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This is a rock, paper, scissor, lizard, spock game. The computer's decision making is set up in the class and all input/output must take place in main. I am struggling with a few things: Setting up a score keeper - unsure how to keep score by comparing the output of the computer class and the user input. As you can see I have a GetScore function but I am lost as to what to put inside of it when there aren't any global variables. I would be able to do this if all the variables were global but I heard that's bad practice so I am shying away from that. Secondly, how to terminate the game when the game reaches 3, 5 or 7 rounds. Thank you for your time.

  #include <string>
    #include <iostream>
    using namespace std;

    class ComputersChoice { //Class that contains the random number function for the AI player
        private:
            int randNum;

        public:

            ComputersChoice() {
                randNum = value();
            }
            int GetChoice() {
                return randNum;
            }
            int value() {
                randNum = rand() % 5 + 1;
                return randNum;
            }

            void printResult() {
            if (randNum == 1) {
                cout <<"The computer chose rock. ";
            }

            else if (randNum == 2) {
                cout<<"The computer chose paper. ";
            }

            else if (randNum == 3) {
                cout<<"The computer chose scissors. ";
            }

            else if (randNum == 4) {
                cout<<"The computer chose lizard. ";
            }    

            else {
                cout<<"The computer chose spock. ";
            }    

            }       
    };

    //How many rounds does the user want to play function
    int GetRounds() {  

        bool isValid = false;
        int rounds = 0;

        while (!isValid) {

        cout<<"Do you want to play 3, 5 or 7 rounds?" << endl;
        cin>>rounds;

        switch(rounds) {
            case 3:
            case 5: 
            case 7:
               isValid = true;
               break;
            default:
                cout<<"Invalid input. Enter 3, 5 or 7."<<endl;
                break;

    }

    }

        cout<<"You picked the best of " << rounds << " rounds." << endl;
            return rounds;

    }    

    //User input
    int GetUser() {

    int user_choice = 0;

    bool isValid = false;

    while (!isValid) {

    cout<<"Enter 1 for rock, 2 for paper, 3 for scissors, 4 for lizard, 5 for spock." << endl;
    cin>>user_choice;

    switch(user_choice) {
        case 1:
            isValid = true;
            cout<<"You chose rock. ";
            break;
        case 2: 
            isValid = true;
            cout<<"You chose paper. ";
            break;
        case 3:
            isValid = true;
            cout<<"You chose scissors. ";
            break;
           break;
        case 4:
            isValid = true;
            cout<<"You chose lizard. ";
            break;
        case 5:
            isValid = true;
            cout<<"You chose spock. ";
            break;
        default:
            cout<<"Invalid input."<<endl;
            break;
}
}
}

    int GetScore() {
        int compScore = 0;
        int humanScore = 0;

    }

    int main() {
        GetRounds();

        for (int i = 1; i <= 7; i++) {
        ComputersChoice A;
        srand(time(NULL));
        GetUser();
        A.printResult();

        cout<<"This was round " << i << "." << " On to round " << i + 1 << "." << endl;

    }

    }

Edited by Joe_29

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Last Post by rproffitt
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The way that he did it, I would be able to do it that way too. What's catching me off guard is the computer class and the user input function and catching the information from them to create a score function as well as a function that compares user input to the computers'.

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When you can't crack the problem, you break the problem down to smaller pieces.

Catching the information from the user is not something I worry about when I need a score function. Same be told about comparing choices.
Work each area at a time.

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