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Rotor.cpp
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Rotor.cpp
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#include <fstream>
#include <iostream>
#include <vector>
#include "Rotor.hpp"
using namespace std;
Rotor::Rotor() {
this->canRotate = false;
this->numRotation = 0;
this->offset = 0;
this->config = vector<int>(26);
}
void Rotor::readfile(char *filename) {
ifstream rfile;
rfile.open(filename, ifstream::in);
if (rfile.good()) {
int index;
int i = 0;
while (rfile >> index) {
config[i] = index;
i++;
}
rfile.close();
} else {
perror("Invalid file");
}
}
int Rotor::rotate(int index) {
return (config[(index + numRotation) % 26] - (offset % 26) + 26) % 26;
}
int Rotor::rotateBackwards(int index) {
for (int i = 0; i < 26; i++) {
if (index == rotate(i)) {
return i;
}
}
return 0;
}