[1502] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | * > www.orxonox.net < |
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| 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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[3084] | 23 | * Oliver Scheuss |
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[1502] | 24 | * Co-authors: |
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| 25 | * ... |
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| 26 | * |
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| 27 | */ |
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| 28 | |
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| 29 | // |
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| 30 | // C++ Implementation: Server |
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| 31 | // |
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| 32 | // Description: |
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| 33 | // |
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| 34 | // |
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| 35 | // Author: Oliver Scheuss, (C) 2007 |
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| 36 | // |
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| 37 | // Copyright: See COPYING file that comes with this distribution |
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| 38 | // |
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| 39 | // |
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| 40 | |
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| 41 | #include "Server.h" |
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| 42 | |
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[5749] | 43 | #define WIN32_LEAN_AND_MEAN |
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[2773] | 44 | #include <enet/enet.h> |
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[1755] | 45 | #include <cassert> |
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[3214] | 46 | #include <string> |
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[1502] | 47 | |
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[5929] | 48 | #include "util/Clock.h" |
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[3214] | 49 | #include "util/Debug.h" |
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| 50 | #include "core/ObjectList.h" |
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[7284] | 51 | #include "core/command/Executor.h" |
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[1735] | 52 | #include "packet/Chat.h" |
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[3214] | 53 | #include "packet/ClassID.h" |
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| 54 | #include "packet/DeleteObjects.h" |
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| 55 | #include "packet/FunctionIDs.h" |
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| 56 | #include "packet/Gamestate.h" |
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[1735] | 57 | #include "packet/Welcome.h" |
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[2087] | 58 | #include "ChatListener.h" |
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[3214] | 59 | #include "ClientInformation.h" |
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[3084] | 60 | #include "FunctionCallManager.h" |
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[3214] | 61 | #include "GamestateManager.h" |
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[7745] | 62 | #include "WANDiscovery.h" |
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[1502] | 63 | |
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[2171] | 64 | namespace orxonox |
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[1502] | 65 | { |
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[2087] | 66 | const unsigned int MAX_FAILURES = 20; |
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[1747] | 67 | |
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[1502] | 68 | /** |
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| 69 | * Constructor for default values (bindaddress is set to ENET_HOST_ANY |
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| 70 | * |
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| 71 | */ |
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[7163] | 72 | Server::Server() |
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| 73 | { |
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[3304] | 74 | this->timeSinceLastUpdate_=0; |
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[1502] | 75 | } |
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[1747] | 76 | |
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[7163] | 77 | Server::Server(int port) |
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| 78 | { |
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[3214] | 79 | this->setPort( port ); |
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[3304] | 80 | this->timeSinceLastUpdate_=0; |
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[1502] | 81 | } |
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| 82 | |
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| 83 | /** |
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| 84 | * Constructor |
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| 85 | * @param port Port to listen on |
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| 86 | * @param bindAddress Address to listen on |
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| 87 | */ |
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[7163] | 88 | Server::Server(int port, const std::string& bindAddress) |
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| 89 | { |
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[3214] | 90 | this->setPort( port ); |
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| 91 | this->setBindAddress( bindAddress ); |
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[3304] | 92 | this->timeSinceLastUpdate_=0; |
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[1502] | 93 | } |
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| 94 | |
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| 95 | /** |
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[1907] | 96 | * @brief Destructor |
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| 97 | */ |
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[7163] | 98 | Server::~Server() |
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| 99 | { |
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[1907] | 100 | } |
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[1502] | 101 | |
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[7739] | 102 | |
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[7750] | 103 | /** helper that connects to the master server */ |
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[7739] | 104 | void Server::helper_ConnectToMasterserver() |
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| 105 | { |
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[7763] | 106 | //[> initialize it and see if it worked <] |
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| 107 | //if( msc.initialize() ) |
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| 108 | //{ COUT(1) << "Error: could not initialize master server communications!\n"; |
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| 109 | //return; |
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| 110 | //} |
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[7739] | 111 | |
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[7763] | 112 | //[> connect and see if it worked <] |
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| 113 | //if( msc.connect( WANDiscovery::getInstance().getMSAddress().c_str(), |
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| 114 | //ORX_MSERVER_PORT ) ) |
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| 115 | //{ COUT(1) << "Error: could not connect to master server!\n"; |
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| 116 | //return; |
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| 117 | //} |
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[7739] | 118 | |
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| 119 | /* now send the master server some note we're here */ |
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[7763] | 120 | //msc.sendRequest( MSPROTO_GAME_SERVER " " MSPROTO_REGISTER_SERVER ); |
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| 121 | WANDiscovery::getInstance().msc.sendRequest( MSPROTO_GAME_SERVER " " |
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| 122 | MSPROTO_REGISTER_SERVER ); |
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[7739] | 123 | } |
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| 124 | |
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[1502] | 125 | /** |
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| 126 | * This function opens the server by creating the listener thread |
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| 127 | */ |
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[7163] | 128 | void Server::open() |
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| 129 | { |
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| 130 | Host::setActive(true); |
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[3214] | 131 | COUT(4) << "opening server" << endl; |
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| 132 | this->openListener(); |
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[7739] | 133 | |
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| 134 | /* make discoverable on LAN */ |
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[7163] | 135 | LANDiscoverable::setActivity(true); |
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[7739] | 136 | |
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| 137 | /* make discoverable on WAN */ |
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[7756] | 138 | /* TODO this needs to be optional, we need a switch from the UI to |
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| 139 | * enable/disable this |
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| 140 | */ |
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[7739] | 141 | helper_ConnectToMasterserver(); |
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| 142 | |
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| 143 | /* done */ |
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[1502] | 144 | return; |
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| 145 | } |
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| 146 | |
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| 147 | /** |
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| 148 | * This function closes the server |
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| 149 | */ |
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[7163] | 150 | void Server::close() |
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| 151 | { |
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| 152 | Host::setActive(false); |
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[3214] | 153 | COUT(4) << "closing server" << endl; |
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| 154 | this->disconnectClients(); |
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| 155 | this->closeListener(); |
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[7763] | 156 | |
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| 157 | /* tell master server we're closing */ |
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[7762] | 158 | COUT(2) << "disconnecting." << endl; |
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[7763] | 159 | WANDiscovery::getInstance().msc.sendRequest( MSPROTO_GAME_SERVER " " |
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| 160 | MSPROTO_SERVERDC ); |
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[7762] | 161 | COUT(2) << "disconnecting done" << endl; |
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[7763] | 162 | |
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[7163] | 163 | LANDiscoverable::setActivity(false); |
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[1502] | 164 | return; |
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| 165 | } |
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| 166 | |
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[7163] | 167 | bool Server::processChat(const std::string& message, unsigned int playerID) |
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| 168 | { |
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[1735] | 169 | ClientInformation *temp = ClientInformation::getBegin(); |
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[1907] | 170 | packet::Chat *chat; |
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[1735] | 171 | while(temp){ |
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[1907] | 172 | chat = new packet::Chat(message, playerID); |
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[1735] | 173 | chat->setClientID(temp->getID()); |
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| 174 | if(!chat->send()) |
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| 175 | COUT(3) << "could not send Chat message to client ID: " << temp->getID() << std::endl; |
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[1907] | 176 | temp = temp->next(); |
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[1735] | 177 | } |
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[2087] | 178 | // COUT(1) << "Player " << playerID << ": " << message << std::endl; |
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[1907] | 179 | return true; |
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[1502] | 180 | } |
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| 181 | |
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| 182 | |
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[7756] | 183 | /* handle incoming data */ |
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[7739] | 184 | int rephandler( char *addr, ENetEvent *ev ) |
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| 185 | { |
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[7756] | 186 | /* reply to pings */ |
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| 187 | if( !strncmp( (char *)ev->packet->data, MSPROTO_PING_GAMESERVER, |
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| 188 | MSPROTO_PING_GAMESERVER_LEN ) ) |
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| 189 | //this->msc.sendRequest( MSPROTO_ACK ); |
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| 190 | /* NOTE implement this after pollForReply |
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| 191 | * reimplementation |
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| 192 | */ |
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| 193 | return 0; |
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[7739] | 194 | |
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| 195 | /* done handling, return all ok code 0 */ |
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| 196 | return 0; |
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| 197 | } |
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| 198 | |
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| 199 | void Server::helper_HandleMasterServerRequests() |
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| 200 | { |
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[7750] | 201 | /* poll the master server for replies and see whether something |
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| 202 | * has to be done or changed. |
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| 203 | */ |
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[7763] | 204 | //WANDiscovery::getInstance().msc.pollForReply( rhandler, 10 ); |
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[7739] | 205 | } |
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| 206 | |
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[1502] | 207 | /** |
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| 208 | * Run this function once every tick |
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| 209 | * calls processQueue and updateGamestate |
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| 210 | * @param time time since last tick |
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| 211 | */ |
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[7163] | 212 | void Server::update(const Clock& time) |
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| 213 | { |
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[3304] | 214 | // receive incoming packets |
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[3214] | 215 | Connection::processQueue(); |
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[7739] | 216 | |
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[7163] | 217 | // receive and process incoming discovery packets |
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| 218 | LANDiscoverable::update(); |
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[6417] | 219 | |
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[7739] | 220 | // receive and process requests from master server |
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[7740] | 221 | /* todo */ |
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| 222 | //helper_HandleMasterServerRequests(); |
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[7739] | 223 | |
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[3304] | 224 | if ( ClientInformation::hasClients() ) |
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[3214] | 225 | { |
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[3304] | 226 | // process incoming gamestates |
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| 227 | GamestateManager::processGamestates(); |
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[6417] | 228 | |
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[3304] | 229 | // send function calls to clients |
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[3084] | 230 | FunctionCallManager::sendCalls(); |
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[6417] | 231 | |
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[3304] | 232 | //this steers our network frequency |
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| 233 | timeSinceLastUpdate_+=time.getDeltaTime(); |
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| 234 | if(timeSinceLastUpdate_>=NETWORK_PERIOD) |
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| 235 | { |
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| 236 | timeSinceLastUpdate_ -= static_cast<unsigned int>( timeSinceLastUpdate_ / NETWORK_PERIOD ) * NETWORK_PERIOD; |
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| 237 | updateGamestate(); |
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| 238 | } |
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| 239 | sendPackets(); // flush the enet queue |
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[1502] | 240 | } |
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| 241 | } |
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[1747] | 242 | |
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[7163] | 243 | bool Server::queuePacket(ENetPacket *packet, int clientID) |
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| 244 | { |
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[3214] | 245 | return ServerConnection::addPacket(packet, clientID); |
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[1735] | 246 | } |
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[6417] | 247 | |
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[2087] | 248 | /** |
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[6417] | 249 | * @brief: returns ping time to client in milliseconds |
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[2087] | 250 | */ |
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[7163] | 251 | unsigned int Server::getRTT(unsigned int clientID) |
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| 252 | { |
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[2087] | 253 | assert(ClientInformation::findClient(clientID)); |
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| 254 | return ClientInformation::findClient(clientID)->getRTT(); |
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| 255 | } |
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[6417] | 256 | |
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[5961] | 257 | void Server::printRTT() |
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| 258 | { |
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| 259 | for( ClientInformation* temp=ClientInformation::getBegin(); temp!=0; temp=temp->next() ) |
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| 260 | COUT(0) << "Round trip time to client with ID: " << temp->getID() << " is " << temp->getRTT() << " ms" << endl; |
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| 261 | } |
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[1502] | 262 | |
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| 263 | /** |
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[2087] | 264 | * @brief: return packet loss ratio to client (scales from 0 to 1) |
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| 265 | */ |
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[7163] | 266 | double Server::getPacketLoss(unsigned int clientID) |
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| 267 | { |
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[2087] | 268 | assert(ClientInformation::findClient(clientID)); |
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| 269 | return ClientInformation::findClient(clientID)->getPacketLoss(); |
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| 270 | } |
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[1502] | 271 | |
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| 272 | /** |
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| 273 | * takes a new snapshot of the gamestate and sends it to the clients |
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| 274 | */ |
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[7163] | 275 | void Server::updateGamestate() |
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| 276 | { |
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[3304] | 277 | if( ClientInformation::getBegin()==NULL ) |
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[2662] | 278 | //no client connected |
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[3304] | 279 | return; |
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| 280 | GamestateManager::update(); |
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[1534] | 281 | COUT(5) << "Server: one gamestate update complete, goig to sendGameState" << std::endl; |
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[1502] | 282 | //std::cout << "updated gamestate, sending it" << std::endl; |
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| 283 | //if(clients->getGamestateID()!=GAMESTATEID_INITIAL) |
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| 284 | sendGameState(); |
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[1907] | 285 | sendObjectDeletes(); |
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[1534] | 286 | COUT(5) << "Server: one sendGameState turn complete, repeat in next tick" << std::endl; |
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[1502] | 287 | //std::cout << "sent gamestate" << std::endl; |
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| 288 | } |
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| 289 | |
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[1735] | 290 | bool Server::processPacket( ENetPacket *packet, ENetPeer *peer ){ |
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| 291 | packet::Packet *p = packet::Packet::createPacket(packet, peer); |
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| 292 | return p->process(); |
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| 293 | } |
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[1747] | 294 | |
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[1502] | 295 | /** |
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| 296 | * sends the gamestate |
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| 297 | */ |
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[7163] | 298 | bool Server::sendGameState() |
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| 299 | { |
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[3304] | 300 | // COUT(5) << "Server: starting function sendGameState" << std::endl; |
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| 301 | // ClientInformation *temp = ClientInformation::getBegin(); |
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| 302 | // bool added=false; |
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| 303 | // while(temp != NULL){ |
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| 304 | // if( !(temp->getSynched()) ){ |
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| 305 | // COUT(5) << "Server: not sending gamestate" << std::endl; |
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| 306 | // temp=temp->next(); |
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| 307 | // if(!temp) |
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| 308 | // break; |
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| 309 | // continue; |
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| 310 | // } |
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| 311 | // COUT(4) << "client id: " << temp->getID() << " RTT: " << temp->getRTT() << " loss: " << temp->getPacketLoss() << std::endl; |
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| 312 | // COUT(5) << "Server: doing gamestate gamestate preparation" << std::endl; |
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| 313 | // int cid = temp->getID(); //get client id |
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| 314 | // packet::Gamestate *gs = GamestateManager::popGameState(cid); |
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| 315 | // if(gs==NULL){ |
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| 316 | // COUT(2) << "Server: could not generate gamestate (NULL from compress)" << std::endl; |
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| 317 | // temp = temp->next(); |
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| 318 | // continue; |
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| 319 | // } |
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| 320 | // //std::cout << "adding gamestate" << std::endl; |
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| 321 | // gs->setClientID(cid); |
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| 322 | // if ( !gs->send() ){ |
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| 323 | // COUT(3) << "Server: packet with client id (cid): " << cid << " not sended: " << temp->getFailures() << std::endl; |
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| 324 | // temp->addFailure(); |
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| 325 | // }else |
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| 326 | // temp->resetFailures(); |
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| 327 | // added=true; |
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| 328 | // temp=temp->next(); |
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| 329 | // // gs gets automatically deleted by enet callback |
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| 330 | // } |
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| 331 | GamestateManager::sendGamestates(); |
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[1502] | 332 | return true; |
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| 333 | } |
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[1747] | 334 | |
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[7163] | 335 | bool Server::sendObjectDeletes() |
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| 336 | { |
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[1907] | 337 | ClientInformation *temp = ClientInformation::getBegin(); |
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[2662] | 338 | if( temp == NULL ) |
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| 339 | //no client connected |
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| 340 | return true; |
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[1907] | 341 | packet::DeleteObjects *del = new packet::DeleteObjects(); |
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| 342 | if(!del->fetchIDs()) |
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[5929] | 343 | { |
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| 344 | delete del; |
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[1907] | 345 | return true; //everything ok (no deletes this tick) |
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[5929] | 346 | } |
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[1907] | 347 | // COUT(3) << "sending DeleteObjects" << std::endl; |
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| 348 | while(temp != NULL){ |
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[7163] | 349 | if( !(temp->getSynched()) ) |
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| 350 | { |
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[1907] | 351 | COUT(5) << "Server: not sending gamestate" << std::endl; |
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| 352 | temp=temp->next(); |
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| 353 | continue; |
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| 354 | } |
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| 355 | int cid = temp->getID(); //get client id |
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| 356 | packet::DeleteObjects *cd = new packet::DeleteObjects(*del); |
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| 357 | assert(cd); |
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| 358 | cd->setClientID(cid); |
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| 359 | if ( !cd->send() ) |
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| 360 | COUT(3) << "Server: packet with client id (cid): " << cid << " not sended: " << temp->getFailures() << std::endl; |
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| 361 | temp=temp->next(); |
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| 362 | // gs gets automatically deleted by enet callback |
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| 363 | } |
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[3198] | 364 | delete del; |
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[1907] | 365 | return true; |
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| 366 | } |
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[1747] | 367 | |
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[1907] | 368 | |
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[7163] | 369 | void Server::addPeer(ENetEvent *event) |
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| 370 | { |
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[2087] | 371 | static unsigned int newid=1; |
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| 372 | |
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| 373 | COUT(2) << "Server: adding client" << std::endl; |
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[1735] | 374 | ClientInformation *temp = ClientInformation::insertBack(new ClientInformation); |
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[7163] | 375 | if(!temp) |
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| 376 | { |
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[1502] | 377 | COUT(2) << "Server: could not add client" << std::endl; |
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| 378 | } |
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[2087] | 379 | temp->setID(newid); |
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[1502] | 380 | temp->setPeer(event->peer); |
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[2087] | 381 | |
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| 382 | // inform all the listeners |
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[5929] | 383 | ClientConnectionListener::broadcastClientConnected(newid); |
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[2087] | 384 | |
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[3214] | 385 | ++newid; |
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[2087] | 386 | |
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[1502] | 387 | COUT(3) << "Server: added client id: " << temp->getID() << std::endl; |
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[3214] | 388 | createClient(temp->getID()); |
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[2087] | 389 | } |
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[1747] | 390 | |
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[5929] | 391 | void Server::removePeer(ENetEvent *event) |
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| 392 | { |
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| 393 | COUT(4) << "removing client from list" << std::endl; |
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| 394 | ClientInformation *client = ClientInformation::findClient(&event->peer->address); |
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| 395 | if(!client) |
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| 396 | return; |
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| 397 | else |
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| 398 | { |
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| 399 | //ServerConnection::disconnectClient( client ); |
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[5961] | 400 | //ClientConnectionListener::broadcastClientDisconnected( client->getID() ); //this is done in ClientInformation now |
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[5929] | 401 | delete client; |
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| 402 | } |
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| 403 | } |
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| 404 | |
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[7163] | 405 | bool Server::createClient(int clientID) |
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| 406 | { |
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[1735] | 407 | ClientInformation *temp = ClientInformation::findClient(clientID); |
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[7163] | 408 | if(!temp) |
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| 409 | { |
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[1502] | 410 | COUT(2) << "Conn.Man. could not create client with id: " << clientID << std::endl; |
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| 411 | return false; |
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| 412 | } |
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[3084] | 413 | COUT(5) << "Con.Man: creating client id: " << temp->getID() << std::endl; |
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[6417] | 414 | |
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[3084] | 415 | // synchronise class ids |
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[3214] | 416 | syncClassid(temp->getID()); |
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[6417] | 417 | |
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[3084] | 418 | // now synchronise functionIDs |
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| 419 | packet::FunctionIDs *fIDs = new packet::FunctionIDs(); |
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| 420 | fIDs->setClientID(clientID); |
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| 421 | bool b = fIDs->send(); |
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| 422 | assert(b); |
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[6417] | 423 | |
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[1502] | 424 | temp->setSynched(true); |
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[3084] | 425 | COUT(4) << "sending welcome" << std::endl; |
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[1735] | 426 | packet::Welcome *w = new packet::Welcome(temp->getID(), temp->getShipID()); |
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| 427 | w->setClientID(temp->getID()); |
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[3084] | 428 | b = w->send(); |
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[1907] | 429 | assert(b); |
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[1751] | 430 | packet::Gamestate *g = new packet::Gamestate(); |
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| 431 | g->setClientID(temp->getID()); |
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[3102] | 432 | b = g->collectData(0,0x1); |
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[2087] | 433 | if(!b) |
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| 434 | return false; //no data for the client |
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[1907] | 435 | b = g->compressData(); |
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| 436 | assert(b); |
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| 437 | b = g->send(); |
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| 438 | assert(b); |
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[1502] | 439 | return true; |
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| 440 | } |
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[6417] | 441 | |
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[7163] | 442 | void Server::disconnectClient( ClientInformation *client ) |
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| 443 | { |
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[3214] | 444 | ServerConnection::disconnectClient( client ); |
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[3304] | 445 | GamestateManager::removeClient(client); |
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[5929] | 446 | // inform all the listeners |
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[5961] | 447 | // ClientConnectionListener::broadcastClientDisconnected(client->getID()); // this is done in ClientInformation now |
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[1502] | 448 | } |
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[2087] | 449 | |
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[7163] | 450 | bool Server::chat(const std::string& message) |
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| 451 | { |
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[2087] | 452 | return this->sendChat(message, Host::getPlayerID()); |
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| 453 | } |
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| 454 | |
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[7163] | 455 | bool Server::broadcast(const std::string& message) |
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| 456 | { |
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[2087] | 457 | return this->sendChat(message, CLIENTID_UNKNOWN); |
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| 458 | } |
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| 459 | |
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[7163] | 460 | bool Server::sendChat(const std::string& message, unsigned int clientID) |
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| 461 | { |
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[1907] | 462 | ClientInformation *temp = ClientInformation::getBegin(); |
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| 463 | packet::Chat *chat; |
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[7163] | 464 | while(temp) |
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| 465 | { |
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[2087] | 466 | chat = new packet::Chat(message, clientID); |
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[1907] | 467 | chat->setClientID(temp->getID()); |
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| 468 | if(!chat->send()) |
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| 469 | COUT(3) << "could not send Chat message to client ID: " << temp->getID() << std::endl; |
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| 470 | temp = temp->next(); |
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| 471 | } |
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[2087] | 472 | // COUT(1) << "Player " << Host::getPlayerID() << ": " << message << std::endl; |
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[2171] | 473 | for (ObjectList<ChatListener>::iterator it = ObjectList<ChatListener>::begin(); it != ObjectList<ChatListener>::end(); ++it) |
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[2087] | 474 | it->incomingChat(message, clientID); |
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| 475 | |
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[1907] | 476 | return true; |
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| 477 | } |
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[1747] | 478 | |
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[7163] | 479 | void Server::syncClassid(unsigned int clientID) |
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| 480 | { |
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[3214] | 481 | int failures=0; |
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| 482 | packet::ClassID *classid = new packet::ClassID(); |
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| 483 | classid->setClientID(clientID); |
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| 484 | while(!classid->send() && failures < 10){ |
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| 485 | failures++; |
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| 486 | } |
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| 487 | assert(failures<10); |
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| 488 | COUT(4) << "syncClassid:\tall synchClassID packets have been sent" << std::endl; |
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| 489 | } |
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| 490 | |
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[1502] | 491 | } |
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