Applies an action on a particle to define its behaviourApplies an action at an "event" (something happening to a particle, when it meets a condition). This is used to define advanced particle behaviours.
Kill - Destroy a particle
Emit - Emit a number of particles from another particle
Colorize - Set the color of a particle
Change Group - Set or increase the Group ID of a particle
Age - Set or offset the Age of a particle
Bounce - Make a particle collide with an object, defining its restitution and friction with the surface