feat: Initial setup for Gravity Lab transformation (#1)

[udiedrichsen]

🎯 Overview

This PR initiates the transformation of Moinsen Physics into Gravity Lab, addressing the urgent need to prevent Google Play Store removal and modernize the game.

Closes issues

Closes #1

🔄 Changes Made

Project Structure

• Created new folder structure following clean architecture principles
• Added domain, data, and presentation layers
• Set up feature-based module organization

Dependencies Update ✅ COMPLETED

# Updated pubspec.yaml with modern dependencies
- Flutter SDK upgraded to 3.3.2
- Added Flame game engine 1.29.0
- Updated all core dependencies to latest versions
- Added AI/ML support with tflite_flutter for future features

Core Files Added

1. Project Configuration

• analysis_options.yaml - Strict linting rules
• .gitignore - Updated for Flutter 3.3.2
• README.md - New project documentation

2. Architecture Foundation

lib/
├── core/
│   ├── constants/
│   ├── errors/
│   ├── themes/
│   └── utils/
├── features/
│   ├── game/
│   │   ├── domain/
│   │   ├── data/
│   │   └── presentation/
│   ├── progression/
│   └── ai_features/
└── main.dart

3. Initial Implementation Files

lib/main.dart

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:gravity_lab/core/themes/app_theme.dart';
import 'package:gravity_lab/features/game/presentation/screens/splash_screen.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  
  runApp(
    const ProviderScope(
      child: GravityLabApp(),
    ),
  );
}

class GravityLabApp extends StatelessWidget {
  const GravityLabApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Gravity Lab: Physics Puzzles',
      theme: AppTheme.lightTheme,
      darkTheme: AppTheme.darkTheme,
      home: const SplashScreen(),
      debugShowCheckedModeBanner: false,
    );
  }
}

lib/core/themes/app_theme.dart

import 'package:flutter/material.dart';

class AppTheme {
  static ThemeData lightTheme = ThemeData(
    useMaterial3: true,
    colorScheme: ColorScheme.fromSeed(
      seedColor: Colors.blue,
      brightness: Brightness.light,
    ),
  );

  static ThemeData darkTheme = ThemeData(
    useMaterial3: true,
    colorScheme: ColorScheme.fromSeed(
      seedColor: Colors.blue,
      brightness: Brightness.dark,
    ),
  );
}

lib/features/game/domain/entities/physics_element.dart

enum PhysicsElementType {
  gravity,
  portal,
  magnet,
  spring,
  blackHole,
  windZone,
  ice,
  water,
  timeZone,
  quantum,
}

class PhysicsElement {
  final String id;
  final PhysicsElementType type;
  final Map<String, dynamic> properties;
  
  const PhysicsElement({
    required this.id,
    required this.type,
    required this.properties,
  });
}

Build Configuration

• Updated Android minimum SDK to 21
• Configured iOS deployment target to 12.0
• Configured app bundle for Google Play

CI/CD Setup

• Added GitHub Actions workflow for Flutter
• Automated testing on PR
• Build validation for Android and iOS

📋 Checklist

• Project structure created
• Dependencies updated ✅
• Basic architecture implemented
• Theme system initialized
• Build configuration updated
• CI/CD pipeline configured
• Testing framework setup (next PR)
• Game engine integration (next PR)

🧪 Testing

• Run flutter pub get to install dependencies
• Run flutter analyze to check for issues
• Run flutter test to run unit tests
• Build with flutter build apk to verify Android build

📸 Screenshots

[To be added once UI is implemented]

🚀 Next Steps

After this PR is merged:

1. Implement game engine integration
2. Create basic physics system
3. Design and implement first 10 levels
4. Add progression system
5. Add analytics for user experience improvement

📝 Notes

• This is the foundation PR focusing on setup and structure
• Game logic implementation will follow in subsequent PRs
• All changes maintain backward compatibility where possible
• This will remain a free game without monetization