A port of a D3.js example called Collision Detection from raw D3.js to two React components. It's built on top of @kriasoft's React Static Boilerplate.
If you're checking it out to look at the code, look at components/Collider/Collider.js: that's where the D3.js React components are found.
I'm new to React, there's definitely 100 better ways to do this. But it was a good learning experience! It's slower than the example, but since the main Collider class is built in React, and each circle, there's some awesome integration potential. I also noticed after building it that there is a canvas version of the D3 example that I remember trying once, and found it to be faster; in my experience, canvas is faster than SVG.
npm install
node run