N@Turret control
I@Bearing Min Max Distance Elevation
O@Fire
Fire1 = Min < Bearing
Fire2 = Bearing < Max
Fire3 = Distance != 0
Fire4 = Fire1 * Fire2
Fire5 = Fire3 * Fire4
Fire6 = Min < Elevation
Fire7 = Elevation < Max
Fire8 = Fire6 * Fire7
Fire = Fire8 * Fire5
