Live:
I wanted to understand three things game developers need to know: physics simulation, graphics rendering, and performance. So I built a single-file web app that does all three.
No npm. No build tools. No dependencies. Just ~500 lines of JavaScript in one HTML file.
What It Does
Drop objects from different planets — Watch gravity, drag, and terminal velocity in real-time as objects fall from Earth, Mars, Jupiter, and more.
Mix colors mathematically — Blend RGB values and instantly see the closest named color using distance calculations.
Test color accessibility — Check if your text color meets WCAG standards (4.5:1 contrast ratio) so everyone can read it.
Key Takeaway
You don't need frameworks to build cool things. Vanilla JavaScript + Canvas can handle physics, graphics, and complex math.
If you're learning game development, start here. Understand the fundamentals before frameworks.
Building something small and real teaches more than tutorials.
Happy coding! 🚀
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