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raze-gles/polymer/eduke32/source/net.c
terminx d7d6623364 More readability cleanup. DONT_BUILD. 
git-svn-id: https://svn.eduke32.com/eduke32@5835 1a8010ca-5511-0410-912e-c29ae57300e0
2016-08-27 01:42:01 +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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 "lz4.h"
#include "crc32.h"
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;
int32_t g_netIndex = 2;
newgame_t pendingnewgame;
#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[] =
{
STAT_PROJECTILE,
//STAT_PLAYER,
STAT_STANDABLE,
//STAT_ACTIVATOR,
//STAT_TRANSPORT,
//STAT_EFFECTOR,
STAT_ACTOR,
STAT_ZOMBIEACTOR,
STAT_MISC,
STAT_DEFAULT,
STAT_NETALLOC,
MAXSTATUS
};
#pragma pack(push,1)
uint32_t g_netMapRevision = 0;
netmapstate_t g_mapStartState;
netmapstate_t *g_mapStateHistory[NET_REVISIONS];
uint8_t tempnetbuf[sizeof(netmapstate_t) + 400];
netmapdiff_t tempMapDiff;
#pragma pack(pop)
#define tempnetbufsize sizeof(tempnetbuf)
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(recbuf,"%s^00 is history!",g_player[p].user_name);
G_AddUserQuote(recbuf);
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(apStrings[QUOTE_RESERVED2],recbuf);
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;
if (numplayers + g_netPlayersWaiting >= MAXPLAYERS)
{
enet_peer_disconnect_later(event->peer, DISC_SERVER_FULL);
initprintf("Refused peer; server full.\n");
return;
}
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 = g_mostConcurrentPlayers++;
}
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<g_mostConcurrentPlayers-1; j++)
{
connectpoint2[j] = j+1;
}
connectpoint2[g_mostConcurrentPlayers-1] = -1;
G_MaybeAllocPlayer(i);
g_netPlayersWaiting--;
++numplayers;
++ud.multimode;
Net_SendNewPlayer(i);
Net_SendPlayerIndex(i, event->peer);
Net_SendClientInfo();
Net_SendUserMapName();
Net_SendNewGame(0, event->peer);
}
void Net_SpawnPlayer(int32_t player)
{
int32_t j = 0;
packbuf[j++] = PACKET_PLAYER_SPAWN;
packbuf[j++] = player;
Bmemcpy(&packbuf[j], &g_player[player].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));
}
static void display_betascreen(void)
{
rotatesprite_fs(160<<16,100<<16,65536,0,BETASCREEN,0,0,2+8+64+BGSTRETCH);
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)
{
}
////////////////////////////////////////////////////////////////////////////////
// Connect/Disconnect
void Net_Connect(const char *srvaddr)
{
ENetAddress address;
ENetEvent event;
char *addrstr = NULL;
int32_t i;
char *oursrvaddr = Xstrdup(srvaddr);
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 = g_mostConcurrentPlayers = 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], DISC_SERVER_QUIT);
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 = g_mostConcurrentPlayers = ud.multimode = 1;
myconnectindex = screenpeek = 0;
G_BackToMenu();
switch (event->data)
{
case DISC_BAD_PASSWORD:
initprintf("Bad password.\n");
return;
case DISC_VERSION_MISMATCH:
initprintf("Version mismatch.\n");
return;
case DISC_INVALID:
initprintf("Invalid data detected.\n");
return;
case DISC_SERVER_QUIT:
initprintf("The server is quitting.\n");
return;
case DISC_SERVER_FULL:
initprintf("The server is full.\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;
if (playeridx < 0 || playeridx >= MAXPLAYERS)
{
enet_peer_disconnect_later(event.peer, DISC_INVALID);
initprintf("Invalid player id (%" PRIdPTR ") from client.\n", playeridx);
continue;
}
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_SendAcknowledge(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] = g_mostConcurrentPlayers;
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)
{
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);
Net_SpawnPlayer(other);
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_ReceiveChallenge(pbuf, packbufleng, event);
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;
// 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;
Net_ReceiveMapUpdate(event);
break;
case PACKET_NEW_GAME:
Net_ReceiveNewGame(event);
break;
case PACKET_ACK:
Net_ReceiveAcknowledge(pbuf, packbufleng);
break;
case PACKET_NUM_PLAYERS:
Net_ReceiveNewPlayer(event->packet->data, event->packet->dataLength);
break;
case PACKET_PLAYER_INDEX:
Net_ReceivePlayerIndex(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];
g_mostConcurrentPlayers = 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 = B_UNBUF32(&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)
{
switch (pbuf[0])
{
case PACKET_MESSAGE:
Net_ReceiveMessage(pbuf, packbufleng);
break;
case PACKET_CLIENT_INFO:
Net_ReceiveClientInfo(pbuf, packbufleng, serverpacketp);
break;
case PACKET_RTS:
G_StartRTS(pbuf[1], 0);
break;
case PACKET_USER_MAP:
Net_ReceiveUserMapName(pbuf, packbufleng);
break;
case PACKET_MAP_VOTE:
Net_ReceiveMapVote(pbuf);
break;
case PACKET_MAP_VOTE_INITIATE: // call map vote
Net_ReceiveMapVoteInitiate(pbuf);
break;
case PACKET_MAP_VOTE_CANCEL: // cancel map vote
Net_ReceiveMapVoteCancel(pbuf);
break;
}
}
////////////////////////////////////////////////////////////////////////////////
// Acknowledgement Packets
void Net_SendAcknowledge(ENetPeer *client)
{
if (!g_netServer)
return;
tempnetbuf[0] = PACKET_ACK;
tempnetbuf[1] = myconnectindex;
enet_peer_send(client, CHAN_GAMESTATE, enet_packet_create(&tempnetbuf[0], 2, ENET_PACKET_FLAG_RELIABLE));
}
void Net_ReceiveAcknowledge(uint8_t *pbuf, int32_t packbufleng)
{
UNREFERENCED_PARAMETER(pbuf); // remove when this variable is used
UNREFERENCED_PARAMETER(packbufleng); // remove when this variable is used
Net_SendChallenge();
}
////////////////////////////////////////////////////////////////////////////////
// Challenge Packets
// sends the version and a simple crc32 of the current password, all verified by the server before the connection can continue
void Net_SendChallenge()
{
if (!g_netClientPeer)
{
return;
}
tempnetbuf[0] = PACKET_AUTH;
B_BUF16(&tempnetbuf[1], BYTEVERSION);
B_BUF16(&tempnetbuf[3], NETVERSION);
B_BUF32(&tempnetbuf[5], Bcrc32((uint8_t *)g_netPassword, Bstrlen(g_netPassword), 0));
tempnetbuf[9] = myconnectindex;
enet_peer_send(g_netClientPeer, CHAN_GAMESTATE, enet_packet_create(&tempnetbuf[0], 10, ENET_PACKET_FLAG_RELIABLE));
}
void Net_ReceiveChallenge(uint8_t *pbuf, int32_t packbufleng, ENetEvent *event)
{
const uint16_t byteVersion = B_UNBUF16(&pbuf[1]);
const uint16_t netVersion = B_UNBUF16(&pbuf[3]);
const uint32_t crc = B_UNBUF32(&pbuf[5]);
UNREFERENCED_PARAMETER(packbufleng); // remove when this variable is used
if (byteVersion != BYTEVERSION || netVersion != NETVERSION)
{
enet_peer_disconnect_later(event->peer, DISC_VERSION_MISMATCH);
initprintf("Bad client protocol: version %u.%u\n", byteVersion, netVersion);
return;
}
if (crc != Bcrc32((uint8_t *)g_netPassword, Bstrlen(g_netPassword), 0))
{
enet_peer_disconnect_later(event->peer, DISC_BAD_PASSWORD);
initprintf("Bad password from client.\n");
return;
}
Net_SyncPlayer(event);
}
////////////////////////////////////////////////////////////////////////////////
// Num Players Packets
void Net_SendNewPlayer(int32_t newplayerindex)
{
packbuf[0] = PACKET_NUM_PLAYERS;
packbuf[1] = numplayers;
packbuf[2] = g_mostConcurrentPlayers;
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_ReceiveNewPlayer(uint8_t *pbuf, int32_t packbufleng)
{
int32_t i;
UNREFERENCED_PARAMETER(packbufleng); // remove when this variable is used
numplayers = pbuf[1];
g_mostConcurrentPlayers = 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 *) Xcalloc(1,sizeof(DukePlayer_t));
}
if (!g_player[pbuf[4]].inputBits)
{
g_player[pbuf[4]].inputBits = (input_t *) Xcalloc(1,sizeof(input_t));
}
}
if (pbuf[5] == NET_DEDICATED_SERVER)
{
g_networkMode = NET_DEDICATED_CLIENT;
}
for (i=0; i<g_mostConcurrentPlayers-1; i++)
{
connectpoint2[i] = i+1;
}
connectpoint2[g_mostConcurrentPlayers-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_ReceivePlayerIndex(uint8_t *pbuf, int32_t packbufleng)
{
UNREFERENCED_PARAMETER(packbufleng); // remove when this variable is used
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] = szPlayerName[l];
if (numplayers < 2) return;
tempnetbuf[0] = PACKET_CLIENT_INFO;
l = 1;
//null terminated player name to send
for (i=0; szPlayerName[i]; i++)
{
tempnetbuf[l++] = szPlayerName[i];
}
tempnetbuf[l++] = 0;
tempnetbuf[l++] = g_player[myconnectindex].ps->aim_mode = ud.mouseaiming;
tempnetbuf[l++] = g_player[myconnectindex].ps->auto_aim = ud.config.AutoAim;
tempnetbuf[l++] = g_player[myconnectindex].ps->weaponswitch = ud.weaponswitch;
tempnetbuf[l++] = g_player[myconnectindex].ps->palookup = g_player[myconnectindex].pcolor = ud.color;
tempnetbuf[l++] = g_player[myconnectindex].pteam = ud.team;
for (i=0; i<10; i++)
{
g_player[myconnectindex].wchoice[i] = g_player[0].wchoice[i];
tempnetbuf[l++] = (uint8_t)g_player[0].wchoice[i];
}
tempnetbuf[l++] = myconnectindex;
if (g_netClient)
{
enet_peer_send(g_netClientPeer, CHAN_GAMESTATE, enet_packet_create(&tempnetbuf[0], l, ENET_PACKET_FLAG_RELIABLE));
}
else if (g_netServer)
{
enet_host_broadcast(g_netServer, CHAN_GAMESTATE, enet_packet_create(&tempnetbuf[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;
}
////////////////////////////////////////////////////////////////////////////////
// Map Update Packets
netmapstate_t *Net_GetRevision(uint8_t revision, uint8_t cancreate)
{
assert(revision < NET_REVISIONS);
if (revision == 0)
{
return &g_mapStartState;
}
if (cancreate && g_mapStateHistory[revision] == NULL)
{
g_mapStateHistory[revision] = (netmapstate_t *) Xcalloc(1, sizeof(netmapstate_t));
Bmemset(g_mapStateHistory[revision], 0, sizeof(netmapstate_t));
}
return g_mapStateHistory[revision];
}
void Net_SendMapUpdate(void)
{
int32_t pi;
// uint32_t numdiff = 0;
uint32_t diffsize = 0;
uint32_t packetsize = 0;
// uint32_t prevMapDiff = g_netMapRevision;
if (!g_netServer || numplayers < 2)
{
return;
}
g_netMapRevision++;
if (g_netMapRevision >= NET_REVISIONS)
{
g_netMapRevision = 1;
}
Net_SaveMapState(Net_GetRevision(g_netMapRevision, 1));
// I use this to test server diffs without requiring a client.
//Net_FillMapDiff(prevMapDiff, g_netMapRevision);
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 (playeridx < 0 || playeridx >= MAXPLAYERS)
{
continue;
}
if (currentPeer->state != ENET_PEER_STATE_CONNECTED || !g_player[playeridx].playerquitflag)
{
continue;
}
if (g_player[playeridx].revision == g_netMapRevision)
{
continue;
}
Net_FillMapDiff(g_player[playeridx].revision, g_netMapRevision);
diffsize = 4 * sizeof(uint32_t);
diffsize += tempMapDiff.numActors * sizeof(netactor_t);
diffsize += tempMapDiff.numToDelete * sizeof(int32_t);
packetsize = LZ4_compress_limitedOutput((const char*)&tempMapDiff, (char*)&tempnetbuf[5], diffsize, tempnetbufsize - 5);
if (packetsize == 0)
return;
// apply header
tempnetbuf[0] = PACKET_MAP_STREAM;
// apply uncompressed size
B_BUF32(&tempnetbuf[1], diffsize);
packetsize += 5;
//initprintf("update packet size: %d - revision (%d->%d) - num actors: %d\n", packetsize, g_player[playeridx].revision, g_netMapRevision, tempMapDiff.numActors);
enet_peer_send(currentPeer, CHAN_GAMESTATE, enet_packet_create(tempnetbuf, packetsize, ENET_PACKET_FLAG_RELIABLE));
}
}
void Net_ReceiveMapUpdate(ENetEvent *event)
{
const uint8_t *pktBuf = (uint8_t *) event->packet->data;
uint32_t diffsize = B_UNBUF32(&pktBuf[1]);
LZ4_decompress_safe((const char*)&pktBuf[5], (char*)&tempMapDiff, diffsize, sizeof(netmapdiff_t));
Net_RestoreMapState();
//initprintf("Update packet size: %d - num actors: %d\n", event->packet->dataLength, tempMapDiff.numActors);
}
////////////////////////////////////////////////////////////////////////////////
// Map State
static int Net_CompareActors(const void *actor1, const void *actor2)
{
return ((netactor_t const *)actor1)->netIndex - ((netactor_t const *)actor2)->netIndex;
}
void Net_SaveMapState(netmapstate_t *save)
{
int32_t i;
int32_t statIndex;
if (save == NULL)
{
return;
}
save->numActors = 0;
for (statIndex = 0; g_netStatnums[statIndex] != MAXSTATUS; ++statIndex)
{
i = headspritestat[g_netStatnums[statIndex]];
for (; i >= 0; i = nextspritestat[i])
{
if (save->numActors >= NETMAXACTORS)
{
break;
}
if (Net_IsRelevantSprite(i) && sprite[i].statnum != STAT_NETALLOC)
{
netactor_t *tempActor = &save->actor[save->numActors];
Net_CopyToNet(i, tempActor);
save->numActors++;
}
}
}
qsort(save->actor, save->numActors, sizeof(netactor_t), &Net_CompareActors);
}
void Net_FillMapDiff(uint32_t fromRevision, uint32_t toRevision)
{
uint32_t fromIndex = 0;
uint32_t toIndex = 0;
netmapstate_t *fromState;
netmapstate_t *toState;
int32_t *deleteBuf;
netactor_t *actorBuf;
// First check to see if the tempMapDiff is already filled with the diff we want
if (tempMapDiff.fromRevision == fromRevision && tempMapDiff.toRevision == toRevision)
{
return;
}
tempMapDiff.fromRevision = fromRevision;
tempMapDiff.toRevision = toRevision;
tempMapDiff.numActors = 0;
tempMapDiff.numToDelete = 0;
actorBuf = (netactor_t *) tempMapDiff.data;
deleteBuf = (int32_t *) tempnetbuf;
fromState = Net_GetRevision(fromRevision, 0);
toState = Net_GetRevision(toRevision, 0);
assert(fromState != NULL);
assert(toState != NULL);
while (fromIndex < fromState->numActors || toIndex < toState->numActors)
{
const int32_t fromNet = fromState->actor[fromIndex].netIndex;
const int32_t toNet = toState->actor[toIndex].netIndex;
const int32_t fromValid = fromIndex < fromState->numActors;
const int32_t toValid = toIndex < toState->numActors;
if (toValid && (!fromValid || fromNet > toNet))
{
//initprintf("This actor is new: %d - %d\n", toState->actor[toIndex].netIndex, toState->actor[toIndex].sprite.picnum);
// Add the "to" data. It's a new actor.
memcpy(&actorBuf[tempMapDiff.numActors], &toState->actor[toIndex], sizeof(netactor_t));
tempMapDiff.numActors++;
toIndex++;
}
else if (fromValid && (!toValid || toNet > fromNet))
{
//initprintf("This actor is deleted: %d - %d\n", fromState->actor[fromIndex].netIndex, fromState->actor[fromIndex].sprite.picnum);
// Add the "fromNet" to the list of deleted actors
deleteBuf[tempMapDiff.numToDelete] = fromState->actor[fromIndex].netIndex;
tempMapDiff.numToDelete++;
fromIndex++;
}
else //if (fromNet == toNet)
{
assert(fromNet == toNet);
if (Net_ActorsAreDifferent(&fromState->actor[fromIndex], &toState->actor[toIndex]))
{
//initprintf("This actor is different: %d - %d\n", toState->actor[toIndex].netIndex, toState->actor[toIndex].sprite.picnum);
// Add the "to" data. It's changed.
memcpy(&actorBuf[tempMapDiff.numActors], &toState->actor[toIndex], sizeof(netactor_t));
tempMapDiff.numActors++;
}
fromIndex++;
toIndex++;
}
}
if (tempMapDiff.numToDelete > 0)
{
memcpy(&actorBuf[tempMapDiff.numActors], deleteBuf, tempMapDiff.numToDelete * sizeof(int32_t));
}
}
void Net_RestoreMapState()
{
int32_t i;
uint32_t j;
int32_t *deleteBuf;
netactor_t *actorBuf;
// Make sure we're using a diff from our current revision
if (tempMapDiff.fromRevision != g_player[myconnectindex].revision)
{
return;
}
g_player[myconnectindex].revision = tempMapDiff.toRevision;
actorBuf = (netactor_t *) tempMapDiff.data;
for (j = 0; j < tempMapDiff.numActors; ++j)
{
i = actorBuf[j].netIndex;
/*
if (Net_IsRelevantSprite(i))
{
initprintf("This actor is different: %d - %d\n", i, actorBuf[j].sprite.picnum);
}
else
{
initprintf("This actor is new: %d - %d\n", i, actorBuf[j].sprite.picnum);
}
*/
Net_CopyFromNet(i, &actorBuf[j]);
}
deleteBuf = (int32_t *) &actorBuf[tempMapDiff.numActors];
for (j = 0; j < tempMapDiff.numToDelete; ++j)
{
//initprintf("This actor is deleted: %d - %d\n", deleteBuf[j], sprite[deleteBuf[j]].picnum);
A_DeleteSprite(deleteBuf[j]);
}
}
void Net_CopyToNet(int32_t i, netactor_t *netactor)
{
netactor->netIndex = i;
netactor->picnum = actor[i].picnum;
netactor->ang = actor[i].ang;
netactor->extra = actor[i].extra;
netactor->owner = actor[i].owner;
netactor->movflag = actor[i].movflag;
netactor->tempang = actor[i].tempang;
netactor->timetosleep = actor[i].timetosleep;
netactor->flags = actor[i].flags;
netactor->floorz = actor[i].floorz;
netactor->lastvx = actor[i].lastvx;
netactor->lastvy = actor[i].lastvy;
netactor->lasttransport = actor[i].lasttransport;
netactor->actorstayput = actor[i].actorstayput;
//netactor->dispicnum = actor[i].dispicnum;
netactor->cgg = actor[i].cgg;
netactor->owner = actor[i].owner;
Bmemcpy(netactor->t_data, actor[i].t_data, 10 * sizeof(int32_t));
Bmemcpy(&netactor->sprite, &sprite[i], sizeof(spritetype));
}
void Net_CopyFromNet(int32_t i, netactor_t *netactor)
{
if (netactor->sprite.statnum == STAT_NETALLOC)
{
// Do nothing if it's going to be deleted
return;
}
else if (sprite[i].statnum == STAT_NETALLOC)
{
changespritestat(i, netactor->sprite.statnum);
do_insertsprite_at_headofsect(i, netactor->sprite.sectnum);
}
else
{
// These functions already check to see if the sprite already has the stat/sect value. No need to do it twice.
changespritestat(i, netactor->sprite.statnum);
changespritesect(i, netactor->sprite.sectnum);
}
actor[i].picnum = netactor->picnum;
actor[i].ang = netactor->ang;
actor[i].extra = netactor->extra;
actor[i].owner = netactor->owner;
actor[i].movflag = netactor->movflag;
actor[i].tempang = netactor->tempang;
actor[i].timetosleep = netactor->timetosleep;
actor[i].flags = netactor->flags;
actor[i].floorz = netactor->floorz;
actor[i].lastvx = netactor->lastvx;
actor[i].lastvy = netactor->lastvy;
actor[i].lasttransport = netactor->lasttransport;
actor[i].actorstayput = netactor->actorstayput;
actor[i].dispicnum = netactor->dispicnum;
actor[i].cgg = netactor->cgg;
actor[i].owner = netactor->owner;
Bmemcpy(actor[i].t_data, netactor->t_data, 10 * sizeof(int32_t));
Bmemcpy(&sprite[i], &netactor->sprite, sizeof(spritetype));
}
int32_t Net_ActorsAreDifferent(netactor_t *actor1, netactor_t *actor2)
{
int32_t allDiff;
int32_t finalDiff;
int32_t nonStandableDiff;
allDiff =
actor1->picnum != actor2->picnum ||
actor1->ang != actor2->ang ||
actor1->extra != actor2->extra ||
actor1->owner != actor2->owner ||
actor1->movflag != actor2->movflag ||
actor1->tempang != actor2->tempang ||
//actor1->timetosleep != actor2->timetosleep ||
actor1->flags != actor2->flags ||
actor1->floorz != actor2->floorz ||
actor1->lastvx != actor2->lastvx ||
actor1->lastvy != actor2->lastvy ||
actor1->lasttransport != actor2->lasttransport ||
actor1->actorstayput != actor2->actorstayput ||
//actor1->dispicnum != actor2->dispicnum ||
//actor1->cgg != actor2->cgg ||
actor1->sprite.owner != actor2->sprite.owner ||
actor1->sprite.statnum != actor2->sprite.statnum ||
actor1->sprite.sectnum != actor2->sprite.sectnum ||
actor1->sprite.picnum != actor2->sprite.picnum ||
//actor1->sprite.shade != actor2->sprite.shade ||
actor1->sprite.xrepeat != actor2->sprite.xrepeat ||
actor1->sprite.yrepeat != actor2->sprite.yrepeat;// ||
//actor1->sprite.ang != actor2->sprite.ang ||
nonStandableDiff =
actor1->sprite.x != actor2->sprite.x ||
actor1->sprite.y != actor2->sprite.y ||
actor1->sprite.z != actor2->sprite.z ||
actor1->sprite.xvel != actor2->sprite.xvel ||
actor1->sprite.yvel != actor2->sprite.yvel ||
actor1->sprite.zvel != actor2->sprite.zvel;
finalDiff = allDiff || (actor1->sprite.statnum != STAT_STANDABLE && nonStandableDiff);
return finalDiff;
}
int32_t Net_IsRelevantSprite(int32_t i)
{
if (g_netServer == NULL && g_netClient == NULL)
{
return 0;
}
else if (i < 0 || i >= MAXSPRITES)
{
return 0;
}
else
{
return Net_IsRelevantStat(sprite[i].statnum);
}
}
int32_t Net_IsRelevantStat(int32_t stat)
{
int32_t statIndex;
if (g_netServer == NULL && g_netClient == NULL)
{
return 0;
}
for (statIndex = 0; g_netStatnums[statIndex] != MAXSTATUS; ++statIndex)
{
if (g_netStatnums[statIndex] == stat)
{
return 1;
}
}
return 0;
}
int32_t Net_InsertSprite(int32_t sect, int32_t stat)
{
int32_t i = headspritestat[STAT_NETALLOC];
// This means that we've run out of server-side actors
if (i == -1)
{
return -1;
}
changespritestat(i, stat);
do_insertsprite_at_headofsect(i, sect);
return i;
}
void Net_DeleteSprite(int32_t spritenum)
{
if (sprite[spritenum].statnum == STAT_NETALLOC)
{
return;
}
changespritestat(spritenum, STAT_NETALLOC);
do_deletespritesect(spritenum);
sprite[spritenum].sectnum = MAXSECTORS;
}
extern void Gv_RefreshPointers(void);
////////////////////////////////////////////////////////////////////////////////
// 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, int32_t type)
{
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;
}
if (type == PACKET_MASTER_TO_SLAVE)
{
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;
uint8_t *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;
}
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));
}
void Net_ReceiveServerUpdate(ENetEvent *event)
{
int32_t i;
uint8_t *updatebuf;
// int8_t numupdates;
serverupdate_t serverupdate;
serverplayerupdate_t playerupdate;
if (((event->packet->dataLength - sizeof(serverupdate_t)) % sizeof(serverplayerupdate_t)) != 0)
{
return;
}
updatebuf = (uint8_t *) 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, PACKET_MASTER_TO_SLAVE);
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;
}
}
////////////////////////////////////////////////////////////////////////////////
// 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;
if (playeridx < 0 || playeridx >= MAXPLAYERS)
{
return;
}
g_player[playeridx].revision = update.revision;
inputfifo[0][playeridx] = update.nsyn;
Net_ExtractPlayerUpdate(&update.player, PACKET_SLAVE_TO_MASTER);
}
////////////////////////////////////////////////////////////////////////////////
// Message Packets
void Net_SendMessage(void)
{
int32_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(recbuf," %d - %s",i+1,g_player[i].user_name);
minitextshade((320>>1)-40-6+1,j+1,recbuf,26,0,2+8+16);
minitext((320>>1)-40-6,j,recbuf,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
{
hitstate = I_EnterText(typebuf, 120, 0);
if (ud.screen_size > 1) j = (200-45)<<16;
else j = (200-8)<<16;
if (xdim >= 640 && ydim >= 480)
j = scale(j,ydim,200);
i = textsc(5<<16);
{
const vec2_t dim = G_ScreenTextSize(STARTALPHANUM, i, 0, textsc(65536), 0, typebuf, 8|16|ROTATESPRITE_FULL16, 5<<16, 7<<16, 0, 0, TEXT_LITERALESCAPE, 0, 0, xdim-1, ydim-1);
l = i + dim.x + scale(textsc((tilesiz[SPINNINGNUKEICON].x+2)<<13), ydim, 200);
}
if (l >= (xdim<<16))
i -= (l - (xdim<<16));
{
const vec2_t dim = G_ScreenText(STARTALPHANUM, i, j, textsc(65536), 0, 0, typebuf, 1, 0, 8|16|ROTATESPRITE_FULL16, 0, 5<<16, 7<<16, 0, 0, TEXT_YCENTER|TEXT_LITERALESCAPE, 0, 0, xdim-1, ydim-1);
i += dim.x + scale(textsc((tilesiz[SPINNINGNUKEICON].x+1)<<12), ydim, 200);
}
rotatesprite_fs(i, j, textsc(32768), 0, SPINNINGNUKEICON+((totalclock>>3)%7), 4-(sintable[(totalclock<<4)&2047]>>11), 0, 0);
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_NotifyNewGame()
{
int32_t i;
int32_t statIndex;
int32_t numSprites = 0;
int32_t numSpritesToNetAlloc = 0;
if (!g_netServer && !g_netClient)
{
return;
}
// Grab the total number of sprites at level load
for (statIndex = 0; statIndex < MAXSTATUS; ++statIndex)
{
i = headspritestat[statIndex];
for (; i >= 0; i = nextspritestat[i])
{
numSprites++;
}
}
// Take half of the leftover sprites and allocate them for the network's nefarious purposes.
numSpritesToNetAlloc = (MAXSPRITES - numSprites) / 2;
for (i = 0; i < numSpritesToNetAlloc; ++i)
{
int32_t newSprite = insertspritestat(STAT_NETALLOC);
sprite[newSprite].sectnum = MAXSECTORS;
Numsprites++;
}
Net_SaveMapState(&g_mapStartState);
}
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));
}
}
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)
{
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_ReceiveMapVoteInitiate(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,
g_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_ReceiveMapVote(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)
{
// 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_ReceiveMapVoteCancel(uint8_t *pbuf)
{
// int32_t 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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