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source: code/trunk/src/libraries/network/LANDiscoverable.cc @ 7178

Last change on this file since 7178 was 7163, checked in by dafrick, 14 years ago

Merged presentation3 branch into trunk.

File size: 2.9 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 "LANDiscoverable.h"
30
31#include "NetworkPrereqs.h"
32#include "packet/ServerInformation.h"
33
34#include <enet/enet.h>
35#include <cassert>
36#include <cstring>
37
38namespace orxonox
39{
40  const char* LAN_DISCOVERY_MESSAGE = "Orxonox Client";
41  const char* LAN_DISCOVERY_ACK     = "Orxonox Server Ack";
42
43  LANDiscoverable::LANDiscoverable()
44  {
45    this->host_ = 0;
46    this->bActive_ = false;
47    this->setActivity(true);
48  }
49
50  LANDiscoverable::~LANDiscoverable()
51  {
52    if( this->host_ )
53    {
54      enet_host_destroy( this->host_ );
55      assert( this->bActive_ );
56    }
57  }
58
59  void LANDiscoverable::setActivity(bool bActive)
60  {
61    if( bActive == this->bActive_ )        // no change
62      return;
63   
64    if( bActive )
65    {
66      ENetAddress bindAddress = { ENET_HOST_ANY, LAN_DISCOVERY_PORT };
67      assert( this->host_ == 0 );
68      this->host_ = enet_host_create( &bindAddress, 10, 0, 0 );
69    }
70    else
71    {
72      enet_host_destroy( this->host_ );
73      this->host_ = 0;
74    }
75      this->bActive_ = bActive;
76  }
77
78  void LANDiscoverable::update()
79  {
80    ENetEvent event;
81   
82    if( this->bActive_==false )
83      return;
84    assert(this->host_);
85   
86    while( enet_host_service( this->host_, &event, 0 ) > 0 )
87    {
88      switch(event.type)
89      {
90        case ENET_EVENT_TYPE_CONNECT:
91        case ENET_EVENT_TYPE_DISCONNECT:
92        case ENET_EVENT_TYPE_NONE:
93          break;
94        case ENET_EVENT_TYPE_RECEIVE:
95          if( strcmp( LAN_DISCOVERY_MESSAGE, (char*)event.packet->data ) == 0 )      // check for a suitable orxonox client
96          {
97            packet::ServerInformation info;
98            info.setServerName("Orxonox Server");
99            info.send(event.peer);
100//             ENetPacket* packet = enet_packet_create( LAN_DISCOVERY_ACK, strlen(LAN_DISCOVERY_ACK)+1, ENET_PACKET_FLAG_RELIABLE );
101//             enet_peer_send(event.peer, 0, packet );
102            enet_host_flush(this->host_);
103          }
104          break;
105      }
106    }
107  }
108
109}
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