bandicam.2026-03-10.22-03-11-389.mp4

FusionBox: Stellar Evolution 🌌

A physics-based "Suika-style" evolution game built with C++, SFML 3.0, and the Box2D 3.0 C API. Lead a cosmic journey from a tiny Meteor to a massive Red Giant by merging celestial bodies in a gravity-defying container.

🚀 Technical Highlights

• Box2D 3.0 Integration: Leverages the latest C-based version of Box2D for rigid-body dynamics, utilizing custom density, friction, and restitution values for realistic orbital "bounce" and rolling.
• Stellar Progression Logic: Features an 8-stage evolution chain with dynamic scaling:
  • Meteor → Moon → Mercury → Mars → Earth → Jupiter → Blue Star → Red Giant
• Resolution Independence: Implements sf::View and coordinate mapping (mapPixelToCoords) to ensure consistent gameplay and physics across different window sizes.
• Advanced Graphics: * Real-time sprite-to-physics synchronization.
  • Parallax scrolling background stars.
  • Additive blending (sf::BlendAdd) for star-tier objects to simulate high-energy glowing effects.
  • Dynamic screen shake upon high-level fusion events.

🛠️ Built With

• Language: C++20
• Physics: Box2D 3.0
• Graphics/Windowing: SFML 3.0
• Build System: CMake

🎮 How to Play

1. Aim: Move your mouse left and right to position the next celestial body.
2. Drop: Click to release the object into the container.
3. Merge: Touch two objects of the same level to evolve them into the next stage of the stellar lifecycle.
4. Survival: Do not let the planets stack above the Red Danger Line. If they settle at the top, the system collapses!

🔧 Installation & Build

Prerequisites

• C++ Compiler (GCC/MinGW, Clang, or MSVC)
• CMake 3.15+
• SFML 3.0 and Box2D 3.0 installed via your package manager (e.g., vcpkg or MSYS2)

Building from Source

git clone [https://github.com/Akash-Karma/FusionBox.git](https://github.com/Akash-Karma/FusionBox.git)
cd FusionBox
mkdir build && cd build
cmake ..
cmake --build .