미니게임 (별 잡기)

import 'dart:async';
import 'package:flutter/material.dart';

class StarCatcherGame extends StatefulWidget {
  const StarCatcherGame({super.key});

  @override
  State<StarCatcherGame> createState() => _StarCatcherGameState();
}

class _StarCatcherGameState extends State<StarCatcherGame> {
  int score = 0;
  int seconds = 15;
  double starX = 120;
  double starY = 90;
  Timer? timer;

  void startGame() {
    timer?.cancel();
    setState(() {
      score = 0;
      seconds = 15;
      starX = 120;
      starY = 90;
    });

    timer = Timer.periodic(const Duration(seconds: 1), (timer) {
      if (seconds == 0) {
        timer.cancel();
        return;
      }
      setState(() => seconds -= 1);
    });
  }

  void catchStar() {
    if (seconds == 0) return;
    setState(() {
      score += 1;
      starX = (score * 47 % 220).toDouble();
      starY = (score * 73 % 150).toDouble();
    });
  }

  @override
  void dispose() {
    timer?.cancel();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Text('점수: $score  시간: $seconds'),
        const SizedBox(height: 12),
        SizedBox(
          width: 320,
          height: 220,
          child: Stack(
            children: [
              Positioned(
                left: starX,
                top: starY,
                child: ElevatedButton(
                  onPressed: catchStar,
                  child: const Text('★'),
                ),
              ),
            ],
          ),
        ),
        ElevatedButton(
          onPressed: startGame,
          child: const Text('게임 시작'),
        ),
      ],
    );
  }
}

Container(
  padding: const EdgeInsets.all(20),
  decoration: BoxDecoration(
    color: Colors.white,
    border: Border.all(color: const Color(0xFFDCE6EF)),
    borderRadius: BorderRadius.circular(8),
  ),
  child: Column(
    crossAxisAlignment: CrossAxisAlignment.start,
    children: [
      const Text(
        '별 잡기 게임',
        style: TextStyle(fontSize: 22, fontWeight: FontWeight.w900),
      ),
      const SizedBox(height: 14),
      Wrap(
        spacing: 8,
        children: const [Chip(label: Text('점수 0')), Chip(label: Text('시간 15초'))],
      ),
      const SizedBox(height: 14),
      SizedBox(
        width: 320,
        height: 220,
        child: Stack(
          children: [
            Positioned(
              left: starX,
              top: starY,
              child: FilledButton(
                onPressed: catchStar,
                child: const Text('★'),
              ),
            ),
          ],
        ),
      ),
    ],
  ),
)