Seems to work. My difficulty level remains as is for my nephew to play with 
Oh and I need to add more comments…
#include <iostream>
#include <ctime>
void PrintIntroduction(int Difficulty)
{
std::cout << "\n";
std::cout << "\n";
std::cout << " SPACE CARGO WAGON \n";
std::cout << " AI \n";
std::cout << " _______ / \\_________\n";
std::cout << " | __________________ |\n";
std::cout << " || AUTO PILOT |_|\n";
std::cout << " || |O|\n";
std::cout << " ||.;',`' SELF .`~,;'|O|\n";
std::cout << " ||':'' DESTRUCT :'`'|o|\n";
std::cout << " ||.:',~; CODE .,:'`;|_|\n";
std::cout << " || | |\n";
std::cout << " || CARGO: X100TR | |\n";
std::cout << " |'------------------' |\n";
std::cout << "----'---------------------'----\n";
std::cout << "\n\n";
std::cout << "You have just boarded an abandoned space cargo wagon which is in auto destruct mode." << std:: endl;
std::cout << "You need to enter the correct Level " << Difficulty << " codes to stop the auto destruct and get the cargo." << std::endl;
}
bool PlayGame(int Difficulty)
{
PrintIntroduction(Difficulty);
const int CodeA = rand() % Difficulty + 1;
const int CodeB = rand() % Difficulty + 1;
const int CodeC = rand() % Difficulty + 1;
const int CodeSum = CodeA + CodeB + CodeC;
const int CodeProduct = CodeA * CodeB * CodeC;
std::cout << std::endl;
std::cout << "The onboard computer, SCWAI, says \'To stop auto destruct, enter the correct three digits.\'\n";
std::cout << "The codes add up to: " << CodeSum << "\n";
std::cout << "The codes multiply to give: " << CodeProduct << "\n";
int GuessA, GuessB, GuessC, GuessSum, GuessProduct;
const int TotalTries = 3;
int TriesRemaining = 0;
while(TriesRemaining < TotalTries)
{
std::cin >> GuessA >> GuessB >> GuessC;
std::cout << "You entered " << GuessA << " " << GuessB << " " << GuessC << "\n";
GuessSum = GuessA + GuessB + GuessC;
GuessProduct = GuessA * GuessB * GuessC;
std::cout << "The sum is " << GuessSum << "\n";
std::cout << "The product is " << GuessProduct << "\n";
if(GuessSum == CodeSum && GuessProduct == CodeProduct)
{
std::cout << "Woop Woop! Self destruct for Level " << Difficulty << " has been disabled.\n";
return true;
}
else
{
++TriesRemaining;
std::cout << "Incorrect. Try again. You have " << TotalTries - TriesRemaining << " tries remaining. \n";
}
}
return false;
}
int main()
{
srand(time(NULL));
int LevelDifficulty = 1;
const int MaxDifficulty = 5;
while (LevelDifficulty <= MaxDifficulty)
{
bool bLevelComplete = PlayGame(LevelDifficulty);
std::cin.clear();
std::cin.ignore();
if(bLevelComplete)
{
// increase the level difficulty
++LevelDifficulty;
}
else
{
std::cout << "YOU LOSE SUCKER - KABOOMMMMMM";
return 0;
}
}
//std::cout << "YOU GET THE CARGO!";
return 0;
}
