109 lines
3.0 KiB
C++
109 lines
3.0 KiB
C++
/*
|
|
* Copyright (C) 2008-2018 TrinityCore <https://www.trinitycore.org/>
|
|
* Copyright (C) 2005-2011 MaNGOS <http://getmangos.com/>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#define _CRT_SECURE_NO_DEPRECATE
|
|
|
|
#include "dbcfile.h"
|
|
|
|
DBCFile::DBCFile(HANDLE file) :
|
|
_file(file), _data(nullptr), _stringTable(nullptr)
|
|
{
|
|
}
|
|
|
|
bool DBCFile::open()
|
|
{
|
|
char header[4];
|
|
unsigned int na, nb, es, ss;
|
|
|
|
DWORD readBytes = 0;
|
|
SFileReadFile(_file, header, 4, &readBytes, nullptr);
|
|
if (readBytes != 4) // Number of records
|
|
return false;
|
|
|
|
if (header[0] != 'W' || header[1] != 'D' || header[2] != 'B' || header[3] != 'C')
|
|
return false;
|
|
|
|
SFileReadFile(_file, &na, 4, &readBytes, nullptr);
|
|
if (readBytes != 4) // Number of records
|
|
return false;
|
|
|
|
SFileReadFile(_file, &nb, 4, &readBytes, nullptr);
|
|
if (readBytes != 4) // Number of fields
|
|
return false;
|
|
|
|
SFileReadFile(_file, &es, 4, &readBytes, nullptr);
|
|
if (readBytes != 4) // Size of a record
|
|
return false;
|
|
|
|
SFileReadFile(_file, &ss, 4, &readBytes, nullptr);
|
|
if (readBytes != 4) // String size
|
|
return false;
|
|
|
|
_recordSize = es;
|
|
_recordCount = na;
|
|
_fieldCount = nb;
|
|
_stringSize = ss;
|
|
if (_fieldCount * 4 != _recordSize)
|
|
return false;
|
|
|
|
_data = new unsigned char[_recordSize * _recordCount + _stringSize];
|
|
_stringTable = _data + _recordSize*_recordCount;
|
|
|
|
size_t data_size = _recordSize * _recordCount + _stringSize;
|
|
SFileReadFile(_file, _data, data_size, &readBytes, nullptr);
|
|
if (readBytes != data_size)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
DBCFile::~DBCFile()
|
|
{
|
|
delete [] _data;
|
|
}
|
|
|
|
DBCFile::Record DBCFile::getRecord(size_t id)
|
|
{
|
|
assert(_data);
|
|
return Record(*this, _data + id*_recordSize);
|
|
}
|
|
|
|
size_t DBCFile::getMaxId()
|
|
{
|
|
assert(_data);
|
|
|
|
size_t maxId = 0;
|
|
for(size_t i = 0; i < getRecordCount(); ++i)
|
|
if (maxId < getRecord(i).getUInt(0))
|
|
maxId = getRecord(i).getUInt(0);
|
|
|
|
return maxId;
|
|
}
|
|
|
|
DBCFile::Iterator DBCFile::begin()
|
|
{
|
|
assert(_data);
|
|
return Iterator(*this, _data);
|
|
}
|
|
|
|
DBCFile::Iterator DBCFile::end()
|
|
{
|
|
assert(_data);
|
|
return Iterator(*this, _stringTable);
|
|
}
|