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118 lines
3.3 KiB
C++
118 lines
3.3 KiB
C++
/**
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* This code is part of MaNGOS. Contributor & Copyright details are in AUTHORS/THANKS.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#define _CRT_SECURE_NO_DEPRECATE
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#include "dbcfile.h"
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DBCFile::DBCFile(HANDLE mpq, const char* filename) :
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_mpq(mpq), _filename(filename), _file(NULL), _data(NULL), _stringTable(NULL)
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{
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}
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bool DBCFile::open()
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{
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if (!SFileOpenFileEx(_mpq, _filename, SFILE_OPEN_PATCHED_FILE, &_file))
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return false;
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char header[4];
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unsigned int na, nb, es, ss;
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DWORD readBytes = 0;
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SFileReadFile(_file, header, 4, &readBytes, NULL);
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if (readBytes != 4) // Number of records
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return false;
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if (header[0] != 'W' || header[1] != 'D' || header[2] != 'B' || header[3] != 'C')
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return false;
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readBytes = 0;
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SFileReadFile(_file, &na, 4, &readBytes, NULL);
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if (readBytes != 4) // Number of records
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return false;
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readBytes = 0;
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SFileReadFile(_file, &nb, 4, &readBytes, NULL);
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if (readBytes != 4) // Number of fields
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return false;
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readBytes = 0;
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SFileReadFile(_file, &es, 4, &readBytes, NULL);
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if (readBytes != 4) // Size of a record
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return false;
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readBytes = 0;
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SFileReadFile(_file, &ss, 4, &readBytes, NULL);
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if (readBytes != 4) // String size
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return false;
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_recordSize = es;
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_recordCount = na;
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_fieldCount = nb;
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_stringSize = ss;
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if (_fieldCount * 4 != _recordSize)
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return false;
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_data = new unsigned char[_recordSize * _recordCount + _stringSize];
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_stringTable = _data + _recordSize * _recordCount;
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size_t data_size = _recordSize * _recordCount + _stringSize;
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readBytes = 0;
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SFileReadFile(_file, _data, data_size, &readBytes, NULL);
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if (readBytes != data_size)
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return false;
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return true;
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}
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DBCFile::~DBCFile()
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{
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delete [] _data;
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if (_file != NULL)
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SFileCloseFile(_file);
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}
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DBCFile::Record DBCFile::getRecord(size_t id)
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{
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assert(_data);
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return Record(*this, _data + id * _recordSize);
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}
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size_t DBCFile::getMaxId()
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{
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assert(_data);
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size_t maxId = 0;
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for (size_t i = 0; i < getRecordCount(); ++i)
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if (maxId < getRecord(i).getUInt(0))
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maxId = getRecord(i).getUInt(0);
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return maxId;
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}
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DBCFile::Iterator DBCFile::begin()
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{
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assert(_data);
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return Iterator(*this, _data);
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}
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DBCFile::Iterator DBCFile::end()
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{
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assert(_data);
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return Iterator(*this, _stringTable);
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}
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