screen
Checks if a point is within a certain distance of the screen's edges; Used to avoid spawning particles or other effects that won't be seen by the player while impacting performances. The longer lived the effect is, the farther should be the cut-off distance
Return
Parameters
distance
Distance away from the edges of the screen, in screen width. A good default is 0.5f, or half a screen away from the edge. Can be shorter for short lived particles and such.
point
Location to check.