Cannot find a class or type named “ParticleSystem”

Processing Beginners
2

hallo, possibly you need some files in your project

i recommend to start from a existing example:

-a- go
PDE / Tools / add Tool / Examples /
and load
The Nature of Code 3
Daniel Shiffman
All examples from The Nature of Code book.

-b- with bad luck you might need to restart processing
now find:
PDE / File / Examples / Contributed examples / The Nature of Code / cp04_systems /
select like

  • Exercise_4_03_MovingParticleSystem
    and run it.
    there you see also the .pde you miss so much
2 Likes