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support B2 patches on BB

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This commit is contained in:
Martin Michelsen
2024-05-05 10:51:13 -07:00
parent 27bbb2c7e4
commit 70413668d8
4 changed files with 83 additions and 12 deletions
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src/ReceiveCommands.cc
+50 -7
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@@ -1071,13 +1071,56 @@ static void on_93_BB(shared_ptr<Client> c, uint16_t, uint32_t, string& data) {
} else {
string version_string = config_data.as_string();
strip_trailing_zeroes(version_string);
// Note: Tethealla PSOBB is actually Japanese PSOBB, but with most of the
// files replaced with English text/graphics/etc. For this reason, it still
// reports its language as Japanese, so we have to account for that
// manually here.
if (starts_with(version_string, "TethVer")) {
c->log.info("Client is TethVer subtype; forcing English language");
c->config.set_flag(Client::Flag::FORCE_ENGLISH_LANGUAGE_BB);
// If the version string starts with "Ver.", assume it's Sega and apply the
// normal version encoding logic. Otherwise, assume it's a community mod,
// almost all of which are based on TethVer12513, so assume that version
// otherwise.
if (true || starts_with(version_string, "Ver.")) {
// Basic algorithm: take all numeric characters from the version string
// and ignore everything else. Treat that as a decimal integer, then
// base36-encode it into the low 3 bytes of specific_version.
uint64_t version = 0;
for (char ch : version_string) {
if (isdigit(ch)) {
version = (version * 10) + (ch - '0');
}
}
uint8_t shift = 0;
uint32_t specific_version = 0;
while (version) {
if (shift > 16) {
throw runtime_error("invalid version string");
}
uint8_t ch = (version % 36) + '0';
version /= 36;
if (ch > '9') {
ch += 7;
}
specific_version |= (ch << shift);
shift += 8;
}
if (!(specific_version & 0x00FF0000)) {
specific_version |= 0x00300000;
}
if (!(specific_version & 0x0000FF00)) {
specific_version |= 0x00003000;
}
if (!(specific_version & 0x000000FF)) {
specific_version |= 0x00000030;
}
c->config.specific_version = 0x35000000 | specific_version;
} else {
c->config.specific_version = 0x35394E4C; // 59NL
// Note: Tethealla PSOBB is actually Japanese PSOBB, but with most of the
// files replaced with English text/graphics/etc. For this reason, it still
// reports its language as Japanese, so we have to account for that
// manually here.
if (starts_with(version_string, "TethVer")) {
c->log.info("Client is TethVer subtype; forcing English language");
c->config.set_flag(Client::Flag::FORCE_ENGLISH_LANGUAGE_BB);
}
}
}
c->channel.language = c->config.check_flag(Client::Flag::FORCE_ENGLISH_LANGUAGE_BB) ? 1 : base_cmd.language;