Gain insights into Ruby programming by building a hangman game. Learn about fundamentals, practical applications, and develop strong programming skills. No prior coding experience needed.

ruby.tar.gz

ruby

TestRuby

testGallows

 test_dictionary

Programming is a way to teach a computer how to do something the way the programmer thinks it should be done. Put another way, programming is the description of how to perform some processing. 

In this course, you'll get hands-on experience in programming using Ruby by building a hangman game along the way. In the game, a player chooses a (hidden) word while a second player tries to guess the word. You'll learn to build the hangman game incrementally, and by the end of the course, you'll have a fully functional hangman game while learning the fundamentals of programming. This is a beginner-level course and doesn’t require any prior experience in programming.

The course will provide a strong foundation for the advancement of your programming skills and also pave the way for a career in programming.

Learning to Program in Ruby: By Example

Towards the end of the last lesson, we identified the following unwanted behaviors:
* Giving an uppercase letter doesn't work.
* Giving two letters instead of one results in a two-letter comparison.
# Handle the uppercase letter 
Let’s understand the scenario first and try to fix it.
  

hidden_word = "hello"

puts "_ _ _ _ _"
puts

print "Give me a letter: "

answer = gets
answer = answer.chomp.downcase

if hidden_word.include?(answer.chomp)
    puts "The letter is part of the hidden word"
else
    puts "Invalid letter"
end

We add one more process at **line 9**, right after giving a name (`answer`) to the letter that the user proposed.

We send the `chomp` message to remove the carriage return character and send the `downcase` message to the produced result. As we said before, every action produces a result to which we can send another message. Here, `chomp` produces a new string to which we send the `downcase` message. The string understands the message and responds by changing all the characters to lowercase letters, producing a new equivalent string with all lowercase letters.

We give the same name `answer`, to the received string (we cannot recall the old string anymore).

Now, at **line 11**, we compare the lowercase letters with the lowercase letters of the hidden word. 


Learn to improve the behavior of the program by incorporating additional checks.

Before We Begin

Getting Started

Handling Multiple Letters

Improving the Implementation

Declaring Results and Improving Presentation

Generalizing Our Implementation

Wrap Up

Improve the Proposal Check

Handle the uppercase letter