void FSavegameManager::DoSave(int Selected, const char *savegamestring)
{
if (Selected != 0)
{
auto node = SaveGames[Selected];
G_SaveGame(node->Filename.GetChars(), savegamestring);
}
else
{
// Find an unused filename and save as that
FString filename;
int i;
for (i = 0;; ++i)
{
filename = G_BuildSaveName("save", i);
if (!FileExists(filename))
{
break;
}
}
G_SaveGame(filename, savegamestring);
}
M_ClearMenus();
}
//
// M_ReadSaveStrings
// read the strings from the savegame files
//
void M_ReadSaveStrings(void)
{
FILE *handle;
int count;
int i;
for (i = 0; i < load_end; i++)
{
std::string name;
G_BuildSaveName (name, i);
handle = fopen (name.c_str(), "rb");
if (handle == NULL)
{
strcpy (&savegamestrings[i][0], GStrings(EMPTYSTRING));
LoadMenu[i].status = 0;
}
else
{
count = fread (&savegamestrings[i], SAVESTRINGSIZE, 1, handle);
fclose (handle);
LoadMenu[i].status = 1;
}
}
}
//
// User wants to load this game
//
void M_LoadSelect (int choice)
{
std::string name;
G_BuildSaveName (name, choice);
G_LoadGame ((char *)name.c_str());
gamestate = gamestate == GS_FULLCONSOLE ? GS_HIDECONSOLE : gamestate;
M_ClearMenus ();
if (quickSaveSlot == -2)
{
quickSaveSlot = choice;
}
}
void FSavegameManager::ReadSaveStrings()
{
if (SaveGames.Size() == 0)
{
void *filefirst;
findstate_t c_file;
FString filter;
LastSaved = LastAccessed = -1;
quickSaveSlot = nullptr;
filter = G_BuildSaveName("*." SAVEGAME_EXT, -1);
filefirst = I_FindFirst(filter.GetChars(), &c_file);
if (filefirst != ((void *)(-1)))
{
do
{
// I_FindName only returns the file's name and not its full path
FString filepath = G_BuildSaveName(I_FindName(&c_file), -1);
FResourceFile *savegame = FResourceFile::OpenResourceFile(filepath, true, true);
if (savegame != nullptr)
{
bool oldVer = false;
bool missing = false;
FResourceLump *info = savegame->FindLump("info.json");
if (info == nullptr)
{
// savegame info not found. This is not a savegame so leave it alone.
delete savegame;
continue;
}
void *data = info->CacheLump();
FSerializer arc(nullptr);
if (arc.OpenReader((const char *)data, info->LumpSize))
{
int savever = 0;
arc("Save Version", savever);
FString engine = arc.GetString("Engine");
FString iwad = arc.GetString("Game WAD");
FString title = arc.GetString("Title");
if (engine.Compare(GAMESIG) != 0 || savever > SAVEVER)
{
// different engine or newer version:
// not our business. Leave it alone.
delete savegame;
continue;
}
if (savever < MINSAVEVER)
{
// old, incompatible savegame. List as not usable.
oldVer = true;
}
else if (iwad.CompareNoCase(Wads.GetWadName(Wads.GetIwadNum())) == 0)
{
missing = !G_CheckSaveGameWads(arc, false);
}
else
{
// different game. Skip this.
delete savegame;
continue;
}
FSaveGameNode *node = new FSaveGameNode;
node->Filename = filepath;
node->bOldVersion = oldVer;
node->bMissingWads = missing;
node->SaveTitle = title;
InsertSaveNode(node);
delete savegame;
}
}
else // check for old formats.
{
FileReader file;
if (file.OpenFile(filepath))
{
PNGHandle *png;
char sig[16];
char title[OLDSAVESTRINGSIZE + 1];
bool oldVer = true;
bool addIt = false;
bool missing = false;
// ZDoom 1.23 betas 21-33 have the savesig first.
// Earlier versions have the savesig second.
// Later versions have the savegame encapsulated inside a PNG.
//
// Old savegame versions are always added to the menu so
// the user can easily delete them if desired.
title[OLDSAVESTRINGSIZE] = 0;
if (nullptr != (png = M_VerifyPNG(file)))
{
char *ver = M_GetPNGText(png, "ZDoom Save Version");
if (ver != nullptr)
{
// An old version
if (!M_GetPNGText(png, "Title", title, OLDSAVESTRINGSIZE))
{
strncpy(title, I_FindName(&c_file), OLDSAVESTRINGSIZE);
}
addIt = true;
delete[] ver;
}
delete png;
}
else
{
file.Seek(0, FileReader::SeekSet);
if (file.Read(sig, 16) == 16)
{
if (strncmp(sig, "ZDOOMSAVE", 9) == 0)
{
if (file.Read(title, OLDSAVESTRINGSIZE) == OLDSAVESTRINGSIZE)
{
addIt = true;
}
}
else
{
memcpy(title, sig, 16);
if (file.Read(title + 16, OLDSAVESTRINGSIZE - 16) == OLDSAVESTRINGSIZE - 16 &&
file.Read(sig, 16) == 16 &&
strncmp(sig, "ZDOOMSAVE", 9) == 0)
{
addIt = true;
}
}
}
}
if (addIt)
{
FSaveGameNode *node = new FSaveGameNode;
node->Filename = filepath;
node->bOldVersion = true;
node->bMissingWads = false;
node->SaveTitle = title;
InsertSaveNode(node);
}
}
}
} while (I_FindNext(filefirst, &c_file) == 0);
I_FindClose(filefirst);
}
}
}
