private void PredictPlayerState()
{
int cmdNum, current;
PlayerState oldPlayerState;
bool moved;
UserCmd oldestCmd;
UserCmd latestCmd;
int stateIndex = 0, predictCmd = 0;
int numPredicted = 0, numPlayedBack = 0;
var gamestate = CDataModel.GameState;
gamestate.hyperspace = false;
if (!validPPS)
{
validPPS = true;
predictedPlayerState = gamestate.snap.playerState;
}
//如果是播回放，那么就复制移动，不做预测
if (gamestate.demoPlayback || (gamestate.snap.playerState.pmFlags & PMoveFlags.FOLLOW) != PMoveFlags.NONE)
{
InterpolatePlayerState(false);
return;
}
//非预测的本地移动会抓取最近的视角
if (CConstVar.NoPredict || CConstVar.SynchronousClients)
{
InterpolatePlayerState(true);
return;
}
pmove.playerState = predictedPlayerState;
if (pmove.playerState.pmType == PMoveType.DEAD)
{
// pmove.tracemask =
}
else
{
// pmove.tracemask
}
// if(gamestate.snap.playerState.persistant[3] == )
// pmove.noFootsteps = gamestate.dm
oldPlayerState = predictedPlayerState;
current = CDataModel.GameState.ClActive.cmdNum;
//如果没有紧接着snapshot之后的comands，就不能精确预测当前的位置，所以就停在最后的正确位置上
cmdNum = current - CConstVar.CMD_BACKUP + 1;
CDataModel.GameState.GetUserCmd(cmdNum, out oldestCmd);
if (oldestCmd.serverTime > gamestate.snap.playerState.commandTime && oldestCmd.serverTime < gamestate.time)
{
if (CConstVar.ShowMiss > 0)
{
CLog.Info("exceeded Packet_Backup on commands");
}
return;
}
CDataModel.GameState.GetUserCmd(current, out latestCmd);
if (gamestate.nextSnap != null && !gamestate.nextFrameTeleport && !gamestate.thisFrameTeleport)
{
predictedPlayerState = gamestate.nextSnap.playerState;
gamestate.physicsTime = gamestate.nextSnap.serverTime;
}
else
{
predictedPlayerState = gamestate.snap.playerState;
gamestate.physicsTime = gamestate.snap.serverTime;
}
if (CConstVar.PMoveMsec < 8)
{
CConstVar.PMoveMsec = 8;
}
else if (CConstVar.PMoveMsec > 33)
{
CConstVar.PMoveMsec = 33;
}
pmove.pmoveFixed = CConstVar.PMoveFixed;
pmove.pmoveMsec = CConstVar.PMoveMsec;
pmove.pmoveFloat = CConstVar.PMoveFloat;
// pmove.pmv
if (CConstVar.OptimizePrediction)
{
if (gamestate.nextFrameTeleport || gamestate.thisFrameTeleport)
{
gamestate.lastPredictedCommand = 0;
gamestate.stateTail = gamestate.stateHead;
predictCmd = current - CConstVar.CMD_BACKUP + 1;
}
else if (gamestate.time == gamestate.lastServerTime)
{
predictCmd = gamestate.lastPredictedCommand + 1;
}
else
{
bool error = true;
for (int i = gamestate.stateHead; i != gamestate.stateTail; i = (i + 1) % CConstVar.NUM_SAVED_STATES)
{
if (gamestate.savedPmoveState[i].commandTime == predictedPlayerState.commandTime)
{
int errorcode = IsUnacceptableError(predictedPlayerState, gamestate.savedPmoveState[i]);
if (errorcode > 0)
{
if (CConstVar.ShowMiss > 0)
{
CLog.Info("errorcode %d at %d", errorcode, gamestate.time);
}
break;
}
pmove.playerState = gamestate.savedPmoveState[i];
gamestate.stateHead = (i + 1) % CConstVar.NUM_SAVED_STATES;
predictCmd = gamestate.lastPredictedCommand + 1;
error = false;
break;
}
}
if (error)
{
gamestate.lastPredictedCommand = 0;
gamestate.stateTail = gamestate.stateHead;
predictCmd = current - CConstVar.CMD_BACKUP + 1;
}
}
gamestate.lastServerTime = gamestate.physicsTime;
stateIndex = gamestate.stateHead;
}
moved = false;
for (cmdNum = current - CConstVar.CMD_BACKUP + 1; cmdNum <= current; cmdNum++)
{
CDataModel.GameState.GetUserCmd(current, out pmove.cmd);
if (pmove.pmoveFixed > 0)
{
PMove.UpdateViewAngles(pmove.playerState, pmove.cmd);
}
if (pmove.cmd.serverTime <= predictedPlayerState.commandTime)
{
continue;
}
if (pmove.cmd.serverTime > latestCmd.serverTime)
{
continue;
}
if (predictedPlayerState.commandTime == oldPlayerState.commandTime)
{
Vector3 delta;
float len;
if (gamestate.thisFrameTeleport)
{
gamestate.predictedError = Vector3.zero;
if (CConstVar.ShowMiss > 0)
{
CLog.Info("PredictionTeleport");
}
gamestate.thisFrameTeleport = false;
}
else
{
Vector3 adjusted, new_angles;
AdjustPositionForMover(predictedPlayerState.origin, predictedPlayerState.groundEntityNum, gamestate.physicsTime, gamestate.oldTime, out adjusted, predictedPlayerState.viewangles, out new_angles);
if (CConstVar.ShowMiss > 0)
{
if (oldPlayerState.origin != adjusted)
{
CLog.Info("prediction error");
}
}
delta = oldPlayerState.origin - adjusted;
len = delta.magnitude;
if (len > 0.1)
{
if (CConstVar.ShowMiss > 0)
{
CLog.Info("Prediction miss: %d", len);
}
if (CConstVar.ErrorDecay > 0)
{
int t = gamestate.time - gamestate.predictedErrorTime;
float f = (CConstVar.ErrorDecay - t) / CConstVar.ErrorDecay;
if (f < 0f)
{
f = 0f;
}
if (f > 0f && CConstVar.ShowMiss > 0)
{
CLog.Info("Double prediction decay: %d", f);
}
gamestate.predictedError = gamestate.predictedError * f;
}
else
{
gamestate.predictedError = Vector3.zero;
}
gamestate.predictedError = delta + gamestate.predictedError;
gamestate.predictedErrorTime = gamestate.oldTime;
}
}
}
pmove.gauntletHit = false;
if (pmove.pmoveFixed > 0)
{
pmove.cmd.serverTime = ((pmove.cmd.serverTime + CConstVar.PMoveMsec - 1) / CConstVar.PMoveMsec) * CConstVar.PMoveMsec;
}
if (CConstVar.OptimizePrediction)
{
if (cmdNum >= predictCmd || (stateIndex + 1) % CConstVar.NUM_SAVED_STATES == gamestate.stateHead)
{
pmove.Move();
numPredicted++;
gamestate.lastPredictedCommand = cmdNum;
if ((stateIndex + 1) % CConstVar.NUM_SAVED_STATES != gamestate.stateHead)
{
gamestate.savedPmoveState[stateIndex] = pmove.playerState;
stateIndex = (stateIndex + 1) % CConstVar.NUM_SAVED_STATES;
gamestate.stateTail = stateIndex;
}
}
else
{
numPlayedBack++;
if (CConstVar.ShowMiss > 0 && gamestate.savedPmoveState[stateIndex].commandTime != pmove.cmd.serverTime)
{
CLog.Info("saved state miss");
}
pmove.playerState = gamestate.savedPmoveState[stateIndex];
stateIndex = (stateIndex + 1) % CConstVar.NUM_SAVED_STATES;
}
}
else
{
pmove.Move();
numPredicted++;
}
moved = true;
}
if (CConstVar.ShowMiss > 1)
{
CLog.Info("[%d : %d] ", pmove.cmd.serverTime, gamestate.time);
}
if (!moved)
{
if (CConstVar.ShowMiss > 0)
{
CLog.Info("not moved");
}
return;
}
AdjustPositionForMover(predictedPlayerState.origin, predictedPlayerState.groundEntityNum, gamestate.physicsTime, gamestate.time, out predictedPlayerState.origin, predictedPlayerState.viewangles, out predictedPlayerState.viewangles);
if (CConstVar.ShowMiss > 0)
{
if (predictedPlayerState.eventSequence > oldPlayerState.eventSequence + CConstVar.MAX_PS_EVENTS)
{
CLog.Info("dropped event");
}
}
}
private void ClientThink_real(GameEntity ent)
{
GameClient cl = ent.client;
if (cl.pers.connected != ClientConnState.CONNECTED)
{
return;
}
UserCmd ucmd = ent.client.pers.cmd;
if (ucmd.forwardmove != 0 || ucmd.rightmove != 0)
{
CLog.Info("cmd move {0}, {1}", ucmd.forwardmove, ucmd.rightmove);
}
if (ucmd.serverTime > time + 200)
{
ucmd.serverTime = time + 200;
}
if (ucmd.serverTime < time - 1000)
{
ucmd.serverTime = time - 1000;
}
//unlagged - backward reconciliation #4
//frameOffset应该是一帧内收到命令数据包的偏移毫秒数，依赖于服务器运行RunFrame的速度
cl.frameOffset = CDataModel.InputEvent.Milliseconds() - frameStartTime;
//unlagged - backward reconciliation #4
//unlagged - lag simulation #3
if (cl.pers.plOut > 0)
{
float thresh = cl.pers.plOut / 100f;
if (CUtils.Random() < thresh)
{
//这是丢失了的命令，不做任何事情
return;
}
}
//unlagged - lag simulation #3
//unlagged - true ping
cl.pers.pingSamples[cl.pers.sampleHead] = prevTime + cl.frameOffset - ucmd.serverTime;
cl.pers.sampleHead++;
if (cl.pers.sampleHead >= CConstVar.NUM_PING_SAMPLES)
{
cl.pers.sampleHead -= CConstVar.NUM_PING_SAMPLES;
}
if (CConstVar.TruePing)
{
int sum = 0;
for (int i = 0; i < CConstVar.NUM_PING_SAMPLES; i++)
{
sum += cl.pers.pingSamples[i];
}
cl.pers.realPing = sum / CConstVar.NUM_PING_SAMPLES;
}
else
{
cl.pers.realPing = cl.playerState.ping;
}
//unlagged - true ping
//unlagged - lag simulation #2
// cl.pers.cmdqueue[cl.pers.cmdhead] = cl.pers.cmd;
// cl.pers.cmdhead++;
// if(cl.pers.cmdhead >= CConstVar.MAX_LATENT_CMDS){
// cl.pers.cmdhead -= CConstVar.MAX_LATENT_CMDS;
// }
// if(cl.pers.latentCmds > 0){
// int time = ucmd.serverTime;
// int cmdindex = cl.pers.cmdhead - cl.pers.latentCmds - 1;
// while(cmdindex < 0){
// cmdindex += CConstVar.MAX_LATENT_CMDS;
// }
// cl.pers.cmd = cl.pers.cmdqueue[cmdindex];
// cl.pers.realPing += time - ucmd.serverTime;
// }
//unlagged - lag simulation #2
cl.attackTime = ucmd.serverTime;
cl.lastUpdateFrame = frameNum;
//unlagged - lag simulation #1
// if(cl.pers.latentSnaps > 0){
// cl.pers.realPing += cl.pers.latentSnaps * (1000 / CConstVar.SV_FPS);
// cl.attackTime -= cl.pers.latentSnaps * (1000 / CConstVar.SV_FPS);
// }
//unlagged - lag simulation #1
//unlagged - true ping
if (cl.pers.realPing < 0)
{
cl.pers.realPing = 0;
}
//unlagged - true ping
int msec = ucmd.serverTime - cl.playerState.commandTime;
if (msec > 200)
{
msec = 200;
}
if (CConstVar.PMoveMsec < 8)
{
CConstVar.PMoveMsec = 8;
}
if (CConstVar.PMoveMsec > 33)
{
CConstVar.PMoveMsec = 33;
}
if (CConstVar.PMoveFixed > 0 || cl.pers.pmoveFixed)
{
ucmd.serverTime = ((ucmd.serverTime + CConstVar.PMoveMsec - 1) / CConstVar.PMoveMsec) * CConstVar.PMoveMsec;
}
if (cl.sess.sessionTeam == TeamType.TEAM_SPECTATOR || cl.isEliminated)
{
if (cl.sess.spectatorState == SpectatorState.SCOREBOARD)
{
return;
}
SpectatorThink(ent, ucmd);
return;
}
if (cl.noclip)
{
cl.playerState.pmType = PMoveType.NOCLIP;
}
else if (cl.playerState.states[CConstVar.STAT_HEALTH] <= 0)
{
cl.playerState.pmType = PMoveType.DEAD;
}
else
{
cl.playerState.pmType = PMoveType.NORMAL;
}
// cl.playerState.gravity =
cl.playerState.speed = CConstVar.Speed;
int oldEventSeq = cl.playerState.eventSequence;
PMove pm = new PMove();
pm.playerState = cl.playerState;
pm.agent = cl.agent.Model;
ucmd.CopyTo(pm.cmd);
if (pm.playerState.pmType == PMoveType.DEAD)
{
// pm.tracemask
}
else if ((ent.sEnt.r.svFlags & SVFlags.BOT) != SVFlags.NONE)
{
// pm.
}
else
{
}
pm.pmoveFixed = CConstVar.PMoveFixed | (cl.pers.pmoveFixed ? 1 : 0);
pm.pmoveMsec = CConstVar.PMoveMsec;
pm.pmoveFloat = CConstVar.PMoveFloat;
pm.pmvoveFlags = CConstVar.dmFlags;
cl.oldOrigin = cl.playerState.origin;
pm.Move();
if (ent.client.playerState.eventSequence != oldEventSeq)
{
ent.eventTime = time;
}
if (CConstVar.SmoothClients > 1)
{
CUtils.BG_PlayerStateToEntityStateExtraPolate(ent.client.playerState, ref ent.sEnt.s, ent.client.playerState.commandTime, true);
}
else
{
CUtils.PlayerStateToEntityState(ent.client.playerState, ref ent.sEnt.s, true);
}
SendingPredictableEvents(ent.client.playerState);
if ((ent.client.playerState.entityFlags & EntityFlags.FIRING) == 0)
{
// cl.fireHeld = false;
}
ent.sEnt.s.pos.GetTrBase(ref ent.sEnt.r.currentOrigin);
// ent.sEnt.r.mins = pm.mins;
//执行客户端事件
ClientEvents(ent, oldEventSeq);
Server.Instance.LinkEntity(ent);
if (!ent.client.noclip)
{
TouchTrigger(ent);
}
ent.sEnt.r.currentOrigin = ent.client.playerState.origin;
ClientImpacts(ent, ref pm);
//保存触发器和客户端事件
if (ent.client.playerState.eventSequence != oldEventSeq)
{
ent.eventTime = time;
}
cl.oldButtons = cl.buttons;
cl.buttons = ucmd.buttons;
cl.latched_buttons |= cl.buttons & ~cl.oldButtons;
if (cl.playerState.states[CConstVar.STAT_HEALTH] <= 0)
{
if ((time > cl.respawnTime))
{
ClientRespawn(ent);
}
return;
}
}