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source: code/branches/presentation/src/network/packet/Gamestate.h @ 2743

Last change on this file since 2743 was 2660, checked in by scheusso, 16 years ago

fixed a problem with gamestate caching and diffing

  • Property svn:eol-style set to native
File size: 4.3 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, (C) 2008
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29
30#ifndef NETWORK_PACKETGAMESTATE_H
31#define NETWORK_PACKETGAMESTATE_H
32
33#include "network/NetworkPrereqs.h"
34
35#include "Packet.h"
36#include "network/TrafficControl.h"
37#include "core/CoreIncludes.h"
38#include <map>
39#include <list>
40#ifndef NDEBUG
41#include "util/CRC32.h"
42#endif
43
44namespace orxonox {
45
46namespace packet {
47
48class _NetworkExport GamestateHeader{
49  public:
50    GamestateHeader(uint8_t *data){ assert(data); data_ = data; *(uint32_t*)data_ = ENUM::Gamestate; }
51    GamestateHeader(uint8_t *data, GamestateHeader* h)
52    { assert(data); data_=data; memcpy(data_, h->data_, getSize()); }
53    static inline uint32_t getSize()
54    { return 21; }
55
56    inline int32_t getID() const
57    { assert(data_); return *(int32_t*)(data_+4); }
58    inline void setID(int32_t id)
59    { assert(data_); *(int32_t*)(data_+4) = id; }
60
61    inline int32_t getBaseID() const
62    { assert(data_); return *(int32_t*)(data_+8); }
63    inline void setBaseID(int32_t id)
64    { assert(data_); *(int32_t*)(data_+8) = id; }
65
66    inline uint32_t getDataSize() const
67    { assert(data_); return *(uint32_t*)(data_+12); }
68    inline void setDataSize(uint32_t size)
69    { assert(data_); *(uint32_t*)(data_+12) = size; }
70
71    inline uint32_t getCompSize() const
72    { assert(data_); return *(uint32_t*)(data_+16); }
73    inline void setCompSize(uint32_t size)
74    { assert(data_); *(uint32_t*)(data_+16) = size; }
75
76    inline bool isDiffed() const
77    { assert(data_); return *(int8_t*)(data_+20) & 0x1; }
78    inline void setDiffed(bool b)
79    { assert(data_); *(int8_t*)(data_+20) = (b<<0) | (*(int8_t*)(data_+20) & 0x6 ); }
80
81    inline bool isComplete() const
82    { assert(data_); return *(int8_t*)(data_+20) & 0x2; }
83    inline void setComplete(bool b)
84    { assert(data_); *(int8_t*)(data_+20) = (b<<1) | (*(int8_t*)(data_+20) & 0x5 ); }
85
86    inline bool isCompressed() const
87    { assert(data_); return *(int8_t*)(data_+20) & 0x4; }
88    inline void setCompressed(bool b)
89    { assert(data_); *(int8_t*)(data_+20) = (b<<2) | (*(int8_t*)(data_+20) & 0x3 ); }
90
91    inline void operator=(GamestateHeader& h)
92    { assert(data_); assert(h.data_); memcpy( data_, h.data_, getSize()); }
93  private:
94    uint8_t *data_;
95//#define GAMESTATE_START(data) (data + sizeof(GamestateHeader))
96//#define GAMESTATE_HEADER(data) ((GamestateHeader *)data)
97//#define HEADER GAMESTATE_HEADER(data_)
98
99};
100
101/**
102        @author Oliver Scheuss
103*/
104class _NetworkExport Gamestate: public Packet{
105  public:
106    Gamestate();
107    Gamestate(uint8_t *data, unsigned int clientID);
108    Gamestate(uint8_t *data);
109    Gamestate(const Gamestate& g);
110
111    ~Gamestate();
112
113    bool collectData(int id, uint8_t mode=0x0);
114    bool spreadData( uint8_t mode=0x0);
115    inline int32_t getID() const { return header_->getID(); }
116    inline bool isDiffed() const { return header_->isDiffed(); }
117    inline bool isCompressed() const { return header_->isCompressed(); }
118    inline int32_t getBaseID() const { return header_->getBaseID(); }
119    Gamestate *diff(Gamestate *base);
120    Gamestate *undiff(Gamestate *base);
121    Gamestate* doSelection(unsigned int clientID, unsigned int targetSize);
122    bool compressData();
123    bool decompressData();
124
125    // Packet functions
126  private:
127    virtual uint32_t getSize() const;
128    virtual inline bool process();
129
130    bool operator ==(packet::Gamestate gs);
131  private:
132    uint32_t calcGamestateSize(int32_t id, uint8_t mode=0x0);
133    std::list<obj> dataMap_;
134    GamestateHeader* header_;
135};
136
137}
138
139}
140
141#endif
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