/*! \brief Called when a player asks to select a kart.
* \param event : Event providing the information.
*
* Format of the data :
* Byte 0 1 2
* ----------------------------------------------
* Size | 1 | 1 | N |
* Data |player id | N (kart name size) | kart name |
* ----------------------------------------------
*/
void ServerLobbyRoomProtocol::kartSelectionRequested(Event* event)
{
if(m_state!=SELECTING)
{
Log::warn("Server", "Received kart selection while in state %d.",
m_state);
return;
}
if (!checkDataSize(event, 1)) return;
const NetworkString &data = event->data();
STKPeer* peer = event->getPeer();
uint8_t player_id = data.getUInt8();
std::string kart_name;
data.decodeString(&kart_name);
// check if selection is possible
if (!m_selection_enabled)
{
NetworkString *answer = getNetworkString(2);
// selection still not started
answer->addUInt8(LE_KART_SELECTION_REFUSED).addUInt8(2);
peer->sendPacket(answer);
delete answer;
return;
}
// check if somebody picked that kart
if (!m_setup->isKartAvailable(kart_name))
{
NetworkString *answer = getNetworkString(2);
// kart is already taken
answer->addUInt8(LE_KART_SELECTION_REFUSED).addUInt8(0);
peer->sendPacket(answer);
delete answer;
return;
}
// check if this kart is authorized
if (!m_setup->isKartAllowed(kart_name))
{
NetworkString *answer = getNetworkString(2);
// kart is not authorized
answer->addUInt8(LE_KART_SELECTION_REFUSED).addUInt8(1);
peer->sendPacket(answer);
delete answer;
return;
}
// send a kart update to everyone
NetworkString *answer = getNetworkString(3+kart_name.size());
// This message must be handled synchronously on the client.
answer->setSynchronous(true);
// kart update (3), 1, race id
answer->addUInt8(LE_KART_SELECTION_UPDATE).addUInt8(player_id)
.encodeString(kart_name);
sendMessageToPeersChangingToken(answer);
delete answer;
m_setup->setPlayerKart(player_id, kart_name);
} // kartSelectionRequested
/** This function informs each client to start the race, and then starts the
* StartGameProtocol.
*/
void ServerLobbyRoomProtocol::startGame()
{
const std::vector<STKPeer*> &peers = STKHost::get()->getPeers();
NetworkString *ns = getNetworkString(1);
ns->addUInt8(LE_START_RACE);
sendMessageToPeersChangingToken(ns, /*reliable*/true);
delete ns;
Protocol *p = new StartGameProtocol(m_setup);
p->requestStart();
m_state = RACING;
} // startGame
/*! \brief Called when a player votes for a minor race mode.
* \param event : Event providing the information.
*
* Format of the data :
* Byte 0 1
* -------------------------------
* Size | 1 | 4 |
* Data | player-id | minor mode vote |
* -------------------------------
*/
void ServerLobbyRoomProtocol::playerMinorVote(Event* event)
{
if (!checkDataSize(event, 1)) return;
NetworkString &data = event->data();
uint8_t player_id = data.getUInt8();
uint32_t minor = data.getUInt32();
m_setup->getRaceConfig()->setPlayerMinorVote(player_id, minor);
// Send the vote to everybody (including the sender)
NetworkString *other = getNetworkString(3);
other->addUInt8(LE_VOTE_MINOR).addUInt8(player_id).addUInt8(minor);
sendMessageToPeersChangingToken(other);
delete other;
} // playerMinorVote
/*! \brief Called when a player votes for a major race mode.
* \param event : Event providing the information.
*
* Format of the data :
* Byte 0 1 2
* ----------------------------------------
* Size | 1 | 1 | 1 |
* Data | player id | laps | track number (gp) |
* ----------------------------------------
*/
void ServerLobbyRoomProtocol::playerLapsVote(Event* event)
{
if (!checkDataSize(event, 2)) return;
NetworkString &data = event->data();
uint8_t player_id = data.getUInt8();
uint8_t lap_count = data.getUInt8();
uint8_t track_nb = data.getUInt8();
m_setup->getRaceConfig()->setPlayerLapsVote(player_id, lap_count,
track_nb);
NetworkString *other = getNetworkString(4);
other->addUInt8(LE_VOTE_LAPS).addUInt8(player_id).addUInt8(lap_count)
.addUInt8(track_nb);
sendMessageToPeersChangingToken(other);
delete other;
} // playerLapsVote
/*! \brief Called when a player votes for the reverse mode of a race
* \param event : Event providing the information.
*
* Format of the data :
* Byte 0 1 2
* --------------------------------------------
* Size | 1 | 1 | 1 |
* Data | player id | reversed | track number (gp) |
* --------------------------------------------
*/
void ServerLobbyRoomProtocol::playerReversedVote(Event* event)
{
if (!checkDataSize(event, 3)) return;
NetworkString &data = event->data();
uint8_t player_id = data.getUInt8();
uint8_t reverse = data.getUInt8();
uint8_t nb_track = data.getUInt8();
m_setup->getRaceConfig()->setPlayerReversedVote(player_id,
reverse!=0, nb_track);
// Send the vote to everybody (including the sender)
NetworkString *other = getNetworkString(4);
other->addUInt8(LE_VOTE_REVERSE).addUInt8(player_id).addUInt8(reverse)
.addUInt8(nb_track);
sendMessageToPeersChangingToken(other);
delete other;
} // playerReversedVote
/** Checks if the race is finished, and if so informs the clients and switches
* to state RESULT_DISPLAY, during which the race result gui is shown and all
* clients can click on 'continue'.
*/
void ServerLobbyRoomProtocol::checkRaceFinished()
{
assert(RaceEventManager::getInstance()->isRunning());
assert(World::getWorld());
if(!RaceEventManager::getInstance()->isRaceOver()) return;
m_player_ready_counter = 0;
// Set the delay before the server forces all clients to exit the race
// result screen and go back to the lobby
m_timeout = (float)(StkTime::getRealTime()+15.0f);
m_state = RESULT_DISPLAY;
// calculate karts ranks :
int num_karts = race_manager->getNumberOfKarts();
std::vector<int> karts_results;
std::vector<float> karts_times;
for (int j = 0; j < num_karts; j++)
{
float kart_time = race_manager->getKartRaceTime(j);
for (unsigned int i = 0; i < karts_times.size(); i++)
{
if (kart_time < karts_times[i])
{
karts_times.insert(karts_times.begin() + i, kart_time);
karts_results.insert(karts_results.begin() + i, j);
break;
}
}
}
const std::vector<STKPeer*> &peers = STKHost::get()->getPeers();
NetworkString *total = getNetworkString(1 + karts_results.size());
total->setSynchronous(true);
total->addUInt8(LE_RACE_FINISHED);
for (unsigned int i = 0; i < karts_results.size(); i++)
{
total->addUInt8(karts_results[i]); // kart pos = i+1
Log::info("ServerLobbyRoomProtocol", "Kart %d finished #%d",
karts_results[i], i + 1);
}
sendMessageToPeersChangingToken(total, /*reliable*/ true);
delete total;
Log::info("ServerLobbyRoomProtocol", "End of game message sent");
} // checkRaceFinished
/*! \brief Called when a player votes for the number of races in a GP.
* \param event : Event providing the information.
*
* Format of the data :
* Byte 0 1 5 6 7
* ------------------------------------
* Size | 1 | 4 | 1 | 1 |
* Data | 4 | priv token | 1 | races count |
* ------------------------------------
*/
void ServerLobbyRoomProtocol::playerRaceCountVote(Event* event)
{
NetworkString &data = event->data();
STKPeer* peer = event->getPeer();
if (!checkDataSizeAndToken(event, 7))
return;
if (!isByteCorrect(event, 5, 1))
return;
uint8_t player_id = peer->getPlayerProfile()->getGlobalPlayerId();
m_setup->getRaceConfig()->setPlayerRaceCountVote(player_id, data[6]);
// Send the vote to everybody (including the sender)
data.removeFront(5); // remove the token
NetworkString other(2+data.size());
other.ai8(1).ai8(player_id); // add the player id
other += data; // add the data
sendMessageToPeersChangingToken(LE_VOTE_RACE_COUNT, other);
} // playerRaceCountVote
/*! \brief Called when a player votes for a minor race mode.
* \param event : Event providing the information.
*
* Format of the data :
* Byte 0 1 5 6 7
* ----------------------------------------
* Size | 1 | 4 | 1 | 1 |
* Data | 4 | priv token | 1 | minor mode vote |
* ----------------------------------------
*/
void ServerLobbyRoomProtocol::playerMinorVote(Event* event)
{
NetworkString data = event->data();
STKPeer* peer = *(event->peer);
if (!checkDataSizeAndToken(event, 7))
return;
if (!isByteCorrect(event, 5, 1))
return;
uint8_t player_id = peer->getPlayerProfile()->race_id;
m_setup->getRaceConfig()->setPlayerMinorVote(player_id, data[6]);
// Send the vote to everybody (including the sender)
NetworkString other;
other.ai8(1).ai8(player_id); // add the player id
data.removeFront(5); // remove the token
other += data; // add the data
NetworkString prefix;
prefix.ai8(0xc2); // prefix the token with the ype
sendMessageToPeersChangingToken(prefix, other);
}
/*! \brief Called when a player votes for a track.
* \param event : Event providing the information.
*
* Format of the data :
* Byte 0 1 2 3
* --------------------------------------------------
* Size | 1 | 1 | 1 | N |
* Data | player id | track number (gp) | N | track name |
* --------------------------------------------------
*/
void ServerLobbyRoomProtocol::playerTrackVote(Event* event)
{
if (!checkDataSize(event, 3)) return;
NetworkString &data = event->data();
uint8_t player_id = data.getUInt8();
// As which track this track should be used, e.g. 1st track: Sandtrack
// 2nd track Mathclass, ...
uint8_t track_number = data.getUInt8();
std::string track_name;
int N = data.decodeString(&track_name);
m_setup->getRaceConfig()->setPlayerTrackVote(player_id, track_name,
track_number);
// Send the vote to everybody (including the sender)
NetworkString *other = getNetworkString(3+1+data.size());
other->addUInt8(LE_VOTE_TRACK).addUInt8(player_id).addUInt8(track_number)
.encodeString(track_name);
sendMessageToPeersChangingToken(other);
delete other;
if(m_setup->getRaceConfig()->getNumTrackVotes()==m_setup->getPlayerCount())
startGame();
} // playerTrackVote
/** Instructs all clients to start the kart selection. If event is not NULL,
* the command comes from a client (which needs to be authorised).
*/
void ServerLobbyRoomProtocol::startSelection(const Event *event)
{
if(event && !event->getPeer()->isAuthorised())
{
Log::warn("ServerLobby",
"Client %lx is not authorised to start selection.",
event->getPeer());
return;
}
const std::vector<STKPeer*> &peers = STKHost::get()->getPeers();
NetworkString *ns = getNetworkString(1);
// start selection
ns->addUInt8(LE_START_SELECTION);
sendMessageToPeersChangingToken(ns, /*reliable*/true);
delete ns;
m_selection_enabled = true;
m_state = SELECTING;
WaitingForOthersScreen::getInstance()->push();
} // startSelection
/*! \brief Called when a player votes for a track.
* \param event : Event providing the information.
*
* Format of the data :
* Byte 0 1 5 6 N+6 N+7 N+8
* -----------------------------------------------------------
* Size | 1 | 4 | 1 | N | 1 | 1 |
* Data | 4 | priv token | N | track name | 1 | track number (gp) |
* -----------------------------------------------------------
*/
void ServerLobbyRoomProtocol::playerTrackVote(Event* event)
{
NetworkString &data = event->data();
STKPeer* peer = event->getPeer();
if (!checkDataSizeAndToken(event, 8))
return;
std::string track_name;
int N = data.decodeString(5, &track_name);
if (!isByteCorrect(event, N+5, 1))
return;
uint8_t player_id = peer->getPlayerProfile()->getGlobalPlayerId();
m_setup->getRaceConfig()->setPlayerTrackVote(player_id, track_name, data[N+6]);
// Send the vote to everybody (including the sender)
data.removeFront(5); // remove the token
NetworkString other(2+data.size());
other.ai8(1).ai8(player_id); // add the player id
other += data; // add the data
sendMessageToPeersChangingToken(LE_VOTE_TRACK, other);
if(m_setup->getRaceConfig()->getNumTrackVotes()==m_setup->getPlayerCount())
startGame();
} // playerTrackVote
/** Called when a client disconnects.
* \param event The disconnect event.
*/
void ServerLobbyRoomProtocol::clientDisconnected(Event* event)
{
std::vector<NetworkPlayerProfile*> players_on_host =
event->getPeer()->getAllPlayerProfiles();
NetworkString *msg = getNetworkString(2);
msg->addUInt8(LE_PLAYER_DISCONNECTED);
for(unsigned int i=0; i<players_on_host.size(); i++)
{
msg->addUInt8(players_on_host[i]->getGlobalPlayerId());
Log::info("ServerLobbyRoomProtocol", "Player disconnected : id %d",
players_on_host[i]->getGlobalPlayerId());
m_setup->removePlayer(players_on_host[i]);
}
sendMessageToPeersChangingToken(msg, /*reliable*/true);
// Remove the profile from the peer (to avoid double free)
STKHost::get()->removePeer(event->getPeer());
delete msg;
} // clientDisconnected
/** Simple finite state machine. First get the public ip address. Once this
* is known, register the server and its address with the stk server so that
* client can find it.
*/
void ServerLobbyRoomProtocol::update(float dt)
{
switch (m_state)
{
case NONE:
// Start the protocol to find the public ip address.
m_current_protocol = new GetPublicAddress(this);
m_current_protocol->requestStart();
m_state = GETTING_PUBLIC_ADDRESS;
// The callback from GetPublicAddress will wake this protocol up
requestPause();
break;
case GETTING_PUBLIC_ADDRESS:
{
Log::debug("ServerLobbyRoomProtocol", "Public address known.");
// Free GetPublicAddress protocol
delete m_current_protocol;
// Register this server with the STK server. This will block
// this thread, but there is no need for the protocol manager
// to react to any requests before the server is registered.
registerServer();
Log::info("ServerLobbyRoomProtocol", "Server registered.");
m_state = ACCEPTING_CLIENTS;
}
break;
case ACCEPTING_CLIENTS:
{
// Only poll the STK server if this is a WAN server.
if(NetworkConfig::get()->isWAN())
checkIncomingConnectionRequests();
break;
}
case SELECTING:
break; // Nothing to do, this is event based
case RACING:
if (World::getWorld() &&
RaceEventManager::getInstance<RaceEventManager>()->isRunning())
{
checkRaceFinished();
}
break;
case RESULT_DISPLAY:
if(StkTime::getRealTime() > m_timeout)
{
// Send a notification to all clients to exit
// the race result screen
NetworkString *exit_result_screen = getNetworkString(1);
exit_result_screen->setSynchronous(true);
exit_result_screen->addUInt8(LE_EXIT_RESULT);
sendMessageToPeersChangingToken(exit_result_screen,
/*reliable*/true);
delete exit_result_screen;
m_state = ACCEPTING_CLIENTS;
RaceResultGUI::getInstance()->backToLobby();
// notify the network world that it is stopped
RaceEventManager::getInstance()->stop();
// stop race protocols
findAndTerminateProtocol(PROTOCOL_CONTROLLER_EVENTS);
findAndTerminateProtocol(PROTOCOL_KART_UPDATE);
findAndTerminateProtocol(PROTOCOL_GAME_EVENTS);
}
break;
case DONE:
m_state = EXITING;
requestTerminate();
break;
case EXITING:
break;
}
} // update