Optimization: 120FPS Physics with Web Workers

Breaking the Main Thread Barrier

As our simulations became more complex with Multi-Sim mode, we hit a wall. In standard web development, everything usually runs on a single "main thread." If the physics engine takes too long to calculate a collision, the UI lags. In late March, we fixed this once and for all.

How Web Workers Work

Imagine your computer has multiple brains. Previously, we were only using one. We migrated the entire physics system to a "Web Worker"—a separate process that runs in the background. Now, while your screen renders beautiful 4K visuals, a hidden "math brain" is crunching thousands of collision vectors every millisecond without slowing down the interface.

Optimization Settings Panel

We didn't just hide these improvements; we gave you control over them. The new Optimization Settings section allows you to toggle "Sub-stepping" (calculating physics multiple times per frame for higher accuracy) and adjust the "Ball Pool" size to match your device's power.

Stability Milestone

This update significantly reduced "tunneling"—a common physics bug where fast-moving balls might pass through walls. By calculating collisions in the shadow thread at much higher frequencies, the world of Fun Circle Games is now more solid and reliable than ever.