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psx: add cheats (#551)

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* PSX: implement game ID

* initialize cheats for PSX
This commit is contained in:
Marcoen Hirschberg
2022-02-21 17:31:51 +01:00
committed by GitHub
parent 9ace959408
commit 652a8423d3
4 changed files with 110 additions and 1 deletions
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41
cheats.cpp
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@@ -122,6 +122,36 @@ static int find_in_same_dir(const char *name)
return 0;
}
bool cheat_init_psx(mz_zip_archive* _z, const char* rom_path)
{
// lookup based on file name
const char *rom_name = strrchr(rom_path, '/');
if (rom_name)
{
sprintf(cheat_zip, "%s/cheats/%s%s", getRootDir(), CoreName, rom_name);
char *p = strrchr(cheat_zip, '.');
if (p) *p = 0;
strcat(cheat_zip, ".zip");
printf("Trying cheat file: %s\n", cheat_zip);
memset(_z, 0, sizeof(mz_zip_archive));
if (mz_zip_reader_init_file(_z, cheat_zip, 0)) return true;
}
// lookup based on game ID
const char* game_id = psx_get_game_id();
if (game_id && game_id[0])
{
sprintf(cheat_zip, "%s/cheats/%s/%s.zip", getRootDir(), CoreName, psx_get_game_id());
printf("Trying cheat file: %s\n", cheat_zip);
memset(_z, 0, sizeof(mz_zip_archive));
if (mz_zip_reader_init_file(_z, cheat_zip, 0)) return true;
}
return false;
}
void cheats_init(const char *rom_path, uint32_t romcrc)
{
cheats.clear();
@@ -143,7 +173,16 @@ void cheats_init(const char *rom_path, uint32_t romcrc)
}
mz_zip_archive _z = {};
if (!mz_zip_reader_init_file(&_z, cheat_zip, 0))
if (is_psx() && !mz_zip_reader_init_file(&_z, cheat_zip, 0))
{
if (!cheat_init_psx(&_z, rom_path))
{
printf("no cheat file found\n");
return;
}
}
else if (!mz_zip_reader_init_file(&_z, cheat_zip, 0))
{
memset(&_z, 0, sizeof(_z));
if (!(pcecd_using_cd() || is_megacd()) || !find_in_same_dir(rom_path) || !mz_zip_reader_init_file(&_z, cheat_zip, 0))