Awesome

Easing

A port of known Robert Penner's easing functions for Ruby, implemented both in pure-Ruby and with FFI.

Check out easings.net to help you easily visualize each of the easing functions.

Usage

All functions are defined in the Easing module, and the same 4 parameters:

• t: current time
• b: beginning or start value
• c: change in value (or destination - b)
• d: duration

(0..10).map { |t| Easing.ease_in_out_expo(t, 0, 10, 10) }
# => [0.0, 0.01953125, 0.078125, 0.3125, 1.2500000000000002, 5.0, 8.75, 9.6875, 9.921875, 9.98046875, 10.0]

Installation

Add this line to your application's Gemfile:

gem 'easing'

And then execute:

$ bundle

Or install it yourself as:

$ gem install easing

Contributing

1. Fork it
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 new Pull Request