effect_create_below

This function creates a simple effect beneath all instances of your room (it is actually created at a depth of 50).

If the effect is anything other than ef_rain or ef_snow then you can define an x/y position to create the effect, and the size can be a value of 0, 1, or 2, where 0 is small, 1 is medium and 2 is large.

These effects can have their drawing toggled on and off, as well as drawing paused, by using the functions part_system_automatic_draw and part_system_automatic_update with the appropriate value for the particle system index (where 0 is for effects below and 1 is for effects above).

The available constants for the different particle kinds are:

Constant	Example	Description
ef_cloud		An effect that creates random cloud particles of varying sizes
ef_ellipse		An effect that creates expanding ellipses
ef_explosion		An effect that creates expanding fading explosions
ef_firework		An effect that creates multiple small particles to generate a firework explosion
ef_flare		An effect that generates a brilliant point that flares up and fades out
ef_rain		An effect that generates rain particles coming down from the top of the screen
ef_ring		An effect that generates expanding and fading circles
ef_smoke		An effect that generates little puffs of smoke
ef_smokeup		An effect that creates a smoke plume that rises up the screen
ef_snow		An effect that generates multiple snow particles falling down the screen
ef_spark		An effect that generates a small spark
ef_star		An effect that generates star particles

Syntax:

effect_create_below(kind, x, y, size, colour);

Returns:

N/A

Example:

if speed > 0
{
    effect_create_below(ef_smoke, x, y, 0, c_gray);
}

The above code will create a small puff of gray smoke every step that the instance speed is greater than 0 at the instance x,y coordinates.