//Programmer: Cassidy Guha

//Dates: Start: Friday March 25, 2022, End: Wednesday March 3, 2022

//Project: Mastermind

//Description: This is a program for a game where the computer has a secret colour code that the user is trying to guess by entering in their own colour guesses.

using System;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Welcome to Mastermind!");

        Console.WriteLine();

        Console.WriteLine("In this game, you will be asked to enter in four distinct colour choices (R=Red,G=Green,B=Blue,Y=Yellow,P=Purple,O=Orange)");

        Console.WriteLine();

        Console.WriteLine("Are you ready to play? (Type 'Yes' or 'No')");

        string ready = Console.ReadLine();

​

        if (ready.ToLower()=="yes"){

            goto start;}

        else if(ready.ToLower()=="no") {

            Console.WriteLine("Please re-run the game when you are ready to play!");

            System.Environment.Exit(0);}

​

        start:

        Console.WriteLine();

        Console.WriteLine("First Colour:");

        string G1 = Console.ReadLine(); //GUESS #1 from the user

        Console.WriteLine("Second Colour:");

        string G2 = Console.ReadLine(); //GUESS #2 from the user

        Console.WriteLine("Third Colour:");

        string G3 = Console.ReadLine(); //GUESS #3 from the user

        Console.WriteLine("Four Colour:");

        string G4 = Console.ReadLine(); //GUESS #4 from the user

​

        Console.WriteLine("Please enter a number between 0-100"); //ask user for a number

        double number = Convert.ToDouble(Console.ReadLine());

        string C1,C2,C3,C4;

​

        if (number%5 == 0){ //if the user's number is divisable by 5, then select this set of colours

            C1 = "B";

            C2 = "G";

            C3 = "Y";

            C4 = "P";}

        else if(number%2 == 0){ //if the user's number is divisable by 3, then select this set of colours

            C1 = "R";

            C2 = "G";

            C3 = "B";

            C4 = "O";}

        else{ //if the user's number is not divisable by 3 or 5, default to these colours

            C1 = "Y";

            C2 = "R";

            C3 = "B";

            C4 = "G";}

​

        int correctcolours = 0;

        int correctpositions = 0;

​

        if (G1==C1 || G1==C2 || G1==C3 || G1==C4){ //if colour of guess 1 matches any of the secret colours, add 1 to correct colours

            correctcolours+=1;}

        if (G2==C1 || G2==C2 || G2==C3 || G2==C4){ //if colour of guess 2 matches any of the secret colours, add 1 to correct colours

            correctcolours+=1;}

        if (G3==C1 || G3==C2 || G3==C3 || G3==C4){ //if colour of guess 3 matches any of the secret colours, add 1 to correct colours

            correctcolours+=1;

        if (G4==C1 || G4==C2 || G4==C3 || G4==C4){ //if colour of guess 4 matches any of the secret colours, add 1 to correct colours

            correctcolours+=1;}

        Console.WriteLine();

        Console.WriteLine("You have " + correctcolours + " correct colours.");} //Tell user how many correct colours they have guessed

​

        if (G1==C1) //if guess 1 is the same as secret colour 1, add 1 to correct positions

            correctpositions+=1;

        if (G2==C2)

            correctpositions+=1; //if guess 2 is the same as secret colour 2, add 1 to correct positions

        if (G3==C3)

            correctpositions+=1; //if guess 3 is the same as secret colour 3, add 1 to correct positions

        if (G4==C4)

            correctpositions+=1; //if guess 4 is the same as secret colour 4, add 1 to correct positions

​

        Console.WriteLine();

        Console.WriteLine("You have " + correctpositions + " correct positions."); //Tell the user how many correct positions they have

​

        string again;

​

        if (correctpositions==4 && correctcolours==4){ //if the user has guess 4 correct colours and 4 correct positions, tell them they have completed the game

            Console.WriteLine();

            Console.WriteLine("Congratulations! You have completed the game!");}

        else{

            Console.WriteLine();

            Console.WriteLine("Would you like to try again? (Type 'Yes' or 'No')"); //if they have not solved the game, ask if they want to play again

            again = Console.ReadLine();

            if (again.ToLower()=="yes")

                goto start;}

​

​

    }

}