Gravity Sim

A C++ gravity simulator.

Details

• Click on the screen to add a new object.
• `To toggle debug info.
• RTo reset the simulation.
• Scroll to change the gravity strength.
• ↑/↓ To change the object spawn size.
• ←/→ To change the variance in spawn size.
• W/D To change the maximum speed an object will spawn with.
• Objects merge when they overlap.
• Internally stores objects with SOA rather AOS for better cache performance.
• Built with SFML.
• Uses the brute force algorithm (O(N^2)) to calculate everything, so might not be the most efficient. I do plan on eventually using SIMD instructions to make this faster which is another reason why a SOA data structure is being used for the objects.

Cloning/Running

Clone

git clone "https://github.com/Alex-Petrucci/GravitySim"

Build

This project uses CMake so build use the compiler/build system of your choice.

Before building, you might want to configure some things in Config.hpp. The defaults are just what I think looks good on my PC. The one most people will probably want to change is the FPS_CAP which has been set to 144hz as that is what my monitor can display.

Run

Just run the executable produced by the build.