CS 0007 – Project 4: Mastermind

Due: Friday, March 25^th 2005

Your fourth project is to implement the game of Mastermind. In this game, the computer chooses 4 pegs each with one of 6 colors.  The player’s job is then to guess the colors that the computer has chosen in the proper order. After each guess by the player, the computer will then give two numbers as feedback.  The first number is how many pegs are the proper color and in the proper position. The second number is how many pegs are the proper color, but not in the correct position.

What you need to do:

• Generate a random computer guess of four colors out of:
• Red, Orange, Yellow, Green, Blue, Purple
• Read a guess from the user as a string of colors (see example below)
• Score the guess, and report the two values back to the user
• Allow the user to continue to guess until they get it correct, or reach 10 turns and they lose.
• Allow the user to play the game multiple times
• Use at least 3 different methods in the program, and possibly more

Example:

Welcome to Mastermind!

Would you like to play? yes

Enter guess number 1:

rrrr

Colors in the correct place: 1

Colors correct but in wrong position: 0

Enter guess number 2:

…

Hints:

• We will discuss how to generate random choices in class, and I will help you generate the random colors.
• Read the user’s guess as a string, and then loop through it reading each character like so:

String input = Console.in.readLine();

for(int i=0; i<input.length(); i++) {

// get the ith character out of the string.

     char c = input.charAt(i);

// do some checking

}