Particle Attraction Simulation

A Flutter application that simulates the movement and interaction of particles based on mouse position. Particles are attracted to the mouse or to a calculated point if the mouse is not moving. This project demonstrates the use of Flutter's CustomPainter for custom drawing and GestureDetector for handling user interactions.

Getting Started

Prerequisites

• Flutter installed on your machine. If you don't have Flutter installed, follow the instructions on the official Flutter website.

Installation

1. Clone the repository:

   git clone https://github.com/hamed-rezaee/flutter_particle_attraction_simulation.git
   

2. Install the dependencies:

   flutter pub get
   

3. Run the app:

   flutter run
   

Project Structure

• main: Entry point of the application. Sets up the main widget and handles particle logic.
• Particle: A class representing an individual particle.
• ParticleAnimation: A stateful widget that manages the particle system and user interactions.
• ParticlePainter: A custom painter that renders the particles on the canvas.

Customization

You can customize the behavior and appearance of the particles by modifying the following constants in ParticleAnimation:

• rows: Number of rows of particles.
• cols: Number of columns of particles.
• numParticles: Total number of particles (rows * cols).
• thickness: Attraction strength. Increase for stronger attraction.
• spacing: Distance between particles.
• margin: Margin around the particle grid.
• color: Color intensity of the particles.
• drag: Damping factor for particle movement.
• ease: Ease factor for particle movement.

Acknowledgements

This project was inspired by https://codepen.io/soulwire/pen/DdGRYG by Justin Windle.

License

This project is licensed under the MIT License.

Contributing

Contributions are welcome! Please open an issue or submit a pull request for any improvements or bug fixes.