src/game/tools.cpp

   1 /*
   2  * Copyright (C) 2005-2008 MaNGOS <http://getmangos.com/>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #include "Tools.h"
  20
  21 // THIS CAN BE A LOT FASTER
  22 bool readGUID(WorldPacket & data, uint64& guid)
  23 {
  24     if(data.rpos()+1 > data.size())
  25         return false;
  26
  27     uint8 guidmark=0;
  28     uint8 bit;
  29     uint8 shiftdata=0x1;
  30     uint64 Temp=0;
  31
  32     guid = 0;
  33
  34     data >> guidmark;
  35     for(int i=0;i<8;i++)
  36     {
  37         if(guidmark & shiftdata)
  38         {
  39             Temp = 0;
  40
  41             if(data.rpos()+1 > data.size())
  42                 return false;
  43
  44             data >> bit;
  45             Temp = bit;
  46             Temp <<= i*8;
  47             guid |= Temp;
  48         }
  49         shiftdata=shiftdata<<1;
  50     }
  51
  52     return true;
  53 }
  54
  55 void  writeGUID(WorldPacket & data, uint64 & guid)
  56 {
  57     uint8 RAWmask = 0;
  58     uint8 PackedGuid[8] = {0,0,0,0,0,0,0,0};
  59
  60     int j = 1;
  61     uint8 * test = (uint8*)&guid;
  62
  63     if (*test)
  64     {
  65         PackedGuid[j] = *test;
  66         RAWmask |= 1;
  67         ++j;
  68     }
  69     if (*(test+1))
  70     {
  71         PackedGuid[j] = *(test+1);
  72         RAWmask |= 2;
  73         ++j;
  74     }
  75     if (*(test+2))
  76     {
  77         PackedGuid[j] = *(test+2);
  78         RAWmask |= 4;
  79         ++j;
  80     }
  81     if (*(test+3))
  82     {
  83         PackedGuid[j] = *(test+3);
  84         RAWmask |= 8;
  85         ++j;
  86     }
  87     if (*(test+4))
  88     {
  89         PackedGuid[j] = *(test+4);
  90         RAWmask |= 16;
  91         ++j;
  92     }
  93     if (*(test+5))
  94     {
  95         PackedGuid[j] = *(test+5);
  96         RAWmask |= 32;
  97         ++j;
  98     }
  99     if (*(test+6))
 100     {
 101         PackedGuid[j] = *(test+6);
 102         RAWmask |= 64;
 103         ++j;
 104     }
 105     if (*(test+7))
 106     {
 107         PackedGuid[j] = *(test+7);
 108         RAWmask |= 128;
 109         ++j;
 110     }
 111     PackedGuid[0] = RAWmask;
 112
 113     data.append(PackedGuid,j);
 114 }