lerp method Null safety

  1. @protected
T lerp (
  1. double t

Returns the value this variable has at the given animation clock value.

The default implementation of this method uses the +, -, and * operators on T. The begin and end properties must therefore be non-null by the time this method is called.

In general, however, it is possible for this to return null, especially when t=0.0 and begin is null, or t=1.0 and end is null.


T lerp(double t) {
  assert(begin != null);
  assert(end != null);
  return begin + (end - begin) * t as T;