use eazing::{ease, Easing};
fn main() {
let mut time = 0.0; let duration = 4.0; let mut p = 0.0;
while time <= duration {
p = ease(Box::new(Easing::InOutBack), time / duration, 0.0, 1.0);
println!("progress = {p}");
time += 1.0; }
println!("progress = {p}");
println!("\nease:end\n");
}