Happy Birthday

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() {
  TextPaint textRenderer() => TextPaint(
    style: TextStyle(
      color: ColorExtension.random(),
      fontSize: 40.0,
      shadows: [
        Shadow(color: ColorExtension.random(), offset: const Offset(2, 2), blurRadius: 2),
        const Shadow(color: Colors.yellow, offset: Offset(4, 4), blurRadius: 4),
      ],
    ),
  );

  runApp(
    GameWidget(
      game: FlameGame(
        children: [
          for (var i = 0; i < 5; i++)
            TextComponent(
              text: 'Happy Birthday!',
              position: Vector2(250 + i * 150, 250),
              textRenderer: textRenderer(),
              anchor: Anchor.center,
            )
              ..add(
                MoveByEffect(
                  Vector2(0, -60),
                  EffectController(
                    duration: 0.5,
                    curve: Curves.decelerate,
                    startDelay: i * 0.2,
                    alternate: true,
                    infinite: true,
                  ),
                ),
              )
              ..add(
                RotateEffect.by(
                  0.5,
                  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,
                  ),
                ),
              ),
        ],
      ),
    ),
  );
}