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qzdoom/src/d_net.cpp
Christoph Oelckers ace3e29473 - removed the implicit conversion operators from FName. 
These were creating dangerous interdependencies. It is better to do explicit conversions when needed.
As an added plus, this means that zstring.h no longer depends on name.h which was very annoying.
2020-04-11 14:00:13 +02:00

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//-----------------------------------------------------------------------------
//
// Copyright 1993-1996 id Software
// Copyright 1999-2016 Randy Heit
// Copyright 2002-2016 Christoph Oelckers
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see http://www.gnu.org/licenses/
//
//-----------------------------------------------------------------------------
//
// DESCRIPTION:
// DOOM Network game communication and protocol,
// all OS independent parts.
//
//-----------------------------------------------------------------------------
#include <stddef.h>
#define __STDC_FORMAT_MACROS
#include <inttypes.h>
#include "version.h"
#include "menu/menu.h"
#include "i_video.h"
#include "i_net.h"
#include "g_game.h"
#include "c_console.h"
#include "d_netinf.h"
#include "d_net.h"
#include "cmdlib.h"
#include "m_cheat.h"
#include "p_local.h"
#include "c_dispatch.h"
#include "sbar.h"
#include "gi.h"
#include "m_misc.h"
#include "gameconfigfile.h"
#include "p_acs.h"
#include "p_trace.h"
#include "a_sharedglobal.h"
#include "st_start.h"
#include "teaminfo.h"
#include "p_conversation.h"
#include "d_event.h"
#include "p_enemy.h"
#include "m_argv.h"
#include "p_lnspec.h"
#include "p_spec.h"
#include "hardware.h"
#include "r_utility.h"
#include "a_keys.h"
#include "intermission/intermission.h"
#include "g_levellocals.h"
#include "actorinlines.h"
#include "events.h"
#include "i_time.h"
#include "i_system.h"
#include "vm.h"
#include "gstrings.h"
#include "s_music.h"
EXTERN_CVAR (Int, disableautosave)
EXTERN_CVAR (Int, autosavecount)
//#define SIMULATEERRORS (RAND_MAX/3)
#define SIMULATEERRORS 0
extern uint8_t *demo_p; // [RH] Special "ticcmds" get recorded in demos
extern FString savedescription;
extern FString savegamefile;
extern short consistancy[MAXPLAYERS][BACKUPTICS];
doomcom_t doomcom;
#define netbuffer (doomcom.data)
enum { NET_PeerToPeer, NET_PacketServer };
uint8_t NetMode = NET_PeerToPeer;
//
// NETWORKING
//
// gametic is the tic about to (or currently being) run
// maketic is the tick that hasn't had control made for it yet
// nettics[] has the maketics for all players
//
// a gametic cannot be run until nettics[] > gametic for all players
//
#define RESENDCOUNT 10
#define PL_DRONE 0x80 // bit flag in doomdata->player
ticcmd_t localcmds[LOCALCMDTICS];
FDynamicBuffer NetSpecs[MAXPLAYERS][BACKUPTICS];
ticcmd_t netcmds[MAXPLAYERS][BACKUPTICS];
int nettics[MAXNETNODES];
bool nodeingame[MAXNETNODES]; // set false as nodes leave game
bool nodejustleft[MAXNETNODES]; // set when a node just left
bool remoteresend[MAXNETNODES]; // set when local needs tics
int resendto[MAXNETNODES]; // set when remote needs tics
int resendcount[MAXNETNODES];
uint64_t lastrecvtime[MAXPLAYERS]; // [RH] Used for pings
uint64_t currrecvtime[MAXPLAYERS];
uint64_t lastglobalrecvtime; // Identify the last time a packet was received.
bool hadlate;
int netdelay[MAXNETNODES][BACKUPTICS]; // Used for storing network delay times.
int lastaverage;
int nodeforplayer[MAXPLAYERS];
int playerfornode[MAXNETNODES];
int maketic;
int skiptics;
int ticdup;
void D_ProcessEvents (void);
void G_BuildTiccmd (ticcmd_t *cmd);
void D_DoAdvanceDemo (void);
static void SendSetup (uint32_t playersdetected[MAXNETNODES], uint8_t gotsetup[MAXNETNODES], int len);
static void RunScript(uint8_t **stream, AActor *pawn, int snum, int argn, int always);
int reboundpacket;
uint8_t reboundstore[MAX_MSGLEN];
int frameon;
int frameskip[4];
int oldnettics;
int mastertics;
static int entertic;
static int oldentertics;
extern bool advancedemo;
CVAR (Bool, cl_capfps, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
CVAR(Bool, net_ticbalance, false, CVAR_SERVERINFO | CVAR_NOSAVE)
CUSTOM_CVAR(Int, net_extratic, 0, CVAR_SERVERINFO | CVAR_NOSAVE)
{
if (self < 0)
{
self = 0;
}
else if (self > 2)
{
self = 2;
}
}
#ifdef _DEBUG
CVAR(Int, net_fakelatency, 0, 0);
struct PacketStore
{
int timer;
doomcom_t message;
};
static TArray<PacketStore> InBuffer;
static TArray<PacketStore> OutBuffer;
#endif
// [RH] Special "ticcmds" get stored in here
static struct TicSpecial
{
uint8_t *streams[BACKUPTICS];
size_t used[BACKUPTICS];
uint8_t *streamptr;
size_t streamoffs;
size_t specialsize;
int lastmaketic;
bool okay;
TicSpecial ()
{
int i;
lastmaketic = -1;
specialsize = 256;
for (i = 0; i < BACKUPTICS; i++)
streams[i] = NULL;
for (i = 0; i < BACKUPTICS; i++)
{
streams[i] = (uint8_t *)M_Malloc (256);
used[i] = 0;
}
okay = true;
}
~TicSpecial ()
{
int i;
for (i = 0; i < BACKUPTICS; i++)
{
if (streams[i])
{
M_Free (streams[i]);
streams[i] = NULL;
used[i] = 0;
}
}
okay = false;
}
// Make more room for special commands.
void GetMoreSpace (size_t needed)
{
int i;
specialsize = MAX(specialsize * 2, needed + 30);
DPrintf (DMSG_NOTIFY, "Expanding special size to %zu\n", specialsize);
for (i = 0; i < BACKUPTICS; i++)
streams[i] = (uint8_t *)M_Realloc (streams[i], specialsize);
streamptr = streams[(maketic/ticdup)%BACKUPTICS] + streamoffs;
}
void CheckSpace (size_t needed)
{
if (streamoffs + needed >= specialsize)
GetMoreSpace (streamoffs + needed);
streamoffs += needed;
}
void NewMakeTic ()
{
int mt = maketic / ticdup;
if (lastmaketic != -1)
{
if (lastmaketic == mt)
return;
used[lastmaketic%BACKUPTICS] = streamoffs;
}
lastmaketic = mt;
streamptr = streams[mt%BACKUPTICS];
streamoffs = 0;
}
TicSpecial &operator << (uint8_t it)
{
if (streamptr)
{
CheckSpace (1);
WriteByte (it, &streamptr);
}
return *this;
}
TicSpecial &operator << (short it)
{
if (streamptr)
{
CheckSpace (2);
WriteWord (it, &streamptr);
}
return *this;
}
TicSpecial &operator << (int it)
{
if (streamptr)
{
CheckSpace (4);
WriteLong (it, &streamptr);
}
return *this;
}
TicSpecial &operator << (float it)
{
if (streamptr)
{
CheckSpace (4);
WriteFloat (it, &streamptr);
}
return *this;
}
TicSpecial &operator << (const char *it)
{
if (streamptr)
{
CheckSpace (strlen (it) + 1);
WriteString (it, &streamptr);
}
return *this;
}
} specials;
void Net_ClearBuffers ()
{
int i, j;
memset (localcmds, 0, sizeof(localcmds));
memset (netcmds, 0, sizeof(netcmds));
memset (nettics, 0, sizeof(nettics));
memset (nodeingame, 0, sizeof(nodeingame));
memset (nodeforplayer, 0, sizeof(nodeforplayer));
memset (playerfornode, 0, sizeof(playerfornode));
memset (remoteresend, 0, sizeof(remoteresend));
memset (resendto, 0, sizeof(resendto));
memset (resendcount, 0, sizeof(resendcount));
memset (lastrecvtime, 0, sizeof(lastrecvtime));
memset (currrecvtime, 0, sizeof(currrecvtime));
memset (consistancy, 0, sizeof(consistancy));
nodeingame[0] = true;
for (i = 0; i < MAXPLAYERS; i++)
{
for (j = 0; j < BACKUPTICS; j++)
{
NetSpecs[i][j].SetData (NULL, 0);
}
}
oldentertics = entertic;
gametic = 0;
maketic = 0;
lastglobalrecvtime = 0;
}
//
// [RH] Rewritten to properly calculate the packet size
// with our variable length commands.
//
int NetbufferSize ()
{
if (netbuffer[0] & (NCMD_EXIT | NCMD_SETUP))
{
return doomcom.datalength;
}
int k = 2, count, numtics;
if (netbuffer[0] & NCMD_RETRANSMIT)
k++;
if (NetMode == NET_PacketServer && doomcom.remotenode == nodeforplayer[Net_Arbitrator])
k++;
numtics = netbuffer[0] & NCMD_XTICS;
if (numtics == 3)
{
numtics += netbuffer[k++];
}
if (netbuffer[0] & NCMD_QUITTERS)
{
k += netbuffer[k] + 1;
}
// Network delay byte
k++;
if (netbuffer[0] & NCMD_MULTI)
{
count = netbuffer[k];
k += count;
}
else
{
count = 1;
}
// Need at least 3 bytes per tic per player
if (doomcom.datalength < k + 3 * count * numtics)
{
return k + 3 * count * numtics;
}
uint8_t *skipper = &netbuffer[k];
if ((netbuffer[0] & NCMD_EXIT) == 0)
{
while (count-- > 0)
{
SkipTicCmd (&skipper, numtics);
}
}
return int(skipper - netbuffer);
}
//
//
//
int ExpandTics (int low)
{
int delta;
int mt = maketic / ticdup;
delta = low - (mt&0xff);
if (delta >= -64 && delta <= 64)
return (mt&~0xff) + low;
if (delta > 64)
return (mt&~0xff) - 256 + low;
if (delta < -64)
return (mt&~0xff) + 256 + low;
I_Error ("ExpandTics: strange value %i at maketic %i", low, maketic);
return 0;
}
//
// HSendPacket
//
void HSendPacket (int node, int len)
{
if (debugfile && node != 0)
{
int i, k, realretrans;
if (netbuffer[0] & NCMD_SETUP)
{
fprintf (debugfile,"%i/%i send %i = SETUP [%3i]", gametic, maketic, node, len);
for (i = 0; i < len; i++)
fprintf (debugfile," %2x", ((uint8_t *)netbuffer)[i]);
}
else if (netbuffer[0] & NCMD_EXIT)
{
fprintf (debugfile,"%i/%i send %i = EXIT [%3i]", gametic, maketic, node, len);
for (i = 0; i < len; i++)
fprintf (debugfile," %2x", ((uint8_t *)netbuffer)[i]);
}
else
{
k = 2;
if (NetMode == NET_PacketServer && consoleplayer == Net_Arbitrator &&
node != 0)
{
k++;
}
if (netbuffer[0] & NCMD_RETRANSMIT)
realretrans = ExpandTics (netbuffer[k++]);
else
realretrans = -1;
int numtics = netbuffer[0] & 3;
if (numtics == 3)
numtics += netbuffer[k++];
fprintf (debugfile,"%i/%i send %i = (%i + %i, R %i) [%3i]",
gametic, maketic,
node,
ExpandTics(netbuffer[1]),
numtics, realretrans, len);
for (i = 0; i < len; i++)
fprintf (debugfile, "%c%2x", i==k?'|':' ', ((uint8_t *)netbuffer)[i]);
}
fprintf (debugfile, " [[ ");
for (i = 0; i < doomcom.numnodes; ++i)
{
if (nodeingame[i])
{
fprintf (debugfile, "%d ", nettics[i]);
}
else
{
fprintf (debugfile, "--- ");
}
}
fprintf (debugfile, "]]\n");
}
if (node == 0)
{
memcpy (reboundstore, netbuffer, len);
reboundpacket = len;
return;
}
if (demoplayback)
return;
if (!netgame)
I_Error ("Tried to transmit to another node");
#if SIMULATEERRORS
if (rand() < SIMULATEERRORS)
{
if (debugfile)
fprintf (debugfile, "Drop!\n");
return;
}
#endif
doomcom.command = CMD_SEND;
doomcom.remotenode = node;
doomcom.datalength = len;
#ifdef _DEBUG
if (net_fakelatency / 2 > 0)
{
PacketStore store;
store.message = doomcom;
store.timer = I_GetTime() + ((net_fakelatency / 2) / (1000 / TICRATE));
OutBuffer.Push(store);
}
else
I_NetCmd();
for (unsigned int i = 0; i < OutBuffer.Size(); i++)
{
if (OutBuffer[i].timer <= I_GetTime())
{
doomcom = OutBuffer[i].message;
I_NetCmd();
OutBuffer.Delete(i);
i = -1;
}
}
#else
I_NetCmd();
#endif
}
//
// HGetPacket
// Returns false if no packet is waiting
//
bool HGetPacket (void)
{
if (reboundpacket)
{
memcpy (netbuffer, reboundstore, reboundpacket);
doomcom.remotenode = 0;
reboundpacket = 0;
return true;
}
if (!netgame)
return false;
if (demoplayback)
return false;
doomcom.command = CMD_GET;
I_NetCmd ();
#ifdef _DEBUG
if (net_fakelatency / 2 > 0 && doomcom.remotenode != -1)
{
PacketStore store;
store.message = doomcom;
store.timer = I_GetTime() + ((net_fakelatency / 2) / (1000 / TICRATE));
InBuffer.Push(store);
doomcom.remotenode = -1;
}
if (doomcom.remotenode == -1)
{
bool gotmessage = false;
for (unsigned int i = 0; i < InBuffer.Size(); i++)
{
if (InBuffer[i].timer <= I_GetTime())
{
doomcom = InBuffer[i].message;
InBuffer.Delete(i);
gotmessage = true;
break;
}
}
if (!gotmessage)
return false;
}
#else
if (doomcom.remotenode == -1)
{
return false;
}
#endif
if (debugfile)
{
int i, k, realretrans;
if (netbuffer[0] & NCMD_SETUP)
{
fprintf (debugfile,"%i/%i get %i = SETUP [%3i]", gametic, maketic, doomcom.remotenode, doomcom.datalength);
for (i = 0; i < doomcom.datalength; i++)
fprintf (debugfile, " %2x", ((uint8_t *)netbuffer)[i]);
fprintf (debugfile, "\n");
}
else if (netbuffer[0] & NCMD_EXIT)
{
fprintf (debugfile,"%i/%i get %i = EXIT [%3i]", gametic, maketic, doomcom.remotenode, doomcom.datalength);
for (i = 0; i < doomcom.datalength; i++)
fprintf (debugfile, " %2x", ((uint8_t *)netbuffer)[i]);
fprintf (debugfile, "\n");
}
else {
k = 2;
if (NetMode == NET_PacketServer &&
doomcom.remotenode == nodeforplayer[Net_Arbitrator])
{
k++;
}
if (netbuffer[0] & NCMD_RETRANSMIT)
realretrans = ExpandTics (netbuffer[k++]);
else
realretrans = -1;
int numtics = netbuffer[0] & 3;
if (numtics == 3)
numtics += netbuffer[k++];
fprintf (debugfile,"%i/%i get %i = (%i + %i, R %i) [%3i]",
gametic, maketic,
doomcom.remotenode,
ExpandTics(netbuffer[1]),
numtics, realretrans, doomcom.datalength);
for (i = 0; i < doomcom.datalength; i++)
fprintf (debugfile, "%c%2x", i==k?'|':' ', ((uint8_t *)netbuffer)[i]);
if (numtics)
fprintf (debugfile, " <<%4x>>\n",
consistancy[playerfornode[doomcom.remotenode]][nettics[doomcom.remotenode]%BACKUPTICS] & 0xFFFF);
else
fprintf (debugfile, "\n");
}
}
if (doomcom.datalength != NetbufferSize ())
{
Printf("Bad packet length %i (calculated %i)\n",
doomcom.datalength, NetbufferSize());
if (debugfile)
fprintf (debugfile,"---bad packet length %i (calculated %i)\n",
doomcom.datalength, NetbufferSize());
return false;
}
return true;
}
void PlayerIsGone (int netnode, int netconsole)
{
int i;
if (nodeingame[netnode])
{
for (i = netnode + 1; i < doomcom.numnodes; ++i)
{
if (nodeingame[i])
break;
}
if (i == doomcom.numnodes)
{
doomcom.numnodes = netnode;
}
if (playeringame[netconsole])
{
players[netconsole].playerstate = PST_GONE;
}
nodeingame[netnode] = false;
nodejustleft[netnode] = false;
}
else if (nodejustleft[netnode]) // Packet Server
{
if (netnode + 1 == doomcom.numnodes)
{
doomcom.numnodes = netnode;
}
if (playeringame[netconsole])
{
players[netconsole].playerstate = PST_GONE;
}
nodejustleft[netnode] = false;
}
else return;
if (netconsole == Net_Arbitrator)
{
// Pick a new network arbitrator
for (int i = 0; i < MAXPLAYERS; i++)
{
if (i != netconsole && playeringame[i] && players[i].Bot == NULL)
{
Net_Arbitrator = i;
players[i].settings_controller = true;
Printf("%s is the new arbitrator\n", players[i].userinfo.GetName());
break;
}
}
}
if (debugfile && NetMode == NET_PacketServer)
{
if (Net_Arbitrator == consoleplayer)
{
fprintf(debugfile, "I am the new master!\n");
}
else
{
fprintf(debugfile, "Node %d is the new master!\n", nodeforplayer[Net_Arbitrator]);
}
}
if (demorecording)
{
G_CheckDemoStatus ();
//WriteByte (DEM_DROPPLAYER, &demo_p);
//WriteByte ((uint8_t)netconsole, &demo_p);
}
}
//
// GetPackets
//
void GetPackets (void)
{
int netconsole;
int netnode;
int realend;
int realstart;
int numtics;
int retransmitfrom;
int k;
uint8_t playerbytes[MAXNETNODES];
int numplayers;
while ( HGetPacket() )
{
if (netbuffer[0] & NCMD_SETUP)
{
if (consoleplayer == Net_Arbitrator)
{
// This player apparantly doesn't realise the game has started
netbuffer[0] = NCMD_SETUP+3;
HSendPacket (doomcom.remotenode, 1);
}
continue; // extra setup packet
}
netnode = doomcom.remotenode;
netconsole = playerfornode[netnode] & ~PL_DRONE;
// [RH] Get "ping" times - totally useless, since it's bound to the frequency
// packets go out at.
lastrecvtime[netconsole] = currrecvtime[netconsole];
currrecvtime[netconsole] = I_msTime ();
// check for exiting the game
if (netbuffer[0] & NCMD_EXIT)
{
if (!nodeingame[netnode])
continue;
if (NetMode != NET_PacketServer || netconsole == Net_Arbitrator)
{
PlayerIsGone (netnode, netconsole);
if (NetMode == NET_PacketServer)
{
uint8_t *foo = &netbuffer[2];
for (int i = 0; i < MAXPLAYERS; ++i)
{
if (playeringame[i])
{
int resend = ReadLong (&foo);
if (i != consoleplayer)
{
resendto[nodeforplayer[i]] = resend;
}
}
}
}
}
else
{
nodeingame[netnode] = false;
nodejustleft[netnode] = true;
}
continue;
}
k = 2;
if (NetMode == NET_PacketServer &&
netconsole == Net_Arbitrator &&
netconsole != consoleplayer)
{
mastertics = ExpandTics (netbuffer[k++]);
}
if (netbuffer[0] & NCMD_RETRANSMIT)
{
retransmitfrom = netbuffer[k++];
}
else
{
retransmitfrom = 0;
}
numtics = (netbuffer[0] & NCMD_XTICS);
if (numtics == 3)
{
numtics += netbuffer[k++];
}
if (netbuffer[0] & NCMD_QUITTERS)
{
numplayers = netbuffer[k++];
for (int i = 0; i < numplayers; ++i)
{
PlayerIsGone (nodeforplayer[netbuffer[k]], netbuffer[k]);
k++;
}
}
// Pull current network delay from node
netdelay[netnode][(nettics[netnode]+1) % BACKUPTICS] = netbuffer[k++];
playerbytes[0] = netconsole;
if (netbuffer[0] & NCMD_MULTI)
{
numplayers = netbuffer[k++];
memcpy (playerbytes+1, &netbuffer[k], numplayers - 1);
k += numplayers - 1;
}
else
{
numplayers = 1;
}
// to save bytes, only the low byte of tic numbers are sent
// Figure out what the rest of the bytes are
realstart = ExpandTics (netbuffer[1]);
realend = (realstart + numtics);
nodeforplayer[netconsole] = netnode;
// check for retransmit request
if (resendcount[netnode] <= 0 && (netbuffer[0] & NCMD_RETRANSMIT))
{
resendto[netnode] = ExpandTics (retransmitfrom);
if (debugfile)
fprintf (debugfile,"retransmit from %i\n", resendto[netnode]);
resendcount[netnode] = RESENDCOUNT;
}
else
{
resendcount[netnode]--;
}
// check for out of order / duplicated packet
if (realend == nettics[netnode])
continue;
if (realend < nettics[netnode])
{
if (debugfile)
fprintf (debugfile, "out of order packet (%i + %i)\n" ,
realstart, numtics);
continue;
}
// check for a missed packet
if (realstart > nettics[netnode])
{
// stop processing until the other system resends the missed tics
if (debugfile)
fprintf (debugfile, "missed tics from %i (%i to %i)\n",
netnode, nettics[netnode], realstart);
remoteresend[netnode] = true;
continue;
}
// update command store from the packet
{
uint8_t *start;
int i, tics;
remoteresend[netnode] = false;
start = &netbuffer[k];
for (i = 0; i < numplayers; ++i)
{
int node = nodeforplayer[playerbytes[i]];
SkipTicCmd (&start, nettics[node] - realstart);
for (tics = nettics[node]; tics < realend; tics++)
ReadTicCmd (&start, playerbytes[i], tics);
nettics[nodeforplayer[playerbytes[i]]] = realend;
}
}
}
}
//
// NetUpdate
// Builds ticcmds for console player,
// sends out a packet
//
int gametime;
void NetUpdate (void)
{
int lowtic;
int nowtime;
int newtics;
int i,j;
int realstart;
uint8_t *cmddata;
bool resendOnly;
GC::CheckGC();
if (ticdup == 0)
{
return;
}
// check time
nowtime = I_GetTime ();
newtics = nowtime - gametime;
gametime = nowtime;
if (newtics <= 0) // nothing new to update
{
GetPackets ();
return;
}
if (skiptics <= newtics)
{
newtics -= skiptics;
skiptics = 0;
}
else
{
skiptics -= newtics;
newtics = 0;
}
// build new ticcmds for console player
for (i = 0; i < newtics; i++)
{
I_StartTic ();
D_ProcessEvents ();
if (pauseext || (maketic - gametic) / ticdup >= BACKUPTICS/2-1)
break; // can't hold any more
//Printf ("mk:%i ",maketic);
G_BuildTiccmd (&localcmds[maketic % LOCALCMDTICS]);
maketic++;
if (ticdup == 1 || maketic == 0)
{
Net_NewMakeTic ();
}
else
{
// Once ticdup tics have been collected, average their movements
// and combine their buttons, since they will all be sent as a
// single tic that gets duplicated ticdup times. Even with ticdup,
// tics are still collected at the normal rate so that, with the
// help of prediction, the game seems as responsive as normal.
if (maketic % ticdup != 0)
{
int mod = maketic - maketic % ticdup;
int j;
// Update the buttons for all tics in this ticdup set as soon as
// possible so that the prediction shows jumping as correctly as
// possible. (If you press +jump in the middle of a ticdup set,
// the jump will actually begin at the beginning of the set, not
// in the middle.)
for (j = maketic-2; j >= mod; --j)
{
localcmds[j % LOCALCMDTICS].ucmd.buttons |=
localcmds[(j + 1) % LOCALCMDTICS].ucmd.buttons;
}
}
else
{
// Average the ticcmds between these tics to get the
// movement that is actually sent across the network. We
// need to update them in all the localcmds slots that
// are dupped so that prediction works properly.
int mod = maketic - ticdup;
int modp, j;
int pitch = 0;
int yaw = 0;
int roll = 0;
int forwardmove = 0;
int sidemove = 0;
int upmove = 0;
for (j = 0; j < ticdup; ++j)
{
modp = (mod + j) % LOCALCMDTICS;
pitch += localcmds[modp].ucmd.pitch;
yaw += localcmds[modp].ucmd.yaw;
roll += localcmds[modp].ucmd.roll;
forwardmove += localcmds[modp].ucmd.forwardmove;
sidemove += localcmds[modp].ucmd.sidemove;
upmove += localcmds[modp].ucmd.upmove;
}
pitch /= ticdup;
yaw /= ticdup;
roll /= ticdup;
forwardmove /= ticdup;
sidemove /= ticdup;
upmove /= ticdup;
for (j = 0; j < ticdup; ++j)
{
modp = (mod + j) % LOCALCMDTICS;
localcmds[modp].ucmd.pitch = pitch;
localcmds[modp].ucmd.yaw = yaw;
localcmds[modp].ucmd.roll = roll;
localcmds[modp].ucmd.forwardmove = forwardmove;
localcmds[modp].ucmd.sidemove = sidemove;
localcmds[modp].ucmd.upmove = upmove;
}
Net_NewMakeTic ();
}
}
}
if (singletics)
return; // singletic update is synchronous
if (demoplayback)
{
resendto[0] = nettics[0] = (maketic / ticdup);
return; // Don't touch netcmd data while playing a demo, as it'll already exist.
}
// If maketic didn't cross a ticdup boundary, only send packets
// to players waiting for resends.
resendOnly = (maketic / ticdup) == (maketic - i) / ticdup;
// send the packet to the other nodes
int count = 1;
int quitcount = 0;
if (consoleplayer == Net_Arbitrator)
{
if (NetMode == NET_PacketServer)
{
for (j = 0; j < MAXPLAYERS; j++)
{
if (playeringame[j] && players[j].Bot == NULL)
{
count++;
}
}
// The loop above added the local player to the count a second time,
// and it also added the player being sent the packet to the count.
count -= 2;
for (j = 0; j < doomcom.numnodes; ++j)
{
if (nodejustleft[j])
{
if (count == 0)
{
PlayerIsGone (j, playerfornode[j]);
}
else
{
quitcount++;
}
}
}
if (count == 0)
{
count = 1;
}
}
}
for (i = 0; i < doomcom.numnodes; i++)
{
uint8_t playerbytes[MAXPLAYERS];
if (!nodeingame[i])
{
continue;
}
if (NetMode == NET_PacketServer &&
consoleplayer != Net_Arbitrator &&
i != nodeforplayer[Net_Arbitrator] &&
i != 0)
{
continue;
}
if (resendOnly && resendcount[i] <= 0 && !remoteresend[i] && nettics[i])
{
continue;
}
int numtics;
int k;
lowtic = maketic / ticdup;
netbuffer[0] = 0;
netbuffer[1] = realstart = resendto[i];
k = 2;
if (NetMode == NET_PacketServer &&
consoleplayer == Net_Arbitrator &&
i != 0)
{
for (j = 1; j < doomcom.numnodes; ++j)
{
if (nodeingame[j] && nettics[j] < lowtic && j != i)
{
lowtic = nettics[j];
}
}
netbuffer[k++] = lowtic;
}
numtics = MAX(0, lowtic - realstart);
if (numtics > BACKUPTICS)
I_Error ("NetUpdate: Node %d missed too many tics", i);
switch (net_extratic)
{
case 0:
default:
resendto[i] = lowtic; break;
case 1: resendto[i] = MAX(0, lowtic - 1); break;
case 2: resendto[i] = nettics[i]; break;
}
if (numtics == 0 && resendOnly && !remoteresend[i] && nettics[i])
{
continue;
}
if (remoteresend[i])
{
netbuffer[0] |= NCMD_RETRANSMIT;
netbuffer[k++] = nettics[i];
}
if (numtics < 3)
{
netbuffer[0] |= numtics;
}
else
{
netbuffer[0] |= NCMD_XTICS;
netbuffer[k++] = numtics - 3;
}
if (quitcount > 0)
{
netbuffer[0] |= NCMD_QUITTERS;
netbuffer[k++] = quitcount;
for (int l = 0; l < doomcom.numnodes; ++l)
{
if (nodejustleft[l])
{
netbuffer[k++] = playerfornode[l];
}
}
}
// Send current network delay
// The number of tics we just made should be removed from the count.
netbuffer[k++] = ((maketic - numtics - gametic) / ticdup);
if (numtics > 0)
{
int l;
if (count > 1 && i != 0 && consoleplayer == Net_Arbitrator)
{
netbuffer[0] |= NCMD_MULTI;
netbuffer[k++] = count;
if (NetMode == NET_PacketServer)
{
for (l = 1, j = 0; j < MAXPLAYERS; j++)
{
if (playeringame[j] && players[j].Bot == NULL && j != playerfornode[i] && j != consoleplayer)
{
playerbytes[l++] = j;
netbuffer[k++] = j;
}
}
}
}
cmddata = &netbuffer[k];
for (l = 0; l < count; ++l)
{
for (j = 0; j < numtics; j++)
{
int start = realstart + j, prev = start - 1;
int localstart, localprev;
localstart = (start * ticdup) % LOCALCMDTICS;
localprev = (prev * ticdup) % LOCALCMDTICS;
start %= BACKUPTICS;
prev %= BACKUPTICS;
// The local player has their tics sent first, followed by
// the other players.
if (l == 0)
{
WriteWord (localcmds[localstart].consistancy, &cmddata);
// [RH] Write out special "ticcmds" before real ticcmd
if (specials.used[start])
{
memcpy (cmddata, specials.streams[start], specials.used[start]);
cmddata += specials.used[start];
}
WriteUserCmdMessage (&localcmds[localstart].ucmd,
localprev >= 0 ? &localcmds[localprev].ucmd : NULL, &cmddata);
}
else if (i != 0)
{
int len;
uint8_t *spec;
WriteWord (netcmds[playerbytes[l]][start].consistancy, &cmddata);
spec = NetSpecs[playerbytes[l]][start].GetData (&len);
if (spec != NULL)
{
memcpy (cmddata, spec, len);
cmddata += len;
}
WriteUserCmdMessage (&netcmds[playerbytes[l]][start].ucmd,
prev >= 0 ? &netcmds[playerbytes[l]][prev].ucmd : NULL, &cmddata);
}
}
}
HSendPacket (i, int(cmddata - netbuffer));
}
else
{
HSendPacket (i, k);
}
}
// listen for other packets
GetPackets ();
if (!resendOnly)
{
// ideally nettics[0] should be 1 - 3 tics above lowtic
// if we are consistantly slower, speed up time
// [RH] I had erroneously assumed frameskip[] had 4 entries
// because there were 4 players, but that's not the case at
// all. The game is comparing the lag behind the master for
// four runs of TryRunTics. If our tic count is ahead of the
// master all 4 times, the next run of NetUpdate will not
// process any new input. If we have less input than the
// master, the next run of NetUpdate will process extra tics
// (because gametime gets decremented here).
// the key player does not adapt
if (consoleplayer != Net_Arbitrator)
{
// I'm not sure about this when using a packet server, because
// if left unmodified from the P2P version, it can make the game
// very jerky. The way I have it written right now basically means
// that it won't adapt. Fortunately, player prediction helps
// alleviate the lag somewhat.
if (NetMode == NET_PeerToPeer)
{
int totalavg = 0;
if (net_ticbalance)
{
// Try to guess ahead the time it takes to send responses to the slowest node
int nodeavg = 0, arbavg = 0;
for (j = 0; j < BACKUPTICS; j++)
{
arbavg += netdelay[nodeforplayer[Net_Arbitrator]][j];
nodeavg += netdelay[0][j];
}
arbavg /= BACKUPTICS;
nodeavg /= BACKUPTICS;
// We shouldn't adapt if we are already the arbitrator isn't what we are waiting for, otherwise it just adds more latency
if (arbavg > nodeavg)
{
lastaverage = totalavg = ((arbavg + nodeavg) / 2);
}
else
{
// Allow room to guess two tics ahead
if (nodeavg > (arbavg + 2) && lastaverage > 0)
lastaverage--;
totalavg = lastaverage;
}
}
mastertics = nettics[nodeforplayer[Net_Arbitrator]] + totalavg;
}
if (nettics[0] <= mastertics)
{
gametime--;
if (debugfile) fprintf(debugfile, "-");
}
if (NetMode != NET_PacketServer)
{
frameskip[(maketic / ticdup) & 3] = (oldnettics > mastertics);
}
else
{
frameskip[(maketic / ticdup) & 3] = (oldnettics - mastertics) > 3;
}
if (frameskip[0] && frameskip[1] && frameskip[2] && frameskip[3])
{
skiptics = 1;
if (debugfile) fprintf(debugfile, "+");
}
oldnettics = nettics[0];
}
}
}
//
// D_ArbitrateNetStart
//
// User info packets look like this:
//
// 0 One byte set to NCMD_SETUP or NCMD_SETUP+1; if NCMD_SETUP+1, omit byte 9
// 1 One byte for the player's number
//2-4 Three bytes for the game version (255,high byte,low byte)
//5-8 A bit mask for each player the sender knows about
// 9 The high bit is set if the sender got the game info
// 10 A stream of bytes with the user info
//
// The guests always send NCMD_SETUP packets, and the host always
// sends NCMD_SETUP+1 packets.
//
// Game info packets look like this:
//
// 0 One byte set to NCMD_SETUP+2
// 1 One byte for ticdup setting
// 2 One byte for NetMode setting
// 3 String with starting map's name
// . Four bytes for the RNG seed
// . Stream containing remaining game info
//
// Finished packet looks like this:
//
// 0 One byte set to NCMD_SETUP+3
//
// Each machine sends user info packets to the host. The host sends user
// info packets back to the other machines as well as game info packets.
// Negotiation is done when all the guests have reported to the host that
// they know about the other nodes.
struct ArbitrateData
{
uint32_t playersdetected[MAXNETNODES];
uint8_t gotsetup[MAXNETNODES];
};
bool DoArbitrate (void *userdata)
{
ArbitrateData *data = (ArbitrateData *)userdata;
char *s;
uint8_t *stream;
int version;
int node;
int i, j;
while (HGetPacket ())
{
if (netbuffer[0] == NCMD_EXIT)
{
I_FatalError ("The game was aborted.");
}
if (doomcom.remotenode == 0)
{
continue;
}
if (netbuffer[0] == NCMD_SETUP || netbuffer[0] == NCMD_SETUP+1) // got user info
{
node = (netbuffer[0] == NCMD_SETUP) ? doomcom.remotenode : nodeforplayer[netbuffer[1]];
data->playersdetected[node] =
(netbuffer[5] << 24) | (netbuffer[6] << 16) | (netbuffer[7] << 8) | netbuffer[8];
if (netbuffer[0] == NCMD_SETUP)
{ // Sent to host
data->gotsetup[node] = netbuffer[9] & 0x80;
stream = &netbuffer[10];
}
else
{ // Sent from host
stream = &netbuffer[9];
}
D_ReadUserInfoStrings (netbuffer[1], &stream, false);
if (!nodeingame[node])
{
version = (netbuffer[2] << 16) | (netbuffer[3] << 8) | netbuffer[4];
if (version != (0xFF0000 | NETGAMEVERSION))
{
I_Error ("Different " GAMENAME " versions cannot play a net game");
}
playeringame[netbuffer[1]] = true;
nodeingame[node] = true;
data->playersdetected[0] |= 1 << netbuffer[1];
StartScreen->NetMessage ("Found %s (node %d, player %d)",
players[netbuffer[1]].userinfo.GetName(),
node, netbuffer[1]+1);
}
}
else if (netbuffer[0] == NCMD_SETUP+2) // got game info
{
data->gotsetup[0] = 0x80;
ticdup = doomcom.ticdup = netbuffer[1];
NetMode = netbuffer[2];
stream = &netbuffer[3];
s = ReadString (&stream);
startmap = s;
delete[] s;
rngseed = ReadLong (&stream);
C_ReadCVars (&stream);
}
else if (netbuffer[0] == NCMD_SETUP+3)
{
return true;
}
}
// If everybody already knows everything, it's time to go
if (consoleplayer == Net_Arbitrator)
{
for (i = 0; i < doomcom.numnodes; ++i)
if (data->playersdetected[i] != uint32_t(1 << doomcom.numnodes) - 1 || !data->gotsetup[i])
break;
if (i == doomcom.numnodes)
return true;
}
netbuffer[2] = 255;
netbuffer[3] = (NETGAMEVERSION >> 8) & 255;
netbuffer[4] = NETGAMEVERSION & 255;
netbuffer[5] = data->playersdetected[0] >> 24;
netbuffer[6] = data->playersdetected[0] >> 16;
netbuffer[7] = data->playersdetected[0] >> 8;
netbuffer[8] = data->playersdetected[0];
if (consoleplayer != Net_Arbitrator)
{ // Send user info for the local node
netbuffer[0] = NCMD_SETUP;
netbuffer[1] = consoleplayer;
netbuffer[9] = data->gotsetup[0];
stream = &netbuffer[10];
D_WriteUserInfoStrings (consoleplayer, &stream, true);
SendSetup (data->playersdetected, data->gotsetup, int(stream - netbuffer));
}
else
{ // Send user info for all nodes
netbuffer[0] = NCMD_SETUP+1;
for (i = 1; i < doomcom.numnodes; ++i)
{
for (j = 0; j < doomcom.numnodes; ++j)
{
// Send info about player j to player i?
if ((data->playersdetected[0] & (1<<j)) && !(data->playersdetected[i] & (1<<j)))
{
netbuffer[1] = j;
stream = &netbuffer[9];
D_WriteUserInfoStrings (j, &stream, true);
HSendPacket (i, int(stream - netbuffer));
}
}
}
}
// If we're the host, send the game info, too
if (consoleplayer == Net_Arbitrator)
{
netbuffer[0] = NCMD_SETUP+2;
netbuffer[1] = (uint8_t)doomcom.ticdup;
netbuffer[2] = NetMode;
stream = &netbuffer[3];
WriteString (startmap, &stream);
WriteLong (rngseed, &stream);
C_WriteCVars (&stream, CVAR_SERVERINFO, true);
SendSetup (data->playersdetected, data->gotsetup, int(stream - netbuffer));
}
return false;
}
bool D_ArbitrateNetStart (void)
{
ArbitrateData data;
int i;
// Return right away if we're just playing with ourselves.
if (doomcom.numnodes == 1)
return true;
autostart = true;
memset (data.playersdetected, 0, sizeof(data.playersdetected));
memset (data.gotsetup, 0, sizeof(data.gotsetup));
// The arbitrator knows about himself, but the other players must
// be told about themselves, in case the host had to adjust their
// userinfo (e.g. assign them to a different team).
if (consoleplayer == Net_Arbitrator)
{
data.playersdetected[0] = 1 << consoleplayer;
}
// Assign nodes to players. The local player is always node 0.
// If the local player is not the host, then the host is node 1.
// Any remaining players are assigned node numbers in the order
// they were detected.
playerfornode[0] = consoleplayer;
nodeforplayer[consoleplayer] = 0;
if (consoleplayer == Net_Arbitrator)
{
for (i = 1; i < doomcom.numnodes; ++i)
{
playerfornode[i] = i;
nodeforplayer[i] = i;
}
}
else
{
playerfornode[1] = 0;
nodeforplayer[0] = 1;
for (i = 1; i < doomcom.numnodes; ++i)
{
if (i < consoleplayer)
{
playerfornode[i+1] = i;
nodeforplayer[i] = i+1;
}
else if (i > consoleplayer)
{
playerfornode[i] = i;
nodeforplayer[i] = i;
}
}
}
if (consoleplayer == Net_Arbitrator)
{
data.gotsetup[0] = 0x80;
}
StartScreen->NetInit ("Exchanging game information", 1);
if (!StartScreen->NetLoop (DoArbitrate, &data))
{
return false;
}
if (consoleplayer == Net_Arbitrator)
{
netbuffer[0] = NCMD_SETUP+3;
SendSetup (data.playersdetected, data.gotsetup, 1);
}
if (debugfile)
{
for (i = 0; i < doomcom.numnodes; ++i)
{
fprintf (debugfile, "player %d is on node %d\n", i, nodeforplayer[i]);
}
}
StartScreen->NetDone();
return true;
}
static void SendSetup (uint32_t playersdetected[MAXNETNODES], uint8_t gotsetup[MAXNETNODES], int len)
{
if (consoleplayer != Net_Arbitrator)
{
if (playersdetected[1] & (1 << consoleplayer))
{
HSendPacket (1, 10);
}
else
{
HSendPacket (1, len);
}
}
else
{
for (int i = 1; i < doomcom.numnodes; ++i)
{
if (!gotsetup[i] || netbuffer[0] == NCMD_SETUP+3)
{
HSendPacket (i, len);
}
}
}
}
//
// D_CheckNetGame
// Works out player numbers among the net participants
//
bool D_CheckNetGame (void)
{
const char *v;
int i;
for (i = 0; i < MAXNETNODES; i++)
{
nodeingame[i] = false;
nettics[i] = 0;
remoteresend[i] = false; // set when local needs tics
resendto[i] = 0; // which tic to start sending
}
// Packet server has proven to be rather slow over the internet. Print a warning about it.
v = Args->CheckValue("-netmode");
if (v != NULL && (atoi(v) != 0))
{
Printf(TEXTCOLOR_YELLOW "Notice: Using PacketServer (netmode 1) over the internet is prone to running too slow on some internet configurations."
"\nIf the game is running well below expected speeds, use netmode 0 (P2P) instead.\n");
}
int result = I_InitNetwork ();
// I_InitNetwork sets doomcom and netgame
if (result == -1)
{
return false;
}
else if (result > 0)
{
// For now, stop auto selecting PacketServer, as it's more likely to cause confusion.
//NetMode = NET_PacketServer;
}
if (doomcom.id != DOOMCOM_ID)
{
I_FatalError ("Doomcom buffer invalid!");
}
players[0].settings_controller = true;
consoleplayer = doomcom.consoleplayer;
if (consoleplayer == Net_Arbitrator)
{
v = Args->CheckValue("-netmode");
if (v != NULL)
{
NetMode = atoi(v) != 0 ? NET_PacketServer : NET_PeerToPeer;
}
if (doomcom.numnodes > 1)
{
Printf("Selected " TEXTCOLOR_BLUE "%s" TEXTCOLOR_NORMAL " networking mode. (%s)\n", NetMode == NET_PeerToPeer ? "peer to peer" : "packet server",
v != NULL ? "forced" : "auto");
}
if (Args->CheckParm("-extratic"))
{
net_extratic = 1;
}
}
// [RH] Setup user info
D_SetupUserInfo ();
if (Args->CheckParm ("-debugfile"))
{
char filename[20];
mysnprintf (filename, countof(filename), "debug%i.txt", consoleplayer);
Printf ("debug output to: %s\n", filename);
debugfile = fopen (filename, "w");
}
if (netgame)
{
GameConfig->ReadNetVars (); // [RH] Read network ServerInfo cvars
if (!D_ArbitrateNetStart ()) return false;
}
// read values out of doomcom
ticdup = doomcom.ticdup;
for (i = 0; i < doomcom.numplayers; i++)
playeringame[i] = true;
for (i = 0; i < doomcom.numnodes; i++)
nodeingame[i] = true;
if (consoleplayer != Net_Arbitrator && doomcom.numnodes > 1)
{
Printf("Arbitrator selected " TEXTCOLOR_BLUE "%s" TEXTCOLOR_NORMAL " networking mode.\n", NetMode == NET_PeerToPeer ? "peer to peer" : "packet server");
}
if (!batchrun) Printf ("player %i of %i (%i nodes)\n",
consoleplayer+1, doomcom.numplayers, doomcom.numnodes);
return true;
}
//
// D_QuitNetGame
// Called before quitting to leave a net game
// without hanging the other players
//
void D_QuitNetGame (void)
{
int i, j, k;
if (!netgame || !usergame || consoleplayer == -1 || demoplayback)
return;
// send a bunch of packets for security
netbuffer[0] = NCMD_EXIT;
netbuffer[1] = 0;
k = 2;
if (NetMode == NET_PacketServer && consoleplayer == Net_Arbitrator)
{
uint8_t *foo = &netbuffer[2];
// Let the new arbitrator know what resendto counts to use
for (i = 0; i < MAXPLAYERS; ++i)
{
if (playeringame[i] && i != consoleplayer)
WriteLong (resendto[nodeforplayer[i]], &foo);
}
k = int(foo - netbuffer);
}
for (i = 0; i < 4; i++)
{
if (NetMode == NET_PacketServer && consoleplayer != Net_Arbitrator)
{
HSendPacket (nodeforplayer[Net_Arbitrator], 2);
}
else
{
for (j = 1; j < doomcom.numnodes; j++)
if (nodeingame[j])
HSendPacket (j, k);
}
I_WaitVBL (1);
}
if (debugfile)
fclose (debugfile);
}
// Forces playsim processing time to be consistent across frames.
// This improves interpolation for frames in between tics.
//
// With this cvar off the mods with a high playsim processing time will appear
// less smooth as the measured time used for interpolation will vary.
CVAR(Bool, r_ticstability, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
static uint64_t stabilityticduration = 0;
static uint64_t stabilitystarttime = 0;
static void TicStabilityWait()
{
using namespace std::chrono;
using namespace std::this_thread;
if (!r_ticstability)
return;
uint64_t start = duration_cast<microseconds>(steady_clock::now().time_since_epoch()).count();
while (true)
{
uint64_t cur = duration_cast<microseconds>(steady_clock::now().time_since_epoch()).count();
if (cur - start > stabilityticduration)
break;
}
}
static void TicStabilityBegin()
{
using namespace std::chrono;
stabilitystarttime = duration_cast<microseconds>(steady_clock::now().time_since_epoch()).count();
}
static void TicStabilityEnd()
{
using namespace std::chrono;
uint64_t stabilityendtime = duration_cast<microseconds>(steady_clock::now().time_since_epoch()).count();
stabilityticduration = std::min(stabilityendtime - stabilitystarttime, (uint64_t)1'000'000);
}
//
// TryRunTics
//
void TryRunTics (void)
{
int i;
int lowtic;
int realtics;
int availabletics;
int counts;
int numplaying;
// If paused, do not eat more CPU time than we need, because it
// will all be wasted anyway.
if (pauseext)
r_NoInterpolate = true;
bool doWait = cl_capfps || r_NoInterpolate /*|| netgame*/;
// get real tics
if (doWait)
{
entertic = I_WaitForTic (oldentertics);
}
else
{
entertic = I_GetTime ();
}
realtics = entertic - oldentertics;
oldentertics = entertic;
// get available tics
NetUpdate ();
if (pauseext)
return;
lowtic = INT_MAX;
numplaying = 0;
for (i = 0; i < doomcom.numnodes; i++)
{
if (nodeingame[i])
{
numplaying++;
if (nettics[i] < lowtic)
lowtic = nettics[i];
}
}
if (ticdup == 1)
{
availabletics = lowtic - gametic;
}
else
{
availabletics = lowtic - gametic / ticdup;
}
// decide how many tics to run
if (realtics < availabletics-1)
counts = realtics+1;
else if (realtics < availabletics)
counts = realtics;
else
counts = availabletics;
// Uncapped framerate needs seprate checks
if (counts == 0 && !doWait)
{
TicStabilityWait();
// Check possible stall conditions
Net_CheckLastReceived(counts);
if (realtics >= 1)
{
C_Ticker();
M_Ticker();
// Repredict the player for new buffered movement
P_UnPredictPlayer();
P_PredictPlayer(&players[consoleplayer]);
}
return;
}
if (counts < 1)
counts = 1;
if (debugfile)
fprintf (debugfile,
"=======real: %i avail: %i game: %i\n",
realtics, availabletics, counts);
// wait for new tics if needed
while (lowtic < gametic + counts)
{
NetUpdate ();
lowtic = INT_MAX;
for (i = 0; i < doomcom.numnodes; i++)
if (nodeingame[i] && nettics[i] < lowtic)
lowtic = nettics[i];
lowtic = lowtic * ticdup;
if (lowtic < gametic)
I_Error ("TryRunTics: lowtic < gametic");
// Check possible stall conditions
Net_CheckLastReceived (counts);
// Update time returned by I_GetTime, but only if we are stuck in this loop
if (lowtic < gametic + counts)
I_SetFrameTime();
// don't stay in here forever -- give the menu a chance to work
if (I_GetTime () - entertic >= 1)
{
C_Ticker ();
M_Ticker ();
// Repredict the player for new buffered movement
P_UnPredictPlayer();
P_PredictPlayer(&players[consoleplayer]);
return;
}
}
//Tic lowtic is high enough to process this gametic. Clear all possible waiting info
hadlate = false;
for (i = 0; i < MAXPLAYERS; i++)
players[i].waiting = false;
lastglobalrecvtime = I_GetTime (); //Update the last time the game tic'd over
// run the count tics
if (counts > 0)
{
P_UnPredictPlayer();
while (counts--)
{
TicStabilityBegin();
if (gametic > lowtic)
{
I_Error ("gametic>lowtic");
}
if (advancedemo)
{
D_DoAdvanceDemo ();
}
if (debugfile) fprintf (debugfile, "run tic %d\n", gametic);
C_Ticker ();
M_Ticker ();
G_Ticker();
gametic++;
NetUpdate (); // check for new console commands
TicStabilityEnd();
}
P_PredictPlayer(&players[consoleplayer]);
S_UpdateSounds (players[consoleplayer].camera); // move positional sounds
}
else
{
TicStabilityWait();
}
}
void Net_CheckLastReceived (int counts)
{
// [Ed850] Check to see the last time a packet was received.
// If it's longer then 3 seconds, a node has likely stalled.
if (I_GetTime() - lastglobalrecvtime >= TICRATE * 3)
{
lastglobalrecvtime = I_GetTime(); //Bump the count
if (NetMode == NET_PeerToPeer || consoleplayer == Net_Arbitrator)
{
//Keep the local node in the for loop so we can still log any cases where the local node is /somehow/ late.
//However, we don't send a resend request for sanity reasons.
for (int i = 0; i < doomcom.numnodes; i++)
{
if (nodeingame[i] && nettics[i] <= gametic + counts)
{
if (debugfile && !players[playerfornode[i]].waiting)
fprintf(debugfile, "%i is slow (%i to %i)\n",
i, nettics[i], gametic + counts);
//Send resend request to the late node. Also mark the node as waiting to display it in the hud.
if (i != 0)
remoteresend[i] = players[playerfornode[i]].waiting = hadlate = true;
}
else
players[playerfornode[i]].waiting = false;
}
}
else
{ //Send a resend request to the Arbitrator, as it's obvious we are stuck here.
if (debugfile && !players[Net_Arbitrator].waiting)
fprintf(debugfile, "Arbitrator is slow (%i to %i)\n",
nettics[nodeforplayer[Net_Arbitrator]], gametic + counts);
//Send resend request to the Arbitrator. Also mark the Arbitrator as waiting to display it in the hud.
remoteresend[nodeforplayer[Net_Arbitrator]] = players[Net_Arbitrator].waiting = hadlate = true;
}
}
}
void Net_NewMakeTic (void)
{
specials.NewMakeTic ();
}
void Net_WriteByte (uint8_t it)
{
specials << it;
}
void Net_WriteWord (short it)
{
specials << it;
}
void Net_WriteLong (int it)
{
specials << it;
}
void Net_WriteFloat (float it)
{
specials << it;
}
void Net_WriteString (const char *it)
{
specials << it;
}
void Net_WriteBytes (const uint8_t *block, int len)
{
while (len--)
specials << *block++;
}
//==========================================================================
//
// Dynamic buffer interface
//
//==========================================================================
FDynamicBuffer::FDynamicBuffer ()
{
m_Data = NULL;
m_Len = m_BufferLen = 0;
}
FDynamicBuffer::~FDynamicBuffer ()
{
if (m_Data)
{
M_Free (m_Data);
m_Data = NULL;
}
m_Len = m_BufferLen = 0;
}
void FDynamicBuffer::SetData (const uint8_t *data, int len)
{
if (len > m_BufferLen)
{
m_BufferLen = (len + 255) & ~255;
m_Data = (uint8_t *)M_Realloc (m_Data, m_BufferLen);
}
if (data != NULL)
{
m_Len = len;
memcpy (m_Data, data, len);
}
else
{
m_Len = 0;
}
}
uint8_t *FDynamicBuffer::GetData (int *len)
{
if (len)
*len = m_Len;
return m_Len ? m_Data : NULL;
}
static int RemoveClass(FLevelLocals *Level, const PClass *cls)
{
AActor *actor;
int removecount = 0;
bool player = false;
auto iterator = Level->GetThinkerIterator<AActor>(cls->TypeName);
while ((actor = iterator.Next()))
{
if (actor->IsA(cls))
{
// [MC]Do not remove LIVE players.
if (actor->player != NULL)
{
player = true;
continue;
}
// [SP] Don't remove owned inventory objects.
if (!actor->IsMapActor())
{
continue;
}
removecount++;
actor->ClearCounters();
actor->Destroy();
}
}
if (player)
Printf("Cannot remove live players!\n");
return removecount;
}
// [RH] Execute a special "ticcmd". The type byte should
// have already been read, and the stream is positioned
// at the beginning of the command's actual data.
void Net_DoCommand (int type, uint8_t **stream, int player)
{
uint8_t pos = 0;
char *s = NULL;
int i;
switch (type)
{
case DEM_SAY:
{
const char *name = players[player].userinfo.GetName();
uint8_t who = ReadByte (stream);
s = ReadString (stream);
CleanseString (s);
if (((who & 1) == 0) || players[player].userinfo.GetTeam() == TEAM_NONE)
{ // Said to everyone
if (who & 2)
{
Printf (PRINT_CHAT, TEXTCOLOR_BOLD "* %s" TEXTCOLOR_BOLD "%s" TEXTCOLOR_BOLD "\n", name, s);
}
else
{
Printf (PRINT_CHAT, "%s" TEXTCOLOR_CHAT ": %s" TEXTCOLOR_CHAT "\n", name, s);
}
S_Sound (CHAN_VOICE, CHANF_UI, gameinfo.chatSound, 1, ATTN_NONE);
}
else if (players[player].userinfo.GetTeam() == players[consoleplayer].userinfo.GetTeam())
{ // Said only to members of the player's team
if (who & 2)
{
Printf (PRINT_TEAMCHAT, TEXTCOLOR_BOLD "* (%s" TEXTCOLOR_BOLD ")%s" TEXTCOLOR_BOLD "\n", name, s);
}
else
{
Printf (PRINT_TEAMCHAT, "(%s" TEXTCOLOR_TEAMCHAT "): %s" TEXTCOLOR_TEAMCHAT "\n", name, s);
}
S_Sound (CHAN_VOICE, CHANF_UI, gameinfo.chatSound, 1, ATTN_NONE);
}
}
break;
case DEM_MUSICCHANGE:
s = ReadString (stream);
S_ChangeMusic (s);
break;
case DEM_PRINT:
s = ReadString (stream);
Printf ("%s", s);
break;
case DEM_CENTERPRINT:
s = ReadString (stream);
C_MidPrint (nullptr, s);
break;
case DEM_UINFCHANGED:
D_ReadUserInfoStrings (player, stream, true);
break;
case DEM_SINFCHANGED:
D_DoServerInfoChange (stream, false);
break;
case DEM_SINFCHANGEDXOR:
D_DoServerInfoChange (stream, true);
break;
case DEM_GIVECHEAT:
s = ReadString (stream);
cht_Give (&players[player], s, ReadLong (stream));
if (player != consoleplayer)
{
FString message = GStrings("TXT_X_CHEATS");
message.Substitute("%s", players[player].userinfo.GetName());
Printf("%s: give %s\n", message.GetChars(), s);
}
break;
case DEM_TAKECHEAT:
s = ReadString (stream);
cht_Take (&players[player], s, ReadLong (stream));
break;
case DEM_SETINV:
s = ReadString(stream);
i = ReadLong(stream);
cht_SetInv(&players[player], s, i, !!ReadByte(stream));
break;
case DEM_WARPCHEAT:
{
int x, y, z;
x = ReadWord (stream);
y = ReadWord (stream);
z = ReadWord (stream);
P_TeleportMove (players[player].mo, DVector3(x, y, z), true);
}
break;
case DEM_GENERICCHEAT:
cht_DoCheat (&players[player], ReadByte (stream));
break;
case DEM_CHANGEMAP2:
pos = ReadByte (stream);
/* intentional fall-through */
case DEM_CHANGEMAP:
// Change to another map without disconnecting other players
s = ReadString (stream);
// Using LEVEL_NOINTERMISSION tends to throw the game out of sync.
// That was a long time ago. Maybe it works now?
primaryLevel->flags |= LEVEL_CHANGEMAPCHEAT;
primaryLevel->ChangeLevel(s, pos, 0);
break;
case DEM_SUICIDE:
cht_Suicide (&players[player]);
break;
case DEM_ADDBOT:
primaryLevel->BotInfo.TryAddBot (primaryLevel, stream, player);
break;
case DEM_KILLBOTS:
primaryLevel->BotInfo.RemoveAllBots (primaryLevel, true);
Printf ("Removed all bots\n");
break;
case DEM_CENTERVIEW:
players[player].centering = true;
break;
case DEM_INVUSEALL:
if (gamestate == GS_LEVEL && !paused)
{
AActor *item = players[player].mo->Inventory;
auto pitype = PClass::FindActor(NAME_PuzzleItem);
while (item != nullptr)
{
AActor *next = item->Inventory;
IFVIRTUALPTRNAME(item, NAME_Inventory, UseAll)
{
VMValue param[] = { item, players[player].mo };
VMCall(func, param, 2, nullptr, 0);
}
item = next;
}
}
break;
case DEM_INVUSE:
case DEM_INVDROP:
{
uint32_t which = ReadLong (stream);
int amt = -1;
if (type == DEM_INVDROP) amt = ReadLong(stream);
if (gamestate == GS_LEVEL && !paused
&& players[player].playerstate != PST_DEAD)
{
auto item = players[player].mo->Inventory;
while (item != NULL && item->InventoryID != which)
{
item = item->Inventory;
}
if (item != NULL)
{
if (type == DEM_INVUSE)
{
players[player].mo->UseInventory (item);
}
else
{
players[player].mo->DropInventory (item, amt);
}
}
}
}
break;
case DEM_SUMMON:
case DEM_SUMMONFRIEND:
case DEM_SUMMONFOE:
case DEM_SUMMONMBF:
case DEM_SUMMON2:
case DEM_SUMMONFRIEND2:
case DEM_SUMMONFOE2:
{
PClassActor *typeinfo;
int angle = 0;
int16_t tid = 0;
uint8_t special = 0;
int args[5];
s = ReadString (stream);
if (type >= DEM_SUMMON2 && type <= DEM_SUMMONFOE2)
{
angle = ReadWord(stream);
tid = ReadWord(stream);
special = ReadByte(stream);
for(i = 0; i < 5; i++) args[i] = ReadLong(stream);
}
typeinfo = PClass::FindActor(s);
if (typeinfo != NULL)
{
AActor *source = players[player].mo;
if (source != NULL)
{
if (GetDefaultByType (typeinfo)->flags & MF_MISSILE)
{
P_SpawnPlayerMissile (source, 0, 0, 0, typeinfo, source->Angles.Yaw);
}
else
{
const AActor *def = GetDefaultByType (typeinfo);
DVector3 spawnpos = source->Vec3Angle(def->radius * 2 + source->radius, source->Angles.Yaw, 8.);
AActor *spawned = Spawn (primaryLevel, typeinfo, spawnpos, ALLOW_REPLACE);
if (spawned != NULL)
{
if (type == DEM_SUMMONFRIEND || type == DEM_SUMMONFRIEND2 || type == DEM_SUMMONMBF)
{
if (spawned->CountsAsKill())
{
primaryLevel->total_monsters--;
}
spawned->FriendPlayer = player + 1;
spawned->flags |= MF_FRIENDLY;
spawned->LastHeard = players[player].mo;
spawned->health = spawned->SpawnHealth();
if (type == DEM_SUMMONMBF)
spawned->flags3 |= MF3_NOBLOCKMONST;
}
else if (type == DEM_SUMMONFOE || type == DEM_SUMMONFOE2)
{
spawned->FriendPlayer = 0;
spawned->flags &= ~MF_FRIENDLY;
spawned->health = spawned->SpawnHealth();
}
if (type >= DEM_SUMMON2 && type <= DEM_SUMMONFOE2)
{
spawned->Angles.Yaw = source->Angles.Yaw - angle;
spawned->special = special;
for(i = 0; i < 5; i++) {
spawned->args[i] = args[i];
}
if(tid) spawned->SetTID(tid);
}
}
}
}
}
}
break;
case DEM_SPRAY:
s = ReadString(stream);
SprayDecal(players[player].mo, s);
break;
case DEM_MDK:
s = ReadString(stream);
cht_DoMDK(&players[player], s);
break;
case DEM_PAUSE:
if (gamestate == GS_LEVEL)
{
if (paused)
{
paused = 0;
S_ResumeSound (false);
}
else
{
paused = player + 1;
S_PauseSound (false, false);
}
}
break;
case DEM_SAVEGAME:
if (gamestate == GS_LEVEL)
{
s = ReadString (stream);
savegamefile = s;
delete[] s;
s = ReadString (stream);
savedescription = s;
if (player != consoleplayer)
{
// Paths sent over the network will be valid for the system that sent
// the save command. For other systems, the path needs to be changed.
const char *fileonly = savegamefile.GetChars();
const char *slash = strrchr (fileonly, '\\');
if (slash != NULL)
{
fileonly = slash + 1;
}
slash = strrchr (fileonly, '/');
if (slash != NULL)
{
fileonly = slash + 1;
}
if (fileonly != savegamefile.GetChars())
{
savegamefile = G_BuildSaveName (fileonly, -1);
}
}
}
gameaction = ga_savegame;
break;
case DEM_CHECKAUTOSAVE:
// Do not autosave in multiplayer games or when dead.
// For demo playback, DEM_DOAUTOSAVE already exists in the demo if the
// autosave happened. And if it doesn't, we must not generate it.
if (multiplayer ||
demoplayback ||
players[consoleplayer].playerstate != PST_LIVE ||
disableautosave >= 2 ||
autosavecount == 0)
{
break;
}
Net_WriteByte (DEM_DOAUTOSAVE);
break;
case DEM_DOAUTOSAVE:
gameaction = ga_autosave;
break;
case DEM_FOV:
{
float newfov = ReadFloat (stream);
if (newfov != players[consoleplayer].DesiredFOV)
{
Printf ("FOV%s set to %g\n",
consoleplayer == Net_Arbitrator ? " for everyone" : "",
newfov);
}
for (i = 0; i < MAXPLAYERS; ++i)
{
if (playeringame[i])
{
players[i].DesiredFOV = newfov;
}
}
}
break;
case DEM_MYFOV:
players[player].DesiredFOV = ReadFloat (stream);
break;
case DEM_RUNSCRIPT:
case DEM_RUNSCRIPT2:
{
int snum = ReadWord (stream);
int argn = ReadByte (stream);
RunScript(stream, players[player].mo, snum, argn, (type == DEM_RUNSCRIPT2) ? ACS_ALWAYS : 0);
}
break;
case DEM_RUNNAMEDSCRIPT:
{
s = ReadString(stream);
int argn = ReadByte(stream);
RunScript(stream, players[player].mo, -FName(s).GetIndex(), argn & 127, (argn & 128) ? ACS_ALWAYS : 0);
}
break;
case DEM_RUNSPECIAL:
{
int snum = ReadWord(stream);
int argn = ReadByte(stream);
int arg[5] = { 0, 0, 0, 0, 0 };
for (i = 0; i < argn; ++i)
{
int argval = ReadLong(stream);
if ((unsigned)i < countof(arg))
{
arg[i] = argval;
}
}
if (!CheckCheatmode(player == consoleplayer))
{
P_ExecuteSpecial(primaryLevel, snum, NULL, players[player].mo, false, arg[0], arg[1], arg[2], arg[3], arg[4]);
}
}
break;
case DEM_CROUCH:
if (gamestate == GS_LEVEL && players[player].mo != NULL &&
players[player].health > 0 && !(players[player].oldbuttons & BT_JUMP) &&
!P_IsPlayerTotallyFrozen(&players[player]))
{
players[player].crouching = players[player].crouchdir < 0 ? 1 : -1;
}
break;
case DEM_MORPHEX:
{
s = ReadString (stream);
FString msg = cht_Morph (players + player, PClass::FindActor (s), false);
if (player == consoleplayer)
{
Printf ("%s\n", msg[0] != '\0' ? msg.GetChars() : "Morph failed.");
}
}
break;
case DEM_ADDCONTROLLER:
{
uint8_t playernum = ReadByte (stream);
players[playernum].settings_controller = true;
if (consoleplayer == playernum || consoleplayer == Net_Arbitrator)
Printf ("%s has been added to the controller list.\n", players[playernum].userinfo.GetName());
}
break;
case DEM_DELCONTROLLER:
{
uint8_t playernum = ReadByte (stream);
players[playernum].settings_controller = false;
if (consoleplayer == playernum || consoleplayer == Net_Arbitrator)
Printf ("%s has been removed from the controller list.\n", players[playernum].userinfo.GetName());
}
break;
case DEM_KILLCLASSCHEAT:
{
s = ReadString (stream);
int killcount = 0;
PClassActor *cls = PClass::FindActor(s);
if (cls != NULL)
{
killcount = primaryLevel->Massacre(false, cls->TypeName);
PClassActor *cls_rep = cls->GetReplacement(primaryLevel);
if (cls != cls_rep)
{
killcount += primaryLevel->Massacre(false, cls_rep->TypeName);
}
Printf ("Killed %d monsters of type %s.\n",killcount, s);
}
else
{
Printf ("%s is not an actor class.\n", s);
}
}
break;
case DEM_REMOVE:
{
s = ReadString(stream);
int removecount = 0;
PClassActor *cls = PClass::FindActor(s);
if (cls != NULL && cls->IsDescendantOf(RUNTIME_CLASS(AActor)))
{
removecount = RemoveClass(primaryLevel, cls);
const PClass *cls_rep = cls->GetReplacement(primaryLevel);
if (cls != cls_rep)
{
removecount += RemoveClass(primaryLevel, cls_rep);
}
Printf("Removed %d actors of type %s.\n", removecount, s);
}
else
{
Printf("%s is not an actor class.\n", s);
}
}
break;
case DEM_CONVREPLY:
case DEM_CONVCLOSE:
case DEM_CONVNULL:
P_ConversationCommand (type, player, stream);
break;
case DEM_SETSLOT:
case DEM_SETSLOTPNUM:
{
int pnum;
if (type == DEM_SETSLOTPNUM)
{
pnum = ReadByte(stream);
}
else
{
pnum = player;
}
unsigned int slot = ReadByte(stream);
int count = ReadByte(stream);
if (slot < NUM_WEAPON_SLOTS)
{
players[pnum].weapons.ClearSlot(slot);
}
for(i = 0; i < count; ++i)
{
PClassActor *wpn = Net_ReadWeapon(stream);
players[pnum].weapons.AddSlot(slot, wpn, pnum == consoleplayer);
}
}
break;
case DEM_ADDSLOT:
{
int slot = ReadByte(stream);
PClassActor *wpn = Net_ReadWeapon(stream);
players[player].weapons.AddSlot(slot, wpn, player == consoleplayer);
}
break;
case DEM_ADDSLOTDEFAULT:
{
int slot = ReadByte(stream);
PClassActor *wpn = Net_ReadWeapon(stream);
players[player].weapons.AddSlotDefault(slot, wpn, player == consoleplayer);
}
break;
case DEM_SETPITCHLIMIT:
players[player].MinPitch = -(double)ReadByte(stream); // up
players[player].MaxPitch = (double)ReadByte(stream); // down
break;
case DEM_ADVANCEINTER:
F_AdvanceIntermission();
break;
case DEM_REVERTCAMERA:
players[player].camera = players[player].mo;
break;
case DEM_FINISHGAME:
// Simulate an end-of-game action
primaryLevel->ChangeLevel(NULL, 0, 0);
break;
case DEM_NETEVENT:
{
s = ReadString(stream);
int argn = ReadByte(stream);
int arg[3] = { 0, 0, 0 };
for (int i = 0; i < 3; i++)
arg[i] = ReadLong(stream);
bool manual = !!ReadByte(stream);
primaryLevel->localEventManager->Console(player, s, arg[0], arg[1], arg[2], manual);
}
break;
default:
I_Error ("Unknown net command: %d", type);
break;
}
if (s)
delete[] s;
}
// Used by DEM_RUNSCRIPT, DEM_RUNSCRIPT2, and DEM_RUNNAMEDSCRIPT
static void RunScript(uint8_t **stream, AActor *pawn, int snum, int argn, int always)
{
if (pawn == nullptr)
{
// Scripts can be invoked without a level loaded, e.g. via puke(name) CCMD in fullscreen console
return;
}
int arg[4] = { 0, 0, 0, 0 };
int i;
for (i = 0; i < argn; ++i)
{
int argval = ReadLong(stream);
if ((unsigned)i < countof(arg))
{
arg[i] = argval;
}
}
P_StartScript(pawn->Level, pawn, NULL, snum, primaryLevel->MapName, arg, MIN<int>(countof(arg), argn), ACS_NET | always);
}
void Net_SkipCommand (int type, uint8_t **stream)
{
uint8_t t;
size_t skip;
switch (type)
{
case DEM_SAY:
skip = strlen ((char *)(*stream + 1)) + 2;
break;
case DEM_ADDBOT:
skip = strlen ((char *)(*stream + 1)) + 6;
break;
case DEM_GIVECHEAT:
case DEM_TAKECHEAT:
skip = strlen ((char *)(*stream)) + 5;
break;
case DEM_SETINV:
skip = strlen((char *)(*stream)) + 6;
break;
case DEM_NETEVENT:
skip = strlen((char *)(*stream)) + 15;
break;
case DEM_SUMMON2:
case DEM_SUMMONFRIEND2:
case DEM_SUMMONFOE2:
skip = strlen ((char *)(*stream)) + 26;
break;
case DEM_CHANGEMAP2:
skip = strlen((char *)(*stream + 1)) + 2;
break;
case DEM_MUSICCHANGE:
case DEM_PRINT:
case DEM_CENTERPRINT:
case DEM_UINFCHANGED:
case DEM_CHANGEMAP:
case DEM_SUMMON:
case DEM_SUMMONFRIEND:
case DEM_SUMMONFOE:
case DEM_SUMMONMBF:
case DEM_REMOVE:
case DEM_SPRAY:
case DEM_MORPHEX:
case DEM_KILLCLASSCHEAT:
case DEM_MDK:
skip = strlen ((char *)(*stream)) + 1;
break;
case DEM_WARPCHEAT:
skip = 6;
break;
case DEM_INVUSE:
case DEM_FOV:
case DEM_MYFOV:
skip = 4;
break;
case DEM_INVDROP:
skip = 8;
break;
case DEM_GENERICCHEAT:
case DEM_DROPPLAYER:
case DEM_ADDCONTROLLER:
case DEM_DELCONTROLLER:
skip = 1;
break;
case DEM_SAVEGAME:
skip = strlen ((char *)(*stream)) + 1;
skip += strlen ((char *)(*stream) + skip) + 1;
break;
case DEM_SINFCHANGEDXOR:
case DEM_SINFCHANGED:
t = **stream;
skip = 1 + (t & 63);
if (type == DEM_SINFCHANGED)
{
switch (t >> 6)
{
case CVAR_Bool:
skip += 1;
break;
case CVAR_Int: case CVAR_Float:
skip += 4;
break;
case CVAR_String:
skip += strlen ((char *)(*stream + skip)) + 1;
break;
}
}
else
{
skip += 1;
}
break;
case DEM_RUNSCRIPT:
case DEM_RUNSCRIPT2:
skip = 3 + *(*stream + 2) * 4;
break;
case DEM_RUNNAMEDSCRIPT:
skip = strlen((char *)(*stream)) + 2;
skip += ((*(*stream + skip - 1)) & 127) * 4;
break;
case DEM_RUNSPECIAL:
skip = 3 + *(*stream + 2) * 4;
break;
case DEM_CONVREPLY:
skip = 3;
break;
case DEM_SETSLOT:
case DEM_SETSLOTPNUM:
{
skip = 2 + (type == DEM_SETSLOTPNUM);
for(int numweapons = (*stream)[skip-1]; numweapons > 0; numweapons--)
{
skip += 1 + ((*stream)[skip] >> 7);
}
}
break;
case DEM_ADDSLOT:
case DEM_ADDSLOTDEFAULT:
skip = 2 + ((*stream)[1] >> 7);
break;
case DEM_SETPITCHLIMIT:
skip = 2;
break;
default:
return;
}
*stream += skip;
}
// This was taken out of shared_hud, because UI code shouldn't do low level calculations that may change if the backing implementation changes.
int Net_GetLatency(int *ld, int *ad)
{
int i, localdelay = 0, arbitratordelay = 0;
for (i = 0; i < BACKUPTICS; i++) localdelay += netdelay[0][i];
for (i = 0; i < BACKUPTICS; i++) arbitratordelay += netdelay[nodeforplayer[Net_Arbitrator]][i];
arbitratordelay = ((arbitratordelay / BACKUPTICS) * ticdup) * (1000 / TICRATE);
localdelay = ((localdelay / BACKUPTICS) * ticdup) * (1000 / TICRATE);
int severity = 0;
if (MAX(localdelay, arbitratordelay) > 200)
{
severity = 1;
}
if (MAX(localdelay, arbitratordelay) > 400)
{
severity = 2;
}
if (MAX(localdelay, arbitratordelay) >= ((BACKUPTICS / 2 - 1) * ticdup) * (1000 / TICRATE))
{
severity = 3;
}
*ld = localdelay;
*ad = arbitratordelay;
return severity;
}
// [RH] List "ping" times
CCMD (pings)
{
int i;
for (i = 0; i < MAXPLAYERS; i++)
if (playeringame[i])
Printf ("% 4" PRId64 " %s\n", currrecvtime[i] - lastrecvtime[i],
players[i].userinfo.GetName());
}
//==========================================================================
//
// Network_Controller
//
// Implement players who have the ability to change settings in a network
// game.
//
//==========================================================================
static void Network_Controller (int playernum, bool add)
{
if (consoleplayer != Net_Arbitrator)
{
Printf ("This command is only accessible to the net arbitrator.\n");
return;
}
if (players[playernum].settings_controller && add)
{
Printf ("%s is already on the setting controller list.\n", players[playernum].userinfo.GetName());
return;
}
if (!players[playernum].settings_controller && !add)
{
Printf ("%s is not on the setting controller list.\n", players[playernum].userinfo.GetName());
return;
}
if (!playeringame[playernum])
{
Printf ("Player (%d) not found!\n", playernum);
return;
}
if (players[playernum].Bot != NULL)
{
Printf ("Bots cannot be added to the controller list.\n");
return;
}
if (playernum == Net_Arbitrator)
{
Printf ("The net arbitrator cannot have their status changed on this list.\n");
return;
}
if (add)
Net_WriteByte (DEM_ADDCONTROLLER);
else
Net_WriteByte (DEM_DELCONTROLLER);
Net_WriteByte (playernum);
}
//==========================================================================
//
// CCMD net_addcontroller
//
//==========================================================================
CCMD (net_addcontroller)
{
if (!netgame)
{
Printf ("This command can only be used when playing a net game.\n");
return;
}
if (argv.argc () < 2)
{
Printf ("Usage: net_addcontroller <player>\n");
return;
}
Network_Controller (atoi (argv[1]), true);
}
//==========================================================================
//
// CCMD net_removecontroller
//
//==========================================================================
CCMD (net_removecontroller)
{
if (!netgame)
{
Printf ("This command can only be used when playing a net game.\n");
return;
}
if (argv.argc () < 2)
{
Printf ("Usage: net_removecontroller <player>\n");
return;
}
Network_Controller (atoi (argv[1]), false);
}
//==========================================================================
//
// CCMD net_listcontrollers
//
//==========================================================================
CCMD (net_listcontrollers)
{
if (!netgame)
{
Printf ("This command can only be used when playing a net game.\n");
return;
}
Printf ("The following players can change the game settings:\n");
for (int i = 0; i < MAXPLAYERS; i++)
{
if (!playeringame[i])
continue;
if (players[i].settings_controller)
{
Printf ("- %s\n", players[i].userinfo.GetName());
}
}
}
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