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source: code/trunk/src/libraries/network/GamestateManager.cc @ 5857

Last change on this file since 5857 was 5781, checked in by rgrieder, 15 years ago

Reverted trunk again. We might want to find a way to delete these revisions again (x3n's changes are still available as diff in the commit mails).

  • Property svn:eol-style set to native
File size: 8.8 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//
30// C++ Implementation: GameStateManager
31//
32// Description:
33//
34//
35// Author:  Oliver Scheuss, (C) 2007
36//
37// Copyright: See COPYING file that comes with this distribution
38//
39//
40
41#include "GamestateManager.h"
42
43#include <cassert>
44#include <queue>
45// #include <boost/thread/mutex.hpp>
46
47#include "util/Debug.h"
48#include "core/Executor.h"
49#include "core/ThreadPool.h"
50#include "ClientInformation.h"
51#include "packet/Acknowledgement.h"
52#include "packet/Gamestate.h"
53#include "synchronisable/NetworkCallbackManager.h"
54#include "TrafficControl.h"
55
56namespace orxonox
57{
58  GamestateManager::GamestateManager() :
59  reference(0), id_(0)
60  {
61    trafficControl_ = new TrafficControl();
62//     threadMutex_ = new boost::mutex();
63//     threadPool_ = new ThreadPool();
64  }
65
66  GamestateManager::~GamestateManager()
67  {
68    if( this->reference )
69        delete this->reference;std::map<unsigned int, packet::Gamestate*>::iterator it;
70    for( it = gamestateQueue.begin(); it != gamestateQueue.end(); ++it )
71      delete (*it).second;
72    std::map<unsigned int, std::map<unsigned int, packet::Gamestate*> >::iterator it1;
73    std::map<unsigned int, packet::Gamestate*>::iterator it2;
74    for( it1 = gamestateMap_.begin(); it1 != gamestateMap_.end(); ++it1 )
75    {
76      for( it2 = it1->second.begin(); it2 != it1->second.end(); ++it2 )
77        delete (*it2).second;
78    }
79    delete this->trafficControl_;
80//     delete this->threadMutex_;
81//     delete this->threadPool_;
82  }
83
84  bool GamestateManager::update(){
85//     cleanup();
86    return getSnapshot();
87  }
88
89  bool GamestateManager::add(packet::Gamestate *gs, unsigned int clientID){
90    assert(gs);
91    std::map<unsigned int, packet::Gamestate*>::iterator it = gamestateQueue.find(clientID);
92    if(it!=gamestateQueue.end()){
93      // delete obsolete gamestate
94      delete it->second;
95    }
96    gamestateQueue[clientID] = gs;
97    return true;
98  }
99
100  bool GamestateManager::processGamestates(){
101    if( this->gamestateQueue.empty() )
102        return true;
103    std::map<unsigned int, packet::Gamestate*>::iterator it;
104    // now push only the most recent gamestates we received (ignore obsolete ones)
105    for(it = gamestateQueue.begin(); it!=gamestateQueue.end(); it++){
106      bool b = processGamestate(it->second);
107      assert(b);
108      delete it->second;
109    }
110    // now clear the queue
111    gamestateQueue.clear();
112    //and call all queued callbacks
113    NetworkCallbackManager::callCallbacks();
114    return true;
115  }
116
117
118  bool GamestateManager::getSnapshot(){
119    if ( reference != 0 )
120      delete reference;
121    reference = new packet::Gamestate();
122    if(!reference->collectData(++id_, 0x1)){ //we have no data to send
123      delete reference;
124      reference=0;
125    }
126    return true;
127  }
128 
129  void GamestateManager::sendGamestates()
130  {
131    ClientInformation *temp = ClientInformation::getBegin();
132    std::queue<packet::Gamestate*> clientGamestates;
133    while(temp != NULL){
134      if( !(temp->getSynched()) ){
135        COUT(5) << "Server: not sending gamestate" << std::endl;
136        temp=temp->next();
137        if(!temp)
138          break;
139        continue;
140      }
141      COUT(4) << "client id: " << temp->getID() << " RTT: " << temp->getRTT() << " loss: " << temp->getPacketLoss() << std::endl;
142      COUT(5) << "Server: doing gamestate gamestate preparation" << std::endl;
143      int cid = temp->getID(); //get client id
144     
145      unsigned int gID = temp->getGamestateID();
146      if(!reference)
147        return;
148     
149      packet::Gamestate *client=0;
150      if(gID != GAMESTATEID_INITIAL){
151        assert(gamestateMap_.find(cid)!=gamestateMap_.end());
152        std::map<unsigned int, packet::Gamestate*>::iterator it = gamestateMap_[cid].find(gID);
153        if(it!=gamestateMap_[cid].end())
154        {
155          client = it->second;
156        }
157      }
158     
159      clientGamestates.push(0);
160      finishGamestate( cid, &clientGamestates.back(), client, reference );
161      //FunctorMember<GamestateManager>* functor =
162//       ExecutorMember<GamestateManager>* executor = createExecutor( createFunctor(&GamestateManager::finishGamestate) );
163//       executor->setObject(this);
164//       executor->setDefaultValues( cid, &clientGamestates.back(), client, reference );
165//       (*static_cast<Executor*>(executor))();
166//       this->threadPool_->passFunction( executor, true );
167//       (*functor)( cid, &(clientGamestates.back()), client, reference );
168     
169      temp = temp->next();
170    }
171   
172//     threadPool_->synchronise();
173   
174    while( !clientGamestates.empty() )
175    {
176      if(clientGamestates.front())
177        clientGamestates.front()->send();
178      clientGamestates.pop();
179    }
180  }
181
182
183  void GamestateManager::finishGamestate( unsigned int clientID, packet::Gamestate** destgamestate, packet::Gamestate* base, packet::Gamestate* gamestate ) {
184    //why are we searching the same client's gamestate id as we searched in
185    //Server::sendGameState?
186    // save the (undiffed) gamestate in the clients gamestate map
187    //chose wheather the next gamestate is the first or not
188   
189    packet::Gamestate *gs = gamestate->doSelection(clientID, 20000);
190//     packet::Gamestate *gs = new packet::Gamestate(*gamestate);
191//     packet::Gamestate *gs = new packet::Gamestate();
192//     gs->collectData( id_, 0x1 );
193//     this->threadMutex_->lock();
194    gamestateMap_[clientID][gamestate->getID()]=gs;
195//     this->threadMutex_->unlock();
196   
197    if(base)
198    {
199       
200//       COUT(3) << "diffing" << std::endl;
201//       packet::Gamestate* gs1  = gs;
202      packet::Gamestate *diffed = gs->diff(base);
203      //packet::Gamestate *gs2 = diffed->undiff(gs);
204//       assert(*gs == *gs2);
205      gs = diffed;
206//       packet::Gamestate* gs2 = gs->undiff(client);
207//       gs = new packet::Gamestate(*gs);
208//       assert(*gs1==*gs2);
209    }
210    else{
211      gs = new packet::Gamestate(*gs);
212    }
213   
214   
215    bool b = gs->compressData();
216    assert(b);
217//     COUT(4) << "sending gamestate with id " << gs->getID();
218//     if(gamestate->isDiffed())
219//     COUT(4) << " and baseid " << gs->getBaseID() << endl;
220//     else
221//     COUT(4) << endl;
222    gs->setClientID(clientID);
223    *destgamestate = gs;
224  }
225
226
227  bool GamestateManager::ack(unsigned int gamestateID, unsigned int clientID) {
228    ClientInformation *temp = ClientInformation::findClient(clientID);
229    assert(temp);
230    unsigned int curid = temp->getGamestateID();
231
232    if(gamestateID == ACKID_NACK){
233      temp->setGamestateID(GAMESTATEID_INITIAL);
234      // now delete all saved gamestates for this client
235      std::map<unsigned int, packet::Gamestate*>::iterator it;
236      for(it = gamestateMap_[clientID].begin(); it!=gamestateMap_[clientID].end(); ){
237        delete it->second;
238
239        gamestateMap_[clientID].erase(it++);
240      }
241      return true;
242    }
243
244    assert(curid==GAMESTATEID_INITIAL || curid<gamestateID);
245    COUT(5) << "acking gamestate " << gamestateID << " for clientid: " << clientID << " curid: " << curid << std::endl;
246    std::map<unsigned int, packet::Gamestate*>::iterator it;
247    for(it = gamestateMap_[clientID].begin(); it!=gamestateMap_[clientID].end() && it->first<gamestateID; ){
248      delete it->second;
249      gamestateMap_[clientID].erase(it++);
250    }
251    temp->setGamestateID(gamestateID);
252    TrafficControl::processAck(clientID, gamestateID);
253    return true;
254  }
255
256  void GamestateManager::removeClient(ClientInformation* client){
257    assert(client);
258    std::map<unsigned int, std::map<unsigned int, packet::Gamestate*> >::iterator clientMap = gamestateMap_.find(client->getID());
259    // first delete all remained gamestates
260    std::map<unsigned int, packet::Gamestate*>::iterator it;
261    for(it=clientMap->second.begin(); it!=clientMap->second.end(); it++)
262      delete it->second;
263    // now delete the clients gamestatemap
264    gamestateMap_.erase(clientMap);
265  }
266
267  bool GamestateManager::processGamestate(packet::Gamestate *gs){
268    if(gs->isCompressed())
269    {
270       bool b = gs->decompressData();
271       assert(b);
272    }
273    assert(!gs->isDiffed());
274    return gs->spreadData(0x1);
275  }
276
277}
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