Bouncing balls in a heptagon · nemotron-3-ultra-550b-a55b
Show 20 numbered balls (1 to 20) dropping from the center of a heptagon that spins 360 degrees every 5 seconds. The balls are affected by gravity and friction, collide with each other, and bounce realistically off the rotating walls; show each ball's spin via the rotation of its number. Implement all collision detection yourself.
transcript · 6 messages
Show 20 numbered balls (1 to 20) dropping from the center of a heptagon that spins 360 degrees every 5 seconds. The balls are affected by gravity and friction, collide with each other, and bounce realistically off the rotating walls; show each ball's spin via the rotation of its number. Implement all collision detection yourself.
thinking
The user wants a single-page web app with: 1. A heptagon (7-sided polygon) that spins 360 degrees every 5 seconds 2. 20 numbered balls (1-20) dropping from the center 3. Gravity and friction affecting balls 4. Ball-to-ball collisions 5. Realistic bouncing off rotating walls 6. Each ball shows its spin via rotation of its number 7. All collision detection implemented manually (no physics library) 8. Everything in one index.html file with inline CSS and JS Let me create this physics simulation. I'll need to: - Create a canvas-based animation - Implement a heptagon that rotates - Implement ball physics with gravity, friction, collision detection - Handle rotating wall collisions (need to account for wall velocity) - Handle ball-to-ball collisions - Render balls with rotating numbers This is a complex physics simulation. Let me write it all in one file.
/workspace/index.html (15144 bytes)Successfully wrote 15144 bytes to /workspace/index.html
thinking
I've created the index.html file. Let me verify it works by checking if there are any issues. The file is written. Let me also test it by opening it in a browser or at least verify the syntax is correct.
{"command":"cd /workspace && node -e \"\nconst fs = require('fs');\nconst html = fs.readFileSync('index.html', 'utf8');\nconsole.log('File sFile size: 15144 bytes Has canvas: true Has script: true Has style: true Ball class: true Heptagon class: true Collision functions: true
thinking
The file looks good. All the required components are there. Let me verify the file is in the right place and complete.
Done! Created `/workspace/index.html` with a complete physics simulation featuring: - **Spinning heptagon** (7 sides) rotating 360° every 5 seconds - **20 numbered balls** (1-20) dropping from center with random initial velocity - **Gravity** (400 px/s²) and **friction** (0.995 linear, 0.99 angular) - **Ball-wall collisions** with rotating wall velocity transfer, restitution (0.85), and wall friction - **Ball-ball collisions** with momentum conservation, restitution (0.9), and spin transfer - **Visual spin** on each ball via rotating number text - **Sub-stepping** (4 steps/frame) for stable collision resolution - All collision detection implemented manually (no physics libraries) Open `index.html` in a browser to run it.
TAKE IT TO CODE
A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.
RUN
EVALUATION
Balls numbered 1-20 drop and bounce inside a rotating heptagon with physics; no distinct interactivity since not required.
Vision grade · anthropic/claude-sonnet-5
MEASUREMENTS
Raw readings from the capture, not a verdict — the grade above is the only judgement. Percentages are how much of the screen changed; the measure under-reports sparse motion on a dark background.