main.cpp

// ZyLab - Bitwise ops - 1D Cellular Automata
// Original - Loceff, Updates, Edits, Annotations: &
//
// This main method is for your benefit. It will not be tested. But if you use it as
// an example to run your own tests, the likelihood of your Automaton code passing 
// my tests may be higher.
// - &

#include <iostream>
#include <string>
#include <sstream>

using namespace std;

#include "Automaton.h"

// getRows will rewind aut and return its first n generations as a string
// in which successive generations are separated by "\n". Within the strings
// 1 is represented by * and 0 by space.
string getRows(Automaton& aut, int n) {
    char charFor0 = ' ', charFor1 = '*';
    stringstream ss;

    aut.resetToFirstGen();  // rewind
    
    while (--n >= 0) {
        ss << aut.toStringCurrentGen(charFor0, charFor1) << "\n";
        aut.propagateNewGen();
    }
    return ss.str();
}

int main()
{
    int rule;
    string userInput;
        
    cout << "Enter Rule (" << Automaton::MIN_RULE << " - " << Automaton::MAX_RULE << "): ";
    getline(cin, userInput);
    istringstream(userInput) >> rule;
    
    if (rule < Automaton::MIN_RULE || rule > Automaton::MAX_RULE) {
       cerr << "Sorry. That was an invalid rule number." <<endl;
       exit(1);
    }
    
    // Make the automaton and print its first 100 rows on cout
    Automaton aut(rule);
    cout << getRows(aut, 100) << endl;
    
    // TODO - run other tests to cover corner cases, limit checking, etc.
    /* Type your code here */
}