Ball challenge

main.dart

import 'package:flame/components.dart';
import 'package:flame/effects.dart';
import 'package:flame/extensions.dart';
import 'package:flame/game.dart';
import 'package:flutter/material.dart';

void main() {
  const radius = 30.0;
  runApp(
    GameWidget(
      game: FlameGame(
        children: [
          for (var i = 0; i < 10; i++)
            CircleComponent(
              radius: radius,
              position: Vector2(80 + i * radius * 1.4, 150),
              paint: Paint()..color = Colors.green.brighten(i / 20),
              anchor: Anchor.center,
            )
              ..add(
                MoveByEffect(
                  Vector2(0, -60),
                  EffectController(
                    duration: 0.5,
                    curve: Curves.decelerate,
                    startDelay: i * 0.2,
                    alternate: true,
                    infinite: true,
                  ),
                ),
              )
              ..add(
                ScaleEffect.to(
                  Vector2(1.2, 0.8),
                  EffectController(
                    duration: 0.5,
                    curve: Curves.easeInBack,
                    startDelay: i * 0.2,
                    alternate: true,
                    infinite: true,
                  ),
                ),
              ),
        ],
      ),
    ),
  );
}