDataFromBufferPointer(_buf, TheCamera.GetPosition().y);
+		ReadDataFromBufferPointer(_buf, TheCamera.GetPosition().z);
+		CStreaming::RemoveUnusedBigBuildings(CGame::currLevel);
+		CStreaming::RemoveUnusedBuildings(CGame::currLevel);
+		CCollision::SortOutCollisionAfterLoad();
+		CStreaming::RequestBigBuildings(CGame::currLevel);
+		CStreaming::LoadAllRequestedModels(false);
+		CStreaming::HaveAllBigBuildingsLoaded(CGame::currLevel);
+		CGame::TidyUpMemory(true, false);
+
+		if (CloseFile(file)) {
+			return true;
+		} else {
+			PcSaveHelper.nErrorCode = SAVESTATUS_ERR_LOAD_CLOSE;
+			return false;
+		}
+	}
+}
+
+int
+align4bytes(int32 size)
+{
+	return (size + 3) & 0xFFFFFFFC;
+}
+
+STARTPATCHES
+	//InjectHook(0x58F8D0, GenericSave, PATCH_JUMP);
+	//InjectHook(0x590A00, GenericLoad, PATCH_JUMP);
+	InjectHook(0x591910, ReadInSizeofSaveFileBuffer, PATCH_JUMP);
+	InjectHook(0x591990, ReadDataFromFile, PATCH_JUMP);
+	InjectHook(0x591A00, CloseFile, PATCH_JUMP);
+	InjectHook(0x591A20, DoGameSpecificStuffAfterSucessLoad, PATCH_JUMP);
+	InjectHook(0x591A40, CheckSlotDataValid, PATCH_JUMP);
+	InjectHook(0x591A80, MakeSpaceForSizeInBufferPointer, PATCH_JUMP);
+	InjectHook(0x591AA0, CopySizeAndPreparePointer, PATCH_JUMP);
+	InjectHook(0x591AE0, DoGameSpecificStuffBeforeSave, PATCH_JUMP);
+	InjectHook(0x591B10, MakeValidSaveName, PATCH_JUMP);
+	InjectHook(0x591B50, GetSavedGameDateAndTime, PATCH_JUMP);
+	InjectHook(0x591B60, GetNameOfSavedGame, PATCH_JUMP);
+	InjectHook(0x591B70, CheckDataNotCorrupt, PATCH_JUMP);
+	InjectHook(0x591D60, RestoreForStartLoad, PATCH_JUMP);
+	InjectHook(0x591E80, align4bytes, PATCH_JUMP);
+ENDPATCHES
--- a/src/save/GenericGameStorage.h
+++ b/src/save/GenericGameStorage.h
@ -0,0 +1,38 @@
+#pragma once
+
+#include "PCSave.h"
+
+#define SLOT_COUNT (8)
+
+bool GenericSave(int file);
+bool GenericLoad();
+bool ReadInSizeofSaveFileBuffer(int32 &file, uint32 &size);
+bool ReadDataFromFile(int32 file, uint8 *buf, uint32 size);
+bool CloseFile(int32 file);
+void DoGameSpecificStuffAfterSucessLoad();
+bool CheckSlotDataValid(int32 slot);
+void MakeSpaceForSizeInBufferPointer(uint8 *&presize, uint8 *&buf, uint8 *&postsize);
+void CopySizeAndPreparePointer(uint8 *&buf, uint8 *&postbuf, uint8 *&postbuf2, uint32 &unused, uint32 &size);
+void DoGameSpecificStuffBeforeSave();
+void MakeValidSaveName(int32 slot);
+wchar *GetSavedGameDateAndTime(int32 slot);
+wchar *GetNameOfSavedGame(int32 slot);
+bool CheckDataNotCorrupt(int32 slot, char *name);
+bool RestoreForStartLoad();
+int align4bytes(int32 size);
+
+extern class CDate& CompileDateAndTime;
+
+extern char (&DefaultPCSaveFileName)[260];
+extern char (&ValidSaveName)[260];
+extern char (&LoadFileName)[256];
+extern wchar (&SlotFileName)[SLOT_COUNT][260];
+extern wchar (&SlotSaveDate)[SLOT_COUNT][70];
+extern int &CheckSum;
+extern enum eLevelName &m_LevelToLoad;
+extern int (&Slots)[SLOT_COUNT+1];
+
+extern char SaveFileNameJustSaved[260]; // 8F2570
+
+const char TopLineEmptyFile[] = "THIS FILE IS NOT VALID YET";
+extern C_PcSave &PcSaveHelper;
--- a/src/save/PCSave.cpp
+++ b/src/save/PCSave.cpp
@ -0,0 +1,143 @@
+#include "common.h"
+#include "patcher.h"
+#include "FileMgr.h"
+#include "GenericGameStorage.h"
+#include "Messages.h"
+#include "PCSave.h"
+#include "Text.h"
+
+const char* _psGetUserFilesFolder();
+
+void
+C_PcSave::SetSaveDirectory(const char *path)
+{
+	sprintf(DefaultPCSaveFileName, "%s\\%s", path, "GTA3sf");
+}
+
+bool
+C_PcSave::DeleteSlot(int32 slot)
+{
+	char FileName[200];
+
+	PcSaveHelper.nErrorCode = SAVESTATUS_SUCCESSFUL;
+	sprintf(FileName, "%s%i.b", DefaultPCSaveFileName, slot + 1);
+	DeleteFile(FileName);
+	SlotSaveDate[slot][0] = '\0';
+	return true;
+}
+
+bool
+C_PcSave::SaveSlot(int32 slot)
+{
+	MakeValidSaveName(slot);
+	PcSaveHelper.nErrorCode = SAVESTATUS_SUCCESSFUL;
+	_psGetUserFilesFolder();
+	int file = CFileMgr::OpenFile(ValidSaveName, "wb");
+	if (file != 0) {
+		DoGameSpecificStuffBeforeSave();
+		if (GenericSave(file)) {
+			if (CFileMgr::CloseFile(file) != 0)
+				nErrorCode = SAVESTATUS_ERR_SAVE_CLOSE;
+			return true;
+		}
+
+		return false;
+	}
+	PcSaveHelper.nErrorCode = SAVESTATUS_ERR_SAVE_CREATE;
+	return false;
+}
+
+bool
+C_PcSave::PcClassSaveRoutine(int32 file, uint8 *data, uint32 size)
+{
+	CFileMgr::Write(file, (const char*)&size, sizeof(size));
+	if (CFileMgr::GetErrorReadWrite(file)) {
+		nErrorCode = SAVESTATUS_ERR_SAVE_WRITE;
+		strncpy(SaveFileNameJustSaved, ValidSaveName, 259);
+		return false;
+	}
+
+	CFileMgr::Write(file, (const char*)data, align4bytes(size));
+	CheckSum += ((uint8*)&size)[0];
+	CheckSum += ((uint8*)&size)[1];
+	CheckSum += ((uint8*)&size)[2];
+	CheckSum += ((uint8*)&size)[3];
+	for (int i = 0; i < align4bytes(size); i++) {
+		CheckSum += *data++;
+	}
+	if (CFileMgr::GetErrorReadWrite(file)) {
+		nErrorCode = SAVESTATUS_ERR_SAVE_WRITE;
+		strncpy(SaveFileNameJustSaved, ValidSaveName, 259);
+		return false;
+	}
+
+	return true;
+}
+
+void
+C_PcSave::PopulateSlotInfo()
+{
+	for (int i = 0; i < SLOT_COUNT; i++) {
+		Slots[i + 1] = SLOT_EMPTY;
+		SlotFileName[i][0] = '\0';
+		SlotSaveDate[i][0] = '\0';
+	}
+	for (int i = 0; i < SLOT_COUNT; i++) {
+		char savename[52];
+		struct {
+			int size;
+			wchar FileName[24];
+			_SYSTEMTIME SaveDateTime;
+		} header;
+		sprintf(savename, "%s%i%s", DefaultPCSaveFileName, i + 1, ".b");
+		int file = CFileMgr::OpenFile(savename, "rb");
+		if (file != 0) {
+			CFileMgr::Read(file, (char*)&header, sizeof(header));
+			if (strncmp((char*)&header, TopLineEmptyFile, sizeof(TopLineEmptyFile)-1) != 0) {
+				Slots[i + 1] = SLOT_OK;
+				memcpy(SlotFileName[i], &header.FileName, sizeof(header.FileName));
+				
+				SlotFileName[i][24] = '\0';
+			}
+			CFileMgr::CloseFile(file);
+		}
+		if (Slots[i + 1] == SLOT_OK) {
+			if (CheckDataNotCorrupt(i, savename)) {
+				_SYSTEMTIME st;
+				memcpy(&st, &header.SaveDateTime, sizeof(_SYSTEMTIME));
+				const char *month;
+				switch (st.wMonth)
+				{
+				case 1: month = "JAN"; break;
+				case 2: month = "FEB"; break;
+				case 3: month = "MAR"; break;
+				case 4: month = "APR"; break;
+				case 5: month = "MAY"; break;
+				case 6: month = "JUN"; break;
+				case 7: month = "JUL"; break;
+				case 8: month = "AUG"; break;
+				case 9: month = "SEP"; break;
+				case 10: month = "OCT"; break;
+				case 11: month = "NOV"; break;
+				case 12: month = "DEC"; break;
+				default: assert(0);
+				}
+				char date[70];
+				sprintf(date, "%02d %s %04d %02d:%02d:%02d", st.wDay, UnicodeToAsciiForSaveLoad(TheText.Get(month)), st.wYear, st.wHour, st.wMinute, st.wSecond);
+				AsciiToUnicode(date, SlotSaveDate[i]);
+
+			} else {
+				CMessages::InsertNumberInString(TheText.Get("FEC_SLC"), i + 1, -1, -1, -1, -1, -1, SlotFileName[i]);
+				Slots[i + 1] = SLOT_CORRUPTED;
+			}
+		}
+	}
+}
+
+STARTPATCHES
+	InjectHook(0x591EA0, C_PcSave::SetSaveDirectory, PATCH_JUMP);
+	InjectHook(0x5922F0, &C_PcSave::DeleteSlot, PATCH_JUMP);
+	InjectHook(0x591EC0, &C_PcSave::SaveSlot, PATCH_JUMP);
+	InjectHook(0x591F80, &C_PcSave::PcClassSaveRoutine, PATCH_JUMP);
+	InjectHook(0x592090, &C_PcSave::PopulateSlotInfo, PATCH_JUMP);
+ENDPATCHES
--- a/src/save/PCSave.h
+++ b/src/save/PCSave.h
@ -0,0 +1,38 @@
+#pragma once
+
+enum eSaveStatus
+{
+	SAVESTATUS_SUCCESSFUL = 0,
+	SAVESTATUS_ERR_SAVE_CREATE,
+	SAVESTATUS_ERR_SAVE_WRITE,
+	SAVESTATUS_ERR_SAVE_CLOSE,
+	SAVESTATUS_ERR_LOAD_OPEN,
+	SAVESTATUS_ERR_LOAD_READ,
+	SAVESTATUS_ERR_LOAD_CLOSE,
+	SAVESTATUS_ERR_DATA_INVALID,
+
+	// unused
+	SAVESTATUS_DELETEFAILED8,
+	SAVESTATUS_DELETEFAILED9,
+	SAVESTATUS_DELETEFAILED10,
+};
+
+enum
+{
+	SLOT_OK = 0,
+	SLOT_EMPTY,
+	SLOT_CORRUPTED
+};
+
+class C_PcSave
+{
+public:
+	eSaveStatus nErrorCode;
+
+	C_PcSave() : nErrorCode(SAVESTATUS_SUCCESSFUL) {}
+	void PopulateSlotInfo();
+	bool DeleteSlot(int32 slot);
+	bool SaveSlot(int32 slot);
+	bool PcClassSaveRoutine(int32 a2, uint8 *data, uint32 size);
+	static void SetSaveDirectory(const char *path);
+};