8puzzle-java8-example.java

enum Action { UP, DOWN, LEFT, RIGHT }
 
Hipster.SearchProblem p =
  ProblemBuilder.create()
	  .initialState(Arrays.asList(5,4,0,7,2,6,8,1,3))
	  .defineProblemWithExplicitActions()
	  .useActionFunction( (state) -> return validMovementsFor(state) )
          .useTransitionFunction( (action, state) -> applyActionToState(action, state) )
          .useCostFunction( (transition) -> return 1d )
          .build();
 
System.out.println(Hipster.createAStar(p).search(Arrays.asList(0,1,2,3,4,5,6,7,8)));