S3_Cpp/Aufg9/DiabloByteReader.cpp

#include <fstream>
#include <iostream>

template <typename typ1>
typ1 readFromStream(std::ifstream &stream, char *dest) {
    if (stream.is_open()) {
        stream.read(dest, sizeof(char[1024]));
        typ1 *ptr = reinterpret_cast<typ1 *>(dest);
        return std::move(*ptr);
    }
    else {
        std::runtime_error("Could not read from File!");
    }
}

void Aufg9Main() {
    char *dest = new char[1024];

    try {
        std::string fileName = "../Aufg9/IO-Files/charakter.d2s";
        std::ifstream stream(fileName);
        readFromStream<long>(stream, dest);

        // Name
        char *byte20 = &dest[20];
        std::cout << "Name: ";
        for (int i = 0; i < 16; i++) {
            // std::cout << byte20[i];
            std::cout << dest[20 + i];
        }
        std::cout << std::endl;

        // Status
        char* byte36 = &dest[36];
        std::cout << "Status: " << (((int)(*byte36))%8)/4 << std::endl; // geh zu Byte 36, lies genau 1 byte, interpretiere es als int, berechne mod 8 -> wegwerfen der linken Bits, /4 -> wegwerfen der rechten beiden Bits -> Tada, nur das 3. Bit von Rechts bleibt übrig
        // 0 -> Player is not HardCore?

        // Klasse
        bool *byte40 = (bool*) &dest[40];
        std::cout << "Klasse: " << byte40[0] << std::endl;
        // 2 -> Necromancer

        // Level
        bool *byte43 = (bool*) &dest[43];
        std::cout << "Level: " << byte43[0] << std::endl;

    } catch (const std::exception &e) {
        std::cout << e.what() << std::endl;
    }
}