Mastermind

Odin Project Ruby game project ran on terminal (command line).

• In this game there are two ways to play it

1. Become a Hacker and crack the code !!! OR
2. BE THE CREATOR create it...

Contents

1. Aim of project
2. Structure of Project
3. Challenges and Solutions
4. Development

Aim of project

Structure of Project

Note

Thisis not the original version of the Mastermind game, here instead of guessing or creating color choices you must either guess an integer-based code of 4 digits or create it and play against the computor to see the original rules for mastermind check here

This game will have two options where:

• YOU create the code
• You must crack the code

---

2 Classes

1. => For computor to crack the code (Computor)
2. => For you to crack the code (Player)

The Classes will inherit from one module (CrackCode)

Challenges and Solutions

Development

1. How to rearrang elemnts in an array in a random way ?

2. How to remove whitspace in an array ?

3. How to generate random elements from an array

4. => you use the .shuffle() Array instance method to return a copy of rearranged elements from the array

numbers = [1, 2, 3, 4, 5]
numbers_shuf = numbers.shuffle # store in var

print numbers_shuf => [1, 4, 2, 5, 3] # random order of elements

2. => To remove elements of whitespace in an array you use the reject() method that removess any element that meets its condition from an array (it does not mutate the caller)

arr = ["hello", " ", "hy"]
arr = arr.reject {|el| el.strip.empty?}

print arr # => ["hello", "hy"] returns array of non-whitespace elements

• The reject method works with boolean values
• If each element has whitespace that is not needed you can use the gsub(" ", "") method with arguments to replace

2. => To get a random element from an array you use the sample method which returns a single random element from the array

numbers = [1, 2, 3, 4, 5]
random_number = numbers.sample

print random_number # => returns random number

• To store more than one you can use a loop with another empty array

numbers = [1, 2, 3, 4, 5]
choices = Array.new

4.times do 
    random_number = numbers.sample
    choices.push(random_number)
end

print choices

• You cannot call private or any other method with class methods