LibHugo/Datreader.cpp at master · BBQGiraffe/LibHugo · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
#include "Datreader.h"

void Datreader::LoadOffsets()
{
    int retval;
    DATOffset offset;
    uint16_t lowestOffset = 0xFFFFFFFF;

    do
    {
        retval = fread(&offset.length, 2, 1, pFile);
        retval = fread(&offset.position, 4, 1, pFile);
        offsets.push_back(offset);
        if (offset.length != 0)
        {

            if (offset.length < lowestOffset)
            {
                lowestOffset = offset.length;
            }
        }
    } while (ftell(pFile) <= lowestOffset && retval > 0);
}

void Datreader::GetFiles(std::string filename)
{
    std::ifstream dat;
    dat.open(filename, std::ios::binary);

    for (int i = 0; i < offsets.size(); i++) {
        DATOffset offset = offsets[i];
        char* buff = new char[offset.length];

        dat.seekg(offset.position);
        dat.read(buff, offset.length);

        data.push_back(DatConent(buff, offset.length));
    }

}

Datreader::Datreader(std::string filename)
{
    pFile = fopen(filename.c_str(), "rb");
    LoadOffsets();
    GetFiles(filename);
}

DatConent Datreader::operator[](int index)
{
	return data[index];
}