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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/>.
*/
#ifndef DBC_FILE_LOADER_H
#define DBC_FILE_LOADER_H
#include "Define.h"
#include "Errors.h"
#include "Utilities/ByteConverter.h"
enum DbcFieldFormat
{
FT_NA = 'x', //not used or unknown, 4 byte size
FT_NA_BYTE = 'X', //not used or unknown, byte
FT_STRING = 's', //char*
FT_FLOAT = 'f', //float
FT_INT = 'i', //uint32
FT_BYTE = 'b', //uint8
FT_SORT = 'd', //sorted by this field, field is not included
FT_IND = 'n', //the same, but parsed to data
FT_LOGIC = 'l' //Logical (boolean)
};
class DBCFileLoader
{
public:
DBCFileLoader();
~DBCFileLoader();
bool Load(const char* filename, const char* fmt);
class Record
{
public:
[[nodiscard]] float getFloat(size_t field) const
{
ASSERT(field < file.fieldCount);
float val = *reinterpret_cast<float*>(offset + file.GetOffset(field));
EndianConvert(val);
return val;
}
[[nodiscard]] uint32 getUInt(size_t field) const
{
ASSERT(field < file.fieldCount);
uint32 val = *reinterpret_cast<uint32*>(offset + file.GetOffset(field));
EndianConvert(val);
return val;
}
[[nodiscard]] uint8 getUInt8(size_t field) const
{
ASSERT(field < file.fieldCount);
return *reinterpret_cast<uint8*>(offset + file.GetOffset(field));
}
[[nodiscard]] const char* getString(size_t field) const
{
ASSERT(field < file.fieldCount);
size_t stringOffset = getUInt(field);
ASSERT(stringOffset < file.stringSize);
return reinterpret_cast<char*>(file.stringTable + stringOffset);
}
private:
Record(DBCFileLoader& file_, unsigned char* offset_): offset(offset_), file(file_) { }
unsigned char* offset;
DBCFileLoader& file;
friend class DBCFileLoader;
};
// Get record by id
Record getRecord(size_t id);
[[nodiscard]] uint32 GetNumRows() const { return recordCount; }
[[nodiscard]] uint32 GetRowSize() const { return recordSize; }
[[nodiscard]] uint32 GetCols() const { return fieldCount; }
[[nodiscard]] uint32 GetOffset(size_t id) const { return (fieldsOffset != nullptr && id < fieldCount) ? fieldsOffset[id] : 0; }
[[nodiscard]] bool IsLoaded() const { return data != nullptr; }
char* AutoProduceData(char const* fmt, uint32& count, char**& indexTable);
char* AutoProduceStrings(char const* fmt, char* dataTable);
static uint32 GetFormatRecordSize(const char* format, int32* index_pos = nullptr);
private:
uint32 recordSize;
uint32 recordCount;
uint32 fieldCount;
uint32 stringSize;
uint32* fieldsOffset;
unsigned char* data;
unsigned char* stringTable;
DBCFileLoader(DBCFileLoader const& right) = delete;
DBCFileLoader& operator=(DBCFileLoader const& right) = delete;
};
#endif
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