README.md
<h1>brain-games</h1>
[](https://codeclimate.com/github/TyrionFront/Brain-games/maintainability)
[](https://travis-ci.org/TyrionFront/Brain-games)
(First start in package making & publishing)
**Project is made during studying the web-dev on [Hexlet](https://ru.hexlet.io/?ref=50614).**
It includes **6 simple math games** to be launched as console applications.
To see all possible games to play You should just type _**brain-games**_ in your command-line. You'll see an invitation, name-input line and a games list with their ordinal numbers:
```Welcome to the Brain Games!```
```
What's Ur name, dear guest ?: zorro
Hello, zorro !
[1] makeBalance
[2] simpleCalculator
[3] isEven
[4] GCDgame
[5] primeNumber
[6] progression
[0] CANCEL
Choose a game number from the list above [1...6 / 0]:
```
All of them have next **common logic**:
**1)** after launching a game a description of this game appears(example):
`Is this number prime?`
**2)** then the game will ask You to input your name:
`What's Ur name, dear guest ?: me
Hello, me !`
**3)** after that You have first task displayed with a random number(s) (example):
`Question: 15`
If your answer is correct
`Your answer: no`,
You get the approval message
`Correct!`
and go to the next level ( 3 in total ).
If it's not, You have folloving message:
`'yes' is wrong answer ;(. Correct answer was no.
Let's try again, me!`
**4)** notice that your answer must be "yes"/"no" or a sertain number - it depends from the description of a game. Also if
you input any other string it will be interpreted as "no".
<h2>Games start & description with output samples</h2>
Each game launches by its name and have its own "question":
* **primeNumber**
You need to define whether the displayed number is [prime](https://en.wikipedia.org/wiki/Prime_number) or not:
```
Question: 15
Your answer: no
Correct!
Question: 79
Your answer: yes
```
* **progression**
In this game You need to calculate missed [arithmetic progression](https://en.wikipedia.org/wiki/Arithmetic_progression) value:
```
Question: 7,79,..,223,295,367,439,511,583,655
Your answer: 151
Correct!
Question: 65,160,..,350,445,540,635,730,825,920
Your answer:
```
* **makeBalance**
You have a number which you need to "balance": balanced number is a number where numerals differ from each other by 1 or
are equal: 4455, 2233, 56, 777 etc. So if You got, for example, **4181** your answer should be **3344** and so on:
```
Question: 1103
Your answer: 1112
Correct!
Question: 9024
```
* **GCDgame**
In this game You will get two numbers and You'll have to calculate their [GCD](https://en.wikipedia.org/wiki/Greatest_common_divisor):
```
Question: 8 24
Your answer: 8
Correct!
Question: 8 55
Your answer:
```
* **simpleCalculator**
Adding, subtraction or multiplication of two values:
```
Question: 71 + 56
Your answer: 127
Correct!
Question: 22 - 70
Your answer:
```
* **isEven**
Here You need to answer whether a given number is even or not:
```
Question: 68
Your answer: yes
Correct!
Question: 26
Your answer:
```
<h2>Prerequisites</h2>
To be able to install & run **brain-games** the [npm](https://www.npmjs.com/get-npm) must be installed on your computer.
<h2>Installation</h2>
```$ npm install -g numonebg```