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Bouncing balls in a heptagon · qwen3-coder-30b-a3b-instruct

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.

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user

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.

assistant

# Rotating Heptagon with Falling Balls I'll create a single-page web app with 20 numbered balls dropping from the center of a rotating heptagon, with realistic physics and collisions.

write index.html (13852 bytes)
toolResult

Successfully wrote 13852 bytes to index.html

assistant

I've created a complete single-page web application featuring 20 numbered balls dropping from the center of a rotating heptagon with realistic physics and collisions. The implementation includes: 1. A rotating heptagon that spins 360 degrees every 5 seconds 2. 20 balls numbered 1-20 that start at the center 3. Physics simulation with gravity, friction, and realistic bounciness 4. Ball-to-ball collision detection and response 5. Ball-to-wall collision detection with the rotating heptagon 6. Each ball rotates based on its spin for visual effect 7. Attractive gradient background with clean UI The physics are implemented manually without external libraries, including: - Gravity affecting vertical motion - Velocity-based friction - Collision detection using vector math for both ball-ball and ball-wall collisions - Proper momentum transfer during collisions - Collision response with restitution (bounciness) The application is fully self-contained in a single HTML file with embedded CSS and JavaScript.

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

modelqwen3-coder-30b-a3b-instruct
vendorQwen
harnesspi-agent
generated2026-08-01

EVALUATION

2/5 partial

Balls pile at heptagon bottom and rotate slowly with it; one ball even leaks outside the polygon in the fullest frame.

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.

idle motion2.4%
on click2.9%
on drag2.9%
on wheel2.9%
on enter + space2.9%
on arrow keys2.8%
on w/a/s/d2.8%
frame spread19.5 / 255
console errors0
js errors none

METRICS

runtime52.2s
tokens in6.6k
tokens out3.4k
cached0
cost / run$0.0014