CREATE EVENT:

FOR BLUE PORTAL:

a=0
c_blue2=make_color_rgb(0,214,208);
c_blue2=make_color_rgb(0,157,153);
color1=c_blue3;
color2=c_blue2;
color3=c_blue;

FOR GREEN PORTAL:

a=0
c_green2=make_color_rgb(29,208,9);
c_green3=make_color_rgb(21,119,11);
color1=c_green3;
color2=c_green2;
color3=c_green;

------------------------
STEP EVENT:

if(!a){
a=1;
Sname=part_system_create();
part_system_depth(Sname,-1);
particle1=part_type_create();
part_type_shape(particle1,pt_shape_sphere);
part_type_size(particle1,0.5,1,0,0);
part_type_scale(particle1,0.50,1);
part_type_color3(particle1,color1,color2,color3);
part_type_alpha2(particle1,random_range(.8,.4),0);
part_type_speed(particle1,1,2,0,0);
part_type_direction(particle1,0,359,.1,0);
part_type_orientation(particle1,0,359,0,0,1);
part_type_blend(particle1,1);
part_type_life(particle1,15,35);
emitter1=part_emitter_create(Sname);
part_emitter_region(Sname,emitter1,x,x,y,y,ps_shape_ellipse,1);
part_emitter_stream(Sname,emitter1,particle1,3);
}

---------------------------------------------------------
ROOM END EVENT:

if(a){
part_system_destroy(Sname);
}