week 13. Project 2 demo & Object-Oriented Programming

1.  Mandala Project demo:

2. object oriented programming:
   https://processing.org/tutorials/objects/
   https://www.youtube.com/watch?v=YcbcfkLzgvs

3. simple particle system

https://processing.org/examples/simpleparticlesystem.html

EXercise:
 draw 'array-like' object with OOP

reference:

https://processing.org/examples/arrayobjects.html