[Tutorial|BP] Make a particle system follow the player (and oscillate it randomly if idle)

[Zarkopafilis]

A guy asked about this on slack so here we go.

Video 1: https://www.youtube.com/watch?v=z3y04rQ3Olk
Video 2: https://www.youtube.com/watch?v=DVka0C7aLWE

4 approaches and some trigonometry things.