Example code sim soft body. Minor bug

[DrZoidbergMD]

p5.js version

1.19.?

What is your operating system?

iOS

Web browser and version

Chrome

Actual Behavior

Error message on line 79?
Missing number …Scope?
due to bug in line 40?
File sketch.js
line 40 nodeX[] not nodeY[] should be initialised

Expected Behavior

No bug

Steps to reproduce

Steps:

Snippet:

// Paste your code here :)

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