Feedback

Again, I'm not actually suggesting that you merge this in and remove all your code. This just makes it easier to leave feedback :smile: 

Please submit a help request for any questions that you have about my comments.

### Don't merge this pull request
You could also refactor this a little bit to make it more readable by taking advantage of [Comparable#between](http://www.ruby-doc.org/core-2.1.2/Comparable.html#method-i-between-3F).

```ruby
x.between?(right, left) && y.between?(top, bottom)
```