https://github.com/waterlink/gilded_rose.cr

Gilded Rose Kata in Crystal
https://github.com/waterlink/gilded_rose.cr

Last synced: 30 days ago
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Gilded Rose Kata in Crystal

• Host: GitHub
• URL: https://github.com/waterlink/gilded_rose.cr
• Owner: waterlink
• License: mit
• Created: 2016-02-13T13:54:09.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2016-02-13T23:05:29.000Z (almost 9 years ago)
• Last Synced: 2024-10-16T07:16:26.033Z (3 months ago)
• Language: Crystal
• Size: 48.8 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Gilded Rose Kata (in Crystal Lang)

## Kata

Hi and welcome to team Gilded Rose.

As you know, we are a small inn with a prime location in a prominent city ran

by a friendly innkeeper named Allison. We also buy and sell only the finest

goods. Unfortunately, our goods are constantly degrading in quality as they

approach their sell by date.

We have a system in place that updates our inventory for us. It was developed

by a no-nonsense type named Leeroy, who has moved on to new adventures. Your

task is to add the new feature to our system so that we can begin selling a new

category of items.

First an introduction to our system:

- All items have a `sell_in` value which denotes the number of days we have to

  sell the item

- All items have a `quality` value which denotes how valuable the item is

- At the end of each day our system lowers both values for every item

Pretty simple, right? Well this is where it gets interesting:

- Once the sell by date has passed, `quality` degrades twice as fast

- The `quality` of an item is never negative

- "Aged Brie" actually increases in `quality` the older it gets

- The `quality` of an item is never more than 50

- "Sulfuras", being a legendary item, never has to be sold or decreases in

  `quality`

- "Backstage passes", like aged brie, increases in `quality` as it's `sell_in`

  value approaches; `quality` increases by 2 when there are 10 days or less and

  by 3 when there are 5 days or less but `quality` drops to 0 after the concert

We have recently signed a supplier of conjured items. This requires an update

to our system:

- "Conjured" items degrade in `quality` twice as fast as normal items

Feel free to make any changes to the `update_quality` method and add any new

code as long as everything still works correctly. However, do not alter the

`Item` class or `Item`s property as those belong to the goblin in the corner

who will insta-rage and one-shot you as he doesn't believe in shared code

ownership (you can make the `update_quality` method and `Item`s property static

if you like, we'll cover for you).

Just for clarification, an item can never have its `quality` increase above 50,

however "Sulfuras" is a legendary item and as such its `quality` is 80 and it

never alters.

Source: http://iamnotmyself.com/2011/02/13/refactor-this-the-gilded-rose-kata/

## Contributing

1. Fork it ( https://github.com/waterlink/gilded_rose.cr/fork )

2. Create your feature branch (git checkout -b my-new-feature)

3. Commit your changes (git commit -am 'Add some feature')

4. Push to the branch (git push origin my-new-feature)

5. Create a new Pull Request

## Contributors

- [waterlink](https://github.com/waterlink) Oleksii Fedorov - creator,

  maintainer