/*! \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
// ----------------------------------------------------------------------------
void GameEventsProtocol::sendStartupBoost(uint8_t kart_id)
{
NetworkString *ns = getNetworkString();
ns->setSynchronous(true);
ns->addUInt8(GE_STARTUP_BOOST).addUInt8(kart_id);
sendToServer(ns, /*reliable*/true);
delete ns;
} // sendStartupBoost
/** This function is called from the server when a kart finishes a race. It
* sends a notification to all clients about this event.
* \param kart The kart that finished the race.
* \param time The time at which the kart finished.
*/
void GameEventsProtocol::kartFinishedRace(AbstractKart *kart, float time)
{
NetworkString *ns = getNetworkString(20);
ns->setSynchronous(true);
ns->addUInt8(GE_KART_FINISHED_RACE).addUInt8(kart->getWorldKartId())
.addFloat(time);
sendMessageToPeers(ns, /*reliable*/true);
delete ns;
} // kartFinishedRace
/** 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
// ----------------------------------------------------------------------------
bool GameEventsProtocol::notifyEvent(Event* event)
{
// Avoid crash in case that we still receive race events when
// the race is actually over.
if (event->getType() != EVENT_TYPE_MESSAGE || !World::getWorld())
return true;
NetworkString &data = event->data();
if (data.size() < 1) // for type
{
Log::warn("GameEventsProtocol", "Too short message.");
return true;
}
uint8_t type = data.getUInt8();
CaptureTheFlag* ctf = dynamic_cast<CaptureTheFlag*>(World::getWorld());
FreeForAll* ffa = dynamic_cast<FreeForAll*>(World::getWorld());
SoccerWorld* sw = dynamic_cast<SoccerWorld*>(World::getWorld());
LinearWorld* lw = dynamic_cast<LinearWorld*>(World::getWorld());
switch (type)
{
case GE_KART_FINISHED_RACE:
kartFinishedRace(data); break;
case GE_RESET_BALL:
{
if (!sw)
throw std::invalid_argument("No soccer world");
sw->handleResetBallFromServer(data);
break;
}
case GE_PLAYER_GOAL:
{
if (!sw)
throw std::invalid_argument("No soccer world");
sw->handlePlayerGoalFromServer(data);
break;
}
case GE_BATTLE_KART_SCORE:
{
if (!ffa)
throw std::invalid_argument("No free-for-all world");
ffa->setKartScoreFromServer(data);
break;
}
case GE_CTF_SCORED:
{
if (!ctf)
throw std::invalid_argument("No CTF world");
uint8_t kart_id = data.getUInt8();
bool red_team_scored = data.getUInt8() == 1;
int16_t new_kart_scores = data.getUInt16();
int new_red_scores = data.getUInt8();
int new_blue_scores = data.getUInt8();
ctf->ctfScored(kart_id, red_team_scored, new_kart_scores,
new_red_scores, new_blue_scores);
break;
}
case GE_STARTUP_BOOST:
{
if (NetworkConfig::get()->isServer())
{
uint8_t kart_id = data.getUInt8();
if (!event->getPeer()->availableKartID(kart_id))
{
Log::warn("GameProtocol", "Wrong kart id %d from %s.",
kart_id, event->getPeer()->getAddress().toString().c_str());
return true;
}
float f = LobbyProtocol::get<ServerLobby>()
->getStartupBoostOrPenaltyForKart(
event->getPeer()->getAveragePing(), kart_id);
NetworkString *ns = getNetworkString();
ns->setSynchronous(true);
ns->addUInt8(GE_STARTUP_BOOST).addUInt8(kart_id).addFloat(f);
sendMessageToPeers(ns, true);
delete ns;
}
else
{
uint8_t kart_id = data.getUInt8();
float boost = data.getFloat();
AbstractKart* k = World::getWorld()->getKart(kart_id);
if (boost < 0.0f)
{
PlayerController* pc =
dynamic_cast<PlayerController*>(k->getController());
pc->displayPenaltyWarning();
}
else
k->setStartupBoost(boost);
}
break;
}
case GE_CHECK_LINE:
{
if (!lw)
throw std::invalid_argument("No linear world");
if (NetworkConfig::get()->isClient())
lw->updateCheckLinesClient(data);
break;
}
default:
Log::warn("GameEventsProtocol", "Unkown message type.");
break;
}
return true;
} // notifyEvent
