[1711] | 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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[1711] | 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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[1701] | 29 | #include "Gamestate.h" |
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[3214] | 30 | |
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[2773] | 31 | #include <zlib.h> |
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[3214] | 32 | |
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| 33 | #include "util/Debug.h" |
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[2896] | 34 | #include "core/GameMode.h" |
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[3214] | 35 | #include "core/ObjectList.h" |
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| 36 | #include "network/synchronisable/Synchronisable.h" |
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| 37 | #include "network/GamestateHandler.h" |
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[1701] | 38 | |
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[2171] | 39 | namespace orxonox { |
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[1701] | 40 | |
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| 41 | namespace packet { |
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| 42 | |
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[2662] | 43 | #define GAMESTATE_START(data) (data + GamestateHeader::getSize()) |
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[1740] | 44 | |
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[7758] | 45 | #define PACKET_FLAG_GAMESTATE 0 //PacketFlag::Reliable |
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[2087] | 46 | |
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[7163] | 47 | inline bool memzero( uint8_t* data, uint32_t datalength) |
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| 48 | { |
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| 49 | uint64_t* d = (uint64_t*)data; |
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[2662] | 50 | |
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[7163] | 51 | for( unsigned int i=0; i<datalength/8; i++ ) |
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| 52 | { |
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| 53 | if( *(d+i) != 0 ) |
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| 54 | return false; |
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| 55 | } |
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| 56 | // now process the rest (when datalength isn't a multiple of 4) |
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| 57 | for( unsigned int j = 8*(datalength/8); j<datalength; j++ ) |
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| 58 | { |
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| 59 | if( *(data+j) != 0 ) |
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| 60 | return false; |
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| 61 | } |
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| 62 | return true; |
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| 63 | } |
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| 64 | |
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| 65 | |
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| 66 | Gamestate::Gamestate(): |
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[7758] | 67 | header_() |
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[1701] | 68 | { |
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[1907] | 69 | flags_ = flags_ | PACKET_FLAG_GAMESTATE; |
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[1701] | 70 | } |
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| 71 | |
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[7163] | 72 | |
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[1907] | 73 | Gamestate::Gamestate(uint8_t *data, unsigned int clientID): |
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[7758] | 74 | Packet(data, clientID), header_(data) |
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[1701] | 75 | { |
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[1907] | 76 | flags_ = flags_ | PACKET_FLAG_GAMESTATE; |
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[1701] | 77 | } |
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| 78 | |
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[7163] | 79 | |
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[7758] | 80 | Gamestate::Gamestate(uint8_t *data): |
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| 81 | header_(data) |
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[1907] | 82 | { |
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| 83 | flags_ = flags_ | PACKET_FLAG_GAMESTATE; |
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[7163] | 84 | data_ = data; |
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[1907] | 85 | } |
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[1701] | 86 | |
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[7163] | 87 | |
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[2662] | 88 | Gamestate::Gamestate(const Gamestate& g) : |
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[7758] | 89 | Packet( *(Packet*)&g ), header_(this->data_), nrOfVariables_(0) |
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[2662] | 90 | { |
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| 91 | flags_ = flags_ | PACKET_FLAG_GAMESTATE; |
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[7163] | 92 | sizes_ = g.sizes_; |
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[2662] | 93 | } |
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[1907] | 94 | |
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[2662] | 95 | |
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[1701] | 96 | Gamestate::~Gamestate() |
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| 97 | { |
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| 98 | } |
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| 99 | |
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[7163] | 100 | |
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[2171] | 101 | bool Gamestate::collectData(int id, uint8_t mode) |
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[1701] | 102 | { |
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[2662] | 103 | uint32_t tempsize=0, currentsize=0; |
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[1751] | 104 | assert(data_==0); |
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[2662] | 105 | uint32_t size = calcGamestateSize(id, mode); |
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[1740] | 106 | |
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[1701] | 107 | COUT(4) << "G.ST.Man: producing gamestate with id: " << id << std::endl; |
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| 108 | if(size==0) |
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| 109 | return false; |
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[2662] | 110 | data_ = new uint8_t[size + GamestateHeader::getSize()]; |
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[7163] | 111 | if(!data_) |
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| 112 | { |
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[1701] | 113 | COUT(2) << "GameStateManager: could not allocate memory" << std::endl; |
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| 114 | return false; |
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| 115 | } |
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[6417] | 116 | |
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[7758] | 117 | // tell the gamestate header where to store the data |
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| 118 | header_.setData(this->data_); |
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[2087] | 119 | |
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[1701] | 120 | //start collect data synchronisable by synchronisable |
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[7163] | 121 | uint8_t *mem = data_; // in this stream store all data of the variables and the headers of the synchronisable |
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[2662] | 122 | mem += GamestateHeader::getSize(); |
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[2171] | 123 | ObjectList<Synchronisable>::iterator it; |
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[7163] | 124 | for(it = ObjectList<Synchronisable>::begin(); it; ++it) |
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| 125 | { |
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[6417] | 126 | |
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[3084] | 127 | // tempsize=it->getSize(id, mode); |
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| 128 | |
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[7163] | 129 | tempsize = it->getData(mem, this->sizes_, id, mode); |
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[3084] | 130 | if ( tempsize != 0 ) |
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| 131 | dataVector_.push_back( obj(it->getObjectID(), it->getCreatorID(), tempsize, mem-data_) ); |
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[6417] | 132 | |
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[2662] | 133 | #ifndef NDEBUG |
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[7163] | 134 | if(currentsize+tempsize > size) |
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| 135 | { |
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[2171] | 136 | assert(0); // if we don't use multithreading this part shouldn't be neccessary |
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[1701] | 137 | // start allocate additional memory |
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| 138 | COUT(3) << "G.St.Man: need additional memory" << std::endl; |
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[2171] | 139 | ObjectList<Synchronisable>::iterator temp = it; |
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[2662] | 140 | uint32_t addsize=tempsize; |
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[1701] | 141 | while(++temp) |
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[1907] | 142 | addsize+=temp->getSize(id, mode); |
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[2662] | 143 | data_ = (uint8_t *)realloc(data_, GamestateHeader::getSize() + currentsize + addsize); |
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[1701] | 144 | if(!data_) |
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| 145 | return false; |
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| 146 | size = currentsize+addsize; |
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| 147 | }// stop allocate additional memory |
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[2662] | 148 | #endif |
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[3084] | 149 | // if(!it->getData(mem, id, mode)) |
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| 150 | // return false; // mem pointer gets automatically increased because of call by reference |
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[1701] | 151 | // increase size counter by size of current synchronisable |
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| 152 | currentsize+=tempsize; |
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| 153 | } |
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[1740] | 154 | |
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| 155 | |
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[1701] | 156 | //start write gamestate header |
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[7758] | 157 | header_.setDataSize( currentsize ); |
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| 158 | header_.setID( id ); |
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| 159 | header_.setBaseID( GAMESTATEID_INITIAL ); |
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| 160 | header_.setDiffed( false ); |
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| 161 | header_.setComplete( true ); |
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| 162 | header_.setCompressed( false ); |
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[1701] | 163 | //stop write gamestate header |
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[1740] | 164 | |
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[1701] | 165 | COUT(5) << "G.ST.Man: Gamestate size: " << currentsize << std::endl; |
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| 166 | COUT(5) << "G.ST.Man: 'estimated' (and corrected) Gamestate size: " << size << std::endl; |
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| 167 | return true; |
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| 168 | } |
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| 169 | |
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[7163] | 170 | |
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[2171] | 171 | bool Gamestate::spreadData(uint8_t mode) |
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[1701] | 172 | { |
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[7758] | 173 | COUT(4) << "processing gamestate with id " << header_.getID() << endl; |
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[1751] | 174 | assert(data_); |
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[7758] | 175 | assert(!header_.isCompressed()); |
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[2662] | 176 | uint8_t *mem=data_+GamestateHeader::getSize(); |
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[1907] | 177 | Synchronisable *s; |
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[7758] | 178 | |
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[1907] | 179 | // update the data of the objects we received |
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[7758] | 180 | while(mem < data_+GamestateHeader::getSize()+header_.getDataSize()) |
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[7163] | 181 | { |
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[2662] | 182 | SynchronisableHeader objectheader(mem); |
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[1701] | 183 | |
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[2662] | 184 | s = Synchronisable::getSynchronisable( objectheader.getObjectID() ); |
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[1907] | 185 | if(!s) |
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[1701] | 186 | { |
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[2896] | 187 | if (!GameMode::isMaster()) |
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[2662] | 188 | { |
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| 189 | Synchronisable::fabricate(mem, mode); |
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| 190 | } |
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| 191 | else |
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| 192 | { |
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[7758] | 193 | // COUT(4) << "not creating object of classid " << objectheader.getClassID() << endl; |
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[7163] | 194 | mem += objectheader.getDataSize() + ( objectheader.isDiffed() ? SynchronisableHeaderLight::getSize() : SynchronisableHeader::getSize() ); |
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[2662] | 195 | } |
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[1701] | 196 | } |
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[1907] | 197 | else |
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| 198 | { |
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[7758] | 199 | // COUT(4) << "updating object of classid " << objectheader.getClassID() << endl; |
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[1907] | 200 | bool b = s->updateData(mem, mode); |
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| 201 | assert(b); |
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| 202 | } |
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[1701] | 203 | } |
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[2662] | 204 | // In debug mode, check first, whether there are no duplicate objectIDs |
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| 205 | #ifndef NDEBUG |
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[7163] | 206 | if(this->getID()%1000==1) |
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| 207 | { |
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[3084] | 208 | std::list<uint32_t> v1; |
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| 209 | ObjectList<Synchronisable>::iterator it; |
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[7163] | 210 | for (it = ObjectList<Synchronisable>::begin(); it != ObjectList<Synchronisable>::end(); ++it) |
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| 211 | { |
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| 212 | if (it->getObjectID() == OBJECTID_UNKNOWN) |
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| 213 | { |
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| 214 | if (it->objectMode_ != 0x0) |
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| 215 | { |
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[3084] | 216 | COUT(0) << "Found object with OBJECTID_UNKNOWN on the client with objectMode != 0x0!" << std::endl; |
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| 217 | COUT(0) << "Possible reason for this error: Client created a synchronized object without the Server's approval." << std::endl; |
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| 218 | COUT(0) << "Objects class: " << it->getIdentifier()->getName() << std::endl; |
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| 219 | assert(false); |
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| 220 | } |
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[2662] | 221 | } |
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[7163] | 222 | else |
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| 223 | { |
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[3084] | 224 | std::list<uint32_t>::iterator it2; |
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[7163] | 225 | for (it2 = v1.begin(); it2 != v1.end(); ++it2) |
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| 226 | { |
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| 227 | if (it->getObjectID() == *it2) |
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| 228 | { |
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[3084] | 229 | COUT(0) << "Found duplicate objectIDs on the client!" << std::endl |
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| 230 | << "Are you sure you don't create a Sychnronisable objcect with 'new' \ |
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| 231 | that doesn't have objectMode = 0x0?" << std::endl; |
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| 232 | assert(false); |
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| 233 | } |
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[2662] | 234 | } |
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[3084] | 235 | v1.push_back(it->getObjectID()); |
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[2662] | 236 | } |
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| 237 | } |
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| 238 | } |
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| 239 | #endif |
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[1701] | 240 | return true; |
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| 241 | } |
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| 242 | |
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[7163] | 243 | |
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[2662] | 244 | uint32_t Gamestate::getSize() const |
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[1701] | 245 | { |
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[1711] | 246 | assert(data_); |
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[7758] | 247 | if(header_.isCompressed()) |
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| 248 | return header_.getCompSize()+GamestateHeader::getSize(); |
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[1701] | 249 | else |
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| 250 | { |
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[7758] | 251 | return header_.getDataSize()+GamestateHeader::getSize(); |
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[1701] | 252 | } |
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| 253 | } |
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| 254 | |
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[7163] | 255 | |
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| 256 | bool Gamestate::operator==(packet::Gamestate gs) |
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| 257 | { |
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[2662] | 258 | uint8_t *d1 = data_+GamestateHeader::getSize(); |
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| 259 | uint8_t *d2 = gs.data_+GamestateHeader::getSize(); |
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[3084] | 260 | GamestateHeader* h1 = new GamestateHeader(data_); |
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| 261 | GamestateHeader* h2 = new GamestateHeader(gs.data_); |
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| 262 | assert(h1->getDataSize() == h2->getDataSize()); |
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[1751] | 263 | assert(!isCompressed()); |
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| 264 | assert(!gs.isCompressed()); |
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[3084] | 265 | return memcmp(d1, d2, h1->getDataSize())==0; |
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[1751] | 266 | } |
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| 267 | |
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[7163] | 268 | |
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[1701] | 269 | bool Gamestate::process() |
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| 270 | { |
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[1705] | 271 | return GamestateHandler::addGamestate(this, getClientID()); |
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[1701] | 272 | } |
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| 273 | |
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[1907] | 274 | |
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[1701] | 275 | bool Gamestate::compressData() |
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| 276 | { |
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[2662] | 277 | assert(data_); |
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[7758] | 278 | assert(!header_.isCompressed()); |
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| 279 | uLongf buffer = (uLongf)(((header_.getDataSize() + 12)*1.01)+1); |
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[1701] | 280 | if(buffer==0) |
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| 281 | return false; |
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[1740] | 282 | |
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[2662] | 283 | uint8_t *ndata = new uint8_t[buffer+GamestateHeader::getSize()]; |
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| 284 | uint8_t *dest = ndata + GamestateHeader::getSize(); |
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| 285 | uint8_t *source = data_ + GamestateHeader::getSize(); |
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[1701] | 286 | int retval; |
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[7758] | 287 | retval = compress( dest, &buffer, source, (uLong)(header_.getDataSize()) ); |
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[7163] | 288 | switch ( retval ) |
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| 289 | { |
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[1701] | 290 | case Z_OK: COUT(5) << "G.St.Man: compress: successfully compressed" << std::endl; break; |
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[1751] | 291 | case Z_MEM_ERROR: COUT(1) << "G.St.Man: compress: not enough memory available in gamestate.compress" << std::endl; return false; |
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| 292 | case Z_BUF_ERROR: COUT(2) << "G.St.Man: compress: not enough memory available in the buffer in gamestate.compress" << std::endl; return false; |
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| 293 | case Z_DATA_ERROR: COUT(2) << "G.St.Man: compress: data corrupted in gamestate.compress" << std::endl; return false; |
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[1701] | 294 | } |
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| 295 | |
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| 296 | //copy and modify header |
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[7758] | 297 | GamestateHeader *temp = new GamestateHeader(data_); |
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| 298 | header_.setData(ndata); |
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| 299 | header_ = *temp; |
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[2662] | 300 | delete temp; |
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[1701] | 301 | //delete old data |
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| 302 | delete[] data_; |
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| 303 | //save new data |
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| 304 | data_ = ndata; |
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[7758] | 305 | header_.setCompSize( buffer ); |
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| 306 | header_.setCompressed( true ); |
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| 307 | COUT(4) << "gamestate compress datasize: " << header_.getDataSize() << " compsize: " << header_.getCompSize() << std::endl; |
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[1701] | 308 | return true; |
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| 309 | } |
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[7163] | 310 | |
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| 311 | |
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[1701] | 312 | bool Gamestate::decompressData() |
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| 313 | { |
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[2662] | 314 | assert(data_); |
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[7758] | 315 | assert(header_.isCompressed()); |
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| 316 | COUT(4) << "GameStateClient: uncompressing gamestate. id: " << header_.getID() << ", baseid: " << header_.getBaseID() << ", datasize: " << header_.getDataSize() << ", compsize: " << header_.getCompSize() << std::endl; |
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| 317 | uint32_t datasize = header_.getDataSize(); |
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| 318 | uint32_t compsize = header_.getCompSize(); |
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[2662] | 319 | uint32_t bufsize; |
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[1907] | 320 | bufsize = datasize; |
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[1751] | 321 | assert(bufsize!=0); |
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[2662] | 322 | uint8_t *ndata = new uint8_t[bufsize + GamestateHeader::getSize()]; |
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| 323 | uint8_t *dest = ndata + GamestateHeader::getSize(); |
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| 324 | uint8_t *source = data_ + GamestateHeader::getSize(); |
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[1701] | 325 | int retval; |
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[1751] | 326 | uLongf length=bufsize; |
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| 327 | retval = uncompress( dest, &length, source, (uLong)compsize ); |
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[7163] | 328 | switch ( retval ) |
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| 329 | { |
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[1701] | 330 | case Z_OK: COUT(5) << "successfully decompressed" << std::endl; break; |
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| 331 | case Z_MEM_ERROR: COUT(1) << "not enough memory available" << std::endl; return false; |
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| 332 | case Z_BUF_ERROR: COUT(2) << "not enough memory available in the buffer" << std::endl; return false; |
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| 333 | case Z_DATA_ERROR: COUT(2) << "data corrupted (zlib)" << std::endl; return false; |
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| 334 | } |
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[1752] | 335 | |
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[1701] | 336 | //copy over the header |
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[7758] | 337 | GamestateHeader* temp = new GamestateHeader( data_ ); |
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| 338 | header_.setData(ndata); |
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| 339 | header_ = *temp; |
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[2662] | 340 | delete temp; |
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[2087] | 341 | |
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[7163] | 342 | if (this->bDataENetAllocated_) |
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| 343 | { |
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[2087] | 344 | // Memory was allocated by ENet. --> We let it be since enet_packet_destroy will |
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| 345 | // deallocated it anyway. So data and packet stay together. |
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| 346 | this->bDataENetAllocated_ = false; |
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| 347 | } |
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[7163] | 348 | else |
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| 349 | { |
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[2087] | 350 | // We allocated the memory in the first place (unlikely). So we destroy the old data |
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| 351 | // and overwrite it with the new decompressed data. |
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| 352 | delete[] this->data_; |
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| 353 | } |
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| 354 | |
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[1751] | 355 | //set new pointers |
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[1701] | 356 | data_ = ndata; |
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[7758] | 357 | header_.setCompressed( false ); |
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| 358 | assert(header_.getDataSize()==datasize); |
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| 359 | assert(header_.getCompSize()==compsize); |
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[1701] | 360 | return true; |
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| 361 | } |
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| 362 | |
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[7163] | 363 | |
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[7758] | 364 | inline void /*Gamestate::*/diffObject( uint8_t*& newDataPtr, uint8_t*& origDataPtr, uint8_t*& baseDataPtr, SynchronisableHeader& objectHeader, std::vector<uint32_t>::iterator& sizes ) |
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| 365 | { |
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| 366 | // COUT(4) << "dodiff" << endl; |
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| 367 | // if(baseOffset==0) |
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| 368 | // { |
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| 369 | // assert(origOffset==0); |
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| 370 | // } |
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| 371 | assert( objectHeader.getDataSize() == SynchronisableHeader(baseDataPtr).getDataSize() ); |
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| 372 | |
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| 373 | uint32_t objectOffset = SynchronisableHeader::getSize(); // offset inside the object in the origData and baseData |
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| 374 | // Check whether the whole object stayed the same |
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| 375 | if( memcmp( origDataPtr+objectOffset, baseDataPtr+objectOffset, objectHeader.getDataSize()) == 0 ) |
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| 376 | { |
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| 377 | // COUT(4) << "skip object " << Synchronisable::getSynchronisable(objectHeader.getObjectID())->getIdentifier()->getName() << endl; |
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| 378 | origDataPtr += objectOffset + objectHeader.getDataSize(); // skip the whole object |
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| 379 | baseDataPtr += objectOffset + objectHeader.getDataSize(); |
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| 380 | sizes += Synchronisable::getSynchronisable(objectHeader.getObjectID())->getNrOfVariables(); |
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| 381 | } |
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| 382 | else |
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| 383 | { |
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| 384 | // if( Synchronisable::getSynchronisable(origHeader.getObjectID())->getIdentifier()->getName() == "Bot" ) |
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| 385 | // COUT(0) << "blub" << endl; |
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| 386 | // COUT(4) << "object diff: " << Synchronisable::getSynchronisable(h.getObjectID())->getIdentifier()->getName() << endl; |
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| 387 | // COUT(4) << "diff " << h.getObjectID() << ":"; |
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| 388 | // Now start to diff the Object |
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| 389 | SynchronisableHeaderLight newObjectHeader(newDataPtr); |
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| 390 | newObjectHeader = objectHeader; // copy over the objectheader |
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| 391 | VariableID variableID = 0; |
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| 392 | uint32_t diffedObjectOffset = SynchronisableHeaderLight::getSize(); |
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| 393 | // iterate through all variables |
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| 394 | while( objectOffset < objectHeader.getDataSize()+SynchronisableHeader::getSize() ) |
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| 395 | { |
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| 396 | // check whether variable changed and write id and copy over variable to the new stream |
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| 397 | // otherwise skip variable |
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| 398 | // assert(sizes != this->sizes_.end()); |
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| 399 | uint32_t varSize = *sizes; |
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| 400 | assert( varSize == Synchronisable::getSynchronisable(objectHeader.getObjectID())->getVarSize(variableID) ); |
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| 401 | if ( varSize != 0 ) |
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| 402 | { |
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| 403 | if ( memcmp(origDataPtr+objectOffset, baseDataPtr+objectOffset, varSize) != 0 ) |
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| 404 | { |
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| 405 | // COUT(4) << "copy variable" << endl; |
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| 406 | *(VariableID*)(newDataPtr+diffedObjectOffset) = variableID; // copy over the variableID |
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| 407 | diffedObjectOffset += sizeof(VariableID); |
---|
| 408 | memcpy( newDataPtr+diffedObjectOffset, origDataPtr+objectOffset, varSize ); |
---|
| 409 | diffedObjectOffset += varSize; |
---|
| 410 | objectOffset += varSize; |
---|
| 411 | } |
---|
| 412 | else |
---|
| 413 | { |
---|
| 414 | // COUT(4) << "skip variable" << endl; |
---|
| 415 | objectOffset += varSize; |
---|
| 416 | } |
---|
| 417 | } |
---|
| 418 | // else |
---|
| 419 | // COUT(4) << "varsize 0" << endl; |
---|
| 420 | |
---|
| 421 | ++variableID; |
---|
| 422 | ++sizes; |
---|
| 423 | } |
---|
| 424 | |
---|
| 425 | if( Synchronisable::getSynchronisable(objectHeader.getObjectID())->getNrOfVariables() != variableID ) |
---|
| 426 | sizes += Synchronisable::getSynchronisable(objectHeader.getObjectID())->getNrOfVariables() - variableID; |
---|
| 427 | // COUT(4) << endl; |
---|
| 428 | |
---|
| 429 | newObjectHeader.setDiffed(true); |
---|
| 430 | newObjectHeader.setDataSize(diffedObjectOffset-SynchronisableHeaderLight::getSize()); |
---|
| 431 | assert(objectOffset == objectHeader.getDataSize()+SynchronisableHeader::getSize()); |
---|
| 432 | assert(newObjectHeader.getDataSize()>0); |
---|
| 433 | origDataPtr += objectOffset; |
---|
| 434 | // baseOffset += temp + h.getDataSize()+SynchronisableHeader::getSize() - baseData; |
---|
| 435 | //baseOffset += objectOffset; |
---|
| 436 | // SynchronisableHeader htemp(temp); |
---|
| 437 | // baseOffset += SynchronisableHeader::getSize() + htemp.getDataSize(); |
---|
| 438 | // { |
---|
| 439 | // SynchronisableHeader htemp2( baseData+(temp-baseData+objectOffset) ); |
---|
| 440 | // if( baseData+(temp-baseData+objectOffset) < baseData+baseLength ) |
---|
| 441 | // { |
---|
| 442 | // assert(htemp2.getClassID()<500); |
---|
| 443 | // assert(htemp2.getDataSize()!=0 && htemp2.getDataSize()<1000); |
---|
| 444 | // assert(htemp2.isDiffed()==false); |
---|
| 445 | // } |
---|
| 446 | // } |
---|
| 447 | baseDataPtr += objectOffset; |
---|
| 448 | newDataPtr += diffedObjectOffset; |
---|
| 449 | } |
---|
| 450 | } |
---|
| 451 | |
---|
| 452 | inline void /*Gamestate::*/copyObject( uint8_t*& newData, uint8_t*& origData, uint8_t*& baseData, SynchronisableHeader& objectHeader, std::vector<uint32_t>::iterator& sizes ) |
---|
| 453 | { |
---|
| 454 | // COUT(4) << "docopy" << endl; |
---|
| 455 | // Just copy over the whole Object |
---|
| 456 | memcpy( newData, origData, objectHeader.getDataSize()+SynchronisableHeader::getSize() ); |
---|
| 457 | newData += objectHeader.getDataSize()+SynchronisableHeader::getSize(); |
---|
| 458 | origData += objectHeader.getDataSize()+SynchronisableHeader::getSize(); |
---|
| 459 | // SynchronisableHeader baseHeader( baseData ); |
---|
| 460 | // baseData += baseHeader.getDataSize()+SynchronisableHeader::getSize(); |
---|
| 461 | // COUT(4) << "copy " << h.getObjectID() << endl; |
---|
| 462 | // COUT(4) << "copy " << h.getObjectID() << ":"; |
---|
| 463 | sizes += Synchronisable::getSynchronisable(objectHeader.getObjectID())->getNrOfVariables(); |
---|
| 464 | // for( unsigned int i = 0; i < Synchronisable::getSynchronisable(objectHeader.getObjectID())->getNrOfVariables(); ++i ) |
---|
| 465 | // { |
---|
| 466 | // // COUT(4) << " " << *sizes; |
---|
| 467 | // ++sizes; |
---|
| 468 | // } |
---|
| 469 | // COUT(4) << endl; |
---|
| 470 | } |
---|
| 471 | |
---|
| 472 | inline bool findObject(uint8_t*& dataPtr, uint8_t* endPtr, SynchronisableHeader& objectHeader) |
---|
| 473 | { |
---|
| 474 | // Some assertions to make sure the dataPtr is valid (pointing to a SynchronisableHeader) |
---|
| 475 | { |
---|
| 476 | SynchronisableHeader htemp2(dataPtr); |
---|
| 477 | assert(htemp2.getClassID()<500); |
---|
| 478 | assert(htemp2.getDataSize()!=0 && htemp2.getDataSize()<1000); |
---|
| 479 | assert(htemp2.isDiffed()==false); |
---|
| 480 | } |
---|
| 481 | uint32_t objectID = objectHeader.getObjectID(); |
---|
| 482 | while ( dataPtr < endPtr ) |
---|
| 483 | { |
---|
| 484 | SynchronisableHeader htemp(dataPtr); |
---|
| 485 | assert( htemp.getDataSize()!=0 ); |
---|
| 486 | if ( htemp.getObjectID() == objectID ) |
---|
| 487 | { |
---|
| 488 | assert( objectHeader.getClassID() == htemp.getClassID() ); |
---|
| 489 | assert( objectHeader.getCreatorID() == htemp.getCreatorID() ); |
---|
| 490 | return true; |
---|
| 491 | } |
---|
| 492 | { |
---|
| 493 | if( dataPtr+htemp.getDataSize()+SynchronisableHeader::getSize() < endPtr ) |
---|
| 494 | { |
---|
| 495 | SynchronisableHeader htemp2(dataPtr+htemp.getDataSize()+SynchronisableHeader::getSize()); |
---|
| 496 | assert(htemp2.getClassID()<500); |
---|
| 497 | assert(htemp2.getDataSize()!=0 && htemp2.getDataSize()<1000); |
---|
| 498 | assert(htemp2.isDiffed()==false); |
---|
| 499 | } |
---|
| 500 | } |
---|
| 501 | dataPtr += htemp.getDataSize()+SynchronisableHeader::getSize(); |
---|
| 502 | |
---|
| 503 | } |
---|
| 504 | assert(dataPtr == endPtr); |
---|
| 505 | |
---|
| 506 | return false; |
---|
| 507 | } |
---|
| 508 | |
---|
[7163] | 509 | Gamestate* Gamestate::diffVariables(Gamestate *base) |
---|
[1701] | 510 | { |
---|
[7163] | 511 | assert(this && base); assert(data_ && base->data_); |
---|
[7758] | 512 | assert(!header_.isCompressed() && !base->header_.isCompressed()); |
---|
| 513 | assert(!header_.isDiffed()); |
---|
| 514 | assert( header_.getDataSize() && base->header_.getDataSize() ); |
---|
[7163] | 515 | |
---|
| 516 | |
---|
| 517 | // *** first do a raw diff of the two gamestates |
---|
| 518 | |
---|
[7758] | 519 | uint8_t *baseDataPtr = GAMESTATE_START(base->data_); |
---|
| 520 | uint8_t *origDataPtr = GAMESTATE_START(this->data_); |
---|
| 521 | uint8_t *origDataEnd = origDataPtr + header_.getDataSize(); |
---|
| 522 | uint8_t *baseDataEnd = baseDataPtr + base->header_.getDataSize(); |
---|
| 523 | // uint32_t origLength = header_.getDataSize(); |
---|
| 524 | // uint32_t baseLength = base->header_.getDataSize(); |
---|
[7163] | 525 | |
---|
[7758] | 526 | // Allocate new space for diffed gamestate |
---|
| 527 | uint32_t newDataSize = header_.getDataSize() + GamestateHeader::getSize() + sizeof(uint32_t)*this->nrOfVariables_; |
---|
| 528 | uint8_t *newData = new uint8_t[newDataSize]; // this is the maximum size needed in the worst case |
---|
| 529 | uint8_t *destDataPtr = GAMESTATE_START(newData); |
---|
[7163] | 530 | |
---|
[7758] | 531 | std::vector<uint32_t>::iterator sizesIt = this->sizes_.begin(); |
---|
[7163] | 532 | |
---|
[7758] | 533 | while( origDataPtr < origDataEnd ) |
---|
[7163] | 534 | { |
---|
| 535 | //iterate through all objects |
---|
| 536 | |
---|
[7758] | 537 | SynchronisableHeader origHeader(origDataPtr); |
---|
[7163] | 538 | |
---|
| 539 | // Find (if possible) the current object in the datastream of the old gamestate |
---|
| 540 | // Start at the current offset position |
---|
[7758] | 541 | if(baseDataPtr == baseDataEnd) |
---|
| 542 | baseDataPtr = GAMESTATE_START(base->data_); |
---|
| 543 | uint8_t* oldBaseDataPtr = baseDataPtr; |
---|
| 544 | |
---|
| 545 | assert(baseDataPtr < baseDataEnd); |
---|
| 546 | assert(destDataPtr < newData + newDataSize); |
---|
| 547 | assert(sizesIt != this->sizes_.end()); |
---|
| 548 | |
---|
| 549 | bool diffedObject = false; |
---|
| 550 | if( findObject(baseDataPtr, baseDataEnd, origHeader) ) |
---|
[7163] | 551 | { |
---|
[7758] | 552 | if( SynchronisableHeader(baseDataPtr).getDataSize()==origHeader.getDataSize() ) |
---|
[7163] | 553 | { |
---|
[7758] | 554 | // COUT(4) << "diffing object in order: " << Synchronisable::getSynchronisable(origHeader.getObjectID())->getIdentifier()->getName() << endl; |
---|
| 555 | diffObject(destDataPtr, origDataPtr, baseDataPtr, origHeader, sizesIt); |
---|
| 556 | diffedObject = true; |
---|
[1701] | 557 | } |
---|
[7758] | 558 | else |
---|
[7163] | 559 | { |
---|
[7758] | 560 | // COUT(4) << "copy object because of different data sizes (1): " << Synchronisable::getSynchronisable(origHeader.getObjectID())->getIdentifier()->getName() << endl; |
---|
| 561 | copyObject(destDataPtr, origDataPtr, baseDataPtr, origHeader, sizesIt); |
---|
| 562 | assert(sizesIt != this->sizes_.end() || origDataPtr==origDataEnd); |
---|
[7163] | 563 | } |
---|
[7758] | 564 | |
---|
[7163] | 565 | } |
---|
[7758] | 566 | else |
---|
[7163] | 567 | { |
---|
[7758] | 568 | assert( baseDataPtr == baseDataEnd ); |
---|
| 569 | baseDataPtr = GAMESTATE_START(base->data_); |
---|
| 570 | if( findObject(baseDataPtr, oldBaseDataPtr, origHeader) ) |
---|
[7163] | 571 | { |
---|
[7758] | 572 | if( SynchronisableHeader(baseDataPtr).getDataSize()==origHeader.getDataSize() ) |
---|
[7163] | 573 | { |
---|
[7758] | 574 | // COUT(4) << "diffing object out of order: " << Synchronisable::getSynchronisable(origHeader.getObjectID())->getIdentifier()->getName() << endl; |
---|
| 575 | diffObject(destDataPtr, origDataPtr, baseDataPtr, origHeader, sizesIt); |
---|
| 576 | diffedObject = true; |
---|
[7163] | 577 | } |
---|
[7758] | 578 | else |
---|
| 579 | { |
---|
| 580 | // COUT(4) << "copy object because of different data sizes (2): " << Synchronisable::getSynchronisable(origHeader.getObjectID())->getIdentifier()->getName() << endl; |
---|
| 581 | copyObject(destDataPtr, origDataPtr, baseDataPtr, origHeader, sizesIt); |
---|
| 582 | assert(sizesIt != this->sizes_.end() || origDataPtr==origDataEnd); |
---|
| 583 | } |
---|
[7163] | 584 | } |
---|
[7758] | 585 | else |
---|
[7163] | 586 | { |
---|
[7758] | 587 | // COUT(4) << "copy object: " << Synchronisable::getSynchronisable(origHeader.getObjectID())->getIdentifier()->getName() << endl; |
---|
| 588 | assert(baseDataPtr == oldBaseDataPtr); |
---|
| 589 | copyObject(destDataPtr, origDataPtr, baseDataPtr, origHeader, sizesIt); |
---|
| 590 | assert(sizesIt != this->sizes_.end() || origDataPtr==origDataEnd); |
---|
[7163] | 591 | } |
---|
| 592 | } |
---|
[1701] | 593 | } |
---|
[7758] | 594 | assert(sizesIt==this->sizes_.end()); |
---|
[1701] | 595 | |
---|
[7163] | 596 | |
---|
[7758] | 597 | Gamestate *g = new Gamestate(newData, getClientID()); |
---|
| 598 | (g->header_) = header_; |
---|
| 599 | g->header_.setBaseID( base->getID() ); |
---|
| 600 | g->header_.setDataSize(destDataPtr - newData - GamestateHeader::getSize()); |
---|
[1751] | 601 | g->flags_=flags_; |
---|
| 602 | g->packetDirection_ = packetDirection_; |
---|
[7163] | 603 | assert(!g->isCompressed()); |
---|
[1701] | 604 | return g; |
---|
[7163] | 605 | } |
---|
[3198] | 606 | |
---|
[7163] | 607 | |
---|
[7758] | 608 | /*Gamestate* Gamestate::diffData(Gamestate *base) |
---|
[3198] | 609 | { |
---|
| 610 | assert(this && base); assert(data_ && base->data_); |
---|
[7758] | 611 | assert(!header_.isCompressed() && !base->header_.isCompressed()); |
---|
| 612 | assert(!header_.isDiffed()); |
---|
[6417] | 613 | |
---|
[3198] | 614 | uint8_t *basep = GAMESTATE_START(base->data_); |
---|
| 615 | uint8_t *gs = GAMESTATE_START(this->data_); |
---|
[7758] | 616 | uint32_t dest_length = header_.getDataSize(); |
---|
[6417] | 617 | |
---|
[3198] | 618 | if(dest_length==0) |
---|
| 619 | return NULL; |
---|
[6417] | 620 | |
---|
[3198] | 621 | uint8_t *ndata = new uint8_t[dest_length*sizeof(uint8_t)+GamestateHeader::getSize()]; |
---|
| 622 | uint8_t *dest = GAMESTATE_START(ndata); |
---|
[6417] | 623 | |
---|
[7758] | 624 | rawDiff( dest, gs, basep, header_.getDataSize(), base->header_.getDataSize() ); |
---|
[3198] | 625 | #ifndef NDEBUG |
---|
| 626 | uint8_t *dest2 = new uint8_t[dest_length]; |
---|
[7758] | 627 | rawDiff( dest2, dest, basep, header_.getDataSize(), base->header_.getDataSize() ); |
---|
[3198] | 628 | assert( memcmp( dest2, gs, dest_length) == 0 ); |
---|
[5929] | 629 | delete dest2; |
---|
[3198] | 630 | #endif |
---|
| 631 | |
---|
| 632 | Gamestate *g = new Gamestate(ndata, getClientID()); |
---|
| 633 | assert(g->header_); |
---|
| 634 | *(g->header_) = *header_; |
---|
[7758] | 635 | g->header_.setDiffed( true ); |
---|
| 636 | g->header_.setBaseID( base->getID() ); |
---|
[3198] | 637 | g->flags_=flags_; |
---|
| 638 | g->packetDirection_ = packetDirection_; |
---|
| 639 | assert(g->isDiffed()); |
---|
| 640 | assert(!g->isCompressed()); |
---|
| 641 | return g; |
---|
[1701] | 642 | } |
---|
| 643 | |
---|
[7163] | 644 | |
---|
| 645 | Gamestate* Gamestate::undiff(Gamestate *base) |
---|
[3198] | 646 | { |
---|
| 647 | assert(this && base); assert(data_ && base->data_); |
---|
[7758] | 648 | assert(!header_.isCompressed() && !base->header_.isCompressed()); |
---|
| 649 | assert(header_.isDiffed()); |
---|
[6417] | 650 | |
---|
[3198] | 651 | uint8_t *basep = GAMESTATE_START(base->data_); |
---|
| 652 | uint8_t *gs = GAMESTATE_START(this->data_); |
---|
[7758] | 653 | uint32_t dest_length = header_.getDataSize(); |
---|
[6417] | 654 | |
---|
[3198] | 655 | if(dest_length==0) |
---|
| 656 | return NULL; |
---|
[6417] | 657 | |
---|
[3198] | 658 | uint8_t *ndata = new uint8_t[dest_length*sizeof(uint8_t)+GamestateHeader::getSize()]; |
---|
| 659 | uint8_t *dest = ndata + GamestateHeader::getSize(); |
---|
[6417] | 660 | |
---|
[7758] | 661 | rawDiff( dest, gs, basep, header_.getDataSize(), base->header_.getDataSize() ); |
---|
[6417] | 662 | |
---|
[3198] | 663 | Gamestate *g = new Gamestate(ndata, getClientID()); |
---|
| 664 | assert(g->header_); |
---|
| 665 | *(g->header_) = *header_; |
---|
[7758] | 666 | g->header_.setDiffed( false ); |
---|
[3198] | 667 | g->flags_=flags_; |
---|
| 668 | g->packetDirection_ = packetDirection_; |
---|
| 669 | assert(!g->isDiffed()); |
---|
| 670 | assert(!g->isCompressed()); |
---|
| 671 | return g; |
---|
| 672 | } |
---|
| 673 | |
---|
| 674 | |
---|
| 675 | void Gamestate::rawDiff( uint8_t* newdata, uint8_t* data, uint8_t* basedata, uint32_t datalength, uint32_t baselength) |
---|
| 676 | { |
---|
| 677 | uint64_t* gd = (uint64_t*)data; |
---|
| 678 | uint64_t* bd = (uint64_t*)basedata; |
---|
| 679 | uint64_t* nd = (uint64_t*)newdata; |
---|
[6417] | 680 | |
---|
[3198] | 681 | unsigned int i; |
---|
| 682 | for( i=0; i<datalength/8; i++ ) |
---|
| 683 | { |
---|
| 684 | if( i<baselength/8 ) |
---|
| 685 | *(nd+i) = *(gd+i) ^ *(bd+i); // xor the data |
---|
| 686 | else |
---|
| 687 | *(nd+i) = *(gd+i); // just copy over the data |
---|
| 688 | } |
---|
| 689 | unsigned int j; |
---|
| 690 | // now process the rest (when datalength isn't a multiple of 4) |
---|
| 691 | for( j = 8*(datalength/8); j<datalength; j++ ) |
---|
| 692 | { |
---|
| 693 | if( j<baselength ) |
---|
| 694 | *(newdata+j) = *(data+j) ^ *(basedata+j); // xor |
---|
| 695 | else |
---|
| 696 | *(newdata+j) = *(data+j); // just copy |
---|
| 697 | } |
---|
| 698 | assert(j==datalength); |
---|
[7758] | 699 | }*/ |
---|
[3198] | 700 | |
---|
[7163] | 701 | |
---|
[7758] | 702 | /*Gamestate* Gamestate::doSelection(unsigned int clientID, unsigned int targetSize){ |
---|
[1907] | 703 | assert(data_); |
---|
[2662] | 704 | std::list<obj>::iterator it; |
---|
[2087] | 705 | |
---|
[1907] | 706 | // allocate memory for new data |
---|
[7758] | 707 | uint8_t *gdata = new uint8_t[header_.getDataSize()+GamestateHeader::getSize()]; |
---|
[1907] | 708 | // create a gamestate out of it |
---|
| 709 | Gamestate *gs = new Gamestate(gdata); |
---|
[2662] | 710 | uint8_t *newdata = gdata + GamestateHeader::getSize(); |
---|
[1907] | 711 | uint8_t *origdata = GAMESTATE_START(data_); |
---|
[2087] | 712 | |
---|
[1907] | 713 | //copy the GamestateHeader |
---|
[2662] | 714 | assert(gs->header_); |
---|
| 715 | *(gs->header_) = *header_; |
---|
[2087] | 716 | |
---|
[2662] | 717 | uint32_t objectOffset; |
---|
| 718 | unsigned int objectsize, destsize=0; |
---|
| 719 | // TODO: Why is this variable not used? |
---|
| 720 | //Synchronisable *object; |
---|
[2087] | 721 | |
---|
[2662] | 722 | //call TrafficControl |
---|
[7758] | 723 | TrafficControl::getInstance()->processObjectList( clientID, header_.getID(), dataVector_ ); |
---|
[2662] | 724 | |
---|
[1907] | 725 | //copy in the zeros |
---|
[3084] | 726 | // std::list<obj>::iterator itt; |
---|
| 727 | // COUT(0) << "myvector contains:"; |
---|
| 728 | // for ( itt=dataVector_.begin() ; itt!=dataVector_.end(); itt++ ) |
---|
[7163] | 729 | // COUT(0) << " " << (*itt).objID; |
---|
[3084] | 730 | // COUT(0) << endl; |
---|
| 731 | for(it=dataVector_.begin(); it!=dataVector_.end();){ |
---|
[2662] | 732 | SynchronisableHeader oldobjectheader(origdata); |
---|
| 733 | SynchronisableHeader newobjectheader(newdata); |
---|
[7163] | 734 | if ( (*it).objSize == 0 ) |
---|
[2662] | 735 | { |
---|
| 736 | ++it; |
---|
| 737 | continue; |
---|
| 738 | } |
---|
[7163] | 739 | objectsize = oldobjectheader.getDataSize()+SynchronisableHeader::getSize(); |
---|
[2662] | 740 | objectOffset=SynchronisableHeader::getSize(); //skip the size and the availableData variables in the objectheader |
---|
[7163] | 741 | if ( (*it).objID == oldobjectheader.getObjectID() ){ |
---|
[2662] | 742 | memcpy(newdata, origdata, objectsize); |
---|
| 743 | ++it; |
---|
[1907] | 744 | }else{ |
---|
[2662] | 745 | newobjectheader = oldobjectheader; |
---|
[2171] | 746 | memset(newdata+objectOffset, 0, objectsize-objectOffset); |
---|
[1907] | 747 | } |
---|
| 748 | newdata += objectsize; |
---|
| 749 | origdata += objectsize; |
---|
[2662] | 750 | destsize += objectsize; |
---|
[1907] | 751 | } |
---|
[2662] | 752 | #ifndef NDEBUG |
---|
| 753 | uint32_t origsize = destsize; |
---|
[7758] | 754 | while ( origsize < header_.getDataSize() ) |
---|
[2662] | 755 | { |
---|
| 756 | SynchronisableHeader oldobjectheader(origdata); |
---|
[7163] | 757 | objectsize = oldobjectheader.getDataSize()+SynchronisableHeader::getSize(); |
---|
[2662] | 758 | origdata += objectsize; |
---|
| 759 | origsize += objectsize; |
---|
[1907] | 760 | } |
---|
[7758] | 761 | assert(origsize==header_.getDataSize()); |
---|
[2662] | 762 | assert(destsize!=0); |
---|
| 763 | #endif |
---|
[7758] | 764 | gs->header_.setDataSize( destsize ); |
---|
[1907] | 765 | return gs; |
---|
[7758] | 766 | }*/ |
---|
[1907] | 767 | |
---|
[2087] | 768 | |
---|
[2662] | 769 | uint32_t Gamestate::calcGamestateSize(int32_t id, uint8_t mode) |
---|
[1701] | 770 | { |
---|
[7163] | 771 | uint32_t size = 0; |
---|
| 772 | uint32_t nrOfVariables = 0; |
---|
[1701] | 773 | // get the start of the Synchronisable list |
---|
[2171] | 774 | ObjectList<Synchronisable>::iterator it; |
---|
[1701] | 775 | // get total size of gamestate |
---|
[7163] | 776 | for(it = ObjectList<Synchronisable>::begin(); it; ++it){ |
---|
[1907] | 777 | size+=it->getSize(id, mode); // size of the actual data of the synchronisable |
---|
[7163] | 778 | nrOfVariables += it->getNrOfVariables(); |
---|
| 779 | } |
---|
| 780 | // COUT(0) << "allocating " << nrOfVariables << " ints" << endl; |
---|
| 781 | this->sizes_.reserve(nrOfVariables); |
---|
[1701] | 782 | return size; |
---|
| 783 | } |
---|
| 784 | |
---|
[7163] | 785 | |
---|
[2662] | 786 | } //namespace packet |
---|
| 787 | } //namespace orxonox |
---|