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https://github.com/mod-playerbots/azerothcore-wotlk.git
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95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
/*
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* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
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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, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "dbcfile.h"
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#include "mpq_libmpq04.h"
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#undef min
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#undef max
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#include <cstdio>
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DBCFile::DBCFile(std::string filename):
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filename(std::move(filename)), recordSize(0), recordCount(0), fieldCount(0), stringSize(0), data(nullptr), stringTable(nullptr)
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{
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}
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bool DBCFile::open()
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{
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MPQFile f(filename.c_str());
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// Need some error checking, otherwise an unhandled exception error occurs
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// if people screw with the data path.
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if (f.isEof() == true)
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return false;
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unsigned char header[4];
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unsigned int na, nb, es, ss;
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f.read(header, 4); // File Header
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if (header[0] != 'W' || header[1] != 'D' || header[2] != 'B' || header[3] != 'C')
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{
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f.close();
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data = nullptr;
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printf("Critical Error: An error occured while trying to read the DBCFile %s.", filename.c_str());
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return false;
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}
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//assert(header[0]=='W' && header[1]=='D' && header[2]=='B' && header[3] == 'C');
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f.read(&na, 4); // Number of records
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f.read(&nb, 4); // Number of fields
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f.read(&es, 4); // Size of a record
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f.read(&ss, 4); // String size
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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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//assert(fieldCount*4 == recordSize);
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assert(fieldCount * 4 >= recordSize);
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data = new unsigned char[recordSize * recordCount + stringSize];
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stringTable = data + recordSize * recordCount;
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f.read(data, recordSize * recordCount + stringSize);
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f.close();
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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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}
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DBCFile::Record DBCFile::getRecord(std::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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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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