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WAGE: Move some code in saveGame()

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Now flags, version, description and thumbnail are added in the end of
the file, thus making saves compatible with original ones.
This commit is contained in:
Alexander Tkachev 2016-07-27 18:06:39 +06:00
parent 3588351799
commit a4f02c7383
1 changed files with 30 additions and 19 deletions
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49
engines/wage/saveload.cpp
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@ -66,12 +66,16 @@
#define SAVEGAME_CURRENT_VERSION 1
//
// Version 0 (ScummVM): first ScummVM version
// Original saves format is supported.
// ScummVM adds flags, description and thumbnail
// in the end of the file (shouldn't make saves incompatible).
//
// Version 0 (original/ScummVM): first ScummVM version
//
namespace Wage {
static const uint32 AGIflag = MKTAG('W', 'A', 'G', 'E');
static const uint32 WAGEflag = MKTAG('W', 'A', 'G', 'E');
//TODO: make sure these are calculated right: (we add flag, description, etc)
#define VARS_INDEX 0x005E
@ -109,23 +113,6 @@ int WageEngine::saveGame(const Common::String &fileName, const Common::String &d
debug(9, "Successfully opened %s for writing", fileName.c_str());
}
out->writeUint32BE(AGIflag);
// Write description of saved game, limited to WAGE_SAVEDGAME_DESCRIPTION_LEN characters + terminating NUL
const int WAGE_SAVEDGAME_DESCRIPTION_LEN = 127;
char description[WAGE_SAVEDGAME_DESCRIPTION_LEN + 1];
memset(description, 0, sizeof(description));
strncpy(description, descriptionString.c_str(), WAGE_SAVEDGAME_DESCRIPTION_LEN);
assert(WAGE_SAVEDGAME_DESCRIPTION_LEN + 1 == 128); // safety
out->write(description, 128);
out->writeByte(SAVEGAME_CURRENT_VERSION);
debug(9, "Writing save game version (%d)", SAVEGAME_CURRENT_VERSION);
// Thumbnail
Graphics::saveThumbnail(*out);
// Counters
out->writeSint16LE(_world->_scenes.size()); //numScenes
out->writeSint16LE(_world->_chrs.size()); //numChars
@ -280,6 +267,30 @@ int WageEngine::saveGame(const Common::String &fileName, const Common::String &d
out->writeSint16LE(obj->_numberOfUses);
}
// the following is appended by ScummVM
out->writeUint32BE(WAGEflag);
// Write description of saved game, limited to WAGE_SAVEDGAME_DESCRIPTION_LEN characters + terminating NUL
const int WAGE_SAVEDGAME_DESCRIPTION_LEN = 127;
char description[WAGE_SAVEDGAME_DESCRIPTION_LEN + 1];
memset(description, 0, sizeof(description));
strncpy(description, descriptionString.c_str(), WAGE_SAVEDGAME_DESCRIPTION_LEN);
assert(WAGE_SAVEDGAME_DESCRIPTION_LEN + 1 == 128); // safety
out->write(description, 128);
out->writeByte(SAVEGAME_CURRENT_VERSION);
debug(9, "Writing save game version (%d)", SAVEGAME_CURRENT_VERSION);
// Thumbnail
Graphics::saveThumbnail(*out);
// this one to make checking easier:
// it couldn't be added to the beginning
// and we won't be able to find it in the middle,
// so these would be the last 4 bytes of the file
out->writeUint32BE(WAGEflag);
out->finalize();
if (out->err()) {
warning("Can't write file '%s'. (Disk full?)", fileName.c_str());