athena/src/SkywardSwordFileReader.cpp
2014-02-26 21:46:26 -08:00

69 lines
2.1 KiB
C++

#include "SkywardSwordFileReader.hpp"
#include "SkywardSwordFile.hpp"
#include "SkywardSwordQuest.hpp"
#include "InvalidOperationException.hpp"
#include <iostream>
namespace zelda
{
namespace io
{
SkywardSwordFileReader::SkywardSwordFileReader(Uint8* data, Uint64 length)
: base(data, length)
{
base::setEndianess(BigEndian);
}
SkywardSwordFileReader::SkywardSwordFileReader(const std::string& filename)
: base(filename)
{
base::setEndianess(BigEndian);
}
SkywardSwordFile* SkywardSwordFileReader::read()
{
SkywardSwordFile* file = NULL;
try
{
if (base::length() != 0xFBE0)
throw zelda::error::InvalidOperationException("SSFileReader::read -> File not the expected size of 0xFBE0");
Uint32 magic = base::readUInt32();
if (magic != SkywardSwordFile::USMagic && magic != SkywardSwordFile::JAMagic && magic != SkywardSwordFile::EUMagic)
throw zelda::error::InvalidOperationException("SSFileReader::read -> Not a valid Skyward Sword save file");
base::seek(0x01C, base::Beginning);
Uint32 headerSize = base::readUInt32(); // Seems to be (headerSize - 1)
if (headerSize != 0x1D)
throw zelda::error::InvalidOperationException("SSFileHeader::read -> Invalid header size, Corrupted data?");
// Time to read in each slot
file = new SkywardSwordFile;
file->setRegion((magic == SkywardSwordFile::USMagic ? NTSCURegion : (magic == SkywardSwordFile::JAMagic ? NTSCJRegion : PALRegion)));
for (int i = 0; i < 3; i++)
{
SkywardSwordQuest* q = new SkywardSwordQuest((Uint8*)base::readBytes(0x53C0), 0x53C0);
Uint64 pos = base::position();
// seek to the skip data for this particular quest
base::seek(0xFB60 + (i * 0x24), base::Beginning);
q->setSkipData(base::readUBytes(0x24));
base::seek(pos, base::Beginning);
file->addQuest(q);
}
}
catch(...)
{
delete file;
file = NULL;
throw;
}
return file;
}
} // io
} // zelda