StarPair

net.aerith.misao.util. Pair
#first_position :Position
#second_position :Position
#Pair()
+Pair(Position position1, Position position2)
+getFirstPosition() :Position
+getSecondPosition() :Position
net.aerith.misao.util. StarPair
#out_of_area_flag :boolean
+StarPair(Star star1, Star star2)
+getFirstStar() :Star
+getSecondStar() :Star
+isOutOfArea() :boolean
+setOutOfArea() :void