#include #include #include #include // enter "rock", "paper", or "scissors" and see if you beat the computer enum class Choices { Rock, // 0 Paper, // 1 Scissors, // 2 None // 3 }; void GetPlayerChoice(Choices& choice); void GetComputerChoice(Choices& choice); bool DecideWinner(Choices& pChoice, Choices& pcChoice); void DisplayWinner(bool playerWon, Choices pChoice, Choices pcChoice); std::string choiceNames[] = {"Rock", "Paper", "Scissors", "None"}; int main() { srand(time(NULL)); Choices playerChoice = Choices::None; Choices computerChoice = Choices::None; // get input and convert to Choices GetPlayerChoice(playerChoice); // get the computer's choice GetComputerChoice(computerChoice); std::cout << "Player choice = " << choiceNames[static_cast(playerChoice)] << std::endl; std::cout << "Computer choice = " << choiceNames[static_cast(computerChoice)] << std::endl; // compare player's choice and computer's bool didPlayerWin = false; didPlayerWin = DecideWinner(playerChoice, computerChoice); // announce the winner DisplayWinner(didPlayerWin, playerChoice, computerChoice); return 0; } void GetPlayerChoice(Choices& choice) { std::string inputStr = ""; getline(std::cin, inputStr); if (inputStr[0] == 'r' || inputStr[0] == 'R') { choice = Choices::Rock; } else if (inputStr[0] == 'p' || inputStr[0] == 'P') { choice = Choices::Paper; } else if (inputStr[0] == 's' || inputStr[0] == 'S') { choice = Choices::Scissors; } else if (inputStr.length() == 0) { std::cout << "You must enter something, silly.\n"; } else { std::cout << "Your input was not one of the three choices. Try again!\n"; } return; } void GetComputerChoice(Choices& choice) { choice = static_cast(rand() % 3); return; } bool DecideWinner(Choices& pChoice, Choices& pcChoice) { int player = static_cast(pChoice); int computer = static_cast(pcChoice); int result = player - computer; if (result == 1 || result == -2) { return true; } else { return false; } return false; } void DisplayWinner(bool playerWon, Choices pChoice, Choices pcChoice) { std::string choiceNames[] = {"Rock", "Paper", "Scissors", "None"}; std::cout << std::endl; if (playerWon) { std::cout << choiceNames[static_cast(pChoice)] << " beats "; std::cout << choiceNames[static_cast(pcChoice)] << "\n\n"; } else if (!playerWon && pChoice == pcChoice) { std::cout << choiceNames[static_cast(pChoice)] << " is the same as "; std::cout << choiceNames[static_cast(pcChoice)] << "\n\n"; } else { std::cout << choiceNames[static_cast(pcChoice)] << " beats "; std::cout << choiceNames[static_cast(pChoice)] << "\n\n"; } if (playerWon) { std::cout << "Congratulations! You won! Please leave a like if you enjoyed playing :)\n"; } else if (!playerWon && pChoice == pcChoice) { std::cout << "Wow, it was a tie! Play again to see if you can win.\n"; } else { std::cout << "Unlucky for you, but please try again!"; std::cout << "And don't forget to like, if you enjoyed it :)\n"; } }

Rock, Paper, Scissors game