motor, more complex builder material

snippet.dart

import 'package:motor/motor.dart';

MotionBuilder(
  motion: MaterialSpringMotion.expressiveSpatialDefault,
  value: const Offset(100, 100),
  from: Offset.zero,
  converter: OffsetMotionConverter(),
  builder: (context, value, child) {
    return Transform.translate(
      offset: value,
      child: child,
    );
  },
  child: Container(
    width: 100,
    height: 100,
    color: Colors.green,
  ),
)