SFML Gravity Simulation

A high-performance 2D particle simulation engine built with C++ and SFML. This project demonstrates efficient rendering of massive particle systems using sf::VertexBuffer and simulates gravitational physics in real-time.

🌟 Features

• High-Performance Rendering: Utilizes sf::VertexBuffer for efficient GPU rendering, capable of handling a large number of particles smoothly.
• Interactive Physics: Real-time gravitational interaction controlled by user input.
• Visual Effects: Additive blending (sf::BlendAdd) creates beautiful, glowing visual effects as particles overlap.
• Dynamic Coloring: Particle colors evolve over time based on simulation duration.

🛠 Architecture

The simulation loop processes user input, updates particle physics on the CPU, and renders the result using OpenGL-based Vertex Arrays via SFML.

graph TD
    A[Start] --> B[Initialize Window & Resources]
    B --> C{Game Loop}
    C --> D[Handle Input]
    D -- Left Click --> E[Emit Particles]
    D -- Right Click --> F[Apply Gravity]
    D -- Space --> G[Clear Particles]
    F --> H[Update Physics]
    E --> H
    H --> I[Update Vertex Buffer]
    I --> J[Render Frame]
    J --> C

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🚀 Getting Started

Prerequisites

• Visual Studio (Project solution is provided as .sln)
• SFML 2.5+ (Libraries are included in the repository, but ensuring a valid environment is recommended)

Installation & Build

1. Clone the repository:

   git clone https://github.com/yourusername/SFML-Gravity-simulation.git

2. Open SFML.sln in Visual Studio.
3. Ensure the build configuration is set to Release or Debug (x64/x86 depending on your SFML DLLs).
4. Build and Run the project.

Note: The required SFML DLLs (sfml-graphics-2.dll, openal32.dll, etc.) are located in the project directory. Ensure the working directory is set correctly in Visual Studio if you encounter "DLL not found" errors.

🎮 Controls

Input	Action
Left Mouse Button	Emit Particles: Spawns 1000 particles at the mouse cursor.
Right Mouse Button	Attract: Activates a strong gravitational pull towards the cursor.
Space Bar	Reset: Clears all particles from the screen.
ESC	Exit: Closes the application.

📸 Demo

(Click the image below to watch the video)

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📝 License

This project is open-source and available under the MIT License.