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EXP. 004

Draw a Circle

Hold and draw one circle, let go, get a score. Getting 90 is harder than it sounds.

● LIVELAB / 004
Hold and draw one loop around the center
ONE STROKE
Best —

How to play

Hold, draw one loop, let go. A steady radius, ends that actually meet, and no quietly quitting at half a circle all go into the score.

What it's made of

Kasa least squares fits the closest circle, then the radius gets a standard deviation. Canvas 2D, no library.

Limits

Half circles and tiny circles are rejected. The best score resets on reload, and nothing is ranked.

What I was thinking while building it

The hard part isn't adding up a score, it's making the score feel fair. Half-circle cheating, a shaky start, a circle too small to deserve a number — each one gets its own gate.