Function encode_command_as_key

crawl-ref/source/command.cc:1485–1496

}

int encode_command_as_key(command_type cmd) noexcept
{
    // Don't accept buggy commands
    if (cmd < CMD_NO_CMD || cmd >= CMD_MAX_CMD)
        cmd = CMD_NO_CMD;

    // There should be room between the internal keys
    // (CK_MIN_INTERNAL == -1021) and keys with alt set
    // (about -3000 + 255) for command_type to fit
    // (currently 2000 through 2287).
    return -(int)cmd;
}