void GameLoop()
{
ProcessAsyncSaveFinish();
/* autosave game? */
if (_do_autosave) {
_do_autosave = false;
DoAutosave();
SetWindowDirty(WC_STATUS_BAR, 0);
}
/* switch game mode? */
if (_switch_mode != SM_NONE) {
SwitchToMode(_switch_mode);
_switch_mode = SM_NONE;
}
IncreaseSpriteLRU();
InteractiveRandom();
extern int _caret_timer;
_caret_timer += 3;
CursorTick();
#ifdef ENABLE_NETWORK
/* Check for UDP stuff */
if (_network_available) NetworkUDPGameLoop();
if (_networking && !IsGeneratingWorld()) {
/* Multiplayer */
NetworkGameLoop();
} else {
if (_network_reconnect > 0 && --_network_reconnect == 0) {
/* This means that we want to reconnect to the last host
* We do this here, because it means that the network is really closed */
NetworkClientConnectGame(NetworkAddress(_settings_client.network.last_host, _settings_client.network.last_port), COMPANY_SPECTATOR);
}
/* Singleplayer */
StateGameLoop();
}
/* Check chat messages roughly once a second. */
static uint check_message = 0;
if (++check_message > 1000 / MILLISECONDS_PER_TICK) {
check_message = 0;
NetworkChatMessageLoop();
}
#else
StateGameLoop();
#endif /* ENABLE_NETWORK */
if (!_pause_mode && HasBit(_display_opt, DO_FULL_ANIMATION)) DoPaletteAnimations();
if (!_pause_mode || _game_mode == GM_EDITOR || _settings_game.construction.command_pause_level > CMDPL_NO_CONSTRUCTION) MoveAllTextEffects();
InputLoop();
_sound_driver->MainLoop();
MusicLoop();
}
/**
* Actual game loop for the client.
* @return Whether everything went okay, or not.
*/
/* static */ bool ClientNetworkGameSocketHandler::GameLoop()
{
_frame_counter++;
NetworkExecuteLocalCommandQueue();
extern void StateGameLoop();
StateGameLoop();
/* Check if we are in sync! */
if (_sync_frame != 0) {
if (_sync_frame == _frame_counter) {
#ifdef NETWORK_SEND_DOUBLE_SEED
if (_sync_seed_1 != _random.state[0] || _sync_seed_2 != _random.state[1]) {
#else
if (_sync_seed_1 != _random.state[0]) {
#endif
NetworkError(STR_NETWORK_ERROR_DESYNC);
DEBUG(desync, 1, "sync_err: %08x; %02x", _date, _date_fract);
DEBUG(net, 0, "Sync error detected!");
my_client->ClientError(NETWORK_RECV_STATUS_DESYNC);
return false;
}
/* If this is the first time we have a sync-frame, we
* need to let the server know that we are ready and at the same
* frame as he is.. so we can start playing! */
if (_network_first_time) {
_network_first_time = false;
SendAck();
}
_sync_frame = 0;
} else if (_sync_frame < _frame_counter) {
DEBUG(net, 1, "Missed frame for sync-test (%d / %d)", _sync_frame, _frame_counter);
_sync_frame = 0;
}
}
return true;
}
/** Our client's connection. */
ClientNetworkGameSocketHandler * ClientNetworkGameSocketHandler::my_client = NULL;
static uint32 last_ack_frame;
/** One bit of 'entropy' used to generate a salt for the company passwords. */
static uint32 _password_game_seed;
/** The other bit of 'entropy' used to generate a salt for the company passwords. */
static char _password_server_id[NETWORK_SERVER_ID_LENGTH];
/** Maximum number of companies of the currently joined server. */
static uint8 _network_server_max_companies;
/** Maximum number of spectators of the currently joined server. */
static uint8 _network_server_max_spectators;
/** Who would we like to join as. */
CompanyID _network_join_as;
/** Login password from -p argument */
const char *_network_join_server_password = NULL;
/** Company password from -P argument */
const char *_network_join_company_password = NULL;
/** Make sure the server ID length is the same as a md5 hash. */
assert_compile(NETWORK_SERVER_ID_LENGTH == 16 * 2 + 1);
/***********
* Sending functions
* DEF_CLIENT_SEND_COMMAND has no parameters
************/
NetworkRecvStatus ClientNetworkGameSocketHandler::SendCompanyInformationQuery()
{
my_client->status = STATUS_COMPANY_INFO;
_network_join_status = NETWORK_JOIN_STATUS_GETTING_COMPANY_INFO;
SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
Packet *p = new Packet(PACKET_CLIENT_COMPANY_INFO);
my_client->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
NetworkRecvStatus ClientNetworkGameSocketHandler::SendJoin()
{
my_client->status = STATUS_JOIN;
_network_join_status = NETWORK_JOIN_STATUS_AUTHORIZING;
SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
Packet *p = new Packet(PACKET_CLIENT_JOIN);
p->Send_string(_openttd_revision);
p->Send_string(_settings_client.network.client_name); // Client name
p->Send_uint8 (_network_join_as); // PlayAs
p->Send_uint8 (NETLANG_ANY); // Language
my_client->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
NetworkRecvStatus ClientNetworkGameSocketHandler::SendNewGRFsOk()
{
Packet *p = new Packet(PACKET_CLIENT_NEWGRFS_CHECKED);
my_client->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
NetworkRecvStatus ClientNetworkGameSocketHandler::SendGamePassword(const char *password)
{
Packet *p = new Packet(PACKET_CLIENT_GAME_PASSWORD);
p->Send_string(password);
my_client->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}