public SearchProblem(IGoalTest <S> goalTest, IStepCostFunction <A, S, C> stepCost, ISuccessorFunction <A, S> successor, IHeuristicFunction <S, C> heuristicFn)
{
this.goalTest = goalTest;
this.stepCost = stepCost;
this.successorFn = successor;
this.heuristicFn = heuristicFn;
}
public OnlineSearchProblem(IActionsFunction actionsFunction,
IGoalTest goalTest, IStepCostFunction stepCostFunction)
{
this.ActionsFunction = actionsFunction;
this.GoalTest = goalTest;
this.StepCostFunction = stepCostFunction;
}
/**
* Constructor
*/
public NondeterministicProblem(S initialState,
IActionsFunction <S, A> actionsFn, IResultsFunction <S, A> resultsFn,
GoalTest <S> goalTest, IStepCostFunction <S, A> stepCostFn)
{
this.initialState = initialState;
this.actionsFn = actionsFn;
this.resultsFn = resultsFn;
this.goalTest = goalTest;
this.stepCostFn = stepCostFn;
}
public Problem(object initialState, IActionsFunction actionsFunction,
IResultFunction resultFunction, IGoalTest goalTest,
IStepCostFunction stepCostFunction)
{
this.InitialState = initialState;
this.ActionsFunction = actionsFunction;
this.ResultFunction = resultFunction;
this.GoalTest = goalTest;
this.StepCostFunction = stepCostFunction;
}
public void setUp()
{
ExtendableMap aMap = new ExtendableMap();
aMap.addBidirectionalLink("A", "B", 5.0);
aMap.addBidirectionalLink("A", "C", 6.0);
aMap.addBidirectionalLink("B", "C", 4.0);
aMap.addBidirectionalLink("C", "D", 7.0);
aMap.addUnidirectionalLink("B", "E", 14.0);
actionsFn = MapFunctions.createActionsFunction(aMap);
resultFn = MapFunctions.createResultFunction();
stepCostFn = MapFunctions.createDistanceStepCostFunction(aMap);
}
public Problem(
string initialState,
MoveToActionsFunction actionsFunction,
IResultFunction resultFunction,
IGoalTest goalTest,
IStepCostFunction stepCostFunction
)
{
m_initialState = initialState;
m_actionsFunction = actionsFunction;
m_resultFunction = resultFunction;
m_goalTest = goalTest;
m_stepCostFunction = stepCostFunction;
}
public IList <Node> ExpandNode(Node node, Problem problem)
{
IList <Node> childNodes = new List <Node>();
IActionsFunction actionsFunction = problem.ActionsFunction;
IResultFunction resultFunction = problem.ResultFunction;
IStepCostFunction stepCostFunction = problem.StepCostFunction;
foreach (IAction action in actionsFunction.Actions(node.State))
{
object successorState = resultFunction.Result(node.State, action);
double stepCost = stepCostFunction.C(node.State, action, successorState);
childNodes.Add(new Node(successorState, node, action, stepCost));
}
this.Metrics.Set(MetricNodesExpanded, this.Metrics.GetInt(MetricNodesExpanded) + 1);
return(childNodes);
}
public SearchProblem(IGoalTest <S> goalTest, IStepCostFunction <A, S, C> stepCost, ISuccessorFunction <A, S> successor)
: this(goalTest, stepCost, successor, null)
{
}