EaseElasticIn method

double EaseElasticIn(
  1. num t,
  2. num b,
  3. num c,
  4. num d,
)

Implementation

double EaseElasticIn(num t, num b, num c, num d)
{
  if (t == 0.0) return b.toDouble();
  if ((t/=d) == 1.0) return (b + c).toDouble();

  final p = d*0.3;
  final a = c;
  final s = p/4.0;
  final postFix = a*math.pow(2.0, 10.0*(t-=1.0));

  return (-(postFix*math.sin((t*d-s)*(2.0*rl.PI)/p )) + b);
}