mirror of
https://github.com/araxiaonline/TrinityCore.git
synced 2026-06-13 11:43:18 -04:00
92 lines
2.7 KiB
C++
92 lines
2.7 KiB
C++
/*
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* Copyright (C) 2008-2013 TrinityCore <http://www.trinitycore.org/>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* 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 "ChunkedData.h"
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#include "MPQManager.h"
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#include "Utils.h"
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#include <string>
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ChunkedData::ChunkedData(Stream* stream, uint32 maxLength, uint32 chunksHint /*= 300*/ ) :
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_Stream(stream)
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{
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if (!_Stream)
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return;
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Load(maxLength, chunksHint);
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}
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ChunkedData::ChunkedData( const std::string& file, uint32 chunksHint /*= 300*/ )
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{
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_Stream = MPQHandler->GetFile(file);
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if (!_Stream)
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return;
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Load(0, chunksHint);
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}
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void ChunkedData::Load( uint32 maxLength, uint32 chunksHint )
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{
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if (!maxLength)
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maxLength = _Stream->GetSize();
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Chunks.reserve(chunksHint);
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uint32 baseOffset = _Stream->GetPos();
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uint32 calcOffset = 0;
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while ((calcOffset + baseOffset) < _Stream->GetSize() && (calcOffset < maxLength))
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{
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char nameBytes[5];
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_Stream->Read(nameBytes, sizeof(char) * 4);
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nameBytes[4] = '\0';
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std::string name = std::string(nameBytes);
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name = std::string(name.rbegin(), name.rend());
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uint32 length = _Stream->Read<uint32>();
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calcOffset += 8;
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Chunks.push_back(new Chunk(name.c_str(), length, calcOffset + baseOffset, _Stream));
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calcOffset += length;
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// save an extra seek at the end
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if ((calcOffset + baseOffset) < _Stream->GetSize() && calcOffset < maxLength)
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_Stream->Seek(length, SEEK_CUR);
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}
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}
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int ChunkedData::GetFirstIndex( const std::string& name )
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{
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for (uint32 i = 0; i < Chunks.size(); ++i)
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if (Chunks[i]->Name == name)
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return i;
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return -1;
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}
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Chunk* ChunkedData::GetChunkByName( const std::string& name )
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{
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for (uint32 i = 0; i < Chunks.size(); ++i)
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if (Chunks[i]->Name == name)
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return Chunks[i];
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return NULL;
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}
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ChunkedData::~ChunkedData()
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{
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for (std::vector<Chunk*>::iterator itr = Chunks.begin(); itr != Chunks.end(); ++itr)
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delete *itr;
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Chunks.clear();
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/* WorldModelGroup Data and SubData share the same _Stream so it's deleted twice and it crashes
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if (_Stream)
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delete _Stream;*/
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}
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