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NetPlay: Make messages about non-matching games clearer

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This commit is contained in:
Pokechu22
2022-05-20 22:25:33 -07:00
parent ea9b0bff08
commit 2341ff00ab
3 changed files with 73 additions and 25 deletions
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58
Source/Core/UICommon/GameFile.cpp
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@ -720,31 +720,57 @@ GameFile::CompareSyncIdentifier(const NetPlay::SyncIdentifier& sync_identifier)
if ((is_elf_or_dol ? m_file_size : 0) != sync_identifier.dol_elf_size)
return NetPlay::SyncIdentifierComparison::DifferentGame;
const auto trim = [](const std::string& str, size_t n) {
return std::string_view(str.data(), std::min(n, str.size()));
};
if (trim(m_game_id, 3) != trim(sync_identifier.game_id, 3))
if (m_is_datel_disc != sync_identifier.is_datel)
return NetPlay::SyncIdentifierComparison::DifferentGame;
if (m_disc_number != sync_identifier.disc_number || m_is_datel_disc != sync_identifier.is_datel)
if (m_game_id.size() != sync_identifier.game_id.size())
return NetPlay::SyncIdentifierComparison::DifferentGame;
const NetPlay::SyncIdentifierComparison mismatch_result =
is_elf_or_dol || m_is_datel_disc ? NetPlay::SyncIdentifierComparison::DifferentGame :
NetPlay::SyncIdentifierComparison::DifferentVersion;
if (m_game_id != sync_identifier.game_id)
if (!is_elf_or_dol && !m_is_datel_disc && m_game_id.size() >= 4 && m_game_id.size() <= 6)
{
const bool game_id_is_title_id = m_game_id.size() > 6 || sync_identifier.game_id.size() > 6;
return game_id_is_title_id ? NetPlay::SyncIdentifierComparison::DifferentGame : mismatch_result;
// This is a game ID, following specific rules which we can use to give clearer information to
// the user.
// If the first 3 characters don't match, then these are probably different games.
// (There are exceptions; in particular Japanese-region games sometimes use a different ID;
// for instance, GOYE69, GOYP69, and GGIJ13 are used by GoldenEye: Rogue Agent.)
if (std::string_view(&m_game_id[0], 3) != std::string_view(&sync_identifier.game_id[0], 3))
return NetPlay::SyncIdentifierComparison::DifferentGame;
// If the first 3 characters match but the region doesn't match, reject it as such.
if (m_game_id[3] != sync_identifier.game_id[3])
return NetPlay::SyncIdentifierComparison::DifferentRegion;
// If the maker code is present, and doesn't match between the two but the main ID does,
// these might be different revisions of the same game (e.g. a rerelease with a different
// publisher), which we should treat as a different revision.
if (std::string_view(&m_game_id[4]) != std::string_view(&sync_identifier.game_id[4]))
return NetPlay::SyncIdentifierComparison::DifferentRevision;
}
else
{
// Numeric title ID or another generated ID that does not follow the rules above
if (m_game_id != sync_identifier.game_id)
return NetPlay::SyncIdentifierComparison::DifferentGame;
}
if (m_revision != sync_identifier.revision)
return mismatch_result;
return NetPlay::SyncIdentifierComparison::DifferentRevision;
return GetSyncHash() == sync_identifier.sync_hash ? NetPlay::SyncIdentifierComparison::SameGame :
mismatch_result;
if (m_disc_number != sync_identifier.disc_number)
return NetPlay::SyncIdentifierComparison::DifferentDiscNumber;
if (GetSyncHash() != sync_identifier.sync_hash)
{
// Most Datel titles re-use the same game ID (GNHE5d, with that lowercase D, or DTLX01).
// So if the hash differs, then it's probably a different game even if the game ID matches.
if (m_is_datel_disc)
return NetPlay::SyncIdentifierComparison::DifferentGame;
else
return NetPlay::SyncIdentifierComparison::DifferentHash;
}
return NetPlay::SyncIdentifierComparison::SameGame;
}
std::string GameFile::GetWiiFSPath() const