Few more particle features and some generalization work
Add particle "frame" enum, to allow effects relative to local, world,
or velocity. Remove the "orient along velocity" and replace with a much
more general orientation affector (angle curve + frame). Add an angular
velocity affector to mirror the behavior of the linear velocity affector.
Reviewed-by: Brian Osman <email@example.com>
Commit-Queue: Brian Osman <firstname.lastname@example.org>
7 files changed