Updates the Particle System. This involves executing the Particle System Events, updating all Active Particles according to the Particle Events, and adding new Particles according to the Emitter settings.
NOTE: This will only Update the Particle System if it does not inherit from DrawableGameComponent, since if it does it will be updated automatically by the Game object.
Assembly: DPSF (in DPSF.dll) Version: 184.108.40.206
How much time in seconds has elapsed since the last time this function was called