Black Ops III

Target_IsInCircle

Returns whether a target is within a given radius from the center of the player's screen

Example:

player Target_IsInCircle( enemy_chopper, player, 65, 100 )

Parameter	Summary
*target entity	The entity that is the target
*player	The player entity
*fov	The player's field of view
*radius	radius of the circle, centered at the center of the screen
[zoffset]	if entity is not in target array, use optional zoffset for target pos

_{* = mandatory}