particles_network 0.0.4

A performant and customizable interactive particle network widget for Flutter. Ideal for background animations, landing pages, and visual effects.

particles_network

A highly optimized Flutter package that creates an interactive particle network effect with smooth animations and touch interactions. The package creates a visually appealing network of particles connected by lines that respond to touch input.

Features

• 🚀 Highly optimized rendering using spatial partitioning
• 🎨 Customizable particle appearance (color, size, count)
• 🔗 Dynamic line connections between nearby particles
• 👆 Interactive touch response with particle attraction
• 🎯 Smooth particle movement with natural physics
• 📱 Responsive to screen size changes
• ⚡ Memory-efficient with distance caching

Image

Getting started

Add this package to your Flutter project by adding the following to your pubspec.yaml:

dependencies:
  particles_network: ^0.0.1

Usage

Here's a simple example of how to use the Particles Network widget:

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

void main() {
  runApp(const MyApp());
}

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: OptimizedParticleNetwork(
          particleCount: 50,          // Number of particles
          maxSpeed: 0.5,             // Maximum particle speed
          maxSize: 3.5,              // Maximum particle size
          lineDistance: 100,         // Maximum distance for connecting lines
          particleColor: Colors.white,
          lineColor: const Color(0xFF4CFFA7),
          touchColor: Colors.amber,
        ),
      ),
    );
  }
}

Customization

The OptimizedParticleNetwork widget accepts several parameters for customization:

• particleCount: Number of particles in the system (default: 50).

  ⚠️ If particleCount exceeds 400, there may be a noticeable drop in performance, especially on low-end devices or when combined with large canvas sizes.

• maxSpeed: Maximum velocity of particles (default: 0.5)

• maxSize: Maximum size of particles (default: 3.5)

• lineDistance: Maximum distance for drawing connecting lines (default: 100)

• particleColor: Color of the particles (default: white)

• lineColor: Color of connecting lines between particles (default: teal)

• touchColor: Color of lines created by touch interaction (default: amber)

Performance Optimization

The package uses several optimization techniques:

1. Spatial Partitioning: Divides the space into a grid to reduce particle distance calculations
2. Distance Caching: Caches distances between particles to avoid recalculations
3. Efficient Repainting: Only repaints when necessary using smart shouldRepaint checks
4. Memory Management: Clears caches each frame to prevent memory growth

Additional Information

• Package is optimized for both mobile and web platforms
• Supports both light and dark themes
• Compatible with Flutter's widget tree and can be used in any container
• Automatically handles screen size changes and orientation changes

License

This project is licensed under the MIT License - see the LICENSE file for details.

Contributing

Contributions are welcome! Feel free to submit issues and pull requests.