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raze-gles/polymer/eduke32/source/net.c
helixhorned fc048658dc Experimental NETCODE Makefile variable, enabled by default. 
Disabling netcode compilation can be interesting on memory-constrained
systems, or those that have no means of accessing the network anyway.
Note: I'm OK with maintaining this myself, i.e. it's fine if netcode dev
breaks compilation with NETCODE=0.

git-svn-id: https://svn.eduke32.com/eduke32@3260 1a8010ca-5511-0410-912e-c29ae57300e0
2012-12-09 13:24:44 +00:00

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//-------------------------------------------------------------------------
/*
Copyright (C) 2010 EDuke32 developers and contributors
This file is part of EDuke32.
EDuke32 is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License version 2
as published by the Free Software Foundation.
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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
//-------------------------------------------------------------------------
#include "duke3d.h"
#include "game.h"
#include "gamedef.h"
#include "net.h"
#include "premap.h"
#include "savegame.h"
#include "input.h"
#include "enet/enet.h"
#include "quicklz.h"
#include "crc32.h"
/*
this should be lower than the MTU size by at least the size of the UDP and ENet headers
or else fragmentation will occur
*/
#define SYNCPACKETSIZE 1344
newgame_t pendingnewgame;
uint32_t g_netMapRevision = 0;
ENetHost *g_netServer = NULL;
ENetHost *g_netClient = NULL;
ENetPeer *g_netClientPeer = NULL;
enet_uint16 g_netPort = 23513;
int32_t g_netDisconnect = 0;
char g_netPassword[32];
int32_t g_netPlayersWaiting = 0;
int32_t g_networkMode = NET_CLIENT;
#ifdef NETCODE_DISABLE
void faketimerhandler(void) {}
#else
static char recbuf[180];
static int32_t g_chatPlayer = -1;
// sprites of these statnums are synced to clients by the server
int16_t g_netStatnums[10] = { STAT_PROJECTILE, STAT_PLAYER, STAT_STANDABLE, STAT_ACTIVATOR, STAT_TRANSPORT,
STAT_EFFECTOR, STAT_ACTOR, STAT_ZOMBIEACTOR, STAT_MISC, MAXSTATUS
};
#pragma pack(push,1)
netmapstate_t *g_multiMapState[MAXPLAYERS];
netmapstate_t *g_pendingMapState[MAXPLAYERS];
netmapstate_t *g_multiMapRevisions[NET_REVISIONS];
netmapstate_t *streamoutput = NULL;
char tempnetbuf[sizeof(netmapstate_t) + 400];
#pragma pack(pop)
static void alloc_multimapstate(int32_t i)
{
if (g_multiMapState[i] == NULL)
{
g_multiMapState[i] = (netmapstate_t *)Bcalloc(1, sizeof(netmapstate_t));
if (g_multiMapState[i] == NULL)
G_GameExit("OUT OF MEMORY in alloc_multimapstate");
}
if (g_pendingMapState[i] == NULL)
{
g_pendingMapState[i] = (netmapstate_t *)Bcalloc(1, sizeof(netmapstate_t));
if (g_pendingMapState[i] == NULL)
G_GameExit("OUT OF MEMORY in alloc_multimapstate");
}
}
void Net_SaveMapState(netmapstate_t *save)
{
if (save != NULL)
{
int32_t i;
intptr_t j;
save->revision = g_netMapRevision;
Bmemcpy(&save->numwalls,&numwalls,sizeof(numwalls));
Bmemcpy(&save->wall[0],&wall[0],sizeof(walltype)*MAXWALLS);
Bmemcpy(&save->numsectors,&numsectors,sizeof(numsectors));
Bmemcpy(&save->sector[0],&sector[0],sizeof(sectortype)*MAXSECTORS);
Bmemcpy(&save->sprite[0],&sprite[0],sizeof(spritetype)*MAXSPRITES);
Bmemcpy(&save->spriteext[0],&spriteext[0],sizeof(spriteext_t)*MAXSPRITES);
Bmemcpy(&save->headspritesect[0],&headspritesect[0],sizeof(headspritesect));
Bmemcpy(&save->prevspritesect[0],&prevspritesect[0],sizeof(prevspritesect));
Bmemcpy(&save->nextspritesect[0],&nextspritesect[0],sizeof(nextspritesect));
Bmemcpy(&save->headspritestat[0],&headspritestat[0],sizeof(headspritestat));
Bmemcpy(&save->prevspritestat[0],&prevspritestat[0],sizeof(prevspritestat));
Bmemcpy(&save->nextspritestat[0],&nextspritestat[0],sizeof(nextspritestat));
for (i=MAXSPRITES-1; i>=0; i--)
save->scriptptrs[i] = 0;
Bmemcpy(&save->actor[0],&actor[0],sizeof(netactor_t)*MAXSPRITES);
for (i=MAXSPRITES-1; i>=0; i--)
for (j=0; j<10; j++)
save->actor[i].t_data[j] = actor[i].t_data[j];
Bmemcpy(&save->g_numCyclers,&g_numCyclers,sizeof(g_numCyclers));
Bmemcpy(&save->cyclers[0][0],&cyclers[0][0],sizeof(cyclers));
Bmemcpy(&save->g_playerSpawnPoints[0],&g_playerSpawnPoints[0],sizeof(g_playerSpawnPoints));
Bmemcpy(&save->g_numAnimWalls,&g_numAnimWalls,sizeof(g_numAnimWalls));
Bmemcpy(&save->SpriteDeletionQueue[0],&SpriteDeletionQueue[0],sizeof(SpriteDeletionQueue));
Bmemcpy(&save->g_spriteDeleteQueuePos,&g_spriteDeleteQueuePos,sizeof(g_spriteDeleteQueuePos));
Bmemcpy(&save->animwall[0],&animwall[0],sizeof(animwall));
Bmemcpy(&save->msx[0],&msx[0],sizeof(msx));
Bmemcpy(&save->msy[0],&msy[0],sizeof(msy));
Bmemcpy(&save->g_mirrorWall[0],&g_mirrorWall[0],sizeof(g_mirrorWall));
Bmemcpy(&save->g_mirrorSector[0],&g_mirrorSector[0],sizeof(g_mirrorSector));
Bmemcpy(&save->g_mirrorCount,&g_mirrorCount,sizeof(g_mirrorCount));
/* Bmemcpy(&save->animategoal[0],&animategoal[0],sizeof(animategoal));
Bmemcpy(&save->animatevel[0],&animatevel[0],sizeof(animatevel));
Bmemcpy(&save->g_animateCount,&g_animateCount,sizeof(g_animateCount));
Bmemcpy(&save->animatesect[0],&animatesect[0],sizeof(animatesect));
G_Util_PtrToIdx(animateptr, g_animateCount, sector, P2I_FWD);
Bmemcpy(&save->animateptr[0],&animateptr[0],sizeof(animateptr));
G_Util_PtrToIdx(animateptr, g_animateCount, sector, P2I_BACK);
*/
Bmemcpy(&save->g_numPlayerSprites,&g_numPlayerSprites,sizeof(g_numPlayerSprites));
Bmemcpy(&save->g_earthquakeTime,&g_earthquakeTime,sizeof(g_earthquakeTime));
// Bmemcpy(&save->lockclock,&lockclock,sizeof(lockclock));
Bmemcpy(&save->randomseed,&randomseed,sizeof(randomseed));
Bmemcpy(&save->g_globalRandom,&g_globalRandom,sizeof(g_globalRandom));
/*
for (i=g_gameVarCount-1; i>=0; i--)
{
if (aGameVars[i].dwFlags & GAMEVAR_NORESET) continue;
if (aGameVars[i].dwFlags & GAMEVAR_PERPLAYER)
{
if (!save->vars[i])
save->vars[i] = Bcalloc(MAXPLAYERS,sizeof(intptr_t));
Bmemcpy(&save->vars[i][0],&aGameVars[i].val.plValues[0],sizeof(intptr_t) * MAXPLAYERS);
}
else if (aGameVars[i].dwFlags & GAMEVAR_PERACTOR)
{
if (!save->vars[i])
save->vars[i] = Bcalloc(MAXSPRITES,sizeof(intptr_t));
Bmemcpy(&save->vars[i][0],&aGameVars[i].val.plValues[0],sizeof(intptr_t) * MAXSPRITES);
}
else save->vars[i] = (intptr_t *)aGameVars[i].val.lValue;
}
*/
// ototalclock = totalclock;
save->crc = crc32once((uint8_t *)save, offsetof(netmapstate_t, crc));
}
}
extern void Gv_RefreshPointers(void);
void Net_RestoreMapState(netmapstate_t *save)
{
int32_t i;
// int32_t x; // used in commented code below
intptr_t j;
char phealth[MAXPLAYERS];
if (save == NULL)
{
return;
}
initprintf("restoring revision %d\n", save->revision);
Bassert(save->crc == crc32once((uint8_t *)save, offsetof(netmapstate_t, crc)));
for (i=0; i<playerswhenstarted; i++)
phealth[i] = sprite[g_player[i].ps->i].extra;
pub = NUMPAGES;
pus = NUMPAGES;
G_UpdateScreenArea();
Bmemcpy(&numwalls,&save->numwalls,sizeof(numwalls));
Bmemcpy(&wall[0],&save->wall[0],sizeof(walltype)*MAXWALLS);
Bmemcpy(&numsectors,&save->numsectors,sizeof(numsectors));
Bmemcpy(&sector[0],&save->sector[0],sizeof(sectortype)*MAXSECTORS);
Bmemcpy(&sprite[0],&save->sprite[0],sizeof(spritetype)*MAXSPRITES);
Bmemcpy(&spriteext[0],&save->spriteext[0],sizeof(spriteext_t)*MAXSPRITES);
Bmemcpy(&headspritesect[0],&save->headspritesect[0],sizeof(headspritesect));
Bmemcpy(&prevspritesect[0],&save->prevspritesect[0],sizeof(prevspritesect));
Bmemcpy(&nextspritesect[0],&save->nextspritesect[0],sizeof(nextspritesect));
Bmemcpy(&headspritestat[0],&save->headspritestat[0],sizeof(headspritestat));
Bmemcpy(&prevspritestat[0],&save->prevspritestat[0],sizeof(prevspritestat));
Bmemcpy(&nextspritestat[0],&save->nextspritestat[0],sizeof(nextspritestat));
Bmemcpy(&actor[0],&save->actor[0],sizeof(netactor_t)*MAXSPRITES);
for (i=MAXSPRITES-1; i>=0; i--)
for (j=0; j<10; j++)
actor[i].t_data[j] = save->actor[i].t_data[j];
Bmemcpy(&g_numCyclers,&save->g_numCyclers,sizeof(g_numCyclers));
Bmemcpy(&cyclers[0][0],&save->cyclers[0][0],sizeof(cyclers));
Bmemcpy(&g_playerSpawnPoints[0],&save->g_playerSpawnPoints[0],sizeof(g_playerSpawnPoints));
Bmemcpy(&g_numAnimWalls,&save->g_numAnimWalls,sizeof(g_numAnimWalls));
Bmemcpy(&SpriteDeletionQueue[0],&save->SpriteDeletionQueue[0],sizeof(SpriteDeletionQueue));
Bmemcpy(&g_spriteDeleteQueuePos,&save->g_spriteDeleteQueuePos,sizeof(g_spriteDeleteQueuePos));
Bmemcpy(&animwall[0],&save->animwall[0],sizeof(animwall));
Bmemcpy(&msx[0],&save->msx[0],sizeof(msx));
Bmemcpy(&msy[0],&save->msy[0],sizeof(msy));
Bmemcpy(&g_mirrorWall[0],&save->g_mirrorWall[0],sizeof(g_mirrorWall));
Bmemcpy(&g_mirrorSector[0],&save->g_mirrorSector[0],sizeof(g_mirrorSector));
Bmemcpy(&g_mirrorCount,&save->g_mirrorCount,sizeof(g_mirrorCount));
/*
Bmemcpy(&animategoal[0],&save->animategoal[0],sizeof(animategoal));
Bmemcpy(&animatevel[0],&save->animatevel[0],sizeof(animatevel));
Bmemcpy(&g_animateCount,&save->g_animateCount,sizeof(g_animateCount));
Bmemcpy(&animatesect[0],&save->animatesect[0],sizeof(animatesect));
Bmemcpy(&animateptr[0],&save->animateptr[0],sizeof(animateptr));
G_Util_PtrToIdx(animateptr, g_animateCount, sector, P2I_BACK);
*/
Bmemcpy(&g_numPlayerSprites,&save->g_numPlayerSprites,sizeof(g_numPlayerSprites));
Bmemcpy(&g_earthquakeTime,&save->g_earthquakeTime,sizeof(g_earthquakeTime));
// Bmemcpy(&lockclock,&save->lockclock,sizeof(lockclock));
Bmemcpy(&randomseed,&save->randomseed,sizeof(randomseed));
Bmemcpy(&g_globalRandom,&save->g_globalRandom,sizeof(g_globalRandom));
/*
for (i=g_gameVarCount-1; i>=0; i--)
{
if (aGameVars[i].dwFlags & GAMEVAR_NORESET) continue;
if (aGameVars[i].dwFlags & GAMEVAR_PERPLAYER)
{
if (!save->vars[i]) continue;
Bmemcpy(&aGameVars[i].val.plValues[0],&save->vars[i][0],sizeof(intptr_t) * MAXPLAYERS);
}
else if (aGameVars[i].dwFlags & GAMEVAR_PERACTOR)
{
if (!save->vars[i]) continue;
Bmemcpy(&aGameVars[i].val.plValues[0],&save->vars[i][0],sizeof(intptr_t) * MAXSPRITES);
}
else aGameVars[i].val.lValue = (intptr_t)save->vars[i];
}
*/
Gv_RefreshPointers();
for (i=0; i<playerswhenstarted; i++)
sprite[g_player[i].ps->i].extra = phealth[i];
if (g_player[myconnectindex].ps->over_shoulder_on != 0)
{
g_cameraDistance = 0;
g_cameraClock = 0;
g_player[myconnectindex].ps->over_shoulder_on = 1;
}
screenpeek = myconnectindex;
/*
if (ud.lockout == 0)
{
for (x=g_numAnimWalls-1; x>=0; x--)
if (wall[animwall[x].wallnum].extra >= 0)
wall[animwall[x].wallnum].picnum = wall[animwall[x].wallnum].extra;
}
else
{
for (x=g_numAnimWalls-1; x>=0; x--)
switch (DynamicTileMap[wall[animwall[x].wallnum].picnum])
{
case FEMPIC1__STATIC:
wall[animwall[x].wallnum].picnum = BLANKSCREEN;
break;
case FEMPIC2__STATIC:
case FEMPIC3__STATIC:
wall[animwall[x].wallnum].picnum = SCREENBREAK6;
break;
}
}
*/
G_ResetInterpolations();
// Net_ResetPrediction();
// G_ClearFIFO();
// G_ResetTimers();
initprintf("Net_RestoreMapState(): restored revision %u\n",save->revision);
}
static void P_RemovePlayer(int32_t p)
{
// server obviously can't leave the game, and index 0 shows up for disconnect events from
// players that haven't gotten far enough into the connection process to get a player ID
if (p == 0) return;
g_player[p].playerquitflag = 0;
Bsprintf(buf,"%s^00 is history!",g_player[p].user_name);
G_AddUserQuote(buf);
if (numplayers == 1)
S_PlaySound(GENERIC_AMBIENCE17);
if (g_player[myconnectindex].ps->gm & MODE_GAME)
{
if (screenpeek == p)
screenpeek = myconnectindex;
pub = NUMPAGES;
pus = NUMPAGES;
G_UpdateScreenArea();
P_QuickKill(g_player[p].ps);
if (voting == p)
{
for (p=0; p<MAXPLAYERS; p++)
{
g_player[p].vote = 0;
g_player[p].gotvote = 0;
}
voting = -1;
}
Bstrcpy(ScriptQuotes[QUOTE_RESERVED2],buf);
g_player[myconnectindex].ps->ftq = QUOTE_RESERVED2;
g_player[myconnectindex].ps->fta = 180;
}
}
// sync a connecting player up with the current game state
void Net_SyncPlayer(ENetEvent *event)
{
int32_t i, j;
g_netPlayersWaiting++;
S_PlaySound(DUKE_GETWEAPON2);
// open a new slot if necessary and save off the resulting slot # for future reference
for (TRAVERSE_CONNECT(i))
{
if (g_player[i].playerquitflag == 0)
{
break;
}
}
if (i == -1)
{
i = playerswhenstarted++;
}
event->peer->data = (void *)(intptr_t)i;
g_player[i].netsynctime = totalclock;
g_player[i].playerquitflag = 1;
g_player[i].revision = g_netMapRevision;
for (j=0; j<playerswhenstarted-1; j++)
{
connectpoint2[j] = j+1;
}
connectpoint2[playerswhenstarted-1] = -1;
if (!g_player[i].ps)
{
g_player[i].ps = (DukePlayer_t *) Bcalloc(1, sizeof(DukePlayer_t));
}
if (!g_player[i].sync)
{
g_player[i].sync = (input_t *) Bcalloc(1, sizeof(input_t));
}
++numplayers;
++ud.multimode;
Net_SendNewPlayer(i);
Net_SendPlayerIndex(i, event->peer);
Net_SendClientInfo();
Net_SendUserMapName();
Net_SendClientSync(event, i);
}
static void display_betascreen(void)
{
rotatesprite_fs(0,0,65536,0,BETASCREEN,0,0,2+8+16+64);
rotatesprite_fs(160<<16,(104)<<16,60<<10,0,DUKENUKEM,0,0,2+8);
rotatesprite_fs(160<<16,(129)<<16,30<<11,0,THREEDEE,0,0,2+8);
if (PLUTOPAK) // JBF 20030804
rotatesprite_fs(160<<16,(151)<<16,30<<11,0,PLUTOPAKSPRITE+1,0,0,2+8);
}
void faketimerhandler(void)
{
if (g_netServer==NULL && g_netClient==NULL)
return;
enet_host_service(g_netServer ? g_netServer : g_netClient, NULL, 0);
}
void Net_WaitForServer(void)
{
int32_t server_ready = g_player[0].pingcnt;
if (numplayers < 2 || g_netServer) return;
P_SetGamePalette(g_player[myconnectindex].ps, TITLEPAL, 8+2+1);
do
{
if (quitevent || keystatus[1]) G_GameExit("");
display_betascreen();
gametext(160,170,"Waiting for server",14,2);
nextpage();
packbuf[0] = PACKET_PLAYER_PING;
packbuf[1] = myconnectindex;
if (g_netClientPeer)
enet_peer_send(g_netClientPeer, CHAN_GAMESTATE, enet_packet_create(packbuf, 2, ENET_PACKET_FLAG_RELIABLE));
G_HandleAsync();
if (g_player[0].pingcnt > server_ready)
{
P_SetGamePalette(g_player[myconnectindex].ps, BASEPAL, 8+2+1);
return;
}
}
while (1);
}
void Net_ResetPrediction(void)
{
Bmemcpy(&my, &g_player[myconnectindex].ps, sizeof(vec3_t));
Bmemcpy(&omy, &g_player[myconnectindex].ps, sizeof(vec3_t));
Bmemset(&myvel, 0, sizeof(vec3_t));
myang = omyang = g_player[myconnectindex].ps->ang;
myhoriz = omyhoriz = g_player[myconnectindex].ps->horiz;
myhorizoff = omyhorizoff = g_player[myconnectindex].ps->horizoff;
mycursectnum = g_player[myconnectindex].ps->cursectnum;
myjumpingcounter = g_player[myconnectindex].ps->jumping_counter;
myjumpingtoggle = g_player[myconnectindex].ps->jumping_toggle;
myonground = g_player[myconnectindex].ps->on_ground;
myhardlanding = g_player[myconnectindex].ps->hard_landing;
myreturntocenter = g_player[myconnectindex].ps->return_to_center;
}
////////////////////////////////////////////////////////////////////////////////
// Connect/Disconnect
void Net_Connect(const char *srvaddr)
{
ENetAddress address;
ENetEvent event;
char *addrstr = NULL;
int32_t i;
char *oursrvaddr = Bstrdup(srvaddr);
if (!oursrvaddr) G_GameExit("OUT OF MEMORY");
Net_Disconnect();
g_netClient = enet_host_create(NULL, 1, CHAN_MAX, 0, 0);
if (g_netClient == NULL)
{
initprintf("An error occurred while trying to create an ENet client host.\n");
return;
}
addrstr = strtok(oursrvaddr, ":");
enet_address_set_host(&address, addrstr);
addrstr = strtok(NULL, ":");
address.port = addrstr==NULL ? g_netPort : Batoi(addrstr);
g_netClientPeer = enet_host_connect(g_netClient, &address, CHAN_MAX, 0);
if (g_netClientPeer == NULL)
{
initprintf("No available peers for initiating an ENet connection.\n");
return;
}
for (i=4; i>0; i--)
{
/* Wait up to 5 seconds for the connection attempt to succeed. */
if (enet_host_service(g_netClient, & event, 5000) > 0 &&
event.type == ENET_EVENT_TYPE_CONNECT)
{
initprintf("Connection to %s:%d succeeded.\n", oursrvaddr, address.port);
Bfree(oursrvaddr);
return;
}
else
{
/* Either the 5 seconds are up or a disconnect event was */
/* received. Reset the peer in the event the 5 seconds */
/* had run out without any significant event. */
enet_peer_reset(g_netClientPeer);
initprintf("Connection to %s:%d failed.\n", oursrvaddr, address.port);
}
initprintf(i ? "Retrying...\n" : "Giving up connection attempt.\n");
}
Bfree(oursrvaddr);
Net_Disconnect();
}
void Net_Disconnect(void)
{
if (g_netClient)
{
ENetEvent event;
if (g_netClientPeer)
enet_peer_disconnect_later(g_netClientPeer, 0);
while (enet_host_service(g_netClient, & event, 3000) > 0)
{
switch (event.type)
{
case ENET_EVENT_TYPE_CONNECT:
case ENET_EVENT_TYPE_NONE:
case ENET_EVENT_TYPE_RECEIVE:
if (event.packet)
enet_packet_destroy(event.packet);
break;
case ENET_EVENT_TYPE_DISCONNECT:
numplayers = playerswhenstarted = ud.multimode = 1;
myconnectindex = screenpeek = 0;
G_BackToMenu();
break;
}
}
enet_peer_reset(g_netClientPeer);
g_netClientPeer = NULL;
enet_host_destroy(g_netClient);
g_netClient = NULL;
return;
}
if (g_netServer)
{
int32_t i;
ENetEvent event;
for (i=0; i<(signed)g_netServer->peerCount; i++)
enet_peer_disconnect_later(&g_netServer->peers[i], 0);
while (enet_host_service(g_netServer, & event, 3000) > 0)
{
switch (event.type)
{
case ENET_EVENT_TYPE_CONNECT:
case ENET_EVENT_TYPE_NONE:
case ENET_EVENT_TYPE_RECEIVE:
case ENET_EVENT_TYPE_DISCONNECT:
if (event.packet)
enet_packet_destroy(event.packet);
break;
}
}
enet_host_destroy(g_netServer);
g_netServer = NULL;
}
}
void Net_ReceiveDisconnect(ENetEvent *event)
{
g_netDisconnect = 1;
numplayers = playerswhenstarted = ud.multimode = 1;
myconnectindex = screenpeek = 0;
G_BackToMenu();
switch (event->data)
{
case DISC_BAD_PASSWORD:
initprintf("Bad password.\n");
return;
case DISC_KICKED:
initprintf("You have been kicked from the server.\n");
return;
case DISC_BANNED:
initprintf("You are banned from this server.\n");
return;
default:
initprintf("Disconnected.\n");
return;
}
}
////////////////////////////////////////////////////////////////////////////////
// Packet Handlers
#endif
void Net_GetPackets(void)
{
sampletimer();
MUSIC_Update();
S_Update();
G_HandleSpecialKeys();
if (g_netDisconnect)
{
Net_Disconnect();
g_netDisconnect = 0;
if (g_gameQuit)
G_GameExit(" ");
return;
}
if (g_netServer)
{
Net_HandleClientPackets();
}
else if (g_netClient)
{
Net_HandleServerPackets();
}
}
#ifndef NETCODE_DISABLE
void Net_HandleClientPackets(void)
{
ENetEvent event;
// pull events from the wire into the packet queue without dispatching them, once per Net_GetPackets() call
enet_host_service(g_netServer, NULL, 0);
// dispatch any pending events from the local packet queue
while (enet_host_check_events(g_netServer, &event) > 0)
{
const intptr_t playeridx = (intptr_t)event.peer->data;
switch (event.type)
{
case ENET_EVENT_TYPE_CONNECT:
{
char ipaddr[32];
enet_address_get_host_ip(&event.peer->address, ipaddr, sizeof(ipaddr));
initprintf("A new client connected from %s:%u.\n", ipaddr, event.peer->address.port);
Net_SendVersion(event.peer);
break;
}
case ENET_EVENT_TYPE_RECEIVE:
/*
initprintf ("A packet of length %u containing %s was received from player %d on channel %u.\n",
event.packet -> dataLength,
event.packet -> data,
event.peer -> data,
event.channelID);
*/
Net_ParseClientPacket(&event);
// broadcast takes care of enet_packet_destroy itself
// we set the state to disconnected so enet_host_broadcast
// doesn't send the player back his own packets
if ((event.channelID == CHAN_GAMESTATE && event.packet->data[0] > PACKET_BROADCAST)
|| event.channelID == CHAN_CHAT)
{
const ENetPacket *pak = event.packet;
event.peer->state = ENET_PEER_STATE_DISCONNECTED;
enet_host_broadcast(g_netServer, event.channelID,
enet_packet_create(pak->data, pak->dataLength, pak->flags&ENET_PACKET_FLAG_RELIABLE));
event.peer->state = ENET_PEER_STATE_CONNECTED;
}
enet_packet_destroy(event.packet);
g_player[playeridx].ping = (event.peer->lastRoundTripTime + event.peer->roundTripTime)/2;
break;
case ENET_EVENT_TYPE_DISCONNECT:
numplayers--;
ud.multimode--;
P_RemovePlayer(playeridx);
packbuf[0] = PACKET_PLAYER_DISCONNECTED;
packbuf[1] = playeridx;
packbuf[2] = numplayers;
packbuf[3] = ud.multimode;
packbuf[4] = playerswhenstarted;
packbuf[5] = myconnectindex;
enet_host_broadcast(g_netServer, CHAN_GAMESTATE,
enet_packet_create(packbuf, 6, ENET_PACKET_FLAG_RELIABLE));
initprintf("%s disconnected.\n", g_player[playeridx].user_name);
event.peer->data = NULL;
break;
default:
break;
}
}
}
void Net_HandleServerPackets(void)
{
ENetEvent event;
enet_host_service(g_netClient, NULL, 0);
while (enet_host_check_events(g_netClient, &event) > 0)
{
if (event.type == ENET_EVENT_TYPE_DISCONNECT)
{
Net_ReceiveDisconnect(&event);
}
else if (event.type == ENET_EVENT_TYPE_RECEIVE)
{
if (event.channelID == CHAN_SYNC)
{
Net_ReceiveClientSync(&event);
}
else
{
Net_ParseServerPacket(&event);
}
}
enet_packet_destroy(event.packet);
}
}
void Net_ParseClientPacket(ENetEvent *event)
{
uint8_t *pbuf = event->packet->data;
int32_t packbufleng = event->packet->dataLength;
int16_t j;
int32_t other = pbuf[--packbufleng];
#if 0
initprintf("Received Packet: type: %d : len %d\n", pbuf[0], packbufleng);
#endif
switch (pbuf[0])
{
case PACKET_SLAVE_TO_MASTER: //[1] (receive slave sync buffer)
Net_ReceiveClientUpdate(event);
break;
case PACKET_PLAYER_READY:
if (other == 0)
{
break;
}
j = g_player[other].ps->i;
Bmemcpy(g_player[other].ps, g_player[0].ps, sizeof(DukePlayer_t));
g_player[other].ps->i = j;
changespritestat(j, STAT_PLAYER);
g_player[other].ps->last_extra = sprite[g_player[other].ps->i].extra = g_player[other].ps->max_player_health;
sprite[g_player[other].ps->i].cstat = 1+256;
actor[g_player[other].ps->i].t_data[2] = actor[g_player[other].ps->i].t_data[3] = actor[g_player[other].ps->i].t_data[4] = 0;
P_ResetPlayer(other);
j = 0;
packbuf[j++] = PACKET_PLAYER_SPAWN;
packbuf[j++] = other;
Bmemcpy(&packbuf[j], &g_player[other].ps->pos.x, sizeof(vec3_t) * 2);
j += sizeof(vec3_t) * 2;
packbuf[j++] = 0;
enet_host_broadcast(g_netServer, CHAN_GAMESTATE, enet_packet_create(packbuf, j, ENET_PACKET_FLAG_RELIABLE));
break;
case PACKET_PLAYER_PING:
if (g_player[myconnectindex].ps->gm & MODE_GAME)
{
packbuf[0] = PACKET_PLAYER_PING;
packbuf[1] = myconnectindex;
enet_peer_send(event->peer, CHAN_GAMESTATE, enet_packet_create(packbuf, 2, ENET_PACKET_FLAG_RELIABLE));
}
g_player[other].pingcnt++;
break;
case PACKET_AUTH:
Net_RecieveChallenge(pbuf, packbufleng, event);
break;
case PACKET_REQUEST_GAMESTATE:
if (g_netServer && g_player[0].ps->gm & MODE_GAME)
{
Net_SendNewGame(0, event->peer);
}
break;
default:
Net_ParsePacketCommon(pbuf, packbufleng, 0);
break;
}
}
void Net_ParseServerPacket(ENetEvent *event)
{
uint8_t *pbuf = event->packet->data;
int32_t packbufleng = event->packet->dataLength;
int32_t i, j, l;
input_t *nsyn;
--packbufleng; // int32_t other = pbuf[--packbufleng];
#if 0
initprintf("Received Packet: type: %d : len %d\n", pbuf[0], packbufleng);
#endif
switch (pbuf[0])
{
case PACKET_MASTER_TO_SLAVE:
if (!(g_player[myconnectindex].ps->gm & MODE_GAME))
{
return;
}
Net_ReceiveServerUpdate(event);
break;
case PACKET_MAP_STREAM:
if (!(g_player[myconnectindex].ps->gm & MODE_GAME))
return;
if (*(uint32_t *)&pbuf[1] != g_multiMapState[0]->revision)
{
initprintf("base revision mismatch, expected %d and found %d\n", g_player[myconnectindex].revision, *(uint32_t *)&pbuf[1]);
return;
}
Net_ReceiveMapUpdate(pbuf, packbufleng);
break;
case PACKET_NEW_GAME:
Net_ReceiveNewGame(event);
break;
case PACKET_VERSION:
Net_RecieveVersion(pbuf, packbufleng);
break;
case PACKET_NUM_PLAYERS:
Net_RecieveNewPlayer(event->packet->data, event->packet->dataLength);
break;
case PACKET_PLAYER_INDEX:
Net_RecievePlayerIndex(event->packet->data, event->packet->dataLength);
break;
case PACKET_PLAYER_DISCONNECTED:
if ((g_player[myconnectindex].ps->gm & MODE_GAME))
P_RemovePlayer(pbuf[1]);
numplayers = pbuf[2];
ud.multimode = pbuf[3];
playerswhenstarted = pbuf[4];
break;
case PACKET_PLAYER_SPAWN:
if (!(g_player[myconnectindex].ps->gm & MODE_GAME)) break;
P_ResetPlayer(pbuf[1]);
Bmemcpy(&g_player[pbuf[1]].ps->pos.x, &pbuf[2], sizeof(vec3_t) * 2);
Bmemcpy(&sprite[g_player[pbuf[1]].ps->i], &pbuf[2], sizeof(vec3_t));
break;
case PACKET_PLAYER_PING:
g_player[0].pingcnt++;
return;
case PACKET_FRAG:
if (!(g_player[myconnectindex].ps->gm & MODE_GAME)) break;
g_player[pbuf[1]].ps->frag_ps = pbuf[2];
actor[g_player[pbuf[1]].ps->i].picnum = pbuf[3];
ticrandomseed = *(int32_t *)&pbuf[4];
P_FragPlayer(pbuf[1]);
break;
default:
Net_ParsePacketCommon(pbuf, packbufleng, 1);
break;
}
}
void Net_ParsePacketCommon(uint8_t *pbuf, int32_t packbufleng, int32_t serverpacketp)
{
int32_t i, j;
switch (pbuf[0])
{
case PACKET_MESSAGE:
Net_ReceiveMessage(pbuf, packbufleng);
break;
case PACKET_CLIENT_INFO:
Net_ReceiveClientInfo(pbuf, packbufleng, serverpacketp);
break;
case PACKET_RTS:
if (rts_numlumps == 0) break;
if (ud.config.SoundToggle == 0 || ud.lockout == 1 || ud.config.FXDevice < 0 || !(ud.config.VoiceToggle & 4))
break;
FX_PlayAuto3D((char *)RTS_GetSound(pbuf[1]-1),RTS_SoundLength(pbuf[1]-1),0,0,0,255,-pbuf[1]);
g_RTSPlaying = 7;
break;
case PACKET_USER_MAP:
Net_ReceiveUserMapName(pbuf, packbufleng);
break;
case PACKET_MAP_VOTE:
Net_RecieveMapVote(pbuf);
break;
case PACKET_MAP_VOTE_INITIATE: // call map vote
Net_RecieveMapVoteInitiate(pbuf);
break;
case PACKET_MAP_VOTE_CANCEL: // cancel map vote
Net_RecieveMapVoteCancel(pbuf);
break;
}
}
////////////////////////////////////////////////////////////////////////////////
// Version Packets
// TODO: switch this around so the client sends their version to the server for
// verification, instead of the other way around like it is now
void Net_SendVersion(ENetPeer *client)
{
if (!g_netServer)
return;
buf[0] = PACKET_VERSION;
*(uint16_t *)&buf[1] = BYTEVERSION;
// XXX: s_buildDate is outdated and useless; uint8 is not enough :/
buf[3] = (uint8_t)atoi(s_buildDate);
buf[4] = myconnectindex;
enet_peer_send(client, CHAN_GAMESTATE, enet_packet_create(&buf[0], 5, ENET_PACKET_FLAG_RELIABLE));
}
void Net_RecieveVersion(uint8_t *pbuf, int32_t packbufleng)
{
if (*(uint16_t *)&pbuf[1] != BYTEVERSION || pbuf[3] != (uint8_t)atoi(s_buildDate))
{
initprintf("Server protocol is version %d.%d, expecting %d.%d\n",
*(uint16_t *)&pbuf[1], pbuf[3], BYTEVERSION, (uint8_t)atoi(s_buildDate));
initprintf("Server version mismatch! You cannot play Duke with different versions!\n");
g_netDisconnect = 1;
return;
}
Net_SendChallenge();
}
////////////////////////////////////////////////////////////////////////////////
// Challenge Packets
// sends a simple crc32 of the current password, verified by the server before the connection can continue
void Net_SendChallenge()
{
int32_t l = 1;
if (!g_netClientPeer)
{
return;
}
buf[0] = PACKET_AUTH;
*(uint32_t *)&buf[1] = crc32once((uint8_t *)g_netPassword, Bstrlen(g_netPassword));
l += sizeof(int32_t);
buf[l++] = myconnectindex;
enet_peer_send(g_netClientPeer, CHAN_GAMESTATE, enet_packet_create(&buf[0], l, ENET_PACKET_FLAG_RELIABLE));
}
void Net_RecieveChallenge(uint8_t *pbuf, int32_t packbufleng, ENetEvent *event)
{
uint32_t crc = *(uint32_t *)&pbuf[1];
if (crc == crc32once((uint8_t *)g_netPassword, Bstrlen(g_netPassword)))
{
Net_SyncPlayer(event);
}
else
{
enet_peer_disconnect_later(event->peer, DISC_BAD_PASSWORD);
initprintf("Bad password from client.\n");
}
}
////////////////////////////////////////////////////////////////////////////////
// Num Players Packets
void Net_SendNewPlayer(int32_t newplayerindex)
{
packbuf[0] = PACKET_NUM_PLAYERS;
packbuf[1] = numplayers;
packbuf[2] = playerswhenstarted;
packbuf[3] = ud.multimode;
packbuf[4] = newplayerindex;
packbuf[5] = g_networkMode;
packbuf[6] = myconnectindex;
enet_host_broadcast(g_netServer, CHAN_GAMESTATE, enet_packet_create(packbuf, 7, ENET_PACKET_FLAG_RELIABLE));
}
void Net_RecieveNewPlayer(uint8_t *pbuf, int32_t packbufleng)
{
int32_t i;
numplayers = pbuf[1];
playerswhenstarted = pbuf[2];
ud.multimode = pbuf[3];
if (pbuf[4]) // ID of new player
{
g_player[pbuf[4]].playerquitflag = 1;
if (!g_player[pbuf[4]].ps)
{
g_player[pbuf[4]].ps = (DukePlayer_t *) Bcalloc(1,sizeof(DukePlayer_t));
}
if (!g_player[pbuf[4]].sync)
{
g_player[pbuf[4]].sync = (input_t *) Bcalloc(1,sizeof(input_t));
}
}
if (pbuf[5] == NET_DEDICATED_SERVER)
{
g_networkMode = NET_DEDICATED_CLIENT;
}
for (i=0; i<playerswhenstarted-1; i++)
{
connectpoint2[i] = i+1;
}
connectpoint2[playerswhenstarted-1] = -1;
S_PlaySound(DUKE_GETWEAPON2);
// myconnectindex is 0 until we get PACKET_PLAYER_INDEX
if (myconnectindex != 0)
{
Net_SendClientInfo();
}
}
////////////////////////////////////////////////////////////////////////////////
// Player Index Packets
void Net_SendPlayerIndex(int32_t index, ENetPeer *peer)
{
packbuf[0] = PACKET_PLAYER_INDEX;
packbuf[1] = index;
packbuf[2] = myconnectindex;
enet_peer_send(peer, CHAN_GAMESTATE, enet_packet_create(packbuf, 3, ENET_PACKET_FLAG_RELIABLE));
}
void Net_RecievePlayerIndex(uint8_t *pbuf, int32_t packbufleng)
{
myconnectindex = pbuf[1];
g_player[myconnectindex].playerquitflag = 1;
Net_SendClientInfo();
}
////////////////////////////////////////////////////////////////////////////////
// Client Info Packets
void Net_SendClientInfo(void)
{
int32_t i,l;
for (l=0; (unsigned)l<sizeof(szPlayerName)-1; l++)
g_player[myconnectindex].user_name[l] = Btoupper(szPlayerName[l]);
if (numplayers < 2) return;
buf[0] = PACKET_CLIENT_INFO;
l = 1;
//null terminated player name to send
for (i=0; szPlayerName[i]; i++)
{
buf[l++] = Btoupper(szPlayerName[i]);
}
buf[l++] = 0;
buf[l++] = g_player[myconnectindex].ps->aim_mode = ud.mouseaiming;
buf[l++] = g_player[myconnectindex].ps->auto_aim = ud.config.AutoAim;
buf[l++] = g_player[myconnectindex].ps->weaponswitch = ud.weaponswitch;
buf[l++] = g_player[myconnectindex].ps->palookup = g_player[myconnectindex].pcolor = ud.color;
buf[l++] = g_player[myconnectindex].pteam = ud.team;
for (i=0; i<10; i++)
{
g_player[myconnectindex].wchoice[i] = g_player[0].wchoice[i];
buf[l++] = (uint8_t)g_player[0].wchoice[i];
}
buf[l++] = myconnectindex;
if (g_netClient)
{
enet_peer_send(g_netClientPeer, CHAN_GAMESTATE, enet_packet_create(&buf[0], l, ENET_PACKET_FLAG_RELIABLE));
}
else if (g_netServer)
{
enet_host_broadcast(g_netServer, CHAN_GAMESTATE, enet_packet_create(&buf[0], l, ENET_PACKET_FLAG_RELIABLE));
}
}
void Net_ReceiveClientInfo(uint8_t *pbuf, int32_t packbufleng, int32_t fromserver)
{
uint32_t i, j;
int32_t other = pbuf[packbufleng];
for (i=1; pbuf[i]; i++)
{
g_player[other].user_name[i-1] = pbuf[i];
}
g_player[other].user_name[i-1] = 0;
i++;
g_player[other].ps->aim_mode = pbuf[i++];
g_player[other].ps->auto_aim = pbuf[i++];
g_player[other].ps->weaponswitch = pbuf[i++];
g_player[other].ps->palookup = g_player[other].pcolor = pbuf[i++];
g_player[other].pteam = pbuf[i++];
for (j=i; i-j<10; i++)
{
g_player[other].wchoice[i-j] = pbuf[i];
}
if (fromserver)
{
g_player[other].playerquitflag = 1;
}
}
////////////////////////////////////////////////////////////////////////////////
// Map Name Packets
void Net_SendUserMapName(void)
{
int32_t j;
if (numplayers < 2)
return;
packbuf[0] = PACKET_USER_MAP;
Bcorrectfilename(boardfilename,0);
// user map name is sent with a NUL at the end
j = Bstrlen(boardfilename)+1;
Bmemcpy(&packbuf[1], boardfilename, j);
j++;
packbuf[j++] = myconnectindex;
if (g_netClient)
{
enet_peer_send(g_netClientPeer, CHAN_GAMESTATE, enet_packet_create(packbuf, j, ENET_PACKET_FLAG_RELIABLE));
}
else if (g_netServer)
{
enet_host_broadcast(g_netServer, CHAN_GAMESTATE, enet_packet_create(packbuf, j, ENET_PACKET_FLAG_RELIABLE));
}
}
void Net_ReceiveUserMapName(uint8_t *pbuf, int32_t packbufleng)
{
int32_t i;
Bstrcpy(boardfilename,(char *)pbuf+1);
boardfilename[packbufleng-1] = 0;
Bcorrectfilename(boardfilename,0);
if (boardfilename[0] != 0)
{
if ((i = kopen4loadfrommod(boardfilename,0)) < 0)
{
Bmemset(boardfilename,0,sizeof(boardfilename));
Net_SendUserMapName();
}
else kclose(i);
}
if (ud.m_level_number == 7 && ud.m_volume_number == 0 && boardfilename[0] == 0)
ud.m_level_number = 0;
}
////////////////////////////////////////////////////////////////////////////////
// Client Sync Packets
void Net_SendClientSync(ENetEvent *event, int32_t player)
{
int32_t j;
int32_t i = player;
if ((g_player[0].ps->gm & MODE_GAME) == 0)
{
return;
}
alloc_multimapstate(i);
sprite[g_player[i].ps->i].cstat = 32768;
g_player[i].ps->runspeed = g_playerFriction;
g_player[i].ps->last_extra = sprite[g_player[i].ps->i].extra = g_player[i].ps->max_player_health = g_maxPlayerHealth;
Net_SaveMapState(g_multiMapState[i]);
if ((j = qlz_compress((char *)g_multiMapState[i], tempnetbuf, sizeof(netmapstate_t), state_compress)))
{
enet_peer_send(event->peer, CHAN_SYNC, enet_packet_create(tempnetbuf, j, ENET_PACKET_FLAG_RELIABLE));
enet_host_service(g_netServer, NULL, 0);
initprintf("Compressed %u bytes to %u\n", (uint32_t)sizeof(netmapstate_t), (uint32_t)qlz_size_compressed(tempnetbuf));
}
else
{
initprintf("Error compressing map state for transfer!\n");
}
}
void Net_ReceiveClientSync(ENetEvent *event)
{
const char *pbuf = (const char *) event->packet->data;
if (qlz_size_decompressed(pbuf) == sizeof(netmapstate_t))
{
alloc_multimapstate(0);
qlz_decompress((const char *)pbuf, g_multiMapState[0], state_decompress);
packbuf[0] = PACKET_REQUEST_GAMESTATE;
packbuf[1] = myconnectindex;
enet_peer_send(g_netClientPeer, CHAN_GAMESTATE, enet_packet_create(&packbuf[0], 2, ENET_PACKET_FLAG_RELIABLE));
gametext(160,190,"Transfer Complete",14,2);
}
else
{
initprintf("Invalid map state from server! Decompressed to %u bytes, expected %u.\n",
(uint32_t)qlz_size_decompressed((char *)buf), (uint32_t)sizeof(netmapstate_t));
g_netDisconnect = 1;
gametext(160,190,"Transfer Error",14,2);
}
}
////////////////////////////////////////////////////////////////////////////////
// Map Update Packets
char g_netCompressBuf[PACKBUF_SIZE+400];
void Net_SendMapUpdate(void)
{
int32_t pi;
int32_t siz = 0;
netmapstate_t *currentstate;
size_t osize = sizeof(netmapstate_t);
if (!g_netServer || numplayers < 2)
return;
currentstate = g_multiMapRevisions[g_netMapRevision % NET_REVISIONS];
if (currentstate == NULL)
{
currentstate = (netmapstate_t *) Bcalloc(1, sizeof(netmapstate_t));
g_multiMapRevisions[g_netMapRevision % NET_REVISIONS] = currentstate;
}
Net_SaveMapState(currentstate);
for (pi=0; pi<(signed)g_netServer->peerCount; pi++)
{
ENetPeer *const currentPeer = &g_netServer->peers[pi];
const intptr_t playeridx = (intptr_t)currentPeer->data;
if (currentPeer->state != ENET_PEER_STATE_CONNECTED || !g_player[playeridx].playerquitflag)
{
continue;
}
if (g_player[playeridx].revision == g_netMapRevision)
{
continue;
}
packbuf[0] = PACKET_MAP_STREAM;
*(uint32_t *)&packbuf[1] = g_player[playeridx].revision; // base revision for this update
/*
xd3_encode_memory((const uint8_t *) currentstate, sizeof(netmapstate_t),
(const uint8_t *) g_multiMapState[playeridx], sizeof(netmapstate_t),
(uint8_t *)tempnetbuf, &osize, sizeof(netmapstate_t), XD3_COMPLEVEL_1|XD3_NOCOMPRESS);
Bmemcpy(g_pendingMapState[playeridx], currentstate, sizeof(netmapstate_t));
*/
siz = qlz_compress((char *)tempnetbuf, packbuf+1+sizeof(uint32_t), osize, state_compress);
siz++; // Because of the packet tag
siz += sizeof(uint32_t); // Because of the revision
packbuf[siz++] = myconnectindex;
initprintf("final packet size: %d\n", siz);
enet_peer_send(currentPeer, CHAN_GAMESTATE, enet_packet_create(packbuf, siz, ENET_PACKET_FLAG_RELIABLE));
}
g_netMapRevision++;
}
void Net_ReceiveMapUpdate(uint8_t *pbuf, int32_t packbufleng)
{
int ret;
size_t osize = 0;
netmapstate_t *receivedstate;
packbufleng = qlz_size_decompressed((char *)&pbuf[5]);
pbuf = (uint8_t *)Bmalloc(packbufleng<<1);
packbufleng = qlz_decompress((char *)&pbuf[4], (char *)(pbuf), state_decompress);
initprintf("packbufleng: %d\n", packbufleng);
/*
ret = xd3_decode_memory((const uint8_t *)pbuf, packbufleng,
(const uint8_t *)g_multiMapState[0], sizeof(netmapstate_t),
(uint8_t *)tempnetbuf, &osize, sizeof(netmapstate_t), XD3_COMPLEVEL_1|XD3_NOCOMPRESS);
if (ret)
{
initprintf("xdelta3 returned %d\n", ret);
Bfree(pbuf);
return;
}
*/
if (sizeof(netmapstate_t) != osize)
{
initprintf("decompressed data size mismatch!\n");
}
else
{
receivedstate = (netmapstate_t *) tempnetbuf;
Net_RestoreMapState(receivedstate);
g_player[myconnectindex].revision = receivedstate->revision;
Bmemcpy(g_multiMapState[0], receivedstate, sizeof(netmapstate_t));
}
Bfree(pbuf);
}
////////////////////////////////////////////////////////////////////////////////
// Player Updates
void Net_FillPlayerUpdate(playerupdate_t *update, int32_t player)
{
update->playerindex = player;
update->pos = g_player[player].ps->pos;
update->opos = g_player[player].ps->opos;
update->vel = g_player[player].ps->vel;
update->ang = g_player[player].ps->ang;
update->horiz = g_player[player].ps->horiz;
update->horizoff = g_player[player].ps->horizoff;
update->ping = g_player[player].ping;
update->deadflag = g_player[player].ps->dead_flag;
update->playerquitflag = g_player[player].playerquitflag;
}
void Net_ExtractPlayerUpdate(playerupdate_t *update)
{
const int32_t playerindex = update->playerindex;
if (playerindex != myconnectindex)
{
g_player[playerindex].ps->pos = update->pos;
g_player[playerindex].ps->opos = update->opos;
g_player[playerindex].ps->vel = update->vel;
g_player[playerindex].ps->ang = update->ang;
g_player[playerindex].ps->horiz = update->horiz;
g_player[playerindex].ps->horizoff = update->horizoff;
}
g_player[playerindex].ping = update->ping;
g_player[playerindex].ps->dead_flag = update->deadflag;
g_player[playerindex].playerquitflag = update->playerquitflag;
//updatesectorz(g_player[other].ps->pos.x, g_player[other].ps->pos.y, g_player[other].ps->pos.z, &g_player[other].ps->cursectnum);
//changespritesect(g_player[other].ps->i, g_player[other].ps->cursectnum);
}
////////////////////////////////////////////////////////////////////////////////
// Server Update Packets
#pragma pack(push,1)
typedef struct
{
uint8_t header;
uint8_t numplayers;
input_t nsyn;
int32_t seed;
int16_t pause_on;
} serverupdate_t;
#pragma pack(pop)
#pragma pack(push,1)
typedef struct
{
uint8_t extra;
int16_t cstat;
uint16_t owner;
uint16_t picnum;
uint16_t gotweapon;
uint8_t kickback_pic;
uint8_t frags[MAXPLAYERS];
int16_t inv_amount[GET_MAX];
int16_t ammo_amount[MAX_WEAPONS];
uint8_t curr_weapon;
uint8_t last_weapon;
uint8_t wantweaponfire;
uint8_t weapon_pos;
uint8_t frag_ps;
uint8_t frag;
uint8_t fraggedself;
uint8_t last_extra;
uint8_t pal;
uint16_t ping;
uint16_t newowner;
playerupdate_t player;
} serverplayerupdate_t;
#pragma pack(pop)
void Net_SendServerUpdates(void)
{
int16_t i;
char *updatebuf;
serverupdate_t serverupdate;
serverplayerupdate_t playerupdate;
input_t *osyn = (input_t *)&inputfifo[1][0];
input_t *nsyn = (input_t *)&inputfifo[0][0];
ticrandomseed = randomseed;
if (g_netServer)
{
Bmemcpy(&osyn[0], &nsyn[0], sizeof(input_t));
}
if (!g_netServer || numplayers < 2)
{
return;
}
if ((ticrandomseed % 5) == 0)
{
return;
}
serverupdate.header = PACKET_MASTER_TO_SLAVE;
serverupdate.seed = ticrandomseed;
serverupdate.nsyn = *nsyn;
serverupdate.pause_on = ud.pause_on;
serverupdate.numplayers = 0;
updatebuf = tempnetbuf + sizeof(serverupdate_t);
for (TRAVERSE_CONNECT(i))
{
if (g_player[i].playerquitflag == 0)
{
continue;
}
Net_FillPlayerUpdate(&playerupdate.player, i);
playerupdate.gotweapon = g_player[i].ps->gotweapon;
playerupdate.extra = sprite[g_player[i].ps->i].extra;
playerupdate.cstat = sprite[g_player[i].ps->i].cstat;
playerupdate.owner = actor[g_player[i].ps->i].owner;
playerupdate.picnum = actor[g_player[i].ps->i].picnum;
playerupdate.kickback_pic = g_player[i].ps->kickback_pic;
Bmemcpy(playerupdate.frags, g_player[i].frags, sizeof(playerupdate.frags));
Bmemcpy(playerupdate.inv_amount, g_player[i].ps->inv_amount, sizeof(playerupdate.inv_amount));
Bmemcpy(playerupdate.ammo_amount, g_player[i].ps->ammo_amount, sizeof(playerupdate.ammo_amount));
playerupdate.curr_weapon = g_player[i].ps->curr_weapon;
playerupdate.last_weapon = g_player[i].ps->last_weapon;
playerupdate.wantweaponfire = g_player[i].ps->wantweaponfire;
playerupdate.weapon_pos = g_player[i].ps->weapon_pos;
playerupdate.frag_ps = g_player[i].ps->frag_ps;
playerupdate.frag = g_player[i].ps->frag;
playerupdate.fraggedself = g_player[i].ps->fraggedself;
playerupdate.last_extra = g_player[i].ps->last_extra;
playerupdate.ping = g_player[i].ping;
playerupdate.newowner = g_player[i].ps->newowner;
playerupdate.pal = sprite[g_player[i].ps->i].pal;
Bmemcpy(updatebuf, &playerupdate, sizeof(serverplayerupdate_t));
updatebuf += sizeof(serverplayerupdate_t);
serverupdate.numplayers++;
}
if (serverupdate.numplayers == 0)
{
return;
}
Bmemcpy(tempnetbuf, &serverupdate, sizeof(serverupdate_t));
enet_host_broadcast(g_netServer, CHAN_MOVE, enet_packet_create(tempnetbuf, sizeof(serverupdate_t) + (serverupdate.numplayers * sizeof(serverplayerupdate_t)), 0));
/*
for (TRAVERSE_CONNECT(i))
{
l = i;
i = g_player[l].ps->i;
{
packbuf[siz++] = 0;
*(int32_t *)&packbuf[siz] = T5;
siz += sizeof(int32_t);
}
{
int16_t ii=g_gameVarCount-1;
for (; ii>=0 && siz <= (SYNCPACKETSIZE-(SYNCPACKETSIZE>>3)); ii--) // SYNCPACKETSIZE-(SYNCPACKETSIZE>>3) == 1176
{
if ((aGameVars[ii].dwFlags & (GAMEVAR_PERACTOR|GAMEVAR_NOMULTI)) == GAMEVAR_PERACTOR && aGameVars[ii].val.plValues &&
aGameVars[ii].val.plValues[i] != aGameVars[ii].lDefault)
{
*(int16_t *)&packbuf[siz] = ii;
siz += sizeof(int16_t);
*(int32_t *)&packbuf[siz] = aGameVars[ii].val.plValues[i];
siz += sizeof(int32_t);
if (siz >= (SYNCPACKETSIZE-(SYNCPACKETSIZE>>3)))
break;
}
}
*(int16_t *)&packbuf[siz] = MAXGAMEVARS;
siz += sizeof(int16_t);
}
i = l;
{
int16_t ii=g_gameVarCount-1;
for (; ii>=0 && siz <= (SYNCPACKETSIZE-(SYNCPACKETSIZE>>3)); ii--)
{
if ((aGameVars[ii].dwFlags & (GAMEVAR_PERPLAYER|GAMEVAR_NOMULTI)) == GAMEVAR_PERPLAYER && aGameVars[ii].val.plValues &&
aGameVars[ii].val.plValues[i] != aGameVars[ii].lDefault)
{
*(int16_t *)&packbuf[siz] = ii;
siz += sizeof(int16_t);
*(int32_t *)&packbuf[siz] = aGameVars[ii].val.plValues[i];
siz += sizeof(int32_t);
if (siz >= (SYNCPACKETSIZE-(SYNCPACKETSIZE>>3)))
break;
}
}
*(int16_t *)&packbuf[siz] = MAXGAMEVARS;
siz += sizeof(int16_t);
}
}
{
#if 1
// We're screwed anyway if this fails:
Bassert(siz <= PACKBUF_SIZE);
#else
if (siz >= PACKBUF_SIZE)
{
initprintf("Global packet buffer overflow! Size of packet: %i\n", siz);
return;
}
#endif
siz = qlz_compress(packbuf+1, compressbuf, siz, state_compress);
if (siz >= PACKBUF_SIZE-1)
{
initprintf("Packet buffer overflow! Size of compressed MOVE payload: %d\n", siz);
return;
}
Bmemcpy(packbuf+1, compressbuf, siz);
siz++;
}
packbuf[siz++] = myconnectindex;
enet_host_broadcast(g_netServer, CHAN_MOVE, enet_packet_create(packbuf, siz, 0));
*/
}
void Net_ReceiveServerUpdate(ENetEvent *event)
{
int32_t i;
char *updatebuf;
int8_t numupdates;
serverupdate_t serverupdate;
serverplayerupdate_t playerupdate;
if (((event->packet->dataLength - sizeof(serverupdate_t)) % sizeof(serverplayerupdate_t)) != 0)
{
return;
}
updatebuf = (char *) event->packet->data;
Bmemcpy(&serverupdate, updatebuf, sizeof(serverupdate_t));
updatebuf += sizeof(serverupdate_t);
inputfifo[0][0] = serverupdate.nsyn;
ud.pause_on = serverupdate.pause_on;
ticrandomseed = serverupdate.seed;
for (i = 0; i < serverupdate.numplayers; ++i)
{
Bmemcpy(&playerupdate, updatebuf, sizeof(serverplayerupdate_t));
updatebuf += sizeof(serverplayerupdate_t);
Net_ExtractPlayerUpdate(&playerupdate.player);
g_player[i].ps->gotweapon = playerupdate.gotweapon;
sprite[g_player[i].ps->i].extra = playerupdate.extra;
sprite[g_player[i].ps->i].cstat = playerupdate.cstat;
//actor[g_player[i].ps->i].owner = playerupdate.owner; // This makes baby jesus cry
actor[g_player[i].ps->i].picnum = playerupdate.picnum;
g_player[i].ps->kickback_pic = playerupdate.kickback_pic;
Bmemcpy(g_player[i].frags, playerupdate.frags, sizeof(playerupdate.frags));
Bmemcpy(g_player[i].ps->inv_amount, playerupdate.inv_amount, sizeof(playerupdate.inv_amount));
Bmemcpy(g_player[i].ps->ammo_amount, playerupdate.ammo_amount, sizeof(playerupdate.ammo_amount));
g_player[i].ps->curr_weapon = playerupdate.curr_weapon;
g_player[i].ps->last_weapon = playerupdate.last_weapon;
g_player[i].ps->wantweaponfire = playerupdate.wantweaponfire;
g_player[i].ps->weapon_pos = playerupdate.weapon_pos;
g_player[i].ps->frag_ps = playerupdate.frag_ps;
g_player[i].ps->frag = playerupdate.frag;
g_player[i].ps->fraggedself = playerupdate.fraggedself;
g_player[i].ps->last_extra = playerupdate.last_extra;
g_player[i].ping = playerupdate.ping;
sprite[g_player[i].ps->i].pal = playerupdate.pal;
g_player[i].ps->newowner = playerupdate.newowner;
/*
if (g_player[i].ps->newowner == -1 && g_player[i].ps->cursectnum >= 0 && g_player[i].ps->cursectnum < numsectors)
{
updatesectorz(g_player[i].ps->pos.x, g_player[i].ps->pos.y, g_player[i].ps->pos.z,
&g_player[i].ps->cursectnum);
changespritesect(g_player[i].ps->i, g_player[i].ps->cursectnum);
}
*/
}
/*
for (TRAVERSE_CONNECT(i))
{
l = i;
i = g_player[l].ps->i;
{
int32_t oa;
j++;
oa = T5;
T5 = *(int32_t *)&pbuf[j];
j += sizeof(int32_t);
if (oa != T5) T3 = T4 = 0;
}
do
{
uint16_t var_id = *(uint16_t *)&pbuf[j];
j += sizeof(int16_t);
if (var_id == MAXGAMEVARS) break;
aGameVars[var_id].val.plValues[i] = *(int32_t *)&pbuf[j];
j += sizeof(int32_t);
}
while (1);
i = l;
do
{
uint16_t var_id = *(uint16_t *)&pbuf[j];
j += sizeof(int16_t);
if (var_id == MAXGAMEVARS) break;
aGameVars[var_id].val.plValues[i] = *(int32_t *)&pbuf[j];
j += sizeof(int32_t);
}
while (1);
}
*/
}
////////////////////////////////////////////////////////////////////////////////
// Client Update Packets
#pragma pack(push,1)
typedef struct
{
uint8_t header;
uint32_t revision;
input_t nsyn;
playerupdate_t player;
} clientupdate_t;
#pragma pack(pop)
void Net_SendClientUpdate(void)
{
clientupdate_t update;
update.header = PACKET_SLAVE_TO_MASTER;
update.revision = g_player[myconnectindex].revision;
update.nsyn = inputfifo[0][myconnectindex];
Net_FillPlayerUpdate(&update.player, myconnectindex);
enet_peer_send(g_netClientPeer, CHAN_MOVE, enet_packet_create(&update, sizeof(clientupdate_t), 0));
}
void Net_ReceiveClientUpdate(ENetEvent *event)
{
int32_t playeridx;
clientupdate_t update;
if (event->packet->dataLength != sizeof(clientupdate_t))
{
return;
}
Bmemcpy(&update, (char *) event->packet->data, sizeof(clientupdate_t));
playeridx = (int32_t)(intptr_t) event->peer->data;
g_player[playeridx].revision = update.revision;
inputfifo[0][playeridx] = update.nsyn;
Net_ExtractPlayerUpdate(&update.player);
}
////////////////////////////////////////////////////////////////////////////////
// Message Packets
void Net_SendMessage(void)
{
int16_t hitstate, i, j, l;
if (g_player[myconnectindex].ps->gm&MODE_SENDTOWHOM)
{
if (g_chatPlayer != -1 || ud.multimode < 3)
{
tempbuf[0] = PACKET_MESSAGE;
tempbuf[2] = 0;
recbuf[0] = 0;
if (ud.multimode < 3)
g_chatPlayer = 2;
if (typebuf[0] == '/' && Btoupper(typebuf[1]) == 'M' && Btoupper(typebuf[2]) == 'E')
{
Bstrcat(recbuf,"* ");
i = 3, j = Bstrlen(typebuf);
Bstrcpy(tempbuf,typebuf);
while (i < j)
{
typebuf[i-3] = tempbuf[i];
i++;
}
typebuf[i-3] = '\0';
Bstrcat(recbuf,g_player[myconnectindex].user_name);
}
else
{
Bstrcat(recbuf,g_player[myconnectindex].user_name);
Bstrcat(recbuf,": ");
}
Bstrcat(recbuf,"^00");
Bstrcat(recbuf,typebuf);
j = Bstrlen(recbuf);
recbuf[j] = 0;
Bstrcat(tempbuf+2,recbuf);
if (g_chatPlayer >= ud.multimode)
{
tempbuf[1] = 255;
tempbuf[j+2] = myconnectindex;
j++;
if (g_netServer) enet_host_broadcast(g_netServer, CHAN_CHAT, enet_packet_create(tempbuf, j+2, 0));
else if (g_netClient) enet_peer_send(g_netClientPeer, CHAN_CHAT, enet_packet_create(tempbuf, j+2, 0));
G_AddUserQuote(recbuf);
quotebot += 8;
l = G_GameTextLen(USERQUOTE_LEFTOFFSET,OSD_StripColors(tempbuf,recbuf));
while (l > (ud.config.ScreenWidth - USERQUOTE_RIGHTOFFSET))
{
l -= (ud.config.ScreenWidth - USERQUOTE_RIGHTOFFSET);
quotebot += 8;
}
quotebotgoal = quotebot;
}
g_chatPlayer = -1;
g_player[myconnectindex].ps->gm &= ~(MODE_TYPE|MODE_SENDTOWHOM);
}
else if (g_chatPlayer == -1)
{
j = 50;
gametext(320>>1,j,"Send message to...",0,2+8+16);
j += 8;
for (TRAVERSE_CONNECT(i))
{
if (i == myconnectindex)
{
minitextshade((320>>1)-40+1,j+1,"A/ENTER - ALL",26,0,2+8+16);
minitext((320>>1)-40,j,"A/ENTER - ALL",0,2+8+16);
j += 7;
}
else
{
Bsprintf(buf," %d - %s",i+1,g_player[i].user_name);
minitextshade((320>>1)-40-6+1,j+1,buf,26,0,2+8+16);
minitext((320>>1)-40-6,j,buf,0,2+8+16);
j += 7;
}
}
minitextshade((320>>1)-40-4+1,j+1," ESC - Abort",26,0,2+8+16);
minitext((320>>1)-40-4,j," ESC - Abort",0,2+8+16);
j += 7;
if (ud.screen_size > 0) j = 200-45;
else j = 200-8;
mpgametext(j,typebuf,0,2+8+16);
if (KB_KeyWaiting())
{
i = KB_GetCh();
if (i == 'A' || i == 'a' || i == 13)
g_chatPlayer = ud.multimode;
else if (i >= '1' || i <= (ud.multimode + '1'))
g_chatPlayer = i - '1';
else
{
g_chatPlayer = ud.multimode;
if (i == 27)
{
g_player[myconnectindex].ps->gm &= ~(MODE_TYPE|MODE_SENDTOWHOM);
g_chatPlayer = -1;
}
else
typebuf[0] = 0;
}
KB_ClearKeyDown(sc_1);
KB_ClearKeyDown(sc_2);
KB_ClearKeyDown(sc_3);
KB_ClearKeyDown(sc_4);
KB_ClearKeyDown(sc_5);
KB_ClearKeyDown(sc_6);
KB_ClearKeyDown(sc_7);
KB_ClearKeyDown(sc_8);
KB_ClearKeyDown(sc_A);
KB_ClearKeyDown(sc_Escape);
KB_ClearKeyDown(sc_Enter);
}
}
}
else
{
if (ud.screen_size > 1) j = 200-45;
else j = 200-8;
if (xdim >= 640 && ydim >= 480)
j = scale(j,ydim,200);
hitstate = Net_EnterText(320>>1,j,typebuf,120,1);
if (hitstate == 1)
{
KB_ClearKeyDown(sc_Enter);
if (Bstrlen(typebuf) == 0)
{
g_player[myconnectindex].ps->gm &= ~(MODE_TYPE|MODE_SENDTOWHOM);
return;
}
if (ud.automsg)
{
if (SHIFTS_IS_PRESSED) g_chatPlayer = -1;
else g_chatPlayer = ud.multimode;
}
g_player[myconnectindex].ps->gm |= MODE_SENDTOWHOM;
}
else if (hitstate == -1)
g_player[myconnectindex].ps->gm &= ~(MODE_TYPE|MODE_SENDTOWHOM);
else pub = NUMPAGES;
}
}
void Net_ReceiveMessage(uint8_t *pbuf, int32_t packbufleng)
{
Bstrncpy(recbuf, (char *)pbuf+2, packbufleng-2);
recbuf[packbufleng-2] = 0;
G_AddUserQuote(recbuf);
S_PlaySound(EXITMENUSOUND);
pus = pub = NUMPAGES;
}
////////////////////////////////////////////////////////////////////////////////
// New Game Packets
void Net_StartNewGame()
{
int32_t i;
for (TRAVERSE_CONNECT(i))
{
P_ResetWeapons(i);
P_ResetInventory(i);
g_player[i].revision = 0;
}
Net_ExtractNewGame(&pendingnewgame, 0);
G_NewGame(ud.volume_number,ud.level_number,ud.player_skill);
ud.coop = ud.m_coop;
g_netMapRevision = 0;
if (G_EnterLevel(MODE_GAME))
{
G_BackToMenu();
}
}
void Net_SendNewGame(int32_t frommenu, ENetPeer *peer)
{
newgame_t newgame;
newgame.header = PACKET_NEW_GAME;
Net_FillNewGame(&newgame, frommenu);
if (peer)
{
enet_peer_send(peer, CHAN_GAMESTATE, enet_packet_create(&newgame, sizeof(newgame_t), ENET_PACKET_FLAG_RELIABLE));
}
else
{
enet_host_broadcast(g_netServer, CHAN_GAMESTATE, enet_packet_create(&newgame, sizeof(newgame_t), ENET_PACKET_FLAG_RELIABLE));
}
g_netPlayersWaiting--;
}
void Net_ReceiveNewGame(ENetEvent *event)
{
if ((vote_map + vote_episode + voting) != -3)
G_AddUserQuote("Vote Succeeded");
Bmemcpy(&pendingnewgame, event->packet->data, sizeof(newgame_t));
Net_StartNewGame();
packbuf[0] = PACKET_PLAYER_READY;
packbuf[1] = myconnectindex;
if (g_netClientPeer)
{
enet_peer_send(g_netClientPeer, CHAN_GAMESTATE, enet_packet_create(packbuf, 2, ENET_PACKET_FLAG_RELIABLE));
}
g_player[myconnectindex].ps->gm = MODE_GAME;
ready2send = 1;
}
void Net_FillNewGame(newgame_t *newgame, int32_t frommenu)
{
if (frommenu)
{
newgame->level_number = ud.m_level_number;
newgame->volume_number = ud.m_volume_number;
newgame->player_skill = ud.m_player_skill;
newgame->monsters_off = ud.m_monsters_off;
newgame->respawn_monsters = ud.m_respawn_monsters;
newgame->respawn_items = ud.m_respawn_items;
newgame->respawn_inventory = ud.m_respawn_inventory;
newgame->ffire = ud.m_ffire;
newgame->noexits = ud.m_noexits;
newgame->coop = ud.m_coop;
}
else
{
newgame->level_number = ud.level_number;
newgame->volume_number = ud.volume_number;
newgame->player_skill = ud.player_skill;
newgame->monsters_off = ud.monsters_off;
newgame->respawn_monsters = ud.respawn_monsters;
newgame->respawn_items = ud.respawn_items;
newgame->respawn_inventory = ud.respawn_inventory;
newgame->ffire = ud.ffire;
newgame->noexits = ud.noexits;
newgame->coop = ud.coop;
}
}
void Net_ExtractNewGame(newgame_t *newgame, int32_t menuonly)
{
ud.m_level_number = newgame->level_number;
ud.m_volume_number = newgame->volume_number;
ud.m_player_skill = newgame->player_skill;
ud.m_monsters_off = newgame->monsters_off;
ud.m_respawn_monsters = newgame->respawn_monsters;
ud.m_respawn_items = newgame->respawn_items;
ud.m_respawn_inventory = newgame->respawn_inventory;
ud.m_ffire = newgame->ffire;
ud.m_noexits = newgame->noexits;
ud.m_coop = newgame->coop;
if (!menuonly)
{
ud.level_number = newgame->level_number;
ud.volume_number = newgame->volume_number;
ud.player_skill = newgame->player_skill;
ud.monsters_off = newgame->monsters_off;
ud.respawn_monsters = newgame->respawn_monsters;
ud.respawn_monsters = newgame->respawn_items;
ud.respawn_inventory = newgame->respawn_inventory;
ud.ffire = newgame->ffire;
ud.noexits = newgame->noexits;
ud.coop = newgame->coop;
}
}
////////////////////////////////////////////////////////////////////////////////
// Map Vote Packets
void Net_SendMapVoteInitiate(void)
{
int32_t i;
newgame_t newgame;
if (!g_netClient)
{
return;
}
voting = myconnectindex;
newgame.header = PACKET_MAP_VOTE_INITIATE;
newgame.connection = myconnectindex;
Net_FillNewGame(&newgame, 1);
enet_peer_send(g_netClientPeer, CHAN_GAMESTATE, enet_packet_create(&newgame, sizeof(newgame_t), ENET_PACKET_FLAG_RELIABLE));
}
void Net_RecieveMapVoteInitiate(uint8_t *pbuf)
{
int32_t i;
Bmemcpy(&pendingnewgame, pbuf, sizeof(newgame_t));
Net_ExtractNewGame(&pendingnewgame, 1);
voting = pendingnewgame.connection;
vote_episode = pendingnewgame.volume_number;
vote_map = pendingnewgame.level_number;
Bsprintf(tempbuf,"%s^00 has called a vote to change map to %s (E%dL%d)",
g_player[voting].user_name,
MapInfo[(uint8_t)(vote_episode*MAXLEVELS + vote_map)].name,
vote_episode+1,vote_map+1);
G_AddUserQuote(tempbuf);
Bsprintf(tempbuf,"Press F1 to Accept, F2 to Decline");
G_AddUserQuote(tempbuf);
for (i=MAXPLAYERS-1; i>=0; i--)
{
g_player[i].vote = 0;
g_player[i].gotvote = 0;
}
g_player[voting].gotvote = g_player[voting].vote = 1;
}
void Net_SendMapVote(int32_t votefor)
{
voting = -1;
g_player[myconnectindex].gotvote = 1;
g_player[myconnectindex].vote = votefor;
tempbuf[0] = PACKET_MAP_VOTE;
tempbuf[1] = myconnectindex;
tempbuf[2] = votefor;
tempbuf[3] = myconnectindex;
if (g_netClient)
{
enet_peer_send(g_netClientPeer, CHAN_GAMESTATE, enet_packet_create(tempbuf, 4, ENET_PACKET_FLAG_RELIABLE));
}
else if (g_netServer)
{
enet_host_broadcast(g_netServer, CHAN_GAMESTATE, enet_packet_create(tempbuf, 4, ENET_PACKET_FLAG_RELIABLE));
}
Net_CheckForEnoughVotes();
}
void Net_RecieveMapVote(uint8_t *pbuf)
{
if (voting == myconnectindex && g_player[(uint8_t)pbuf[1]].gotvote == 0)
{
Bsprintf(tempbuf,"Confirmed vote from %s",g_player[(uint8_t)pbuf[1]].user_name);
G_AddUserQuote(tempbuf);
}
if (!g_netServer)
{
return;
}
g_player[(uint8_t)pbuf[1]].gotvote = 1;
g_player[(uint8_t)pbuf[1]].vote = pbuf[2];
Net_CheckForEnoughVotes();
}
void Net_CheckForEnoughVotes()
{
int32_t i;
int32_t requiredvotes;
int32_t numfor, numagainst;
// Only the server can decide map changes
if (!g_netServer || numplayers <= 1)
{
return;
}
// If there are just two players, both of them deserve a vote
if (numplayers == 2)
{
requiredvotes = 2;
}
else
{
// If more than two players, we need at least 50% of the players to vote
// Which means that if there's an odd number of players, we'll need slightly more than 50% of the vote.
requiredvotes = numplayers / 2;
if (numplayers % 2 == 1)
{
requiredvotes++;
}
}
numfor = numagainst = 0;
for (i=0; i<MAXPLAYERS; i++)
{
if (g_player[i].gotvote)
{
if (g_player[i].vote)
{
numfor++;
}
else
{
numagainst++;
}
}
}
if (numfor >= requiredvotes)
{
Net_StartNewGame();
Net_SendNewGame(1, NULL);
}
else if (numagainst >= requiredvotes || (numfor + numagainst) == numplayers)
{
Net_SendMapVoteCancel(1);
}
}
// If failed is true, that means the vote lost. Otherwise it was cancelled by the client who initiated it.
void Net_SendMapVoteCancel(int32_t failed)
{
int32_t i;
// Only the server or the client that initiated the vote can cancel the vote
if (g_netClient && voting != myconnectindex)
{
return;
}
tempbuf[0] = PACKET_MAP_VOTE_CANCEL;
tempbuf[1] = myconnectindex;
// If we're forwarding a cancelled message, change the connection index to the one who cancelled it.
if (g_netServer && !failed)
{
tempbuf[1] = voting;
}
voting = -1;
if (g_netClient)
{
enet_peer_send(g_netClientPeer, CHAN_GAMESTATE, enet_packet_create(tempbuf, 2, ENET_PACKET_FLAG_RELIABLE));
}
else if (g_netServer)
{
enet_host_broadcast(g_netServer, CHAN_GAMESTATE, enet_packet_create(tempbuf, 2, ENET_PACKET_FLAG_RELIABLE));
}
}
void Net_RecieveMapVoteCancel(uint8_t *pbuf)
{
int32_t i, numvotes;
// Ignore if we're not voting
if (voting == -1)
{
return;
}
// Ignore cancellations from clients that did not initiate the map vote
if (voting != pbuf[1] && voting != myconnectindex)
{
return;
}
if (voting == myconnectindex || voting != pbuf[1])
{
Bsprintf(tempbuf,"Vote Failed");
}
else if (voting == pbuf[1])
{
Bsprintf(tempbuf,"%s^00 has canceled the vote",g_player[voting].user_name);
}
G_AddUserQuote(tempbuf);
if (g_netServer)
{
Net_SendMapVoteCancel(0);
}
voting = -1;
}
#endif // !defined NETCODE_DISABLE
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