1 def urbanmain() = {

     2   import M4._

     3 

     4   val b_init = Board(Set(King(2,Wht,(4,1)), King(1,Red,(5,8)),

     5                          Pawn(4,Wht,(1,1)), Pawn(4,Red,(1,8)),

     6                   	 Pawn(3,Wht,(2,1)), Pawn(2,Red,(2,8)),

     7                       	 Pawn(2,Wht,(3,1)), Pawn(3,Red,(3,8)),

     8               		 Pawn(1,Wht,(5,1)), Pawn(1,Red,(4,8)),

     9                		 Pawn(4,Wht,(6,1)), Pawn(3,Red,(6,8)),

    10                		 Pawn(3,Wht,(7,1)), Pawn(1,Red,(7,8)),

    11                		 Pawn(2,Wht,(8,1)), Pawn(3,Red,(8,8))))

    12 

    13   val pw_a = Pawn(4, Wht, (4,4))

    14   assert(eval(pw_a, U,  4, b_init) == Set(Pawn(4,Wht,(4,8))))

    15   assert(eval(pw_a, U,  3, b_init) == Set(Pawn(4,Wht,(4,7))))

    16   assert(eval(pw_a, RU, 4, b_init) == Set(Pawn(4,Wht,(6,6)), Pawn(4,Wht,(4,8)),

    17                                           Pawn(4,Wht,(5,7)), Pawn(4,Wht,(7,5)), 

    18                                           Pawn(4,Wht,(8,4))))

    19   val pw_b = Pawn(4, Red, (4,4))

    20   println(eval(pw_b, RU, 4, b_init) == Set(Pawn(4,Red,(8,4)), Pawn(4,Red,(7,5)), 

    21                                            Pawn(4,Red,(6,6)), Pawn(4,Red,(5,7))))

    22 

    23 

    24 }