// resend the data if needed
void Net_AckTicker(void)
{
#ifndef NONET
INT32 i;
for (i = 0; i < MAXACKPACKETS; i++)
{
const INT32 nodei = ackpak[i].destinationnode;
node_t *node = &nodes[nodei];
#ifdef NEWPING
if (ackpak[i].acknum && ackpak[i].senttime + NODETIMEOUT < I_GetTime())
#else
if (ackpak[i].acknum && ackpak[i].senttime + node->timeout < I_GetTime())
#endif
{
if (ackpak[i].resentnum > 10 && (node->flags & CLOSE))
{
DEBFILE(va("ack %d sent 10 times so connection is supposed lost: node %d\n",
i, nodei));
Net_CloseConnection(nodei | FORCECLOSE);
ackpak[i].acknum = 0;
continue;
}
#ifdef NEWPING
DEBFILE(va("Resend ack %d, %u<%d at %u\n", ackpak[i].acknum, ackpak[i].senttime,
NODETIMEOUT, I_GetTime()));
#else
DEBFILE(va("Resend ack %d, %u<%d at %u\n", ackpak[i].acknum, ackpak[i].senttime,
node->timeout, I_GetTime()));
#endif
M_Memcpy(netbuffer, ackpak[i].pak.raw, ackpak[i].length);
ackpak[i].senttime = I_GetTime();
ackpak[i].resentnum++;
ackpak[i].nextacknum = node->nextacknum;
retransmit++; // for stat
HSendPacket((INT32)(node - nodes), false, ackpak[i].acknum,
(size_t)(ackpak[i].length - BASEPACKETSIZE));
}
}
for (i = 1; i < MAXNETNODES; i++)
{
// this is something like node open flag
if (nodes[i].firstacktosend)
{
// we haven't sent a packet for a long time
// acknowledge packet if needed
if (nodes[i].lasttimeacktosend_sent + ACKTOSENDTIMEOUT < I_GetTime())
Net_SendAcks(i);
if (!(nodes[i].flags & CLOSE)
&& nodes[i].lasttimepacketreceived + connectiontimeout < I_GetTime())
{
Net_ConnectionTimeout(i);
}
}
}
#endif
}
// send special packet with only ack on it
void Net_SendAcks(INT32 node)
{
#ifdef NONET
(void)node;
#else
netbuffer->packettype = PT_NOTHING;
M_Memcpy(netbuffer->u.textcmd, nodes[node].acktosend, MAXACKTOSEND);
HSendPacket(node, false, 0, MAXACKTOSEND);
#endif
}
void NetUpdate (void)
{
int nowtime;
int newtics;
int i,j;
int realstart;
int gameticdiv;
// check time
nowtime = I_GetTime ()/ticdup;
newtics = nowtime - gametime;
gametime = nowtime;
if (newtics <= 0) // nothing new to update
goto listen;
if (skiptics <= newtics)
{
newtics -= skiptics;
skiptics = 0;
}
else
{
skiptics -= newtics;
newtics = 0;
}
netbuffer->player = consoleplayer;
// build new ticcmds for console player
gameticdiv = gametic/ticdup;
for (i=0 ; i<newtics ; i++)
{
I_StartTic ();
D_ProcessEvents ();
if (maketic - gameticdiv >= BACKUPTICS/2-1)
break; // can't hold any more
//printf ("mk:%i ",maketic);
G_BuildTiccmd (&localcmds[maketic%BACKUPTICS]);
maketic++;
}
if (singletics)
return; // singletic update is syncronous
// send the packet to the other nodes
for (i=0 ; i<doomcom->numnodes ; i++)
if (nodeingame[i])
{
netbuffer->starttic = realstart = resendto[i];
netbuffer->numtics = maketic - realstart;
if (netbuffer->numtics > BACKUPTICS)
I_Error ("NetUpdate: netbuffer->numtics > BACKUPTICS");
resendto[i] = maketic - doomcom->extratics;
for (j=0 ; j< netbuffer->numtics ; j++)
netbuffer->cmds[j] =
localcmds[(realstart+j)%BACKUPTICS];
if (remoteresend[i])
{
netbuffer->retransmitfrom = nettics[i];
HSendPacket (i, NCMD_RETRANSMIT);
}
else
{
netbuffer->retransmitfrom = 0;
HSendPacket (i, 0);
}
}
// listen for other packets
listen:
GetPackets ();
}
void D_ArbitrateNetStart (void)
{
int i;
boolean gotinfo[MAXNETNODES];
boolean gotClass[MAXNETNODES];
#ifdef __WATCOMC__
int nextTic;
extern volatile int ticcount;
nextTic = ticcount+8;
#endif
autostart = true;
memset (gotClass,0,sizeof(gotClass));
memset (gotinfo,0,sizeof(gotinfo));
gotClass[doomcom->consoleplayer] = true;
do
{
i = 0;
CheckAbort();
while(HGetPacket())
{ // Check for any incoming packets
if(netbuffer->checksum&NCMD_SETUP && netbuffer->starttic >= 64)
{
PlayerClass[netbuffer->player] = netbuffer->starttic&0x3f;
if(!gotClass[netbuffer->player])
{
gotClass[netbuffer->player] = true;
ST_NetProgress();
ST_Message("\n");
}
if(netbuffer->retransmitfrom)
{ // that node has received info from all other nodes
gotinfo[netbuffer->player] = true;
}
}
}
#ifdef __WATCOMC__
if(ticcount <= nextTic)
{ // only send packets every half second
continue;
}
nextTic = ticcount+8;
#endif
// Keep sending out packets containing the console class
for(i = 0; i < doomcom->numnodes; i++)
{
netbuffer->player = doomcom->consoleplayer;
netbuffer->starttic = PlayerClass[doomcom->consoleplayer]+64;
netbuffer->retransmitfrom = gotinfo[doomcom->consoleplayer];
netbuffer->numtics = 0;
HSendPacket(i, NCMD_SETUP);
}
for(i = 0; i < doomcom->numnodes; i++)
{ // Make sure that all nodes have sent class info
if (!gotClass[i])
{
ST_Message(".");
break;
}
}
if(i < doomcom->numnodes)
{
continue;
}
else
{ // consoleplayer has received all player classes
if(gotinfo[doomcom->consoleplayer])
{
CheckAbort();
}
else
{
gotinfo[doomcom->consoleplayer] = true;
ST_Message("All player classes received, ready to proceed\n");
ST_NetDone();
}
}
for (i = 0; i < doomcom->numnodes; i++)
{ // Make sure that all nodes are ready to proceed
if (!gotinfo[i])
{
break;
}
}
} while(i < doomcom->numnodes);
memset (gotinfo,0,sizeof(gotinfo));
if (doomcom->consoleplayer)
{ // listen for setup info from key player
// ST_Message ("listening for network start info...\n");
while (1)
{
CheckAbort ();
if (!HGetPacket ())
continue;
if(netbuffer->checksum & NCMD_SETUP && netbuffer->starttic < 64)
{
if (netbuffer->player != VERSION)
I_Error ("Different HEXEN versions cannot play a net game!");
startskill = netbuffer->retransmitfrom & 15;
deathmatch = (netbuffer->retransmitfrom & 0xc0) >> 6;
nomonsters = (netbuffer->retransmitfrom & 0x20) > 0;
respawnparm = (netbuffer->retransmitfrom & 0x10) > 0;
startmap = netbuffer->starttic & 0x3f;
startepisode = 1;
return;
}
}
}
else
{ // key player, send the setup info
// ST_Message ("sending network start info...\n");
do
{