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# roulette-wheel-selection


## Installation

Add this line to your application's Gemfile:

```ruby
gem 'roulette-wheel-selection'
```

And then execute:

    $ bundle

Or install it yourself as:

    $ gem install roulette-wheel-selection

## Usage

### require the library
```rb
require 'roulette-wheel-selection'
```

### Hash format
```rb
RouletteWheelSelection.sample(
  'cola'   => 40, 
  'sprite' => 20, 
  'fanta'  => 30,
  'wine'   => 40,
)
# => 'cola'
```

### Array format
```rb
drinks = [
  { name: 'cola', weight: 40 },
  { name: 'sprite', weight: 20 },
  { name: 'fanta', weight: 30 },
  { name: 'wine', weight: 40 },
]
RouletteWheelSelection.sample(drinks, :weight)
# => 'cola'
```

## Development

After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake test` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).

## Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/khiav223577/roulette-wheel-selection. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct.


## License

The gem is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).