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/*
* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License as published by the
* Free Software Foundation; either version 3 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 Affero 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/>.
*/
#include "dbcfile.h"
#include "mpq_libmpq04.h"
#undef min
#undef max
#include <cstdio>
DBCFile::DBCFile(std::string filename):
filename(std::move(filename)), recordSize(0), recordCount(0), fieldCount(0), stringSize(0), data(nullptr), stringTable(nullptr)
{
}
bool DBCFile::open()
{
MPQFile f(filename.c_str());
// Need some error checking, otherwise an unhandled exception error occurs
// if people screw with the data path.
if (f.isEof() == true)
return false;
unsigned char header[4];
unsigned int na, nb, es, ss;
f.read(header, 4); // File Header
if (header[0] != 'W' || header[1] != 'D' || header[2] != 'B' || header[3] != 'C')
{
f.close();
data = nullptr;
printf("Critical Error: An error occured while trying to read the DBCFile %s.", filename.c_str());
return false;
}
//assert(header[0]=='W' && header[1]=='D' && header[2]=='B' && header[3] == 'C');
f.read(&na, 4); // Number of records
f.read(&nb, 4); // Number of fields
f.read(&es, 4); // Size of a record
f.read(&ss, 4); // String size
recordSize = es;
recordCount = na;
fieldCount = nb;
stringSize = ss;
//assert(fieldCount*4 == recordSize);
assert(fieldCount * 4 >= recordSize);
data = new unsigned char[recordSize * recordCount + stringSize];
stringTable = data + recordSize * recordCount;
f.read(data, recordSize * recordCount + stringSize);
f.close();
return true;
}
DBCFile::~DBCFile()
{
delete [] data;
}
DBCFile::Record DBCFile::getRecord(std::size_t id)
{
assert(data);
return Record(*this, data + id * recordSize);
}
DBCFile::Iterator DBCFile::begin()
{
assert(data);
return Iterator(*this, data);
}
DBCFile::Iterator DBCFile::end()
{
assert(data);
return Iterator(*this, stringTable);
}
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