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SCUMM: Add support for append mode to o72_openFile()

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The baseball2001 hall of fame data saves properly now
This commit is contained in:
Matthew Hoops 2011-04-02 00:59:29 -04:00
parent 211842c2fb
commit dfc8723726
1 changed files with 33 additions and 8 deletions
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39
engines/scumm/he/script_v72he.cpp
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@ -1408,24 +1408,49 @@ void ScummEngine_v72he::o72_openFile() {
if (slot != -1) {
switch (mode) {
case 1:
case 1: // Read mode
if (!_saveFileMan->listSavefiles(filename).empty()) {
_hInFileTable[slot] = _saveFileMan->openForLoading(filename);
} else {
_hInFileTable[slot] = SearchMan.createReadStreamForMember(filename);
}
break;
case 2:
case 2: // Write mode
if (!strchr(filename, '/')) {
_hOutFileTable[slot] = _saveFileMan->openForSaving(filename);
}
break;
case 6:
// FIXME: Appending to saved game file is not supported right now
// This is used in several Backyard Sports games. The stub is required for
// baseball2001 to continue after trying to save Hall of Fame data.
slot = -1;
case 6: { // Append mode
if (strchr(filename, '/'))
break;
// First check if the file already exists
Common::InSaveFile *initialState = 0;
if (!_saveFileMan->listSavefiles(filename).empty())
initialState = _saveFileMan->openForLoading(filename);
else
initialState = SearchMan.createReadStreamForMember(filename);
// Read in the data from the initial file
uint32 initialSize = 0;
byte *initialData = 0;
if (initialState) {
initialSize = initialState->size();
initialData = new byte[initialSize];
initialState->read(initialData, initialSize);
delete initialState;
}
// Attempt to open a save file
_hOutFileTable[slot] = _saveFileMan->openForSaving(filename);
// Begin us off with the data from the previous file
if (_hOutFileTable[slot] && initialData) {
_hOutFileTable[slot]->write(initialData, initialSize);
delete[] initialData;
}
} break;
default:
error("o72_openFile(): wrong open file mode %d", mode);
}