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flightgear/src/Network/multiplay.hxx

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Add multiplayer support from Duncan McCreanor and Diarmuid Tyson
2003-03-19 20:45:09 +00:00
// multiplay.hxx -- protocol object for multiplay in Flightgear
//
// Written by Diarmuid Tyson, started February 2003.
// diarmuid.tyson@airservicesaustralia.com
//
Vivian Meazza: This patch is a combined effort by Gregor Richards, Oliver Schroeder, and Vivian Meazza (and code cleanups and improvements by Erik Hofman). It corrects the bug in which a Multiplayer model responds to local inputs, and the view number bug which caused certain aircraft to appear as cockpit only models. It passes remote properties over the net, and all major control surfaces and gear are now animated correctly, providing that the local ~model.xml file contains no leading "/" in the <property></property> data entries. MP objects are now extrapolated using 1st and 2nd derivatives to make their movement appear more smooth. The sim is now halted while a new client joins the net. Known problems with MP are non-display of the remote client under certain circumstances of starting/resetting, and a freeze on starting. These bugs are long standing, and are not addressed by this patch. Special thanks must go to AJ Macleod for his patient testing of this patch over many evenings. We have also moved part of multiplayer into AIModels as part of the ongoing development of MP.
2006-02-09 12:29:05 +00:00
// With additions by Vivian Meazza, January 2006
//
Add multiplayer support from Duncan McCreanor and Diarmuid Tyson
2003-03-19 20:45:09 +00:00
// Copyright (C) 2003 Airservices Australia
//
// 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
new FSF address
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Add multiplayer support from Duncan McCreanor and Diarmuid Tyson
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//
#ifndef _FG_MULTIPLAY_HXX
#define _FG_MULTIPLAY_HXX
#define FG_MULTIPLAY_HID "$Id$"
Moved src/Model/loader.[ch]xx and src/Model/model.[ch]xx to simgear/scene/model/
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#include <simgear/compiler.h>
Add multiplayer support from Duncan McCreanor and Diarmuid Tyson
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#include STL_STRING
Mathias Fröhlich: The new multiplayer patch with an extension to transmit some properties with the base package. The properties are transmitted in a way that will not immediately brake the packet format if we need new ones. Even if the maxmimum number needs to be limited somehow, that format might work well until we have an improoved packet format which is even more compact and that does not require to retransmit redundant information with each packet. That part is relatively fresh and based on that what Oliver provides on his multiplayer server web page. The properties are transferred to the client and I have modified the seahawks rudder animation property to use a relative property path to verify that it works appart from the fact that you can see it changing in the property browser. The movement is still a bit jerky, but that can be fixed/tuned later without again braking the packet format.
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#include <simgear/props/props.hxx>
Moved src/Model/loader.[ch]xx and src/Model/model.[ch]xx to simgear/scene/model/
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#include <simgear/scene/model/model.hxx>
Add multiplayer support from Duncan McCreanor and Diarmuid Tyson
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#include <Main/globals.hxx>
#include <Main/fg_props.hxx>
#include <Model/acmodel.hxx>
In the process of changing, adding and removing files the last few years there was the situation where four directories contained jst two files, of which three directories were aircraft related, and one directory contained test code from Curt that might be better of in SimGear anyhow. This is just a patch to move a bunch of files to new locations. In case of local changes to any of them you can do the following: move replay.[ch]xx from src/Replay to src/Aircraft move control.[ch]xx from src/Control to src/Aircraft move ssgEntityArray.[ch]xx from src/Objects to simgear/screen In addition it has been decided only to use .[ch]xx files in all directories unless it's contained within an FDM specific directory, in which case the author is free to do whatever (s)he wants. In this repspect the following files have been renamed in src/Multiplayer: tiny_xdr.[ch]pp has become tiny_xdr.[ch]xx multiplaymgr.[ch]pp has become multiplaymgr.[ch]xx
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#include <MultiPlayer/multiplaymgr.hxx>
Add multiplayer support from Duncan McCreanor and Diarmuid Tyson
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Moved src/Model/loader.[ch]xx and src/Model/model.[ch]xx to simgear/scene/model/
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#include "protocol.hxx"
SG_USING_STD(string);
Add multiplayer support from Duncan McCreanor and Diarmuid Tyson
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/****************************************************************
* @version $Id$
*
* Description: FGMultiplay is an FGProtocol object used as the basic
* interface for the multiplayer code into FlightGears generic IO
* subsystem. It only implements the basic FGProtocol methods: open(),
* process() and close(). It does not use Sim Gear's IO channels, as
* the MultiplayMgrs creates their own sockets through plib.
*
* It will set up it's direction and rate protocol properties when
* created. Subsequent calls to process will prompt the
* MultiplayMgr to either send or receive data over the network.
*
******************************************************************/
class FGMultiplay : public FGProtocol {
public:
/** Constructor */
FGMultiplay (const string &dir, const int rate, const string &host, const int port);
/** Destructor. */
~FGMultiplay ();
Vivian Meazza: This patch is a combined effort by Gregor Richards, Oliver Schroeder, and Vivian Meazza (and code cleanups and improvements by Erik Hofman). It corrects the bug in which a Multiplayer model responds to local inputs, and the view number bug which caused certain aircraft to appear as cockpit only models. It passes remote properties over the net, and all major control surfaces and gear are now animated correctly, providing that the local ~model.xml file contains no leading "/" in the <property></property> data entries. MP objects are now extrapolated using 1st and 2nd derivatives to make their movement appear more smooth. The sim is now halted while a new client joins the net. Known problems with MP are non-display of the remote client under certain circumstances of starting/resetting, and a freeze on starting. These bugs are long standing, and are not addressed by this patch. Special thanks must go to AJ Macleod for his patient testing of this patch over many evenings. We have also moved part of multiplayer into AIModels as part of the ongoing development of MP.
2006-02-09 12:29:05 +00:00
/** Enables the FGMultiplay object. */
Add multiplayer support from Duncan McCreanor and Diarmuid Tyson
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bool open();
Mathias Fröhlich: The new multiplayer patch with an extension to transmit some properties with the base package. The properties are transmitted in a way that will not immediately brake the packet format if we need new ones. Even if the maxmimum number needs to be limited somehow, that format might work well until we have an improoved packet format which is even more compact and that does not require to retransmit redundant information with each packet. That part is relatively fresh and based on that what Oliver provides on his multiplayer server web page. The properties are transferred to the client and I have modified the seahawks rudder animation property to use a relative property path to verify that it works appart from the fact that you can see it changing in the property browser. The movement is still a bit jerky, but that can be fixed/tuned later without again braking the packet format.
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/** Tells the multiplayer_mgr to send/receive data.
*/
Add multiplayer support from Duncan McCreanor and Diarmuid Tyson
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bool process();
Mathias Fröhlich: The new multiplayer patch with an extension to transmit some properties with the base package. The properties are transmitted in a way that will not immediately brake the packet format if we need new ones. Even if the maxmimum number needs to be limited somehow, that format might work well until we have an improoved packet format which is even more compact and that does not require to retransmit redundant information with each packet. That part is relatively fresh and based on that what Oliver provides on his multiplayer server web page. The properties are transferred to the client and I have modified the seahawks rudder animation property to use a relative property path to verify that it works appart from the fact that you can see it changing in the property browser. The movement is still a bit jerky, but that can be fixed/tuned later without again braking the packet format.
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/** Closes the multiplayer_mgr.
*/
Add multiplayer support from Duncan McCreanor and Diarmuid Tyson
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bool close();
private:
Mathias Fröhlich: The new multiplayer patch with an extension to transmit some properties with the base package. The properties are transmitted in a way that will not immediately brake the packet format if we need new ones. Even if the maxmimum number needs to be limited somehow, that format might work well until we have an improoved packet format which is even more compact and that does not require to retransmit redundant information with each packet. That part is relatively fresh and based on that what Oliver provides on his multiplayer server web page. The properties are transferred to the client and I have modified the seahawks rudder animation property to use a relative property path to verify that it works appart from the fact that you can see it changing in the property browser. The movement is still a bit jerky, but that can be fixed/tuned later without again braking the packet format.
2006-02-17 09:43:33 +00:00
// Map between the property id's from the multiplayers network packets
// and the property nodes
typedef std::map<unsigned, SGSharedPtr<SGPropertyNode> > PropertyMap;
PropertyMap mPropertyMap;
Add multiplayer support from Duncan McCreanor and Diarmuid Tyson
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};
Mathias Fröhlich: The new multiplayer patch with an extension to transmit some properties with the base package. The properties are transmitted in a way that will not immediately brake the packet format if we need new ones. Even if the maxmimum number needs to be limited somehow, that format might work well until we have an improoved packet format which is even more compact and that does not require to retransmit redundant information with each packet. That part is relatively fresh and based on that what Oliver provides on his multiplayer server web page. The properties are transferred to the client and I have modified the seahawks rudder animation property to use a relative property path to verify that it works appart from the fact that you can see it changing in the property browser. The movement is still a bit jerky, but that can be fixed/tuned later without again braking the packet format.
2006-02-17 09:43:33 +00:00
Add multiplayer support from Duncan McCreanor and Diarmuid Tyson
2003-03-19 20:45:09 +00:00
#endif // _FG_MULTIPLAY_HXX
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