benstone1 / Guessing-Game-cli-lab

Guessing Game Lab

Build a guessing game in the command line!

Similar to the lesson, you will be building a guessing game. The main difference with this lab is the computer will generate a random number and it's up to you to guess it.

Learning Objectives

• Practice building a command line game
• Understanding how to control the flow of a program
• Practice writing code to make tests pass

Prerequisites

• Javascript (and some node)
• Terminal commands

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Getting Started

1. Fork this repository.
2. Clone the forked repository to your computer.
3. cd to the cloned directory
4. npm install to install dependencies
5. npm test to run the tests

Technical Requirements

Here's a description of what each function should accomplish. We also suggest you try to read the tests to see what they're looking for specifically.

Note: you can pass all the tests in this lab and still not have a working game. This is due to the difficulty of testing console inputs inside loops. Make sure your game works by playing it in the terminal before you submit a pull request.

startGame()

• Should run rls.keyInYN() which prompts the user to start the game
  • If Y is pressed, console log "Let's start!"
  • If Y is pressed, call gameLoop() function
  • If N is pressed, console log "Have a nice life!"
  • If N is pressed, call quitGame() function
• Call startGame() at the bottom of game.js (before the exports) to kick things off

quitGame()

• console log "Goodbye!"
• call process.exit() to terminate the program

generateRandomNumber()

• return a whole (rounded) random number between 1 and 1000

gameLoop()

• console log "I have a random number in mind"
• console log "It's between 1 and 1000"
• console log "You have 10 guesses"
• Generate a random number and store it in a variable
• Take an input (guess) from the user using rls.questionInt()
• If the guess is correct, log "Congrats! You got it right!"
  • Prompt the user if they want to play again
    • if Y, call gameLoop()
    • if N, call quitGame()
• If the guess is high, log "Your guess is too high"
• If the guess is low, log "Your guess is too low"
• Starting with 10, decrease the number of guesses after each attempt
• If the number of guesses reaches 0, log "You lose!" and call quitGame()

Bonus

Look up how to use process.argv for these (see Resources below). It will enable you to pass arguments in from the command line to the program.

• Change the numOfGuesses variable in startGame to be a value passed in from the command line. It should default to 10 if nothing is passed in.
• Add min and max parameters to the generateRandomNumber() function, which will allow you to specify how wide the range of random numbers is.
  • Accept min and max values from the command line
  • Should default to 1 and 1000, respectively

You should be able to run the program like this:

$ node game.js 15 100 500 # 15 tries, 100 min, 500 max

Submission Guidelines

• Finish the lab
• Commit your work
• Push your work to your forked repository
• Make a pull request against the main repository

Resources

• how to parse command line arguments