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/* -*- C++ -*- */
/*
GAV - Gpl Arcade Volleyball
Copyright (C) 2002
GAV team (http://sourceforge.net/projects/gav/)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef NONET
#include "NetServer.h"
#include "Player.h"
using namespace std;
int NetServer::StartServer(int port) {
/* open the socket */
mySock = SDLNet_UDP_Open((Uint16)port);
if(!mySock) {
fprintf(stderr, "SDLNet_UDP_Open: %s\n", SDLNet_GetError());
return -1;
}
return 0;
}
int NetServer::ComputePlayerID(char id) {
char tm ,pl;
tm = (id & NET_TEAM_LEFT)?0:1;
pl = id & 0x3F;
return (2 * pl + tm);
}
int NetServer::WaitClients(int nclients) {
IPaddress * ipa;
//char nleft = 0;
//char nright = 0;
char * id;
int i;
bool inserted = false;
char pl;
_nclients = nclients;
while ( !inserted ) { // (nright + nleft) != nclients) {
inserted = false;
if (SDLNet_UDP_Recv(mySock, packetRegister) != 0) {
ipa = (IPaddress*)malloc(sizeof(IPaddress));
memcpy(ipa, &(packetRegister->address), sizeof(IPaddress));
id = &(((net_register_t*)(packetRegister->data))->id);
if (*id & NET_TEAM_LEFT) {
for (i = 0; (i < configuration.left_nplayers) && !inserted; i++)
if ((configuration.left_players[i] == PLAYER_COMPUTER) &&
!_players[2*i]) {
inserted = true;
pl = (char)i;
}
if (inserted) {
*id |= pl;
//nleft++;
} else
continue;
} else if (*id & NET_TEAM_RIGHT) {
for (i = 0; (i < configuration.right_nplayers) && !inserted; i++)
if ((configuration.right_players[i] == PLAYER_COMPUTER) &&
!_players[2*i+1]) {
inserted = true;
pl = (char)i;
}
if (inserted) {
*id |= pl;
//nright++;
} else
continue;
}
_players[ComputePlayerID(*id)] = 1;
clientIP.push_back(ipa);
/* send the ID back to client */
((net_register_t*)(packetRegister->data))->nplayers_l =
configuration.left_nplayers;
((net_register_t*)(packetRegister->data))->nplayers_r =
configuration.right_nplayers;
((net_register_t*)(packetRegister->data))->bgBig =
configuration.bgBig;
((net_register_t*)(packetRegister->data))->winning_score =
configuration.winning_score;
SDLNet_UDP_Send(mySock, -1, packetRegister);
} else SDL_Delay(500);
}
return (nclients-1);
}
int NetServer::SendSnapshot(Team *tleft, Team *tright, Ball * ball) {
unsigned int i;
net_game_snapshot_t * snap = (net_game_snapshot_t *)(packetSnap->data);
std::vector<Player *> plv;
snap->scorel = tleft->getScore();
snap->scorer = tright->getScore();
/* fill the left team informations */
plv = tleft->players();
for (i = 0; i < plv.size(); i++) {
(snap->teaml)[i].x = plv[i]->x();
(snap->teaml)[i].y = plv[i]->y();
(snap->teaml)[i].frame = plv[i]->state();
}
/* fill the right team informations */
plv = tright->players();
for (i = 0; i < plv.size(); i++) {
(snap->teamr)[i].x = plv[i]->x();
(snap->teamr)[i].y = plv[i]->y();
(snap->teamr)[i].frame = plv[i]->state();
}
/* fill the ball informations */
(snap->ball).x = ball->x();
(snap->ball).y = ball->y();
(snap->ball).frame = ball->frame();
/* send the snapshot to all clients */
for (i = 0; i < clientIP.size(); i++) {
packetSnap->address = *(clientIP[i]);
SDLNet_UDP_Send(mySock, -1, packetSnap);
}
return 0;
}
int NetServer::ReceiveCommand(int * player, char * cmd) {
if (SDLNet_UDP_Recv(mySock, packetCmd) != 0) {
net_command_t * c = (net_command_t*)(packetCmd->data);
*player = ComputePlayerID(c->id);
*cmd = c->command;
return 0;
}
return -1;
}
int NetServer::isRemote(int pl) {
return _players[pl];
}
#endif
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