contrib/extractor/loadlib/adt.cpp

   1 /*
   2  * Copyright (C) 2005-2013 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 #define _CRT_SECURE_NO_DEPRECATE
  20
  21 #include "adt.h"
  22
  23 // Helper
  24 int holetab_h[4] = {0x1111, 0x2222, 0x4444, 0x8888};
  25 int holetab_v[4] = {0x000F, 0x00F0, 0x0F00, 0xF000};
  26
  27 bool isHole(int holes, int i, int j)
  28 {
  29     int testi = i / 2;
  30     int testj = j / 4;
  31     if (testi > 3) testi = 3;
  32     if (testj > 3) testj = 3;
  33     return (holes & holetab_h[testi] & holetab_v[testj]) != 0;
  34 }
  35
  36 //
  37 // Adt file loader class
  38 //
  39 ADT_file::ADT_file()
  40 {
  41     a_grid = 0;
  42 }
  43
  44 ADT_file::~ADT_file()
  45 {
  46     free();
  47 }
  48
  49 void ADT_file::free()
  50 {
  51     a_grid = 0;
  52     FileLoader::free();
  53 }
  54
  55 //
  56 // Adt file check function
  57 //
  58 bool ADT_file::prepareLoadedData()
  59 {
  60     // Check parent
  61     if (!FileLoader::prepareLoadedData())
  62         return false;
  63
  64     // Check and prepare MHDR
  65     a_grid = (adt_MHDR *)(GetData() + 8 + version->size);
  66     if (!a_grid->prepareLoadedData())
  67         return false;
  68
  69     // funny offsets calculations because there is no mapping for them and they have variable lengths
  70     uint8* ptr = (uint8*)a_grid + a_grid->size + 8;
  71     uint32 mcnk_count = 0;
  72     memset(cells, 0, ADT_CELLS_PER_GRID * ADT_CELLS_PER_GRID * sizeof(adt_MCNK*));
  73     while (ptr < GetData() + GetDataSize())
  74     {
  75         uint32 header = *(uint32*)ptr;
  76         uint32 size = *(uint32*)(ptr + 4);
  77         if (header == 'MCNK')
  78         {
  79             cells[mcnk_count / ADT_CELLS_PER_GRID][mcnk_count % ADT_CELLS_PER_GRID] = (adt_MCNK*)ptr;
  80             ++mcnk_count;
  81         }
  82
  83         // move to next chunk
  84         ptr += size + 8;
  85     }
  86
  87     if (mcnk_count != ADT_CELLS_PER_GRID * ADT_CELLS_PER_GRID)
  88         return false;
  89
  90     return true;
  91 }
  92
  93 bool adt_MHDR::prepareLoadedData()
  94 {
  95     if (fcc != 'MHDR')
  96         return false;
  97
  98     if (size != sizeof(adt_MHDR) - 8)
  99         return false;
 100
 101     // Check and prepare MCIN
 102     if (offsMCIN && !getMCIN()->prepareLoadedData())
 103         return false;
 104
 105     // Check and prepare MH2O
 106     if (offsMH2O && !getMH2O()->prepareLoadedData())
 107         return false;
 108
 109     return true;
 110 }
 111
 112 bool adt_MCIN::prepareLoadedData()
 113 {
 114     if (fcc != 'MCIN')
 115         return false;
 116
 117     // Check cells data
 118     for (int i = 0; i < ADT_CELLS_PER_GRID; i++)
 119         for (int j = 0; j < ADT_CELLS_PER_GRID; j++)
 120             if (cells[i][j].offsMCNK && !getMCNK(i, j)->prepareLoadedData())
 121                 return false;
 122
 123     return true;
 124 }
 125
 126 bool adt_MH2O::prepareLoadedData()
 127 {
 128     if (fcc != 'MH2O')
 129         return false;
 130
 131     // Check liquid data
 132 //    for (int i=0; i<ADT_CELLS_PER_GRID;i++)
 133 //        for (int j=0; j<ADT_CELLS_PER_GRID;j++)
 134
 135     return true;
 136 }
 137
 138 bool adt_MCNK::prepareLoadedData()
 139 {
 140     if (fcc != 'MCNK')
 141         return false;
 142
 143     // Check height map
 144     if (offsMCVT && !getMCVT()->prepareLoadedData())
 145         return false;
 146     // Check liquid data
 147     if (offsMCLQ && !getMCLQ()->prepareLoadedData())
 148         return false;
 149
 150     return true;
 151 }
 152
 153 bool adt_MCVT::prepareLoadedData()
 154 {
 155     if (fcc != 'MCVT')
 156         return false;
 157
 158     if (size != sizeof(adt_MCVT) - 8)
 159         return false;
 160
 161     return true;
 162 }
 163
 164 bool adt_MCLQ::prepareLoadedData()
 165 {
 166     if (fcc != 'MCLQ')
 167         return false;
 168
 169     return true;
 170 }