Refactor particle age logic

Move to a model that only needs floats, and puts the age in the
SkParticleState struct. Add a better test case for spawn affector
animation, to verify that things are still working.

Bug: skia:
Change-Id: I97d99de5f5d4cb302b76116e67ecc93368fb1677
Commit-Queue: Brian Osman <>
Reviewed-by: Brian Osman <>
1 file changed