1 // multiplay.cxx -- protocol object for multiplay in Flightgear
3 // Written by Diarmuid Tyson, started February 2003.
4 // diarmuid.tyson@airservicesaustralia.com
6 // Copyright (C) 2003 Airservices Australia
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #include <simgear/compiler.h>
33 #include <simgear/debug/logstream.hxx>
34 #include <simgear/scene/model/placement.hxx>
35 #include <simgear/scene/model/placementtrans.hxx>
37 #include <Scenery/scenery.hxx>
39 #include "multiplay.hxx"
44 // These constants are provided so that the ident command can list file versions.
45 const char sFG_MULTIPLAY_BID[] = "$Id$";
46 const char sFG_MULTIPLAY_HID[] = FG_MULTIPLAY_HID;
49 /******************************************************************
51 * Description: Constructor. Initialises the protocol and stores
52 * host and port information.
53 ******************************************************************/
54 FGMultiplay::FGMultiplay (const string &dir, const int rate, const string &host, const int port) {
60 if (get_direction() == SG_IO_IN) {
62 fgSetInt("/sim/multiplay/rxport", port);
63 fgSetString("/sim/multiplay/rxhost", host.c_str());
65 } else if (get_direction() == SG_IO_OUT) {
67 fgSetInt("/sim/multiplay/txport", port);
68 fgSetString("/sim/multiplay/txhost", host.c_str());
75 /******************************************************************
77 * Description: Destructor.
78 ******************************************************************/
79 FGMultiplay::~FGMultiplay () {
83 /******************************************************************
85 * Description: Enables the protocol.
86 ******************************************************************/
87 bool FGMultiplay::open() {
90 SG_LOG( SG_IO, SG_ALERT, "This shouldn't happen, but the channel "
91 << "is already in use, ignoring" );
101 /******************************************************************
103 * Description: Prompts the multiplayer mgr to either send
104 * or receive data over the network
105 ******************************************************************/
106 bool FGMultiplay::process() {
108 if (get_direction() == SG_IO_IN) {
110 globals->get_multiplayer_mgr()->ProcessData();
112 } else if (get_direction() == SG_IO_OUT) {
115 globals->get_aircraft_model()->get3DModel()->getTransform()->getTransform(posTrans);
116 Point3D center = globals->get_scenery()->get_center();
117 sgdVec3 PlayerPosition;
118 sgdSetVec3(PlayerPosition, posTrans[3][0] + center[0],
119 posTrans[3][1] + center[1], posTrans[3][2] + center[2]);
120 sgQuat PlayerOrientation;
121 sgMatrixToQuat(PlayerOrientation, posTrans);
123 globals->get_multiplayer_mgr()->SendMyPosition(PlayerOrientation, PlayerPosition);
131 /******************************************************************
133 * Description: Closes the multiplayer mgrs to stop any further
135 ******************************************************************/
136 bool FGMultiplay::close() {
138 if (get_direction() == SG_IO_IN) {
140 globals->get_multiplayer_mgr()->Close();
142 } else if (get_direction() == SG_IO_OUT) {
144 // globals->get_multiplayer_mgr()->Close();