void CGame::ClientReadNet()
{
if (gu->gameTime - lastCpuUsageTime >= 1) {
lastCpuUsageTime = gu->gameTime;
if (playing) {
net->Send(CBaseNetProtocol::Get().SendCPUUsage(profiler.GetPercent("CPU load")));
#if defined(USE_GML) && GML_ENABLE_SIM
net->Send(CBaseNetProtocol::Get().SendLuaDrawTime(gu->myPlayerNum, luaDrawTime));
#endif
} else {
// the CPU-load percentage is undefined prior to SimFrame()
net->Send(CBaseNetProtocol::Get().SendCPUUsage(0.0f));
}
}
boost::shared_ptr<const netcode::RawPacket> packet;
// compute new timeLeft to "smooth" out SimFrame() calls
if (!gameServer) {
const unsigned int currentFrame = SDL_GetTicks();
if (timeLeft > 1.0f)
timeLeft -= 1.0f;
timeLeft += consumeSpeed * ((float)(currentFrame - lastframe) / 1000.f);
if (skipping)
timeLeft = 0.01f;
lastframe = currentFrame;
// read ahead to calculate the number of NETMSG_NEWFRAMES
// we still have to process (in variable "que")
int que = 0; // Number of NETMSG_NEWFRAMEs waiting to be processed.
unsigned ahead = 0;
while ((packet = net->Peek(ahead))) {
if (packet->data[0] == NETMSG_NEWFRAME || packet->data[0] == NETMSG_KEYFRAME)
++que;
++ahead;
}
if(que < leastQue)
leastQue = que;
}
else
{
// make sure ClientReadNet returns at least every 15 game frames
// so CGame can process keyboard input, and render etc.
timeLeft = (float)MAX_CONSECUTIVE_SIMFRAMES * gs->userSpeedFactor;
}
// always render at least 2FPS (will otherwise be highly unresponsive when catching up after a reconnection)
unsigned procstarttime = SDL_GetTicks();
// really process the messages
while (timeLeft > 0.0f && (SDL_GetTicks() - procstarttime) < 500 && (packet = net->GetData(gs->frameNum)))
{
const unsigned char* inbuf = packet->data;
const unsigned dataLength = packet->length;
const unsigned char packetCode = inbuf[0];
switch (packetCode) {
case NETMSG_QUIT: {
try {
netcode::UnpackPacket pckt(packet, 3);
std::string message;
pckt >> message;
logOutput.Print(message);
if (!gameOver) {
GameEnd(std::vector<unsigned char>());
}
AddTraffic(-1, packetCode, dataLength);
} catch (netcode::UnpackPacketException &e) {
logOutput.Print("Got invalid QuitMessage: %s", e.err.c_str());
}
break;
}
case NETMSG_PLAYERLEFT: {
const unsigned char player = inbuf[1];
if (!playerHandler->IsValidPlayer(player)) {
logOutput.Print("Got invalid player num (%i) in NETMSG_PLAYERLEFT", player);
break;
}
playerHandler->PlayerLeft(player, inbuf[2]);
eventHandler.PlayerRemoved(player, (int) inbuf[2]);
AddTraffic(player, packetCode, dataLength);
break;
}
case NETMSG_MEMDUMP: {
MakeMemDump();
#ifdef TRACE_SYNC
tracefile.Commit();
#endif
AddTraffic(-1, packetCode, dataLength);
break;
}
case NETMSG_STARTPLAYING: {
unsigned timeToStart = *(unsigned*)(inbuf+1);
if (timeToStart > 0) {
GameSetupDrawer::StartCountdown(timeToStart);
} else {
StartPlaying();
}
AddTraffic(-1, packetCode, dataLength);
break;
}
case NETMSG_SENDPLAYERSTAT: {
//logOutput.Print("Game over");
// Warning: using CPlayer::Statistics here may cause endianness problems
// once net->SendData is endian aware!
net->Send(CBaseNetProtocol::Get().SendPlayerStat(gu->myPlayerNum, playerHandler->Player(gu->myPlayerNum)->currentStats));
AddTraffic(-1, packetCode, dataLength);
break;
}
case NETMSG_PLAYERSTAT: {
const unsigned char player = inbuf[1];
if (!playerHandler->IsValidPlayer(player)) {
logOutput.Print("Got invalid player num %i in playerstat msg",player);
break;
}
playerHandler->Player(player)->currentStats = *(CPlayer::Statistics*)&inbuf[2];
if (gameOver) {
CDemoRecorder* record = net->GetDemoRecorder();
if (record != NULL) {
record->SetPlayerStats(player, playerHandler->Player(player)->currentStats);
}
}
AddTraffic(player, packetCode, dataLength);
break;
}
case NETMSG_PAUSE: {
const unsigned char player = inbuf[1];
if (!playerHandler->IsValidPlayer(player)) {
logOutput.Print("Got invalid player num %i in pause msg",player);
break;
}
gs->paused=!!inbuf[2];
logOutput.Print(gs->paused ? "%s paused the game" : "%s unpaused the game" ,
playerHandler->Player(player)->name.c_str());
eventHandler.GamePaused(player, gs->paused);
lastframe = SDL_GetTicks();
AddTraffic(player, packetCode, dataLength);
break;
}
case NETMSG_INTERNAL_SPEED: {
gs->speedFactor = *((float*) &inbuf[1]);
sound->PitchAdjust(sqrt(gs->speedFactor));
// logOutput.Print("Internal speed set to %.2f",gs->speedFactor);
AddTraffic(-1, packetCode, dataLength);
break;
}
case NETMSG_USER_SPEED: {
gs->userSpeedFactor = *((float*) &inbuf[2]);
const unsigned char player = inbuf[1];
if (!playerHandler->IsValidPlayer(player) && player != SERVER_PLAYER) {
logOutput.Print("Got invalid player num %i in user speed msg", player);
break;
}
const char* pName = (player == SERVER_PLAYER)? "server": playerHandler->Player(player)->name.c_str();
logOutput.Print("Speed set to %.1f [%s]", gs->userSpeedFactor, pName);
AddTraffic(player, packetCode, dataLength);
break;
}
case NETMSG_CPU_USAGE: {
logOutput.Print("Game clients shouldn't get cpu usage msgs?");
AddTraffic(-1, packetCode, dataLength);
break;
}
case NETMSG_PLAYERINFO: {
const unsigned char player = inbuf[1];
if (!playerHandler->IsValidPlayer(player)) {
logOutput.Print("Got invalid player num %i in playerinfo msg", player);
break;
}
playerHandler->Player(player)->cpuUsage = *(float*) &inbuf[2];
playerHandler->Player(player)->ping = *(boost::uint32_t*) &inbuf[6];
AddTraffic(player, packetCode, dataLength);
break;
}
case NETMSG_PLAYERNAME: {
try {
netcode::UnpackPacket pckt(packet, 2);
unsigned char player;
pckt >> player;
if (!playerHandler->IsValidPlayer(player))
throw netcode::UnpackPacketException("Invalid player number");
pckt >> playerHandler->Player(player)->name;
playerHandler->Player(player)->readyToStart=(gameSetup->startPosType != CGameSetup::StartPos_ChooseInGame);
playerHandler->Player(player)->active=true;
wordCompletion->AddWord(playerHandler->Player(player)->name, false, false, false); // required?
AddTraffic(player, packetCode, dataLength);
} catch (netcode::UnpackPacketException &e) {
logOutput.Print("Got invalid PlayerName: %s", e.err.c_str());
}
break;
}
case NETMSG_CHAT: {
try {
ChatMessage msg(packet);
HandleChatMsg(msg);
AddTraffic(msg.fromPlayer, packetCode, dataLength);
} catch (netcode::UnpackPacketException &e) {
logOutput.Print("Got invalid ChatMessage: %s", e.err.c_str());
}
break;
}
case NETMSG_SYSTEMMSG:{
try {
netcode::UnpackPacket pckt(packet, 4);
string s;
pckt >> s;
logOutput.Print(s);
AddTraffic(-1, packetCode, dataLength);
} catch (netcode::UnpackPacketException &e) {
logOutput.Print("Got invalid SystemMessage: %s", e.err.c_str());
}
break;
}
case NETMSG_STARTPOS:{
const unsigned char player = inbuf[1];
if (!playerHandler->IsValidPlayer(player) && player != SERVER_PLAYER) {
logOutput.Print("Got invalid player num %i in start pos msg", player);
break;
}
const int team = inbuf[2];
if (!teamHandler->IsValidTeam(team)) {
logOutput.Print("Got invalid team num %i in startpos msg", team);
} else {
float3 pos(*(float*)&inbuf[4],
*(float*)&inbuf[8],
*(float*)&inbuf[12]);
if (!luaRules || luaRules->AllowStartPosition(player, pos)) {
teamHandler->Team(team)->StartposMessage(pos);
if (inbuf[3] != 2 && player != SERVER_PLAYER)
{
playerHandler->Player(player)->readyToStart = !!inbuf[3];
}
if (pos.y != -500) // no marker marker when no pos set yet
{
char label[128];
SNPRINTF(label, sizeof(label), "Start %i", team);
inMapDrawer->LocalPoint(pos, label, player);
// FIXME - erase old pos ?
}
}
}
AddTraffic(player, packetCode, dataLength);
break;
}
case NETMSG_RANDSEED: {
gs->SetRandSeed(*((unsigned int*)&inbuf[1]), true);
AddTraffic(-1, packetCode, dataLength);
break;
}
case NETMSG_GAMEID: {
const unsigned char* p = &inbuf[1];
CDemoRecorder* record = net->GetDemoRecorder();
if (record != NULL) {
record->SetGameID(p);
}
memcpy(gameID, p, sizeof(gameID));
logOutput.Print(
"GameID: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
p[ 0], p[ 1], p[ 2], p[ 3], p[ 4], p[ 5], p[ 6], p[ 7],
p[ 8], p[ 9], p[10], p[11], p[12], p[13], p[14], p[15]);
AddTraffic(-1, packetCode, dataLength);
break;
}
case NETMSG_PATH_CHECKSUM: {
const unsigned char playerNum = inbuf[1];
if (!playerHandler->IsValidPlayer(playerNum)) {
logOutput.Print("Got invalid player num %i in path checksum msg", playerNum);
break;
}
const boost::uint32_t playerCheckSum = *(boost::uint32_t*) &inbuf[2];
const boost::uint32_t localCheckSum = pathManager->GetPathCheckSum();
const CPlayer* player = playerHandler->Player(playerNum);
if (playerCheckSum == 0) {
logOutput.Print(
"[DESYNC WARNING] path-checksum for player %d (%s) is 0; non-writable cache?",
playerNum, player->name.c_str()
);
} else {
if (playerCheckSum != localCheckSum) {
logOutput.Print(
"[DESYNC WARNING] path-checksum %08x for player %d (%s) does not match local checksum %08x",
playerCheckSum, playerNum, player->name.c_str(), localCheckSum
);
}
}
} break;
case NETMSG_KEYFRAME: {
int serverframenum = *(int*)(inbuf+1);
net->Send(CBaseNetProtocol::Get().SendKeyFrame(serverframenum));
if (gs->frameNum == (serverframenum - 1)) {
} else {
// error
LogObject() << "Error: Keyframe difference: " << gs->frameNum - (serverframenum - 1);
}
/* Fall through */
}
case NETMSG_NEWFRAME: {
timeLeft -= 1.0f;
SimFrame();
// both NETMSG_SYNCRESPONSE and NETMSG_NEWFRAME are used for ping calculation by server
#ifdef SYNCCHECK
net->Send(CBaseNetProtocol::Get().SendSyncResponse(gs->frameNum, CSyncChecker::GetChecksum()));
if ((gs->frameNum & 4095) == 0) {// reset checksum every ~2.5 minute gametime
CSyncChecker::NewFrame();
}
#endif
AddTraffic(-1, packetCode, dataLength);
if (videoCapturing->IsCapturing()) {
return;
}
break;
}
case NETMSG_COMMAND: {
try {
netcode::UnpackPacket pckt(packet, 1);
short int psize;
pckt >> psize;
unsigned char player;
pckt >> player;
if (!playerHandler->IsValidPlayer(player))
throw netcode::UnpackPacketException("Invalid player number");
Command c;
pckt >> c.id;
pckt >> c.options;
for(int a = 0; a < ((psize-9)/4); ++a) {
float param;
pckt >> param;
c.params.push_back(param);
}
selectedUnits.NetOrder(c,player);
AddTraffic(player, packetCode, dataLength);
} catch (netcode::UnpackPacketException &e) {
logOutput.Print("Got invalid Command: %s", e.err.c_str());
}
break;
}
case NETMSG_SELECT: {
try {
netcode::UnpackPacket pckt(packet, 1);
short int psize;
pckt >> psize;
unsigned char player;
pckt >> player;
if (!playerHandler->IsValidPlayer(player))
throw netcode::UnpackPacketException("Invalid player number");
vector<int> selected;
for (int a = 0; a < ((psize-4)/2); ++a) {
short int unitid;
pckt >> unitid;
if (uh->GetUnit(unitid) == NULL)
throw netcode::UnpackPacketException("Invalid unit ID");
if ((uh->GetUnit(unitid)->team == playerHandler->Player(player)->team) || gs->godMode) {
selected.push_back(unitid);
}
}
selectedUnits.NetSelect(selected, player);
AddTraffic(player, packetCode, dataLength);
} catch (netcode::UnpackPacketException &e) {
logOutput.Print("Got invalid Select: %s", e.err.c_str());
}
break;
}
case NETMSG_AICOMMAND:
case NETMSG_AICOMMAND_TRACKED: {
try {
netcode::UnpackPacket pckt(packet, 1);
short int psize;
pckt >> psize;
unsigned char player;
pckt >> player;
if (!playerHandler->IsValidPlayer(player))
throw netcode::UnpackPacketException("Invalid player number");
short int unitid;
pckt >> unitid;
if (unitid < 0 || static_cast<size_t>(unitid) >= uh->MaxUnits())
throw netcode::UnpackPacketException("Invalid unit ID");
Command c;
pckt >> c.id;
pckt >> c.options;
if (packetCode == NETMSG_AICOMMAND_TRACKED) {
pckt >> c.aiCommandId;
}
// insert the command parameters
for (int a = 0; a < ((psize - 11) / 4); ++a) {
float param;
pckt >> param;
c.params.push_back(param);
}
selectedUnits.AiOrder(unitid, c, player);
AddTraffic(player, packetCode, dataLength);
} catch (netcode::UnpackPacketException &e) {
logOutput.Print("Got invalid AICommand: %s", e.err.c_str());
}
break;
}
void CPreGame::GameDataReceived(boost::shared_ptr<const netcode::RawPacket> packet)
{
ScopedOnceTimer startserver("PreGame::GameDataReceived");
try {
gameData.reset(new GameData(packet));
} catch (const netcode::UnpackPacketException& ex) {
throw content_error(std::string("Server sent us invalid GameData: ") + ex.what());
}
// for demos, ReadDataFromDemo precedes UpdateClientNet -> GameDataReceived
// this means gameSetup contains data from the original game but we need the
// modified version (cf StartServerForDemo) which the server already has that
// contains an extra player
if (gameSetup != NULL)
SafeDelete(gameSetup);
if (CGameSetup::LoadReceivedScript(gameData->GetSetupText(), clientSetup->isHost)) {
assert(gameSetup != NULL);
gu->LoadFromSetup(gameSetup);
gs->LoadFromSetup(gameSetup);
// do we really need to do this so early?
CPlayer::UpdateControlledTeams();
} else {
throw content_error("Server sent us incorrect script");
}
// some sanity checks
for (int p = 0; p < playerHandler->ActivePlayers(); ++p) {
const CPlayer* player = playerHandler->Player(p);
if (!playerHandler->IsValidPlayer(player->playerNum)) {
throw content_error("Invalid player in game data");
}
if (!teamHandler->IsValidTeam(player->team)) {
throw content_error("Invalid team in game data");
}
if (!teamHandler->IsValidAllyTeam(teamHandler->AllyTeam(player->team))) { // TODO: seems not to make sense really
throw content_error("Invalid ally team in game data");
}
}
// Load archives into VFS
AddGameSetupArchivesToVFS(gameSetup, false);
// Check checksums of map & game
try {
archiveScanner->CheckArchive(gameSetup->mapName, gameData->GetMapChecksum());
} catch (const content_error& ex) {
LOG_L(L_WARNING, "Incompatible map-checksum: %s", ex.what());
}
try {
archiveScanner->CheckArchive(modArchive, gameData->GetModChecksum());
} catch (const content_error& ex) {
LOG_L(L_WARNING, "Incompatible game-checksum: %s", ex.what());
}
if (clientSetup->isHost && !gameSetup->recordDemo) { //script.txt allows to disable demo file recording (host only, used for menu)
wantDemo = false;
}
if (clientNet != NULL && wantDemo) {
assert(clientNet->GetDemoRecorder() == NULL);
CDemoRecorder* recorder = new CDemoRecorder(gameSetup->mapName, gameSetup->modName, false);
recorder->WriteSetupText(gameData->GetSetupText());
recorder->SaveToDemo(packet->data, packet->length, clientNet->GetPacketTime(gs->frameNum));
clientNet->SetDemoRecorder(recorder);
LOG("Recording demo to: %s", (recorder->GetName()).c_str());
}
}
void CPreGame::GameDataReceived(boost::shared_ptr<const netcode::RawPacket> packet)
{
ScopedOnceTimer startserver("PreGame::GameDataReceived");
try {
gameData.reset(new GameData(packet));
} catch (const netcode::UnpackPacketException& ex) {
throw content_error(std::string("Server sent us invalid GameData: ") + ex.what());
}
CGameSetup* temp = new CGameSetup();
if (temp->Init(gameData->GetSetup())) {
if (settings->isHost) {
const std::string& setupTextStr = gameData->GetSetup();
std::fstream setupTextFile("_script.txt", std::ios::out);
setupTextFile.write(setupTextStr.c_str(), setupTextStr.size());
setupTextFile.close();
}
gameSetup = temp;
gu->LoadFromSetup(gameSetup);
gs->LoadFromSetup(gameSetup);
CPlayer::UpdateControlledTeams();
} else {
throw content_error("Server sent us incorrect script");
}
// some sanity checks
for (int p = 0; p < playerHandler->ActivePlayers(); ++p) {
const CPlayer* player = playerHandler->Player(p);
if (!playerHandler->IsValidPlayer(player->playerNum)) {
throw content_error("Invalid player in game data");
}
if (!teamHandler->IsValidTeam(player->team)) {
throw content_error("Invalid team in game data");
}
if (!teamHandler->IsValidAllyTeam(teamHandler->AllyTeam(player->team))) { // TODO: seems not to make sense really
throw content_error("Invalid ally team in game data");
}
}
gs->SetRandSeed(gameData->GetRandomSeed(), true);
LOG("Using map: %s", gameSetup->mapName.c_str());
vfsHandler->AddArchiveWithDeps(gameSetup->mapName, false);
try {
archiveScanner->CheckArchive(gameSetup->mapName, gameData->GetMapChecksum());
} catch (const content_error& ex) {
LOG_L(L_WARNING, "Incompatible map-checksum: %s", ex.what());
}
LOG("Using game: %s", gameSetup->modName.c_str());
vfsHandler->AddArchiveWithDeps(gameSetup->modName, false);
modArchive = archiveScanner->ArchiveFromName(gameSetup->modName);
LOG("Using game archive: %s", modArchive.c_str());
try {
archiveScanner->CheckArchive(modArchive, gameData->GetModChecksum());
} catch (const content_error& ex) {
LOG_L(L_WARNING, "Incompatible game-checksum: %s", ex.what());
}
if (net != NULL && wantDemo) {
assert(net->GetDemoRecorder() == NULL);
CDemoRecorder* recorder = new CDemoRecorder(gameSetup->mapName, gameSetup->modName);
recorder->WriteSetupText(gameData->GetSetup());
recorder->SaveToDemo(packet->data, packet->length, net->GetPacketTime(gs->frameNum));
net->SetDemoRecorder(recorder);
LOG("recording demo: %s", (recorder->GetName()).c_str());
}
}
