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source: code/branches/bindermFS16/src/libraries/network/LANDiscovery.cc @ 11139

Last change on this file since 11139 was 11071, checked in by landauf, 9 years ago

merged branch cpp11_v3 back to trunk

  • Property svn:eol-style set to native
File size: 4.9 KB
Line 
1/*
2 *   ORXONOX - the hottest 3D action shooter ever to exist
3 *                    > www.orxonox.net <
4 *
5 *
6 *   License notice:
7 *
8 *   This program is free software; you can redistribute it and/or
9 *   modify it under the terms of the GNU General Public License
10 *   as published by the Free Software Foundation; either version 2
11 *   of the License, or (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21 *
22 *   Author:
23 *      Oliver Scheuss
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29#include "LANDiscovery.h"
30
31#include <enet/enet.h>
32#include <cstring>
33
34#include "core/CoreIncludes.h"
35#include "core/singleton/ScopedSingletonIncludes.h"
36
37
38namespace orxonox
39{
40  ManageScopedSingleton(LANDiscovery, ScopeID::GRAPHICS, false);
41
42  LANDiscovery::LANDiscovery()
43  {
44    this->host_ = enet_host_create(nullptr, 10, 0, 0, 0 );
45    if ( this->host_ == nullptr )
46        orxout(internal_error, context::network) << "LANDiscovery: host_ == nullptr" << endl;
47  }
48
49  LANDiscovery::~LANDiscovery()
50  {
51    if (this->host_ != nullptr)
52      enet_host_destroy(this->host_);
53  }
54
55  void LANDiscovery::discover()
56  {
57    this->servers_.clear();
58    ENetPeer* peer;
59    ENetAddress address;
60    memset(&address, 0, sizeof(ENetAddress));
61    address.port = LAN_DISCOVERY_PORT;
62
63    /* TODO: check for availability of each protocol */
64    /* IPv4 */
65    address.host = ENET_HOST_BROADCAST;
66    peer = enet_host_connect(this->host_, &address, 0, 0);
67    if (peer == nullptr)
68        orxout(internal_error, context::network) << "Could not send LAN discovery to IPv4 Broadcast." << endl;
69
70    /* IPv6 */
71    enet_address_set_host(&address, "ff02::1"); // TODO: use a multicast group
72    peer = enet_host_connect(this->host_, &address, 0, 0);
73    if (peer == nullptr)
74        orxout(internal_error, context::network) << "Could not send LAN discovery to IPv6 Multicast." << endl;
75
76    ENetEvent event;
77    while( enet_host_service(this->host_, &event, 1000 ) )
78    {
79      switch( event.type )
80      {
81        case ENET_EVENT_TYPE_CONNECT:
82        {
83          orxout(verbose, context::network) << "Received LAN discovery connect from server " << event.peer->host->receivedAddress << endl;
84          ENetPacket* packet = enet_packet_create(LAN_DISCOVERY_MESSAGE, strlen(LAN_DISCOVERY_MESSAGE)+1, ENET_PACKET_FLAG_RELIABLE);
85          enet_peer_send(event.peer, 0, packet);
86          break;
87        }
88        case ENET_EVENT_TYPE_RECEIVE:
89          {
90            packet::ServerInformation info(&event);
91            std::string payload = info.getServerName();
92            info.setServerName(payload.substr(0,payload.length()-2));
93            info.setClientNumber( Ogre::StringConverter::parseInt(payload.substr(payload.length()-1)));
94            orxout(internal_info, context::network) << "Received LAN discovery server information; Name: " << info.getServerName() << ", Address: " << info.getServerIP() << ", Players: " << info.getClientNumber() << ", RTT: " << info.getServerRTT() << endl;
95            std::vector<packet::ServerInformation>::iterator it;
96            for( it=this->servers_.begin(); it!=this->servers_.end(); ++it )
97            {
98              if( (*it).getServerIP() == info.getServerIP() )
99                break;
100            }
101            if( it==this->servers_.end() )
102              this->servers_.push_back(info);
103          }
104//           enet_address_get_host_ip(&event.peer->address, buffer, buflen );
105//           serverIPs.push_back(std::string(buffer));
106          break;
107        default:
108          break;
109      }
110    }
111  }
112
113  std::string LANDiscovery::getServerListItemName(unsigned int index)
114  {
115    if( index >= this->servers_.size() )
116      return BLANKSTRING;
117    else
118      return this->servers_[index].getServerName();
119  }
120
121  std::string LANDiscovery::getServerListItemIP(unsigned int index)
122  {
123    if( index >= this->servers_.size() )
124      return BLANKSTRING;
125    else
126      return this->servers_[index].getServerIP();
127  }
128
129  std::string LANDiscovery::getServerListItemRTT(unsigned int index)
130  {
131    if( index >= this->servers_.size() )
132      return BLANKSTRING;
133    else{
134      uint32_t serverrtt = this->servers_[index].getServerRTT();
135      return Ogre::StringConverter::toString(serverrtt);
136    }
137  }
138
139  std::string LANDiscovery::getServerListItemPlayerNumber(unsigned int index)
140  {
141    if( index >= this->servers_.size() )
142      return BLANKSTRING;
143    else{
144      int playerNumber = this->servers_[index].getClientNumber();
145      return Ogre::StringConverter::toString(playerNumber);
146    }
147  }
148} // namespace orxonox
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