sprung 1.0.0+1 sprung: ^1.0.0+1 copied to clipboard
Spring curves for Flutter based on physics equations
sprung #
Sprung is an easy-to-consume Curve that uses real physics equations to drive your animations.
Easy to consume #
AnimatedContainer(
curve: Sprung(),
/// ...
),
Sprung()
also supports three damping curves, Damped.under
, Damped.critically
, and Damped.over
.
AnimatedContainer(
curve: Sprung(
damped: Damped.under
),
/// ...
),
Note: Sprung is critically damped by default.
Based on Physics #
Using Newton's Second Law of Motion, Hooke's Law, and velocity based damping, we implement the following equation in three finite cases.
Believable Motion #
Reliable #
All curves are subjected to unit tests and gaurantee an epsilon of 5e-3
Prior Art #
https://medium.com/@dtinth/spring-animation-in-css-2039de6e1a03