static void NET_SV_AdvanceWindow(void)
{
unsigned int lowtic;
int i;
if (NET_SV_NumPlayers() <= 0)
{
return;
}
lowtic = NET_SV_LatestAcknowledged();
// Advance the recv window until it catches up with lowtic
while (recvwindow_start < lowtic)
{
boolean should_advance;
// Check we have tics from all players for first tic in
// the recv window
should_advance = true;
for (i=0; i<NET_MAXPLAYERS; ++i)
{
if (sv_players[i] == NULL || !ClientConnected(sv_players[i]))
{
continue;
}
if (!recvwindow[0][i].active)
{
should_advance = false;
break;
}
}
if (!should_advance)
{
// The first tic is not complete: ie. we have not
// received tics from all connected players. This can
// happen if only one player is in the game.
break;
}
// Advance the window
memmove(recvwindow, recvwindow + 1,
sizeof(*recvwindow) * (BACKUPTICS - 1));
memset(&recvwindow[BACKUPTICS-1], 0, sizeof(*recvwindow));
++recvwindow_start;
//printf("SV: advanced to %i\n", recvwindow_start);
}
}
static void NET_SV_PumpSendQueue(net_client_t *client)
{
net_full_ticcmd_t cmd;
int recv_index;
int i;
int starttic, endtic;
// If a client has not sent any acknowledgments for a while,
// wait until they catch up.
if (client->sendseq - NET_SV_LatestAcknowledged() > 40)
{
return;
}
// Work out the index into the receive window
recv_index = client->sendseq - recvwindow_start;
if (recv_index < 0 || recv_index >= BACKUPTICS)
{
return;
}
// Check if we can generate a new entry for the send queue
// using the data in recvwindow.
for (i=0; i<MAXPLAYERS; ++i)
{
if (sv_players[i] == client)
{
// Client does not rely on itself for data
continue;
}
if (sv_players[i] == NULL || !ClientConnected(sv_players[i]))
{
continue;
}
if (!recvwindow[recv_index][i].active)
{
// We do not have this player's ticcmd, so we cannot
// generate a complete command yet.
return;
}
}
//printf("SV: have complete ticcmd for %i\n", client->sendseq);
// We have all data we need to generate a command for this tic.
cmd.seq = client->sendseq;
// Add ticcmds from all players
cmd.latency = 0;
for (i=0; i<MAXPLAYERS; ++i)
{
net_client_recv_t *recvobj;
if (sv_players[i] == client)
{
// Not the player we are sending to
cmd.playeringame[i] = false;
continue;
}
if (sv_players[i] == NULL || !recvwindow[recv_index][i].active)
{
cmd.playeringame[i] = false;
continue;
}
cmd.playeringame[i] = true;
recvobj = &recvwindow[recv_index][i];
cmd.cmds[i] = recvobj->diff;
if (recvobj->latency > cmd.latency)
cmd.latency = recvobj->latency;
}
//printf("SV: %i: latency %i\n", client->player_number, cmd.latency);
// Add into the queue
client->sendqueue[client->sendseq % BACKUPTICS] = cmd;
// Transmit the new tic to the client
starttic = client->sendseq - sv_settings.extratics;
endtic = client->sendseq;
if (starttic < 0)
starttic = 0;
NET_SV_SendTics(client, starttic, endtic);
++client->sendseq;
}
static void NET_SV_PumpSendQueue(net_client_t *client)
{
net_full_ticcmd_t cmd;
int recv_index;
int num_players;
int i;
int starttic, endtic;
// If a client has not sent any acknowledgments for a while,
// wait until they catch up.
if (client->sendseq - NET_SV_LatestAcknowledged() > 40)
{
return;
}
// Work out the index into the receive window
recv_index = client->sendseq - recvwindow_start;
if (recv_index < 0 || recv_index >= BACKUPTICS)
{
return;
}
// Check if we can generate a new entry for the send queue
// using the data in recvwindow.
num_players = 0;
for (i=0; i<NET_MAXPLAYERS; ++i)
{
if (sv_players[i] == client)
{
// Client does not rely on itself for data
continue;
}
if (sv_players[i] == NULL || !ClientConnected(sv_players[i]))
{
continue;
}
if (!recvwindow[recv_index][i].active)
{
// We do not have this player's ticcmd, so we cannot
// generate a complete command yet.
return;
}
++num_players;
}
// If this is a game with only a single player in it, we might
// be sending a ticcmd set containing 0 ticcmds. This is fine;
// however, there's nothing to stop the game running on ahead
// and never stopping. Don't let the server get too far ahead
// of the client.
if (num_players == 0 && client->sendseq > recvwindow_start + 10)
{
return;
}
// We have all data we need to generate a command for this tic.
cmd.seq = client->sendseq;
// Add ticcmds from all players
cmd.latency = 0;
for (i=0; i<NET_MAXPLAYERS; ++i)
{
net_client_recv_t *recvobj;
if (sv_players[i] == client)
{
// Not the player we are sending to
cmd.playeringame[i] = false;
continue;
}
if (sv_players[i] == NULL || !recvwindow[recv_index][i].active)
{
cmd.playeringame[i] = false;
continue;
}
cmd.playeringame[i] = true;
recvobj = &recvwindow[recv_index][i];
cmd.cmds[i] = recvobj->diff;
if (recvobj->latency > cmd.latency)
cmd.latency = recvobj->latency;
}
//printf("SV: %i: latency %i\n", client->player_number, cmd.latency);
// Add into the queue
client->sendqueue[client->sendseq % BACKUPTICS] = cmd;
// Transmit the new tic to the client
starttic = client->sendseq - sv_settings.extratics;
endtic = client->sendseq;
if (starttic < 0)
starttic = 0;
NET_Log("server: send tics %d-%d to %s", starttic, endtic,
NET_AddrToString(client->addr));
NET_SV_SendTics(client, starttic, endtic);
++client->sendseq;
}
