public void indicate_current_state_is_goal_state()
{
var buildingState = new BuildingState(new List <char>()
{
'H', 'L'
});
buildingState.SetChipLocation('H', 3);
buildingState.SetGeneratorLocation('H', 3);
buildingState.SetChipLocation('L', 3);
buildingState.SetGeneratorLocation('L', 3);
buildingState.ElevatorLocation = 3;
var goalState = BuildingState.CreateGoalState(buildingState);
var stateTraverser = new StateTraverser();
var stepsToGoalState = stateTraverser.GetStepsToGoalState(buildingState, goalState);
Assert.AreEqual(0, stepsToGoalState);
}
public void indicate_no_possible_path_from_current_state()
{
var buildingState = new BuildingState(new List <char>()
{
'H', 'L', 'S'
});
buildingState.SetChipLocation('H', 0);
buildingState.SetGeneratorLocation('H', 0);
buildingState.SetChipLocation('L', 1);
buildingState.SetGeneratorLocation('L', 3);
buildingState.SetChipLocation('S', 2);
buildingState.SetGeneratorLocation('S', 2);
buildingState.ElevatorLocation = 1;
var goalState = BuildingState.CreateGoalState(buildingState);
var stateTraverser = new StateTraverser();
var stepsToGoalState = stateTraverser.GetStepsToGoalState(buildingState, goalState);
Assert.AreEqual(-1, stepsToGoalState);
}
public static BuildingState CreateGoalState(BuildingState currentState)
{
var goalState = new BuildingState(currentState.ElementNames)
{
ElevatorLocation = TopFloor
};
foreach (var element in currentState.ElementNames)
{
goalState.SetChipLocation(element, TopFloor);
goalState.SetGeneratorLocation(element, TopFloor);
}
return(goalState);
}