Instantly emits all the particles possible to be emitted. Any particles which
are currently inactive
Set the number of particles to spawn per second.
Returns the number of visible particles (spawned but not dead).
Set the end color of the particles spawned.The particle color at any time is
determined by blending
Set the end size of the particles spawned.The particle size at any time is
determined by blending th
This method sets the gravity vector.
Set the high value of life.The particle's lifetime/expiration is determined by
randomly selecting a