|group||The particle group to get.|
With this function you can retrieve the y position in the room
of a group of particles. The group value is that which was
returned when you created the group of particles using the function
and the function will return a value which is the combined value of
the currently set flags.
xx = physics_particle_group_get_x(group1);
yy = physics_particle_group_get_y(group1);
The above code will get the x and y positions of the particle group indexed in the variable "group1" and store them in variables.