Here's a complete, self-contained HTML file that renders a ball bouncing inside a spinning hexagon, with realistic gravity, friction, and collision response. It includes Pause/Resume and Reset buttons, all built with Canvas 2D and inline JavaScript/CSS.
```html
Ball in a Spinning Hexagon
```
### How the Bouncing Simulation Works
Here's a quick look at the physics, controls, and visual feedback that make the bouncing feel natural.
- **Rotating walls:** The hexagon spins at a constant rate. When the ball hits a wall, the collision uses the wall's velocity at the contact point, so the spin actually pushes the ball.
- **Gravity and friction:** Gravity pulls the ball down, while air drag and wall friction gradually slow it. The normal bounce is damped by a restitution factor.
- **Controls:** Use the Pause/Resume button (or Space) to freeze the simulation. Reset (or R) puts the ball back to its starting position and zeroes the hexagon's rotation.
- **Visual feedback:** A glowing hexagon, motion trail, and live speed readout help you follow the ball's movement. A "PAUSED" overlay appears when the simulation is frozen.
---
**Optimization Tip:** You can adjust the simulation's feel by changing the constants at the top of the script (e.g., GRAVITY, RESTITUTION, OMEGA). For example, increasing OMEGA makes the hexagon spin faster, while a higher RESTITUTION makes bounces more energetic.