DrawBot: Generate a jellyfish-like pulsating blobby animation.

The article describes a Python script that generates an animated GIF of a jellyfish-like, pulsating blobby shape. The code creates multiple layered blobs that vary in size and phase, using random offsets and Bézier curves to produce an organic, undulating animation. The animation is saved as "Jellyfish.gif" with 95 frames at a duration of 1/20 second per frame.

Jellyfish.py This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters Show hidden characters Generate a jellyfish-like pulsating blobby animation. from random import seed def varyPoint pt, radius, phase : x, y = pt dx = radius cos phase dy = radius sin phase return x + dx, y + dy def drawBlob blobPhase, blobRadius : points = list of off curve points forming the blob. for i in range numBlobPoints : a = 2 pi i / numBlobPoints x = blobRadius cos a y = blobRadius sin a rPhase, rSign = randomPhases i points.append varyPoint x, y , 0.2 blobRadius, rPhase + rSign 2 pi blobPhase Add a final 'fake' point, to tell the pen there is no on curve point at all points.append None bezPath = BezierPath bezPath.qCurveTo points bezPath.closePath drawPath bezPath seed 0 Ok ok, make this animation predictable. numBlobPoints = 5 randomPhases = 2 pi random , choice -1, 1 for i in range numBlobPoints canvasSize = 500 nBlobs = 24 nFrames = 95 for frame in range nFrames : framePhase = frame / nFrames newPage canvasSize, canvasSize frameDuration 1/20 fill 0 rect 0, 0, canvasSize, canvasSize translate canvasSize/2, canvasSize/2 strokeWidth 2 stroke 1 fill None for i in range nBlobs : blobPhase = i / nBlobs radius = 5 + i 10 drawBlob framePhase + blobPhase 0.75, radius saveImage "Jellyfish.gif"