|ind||The index of the particle system.|
With this function you can clear all the particles currently
created by the system from the room. It does not reset or
remove the particle types themselves, just their visual
representation, and if you have any object streaming particles from
an emitter, these particles disappear but will begin to appear
again the next step after calling this code.
if lives = 0
The above code will check the value of the variable "lives" and if it is equal to 0, it clears all particles from the system and then changes room.