easings_gleam

Easing functions for animation in pure Gleam.

gleam add easings_gleam

import ease

pub fn main() {
  // Compute the easing for bounce-in halfway-through the transition
  0.5 |> ease.bounce()
  // -> 0.234375
}

Bounce-In:

    1 _ ________________________________________________⣀⣀⡀
      _                                            ⢀⠤⠒⠊⠉
 0.75 _                                          ⡠⠊⠁
      _                                        ⡠⠊
  0.5 _                                      ⡠⠊
      _                                    ⢀⠔
 0.25 _                     ⢀⣀⣀⣀⣀⡀        ⠠⠂
      _                 ⣀⠤⠒⠉⠁    ⠈⠉⠒⠤⣀   ⡐⠁
    0 _ ⣀⣀⣀⣀⣀⡠⠤⠒⠒⠒⠒⠢⠤⢄⠤⠊______________⠑⢄⠔__________________

        |''''|''''|''''|''''|''''|''''|''''|''''|''''|''''|
        0   0.1  0.2  0.3  0.4  0.5  0.6  0.7  0.8  0.9   1

Elastic-Out:

              ⢀⡀
             ⡐⠁⠈⠢
            ⠠    ⠑⡀
    1 _ ____⠂_____⠐⠄______⢀⡠⠤⠤⠤⠤⠤⢄⣀⣀⣀_⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⡀
      _    ⠐       ⠈⠢⣀⣀⣀⠤⠊⠁          ⠉
 0.75 _    ⠄
      _   ⠠
  0.5 _   ⡀
      _
 0.25 _  ⠈
      _  ⠁
    0 _ ⡈__________________________________________________

        |''''|''''|''''|''''|''''|''''|''''|''''|''''|''''|
        0   0.1  0.2  0.3  0.4  0.5  0.6  0.7  0.8  0.9   1

Quartic-In-Out:

    1 _ _______________________________________⢀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⡀
      _                                 ⣀⠤⠔⠒⠊⠉⠉⠁           
 0.75 _                              ⡠⠔⠉                   
      _                           ⢀⠔⠊                      
  0.5 _                          ⡠⠂                        
      _                        ⢀⠊                          
 0.25 _                      ⡠⠒⠁                           
      _                  ⢀⡠⠔⠉                              
    0 _ ⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⠤⠤⠤⠒⠒⠉⠁_________________________________
                                                           
        |''''|''''|''''|''''|''''|''''|''''|''''|''''|''''|
        0   0.1  0.2  0.3  0.4  0.5  0.6  0.7  0.8  0.9   1

Further documentation can be found at https://hexdocs.pm/easings_gleam.

Development

gleam test  # Run the tests
gleam run -m birdie # Update test snapshots