source: code/trunk/src/network/packet/Packet.h @ 2756

/*
 *   ORXONOX - the hottest 3D action shooter ever to exist
 *                    > www.orxonox.net <
 *
 *
 *   License notice:
 *
 *   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
 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 *   Author:
 *      Oliver Scheuss <scheusso [at] ee.ethz.ch>, (C) 2008
 *   Co-authors:
 *      ...
 *
 */
#ifndef NETWORKPACKET_H
#define NETWORKPACKET_H

#include "network/NetworkPrereqs.h"

#include <map>
#ifndef WIN32_LEAN_AND_MEAN
#  define WIN32_LEAN_AND_MEAN
#endif
#define NOMINMAX // required to stop windows.h screwing up std::min definition
#include <enet/enet.h>
#include <boost/thread/recursive_mutex.hpp>

namespace orxonox {

namespace packet{

namespace ENUM{
  enum Direction{
    Incoming,
    Outgoing,
    Bidirectional
  };
  enum Type{
    Acknowledgement,
    Gamestate,
    ClassID,
    Chat,
    Welcome,
    DeleteObjects
  };
}

/**
        @author Oliver Scheuss <scheusso [at] ee.ethz.ch>
*/
class _NetworkExport Packet{
  public:
    Packet(const Packet &p);
    virtual ~Packet();
    static Packet *createPacket(ENetPacket *packet, ENetPeer *peer);
    static void deletePacket(ENetPacket *packet);

    virtual unsigned char *getData(){ return data_; };
    virtual unsigned int getSize() const =0;
    virtual bool process()=0;
    enet_uint32 getFlags()
      { return flags_; }
    int getClientID()
      { return clientID_; }
    void setClientID( int id )
      { clientID_ = id; }

    bool send();
  protected:
    Packet();
    Packet(uint8_t *data, unsigned int clientID);
//    Packet(ENetPacket *packet, ENetPeer *peer);
    enet_uint32 flags_;
    unsigned int clientID_;
    ENUM::Direction packetDirection_;
    /** Pointer to the data. Be careful when deleting it because it might
        point to a location that was allocated by ENet.
        See bDataENetAllocated_ */
    uint8_t *data_;
    /** Tells whether data_ was allocated by ENet or ourselves.
        data_ might no correlate with enetPacket_->data. */
    bool bDataENetAllocated_;
  private:
    static std::map<size_t, Packet *> packetMap_;
    //! Static mutex for any packetMap_ access
    static boost::recursive_mutex packetMap_mutex;
    ENetPacket *enetPacket_;
};

} //namespace packet

} //namespace orxonox

#endif