public bool isGoalState(Object state)
{
Q4State jstate = (Q4State)state;
if (jstate.location.ToLower().Equals("bucharest"))
{
return(true);
}
else
{
return(false);
}
}
private void btnDoDemo_Click(object sender, System.EventArgs e)
{
this.textBox1.Text = (System.Environment.NewLine + "Romania Lugoj To Bucharest Puzzle -->");
Q4State initialState = new Q4State("Lugoj");
try
{
Problem problem = new Problem(initialState,
new Q4SuccessorFunction(),
new Q4GoalTest(),
new Q4StepCostFunction(),
new Q4HeuristicFunction());
//Search search = new BreadthFirstSearch(new TreeSearch());
//Search search = new DepthFirstSearch(new TreeSearch());
//Search search = new DepthFirstSearch(new GraphSearch());
//Search search = new DepthLimitedSearch(9);
//Search search = new IterativeDeepeningSearch();
Search search = new AStarSearch(new TreeSearch());
ArrayList solution = search.search(problem);
if (solution.Count == 0)
{ //empty list means failure
this.textBox1.Text += (System.Environment.NewLine + "No Solution" + System.Environment.NewLine);
}
for (int i = 0; i < solution.Count; i++)
{
this.textBox1.Text += solution[i].ToString() + System.Environment.NewLine;
}
//Printing metrics
Metrics searchMetrics = search.getMetrics();
IEnumerator iter = searchMetrics.keySet().GetEnumerator();
while (iter.MoveNext())
{
String key = (String)iter.Current;
String value = searchMetrics.get(key);
this.textBox1.Text += (System.Environment.NewLine + key + ": " + value);
}
}
catch (Exception ex)
{
this.textBox1.Text += ex.Message;
}
}
public override bool Equals(object obj)
{
Q4State state = (Q4State)obj;
return(location.ToLower().Equals(state.location.ToLower()));
}
public Q4State(Q4State state)
{
this.location = state.location;
}
public Q4State(Q4State state)
{
this.location = state.location;
}
public ArrayList getSuccessors(Object state)
{
ArrayList list = new ArrayList(20);
Q4State jstate = (Q4State)state;
string location = jstate.location;
Successor s;
Q4State successor_state;
//these functions are used to track the expanded nodes step/heuristic costs
//Q4StepCostFunction sn = new Q4StepCostFunction();
//Q4HeuristicFunction hn = new Q4HeuristicFunction();
//System.out.println("Expanding " + location);
if (location.Equals("Oradea"))
{
successor_state = new Q4State("Zerind");
s = new Successor("go to Zerind", successor_state);
list.Add(s);
successor_state = new Q4State("Sibiu");
s = new Successor("go to Sibiu", successor_state);
list.Add(s);
}
else if (location.Equals("Zerind"))
{
successor_state = new Q4State("Oradea");
s = new Successor("go to Oradea", successor_state);
list.Add(s);
successor_state = new Q4State("Arad");
s = new Successor("go to Arad", successor_state);
list.Add(s);
}
else if (location.Equals("Arad"))
{
successor_state = new Q4State("Zerind");
s = new Successor("go to Zerind", successor_state);
list.Add(s);
successor_state = new Q4State("Timisoara");
s = new Successor("go to Timisoara", successor_state);
list.Add(s);
}
else if (location.Equals("Timisoara"))
{
successor_state = new Q4State("Arad");
s = new Successor("go to Arad", successor_state);
list.Add(s);
successor_state = new Q4State("Lugoj");
s = new Successor("go to Lugoj", successor_state);
list.Add(s);
}
else if (location.Equals("Lugoj"))
{
successor_state = new Q4State("Timisoara");
s = new Successor("go to Timisoara", successor_state);
list.Add(s);
successor_state = new Q4State("Mehadia");
s = new Successor("go to Mehadia", successor_state);
list.Add(s);
}
else if (location.Equals("Mehadia"))
{
successor_state = new Q4State("Dobreta");
s = new Successor("go to Dobreta", successor_state);
list.Add(s);
successor_state = new Q4State("Lugoj");
s = new Successor("go to Lugoj", successor_state);
list.Add(s);
}
else if (location.Equals("Dobreta"))
{
successor_state = new Q4State("Mehadia");
s = new Successor("go to Mehadia", successor_state);
list.Add(s);
successor_state = new Q4State("Craiova");
s = new Successor("go to Craiova", successor_state);
list.Add(s);
}
else if (location.Equals("Sibiu"))
{
successor_state = new Q4State("Arad");
s = new Successor("go to Arad", successor_state);
list.Add(s);
successor_state = new Q4State("Oradea");
s = new Successor("go to Oradea", successor_state);
list.Add(s);
successor_state = new Q4State("Fagaras");
s = new Successor("go to Fagaras", successor_state);
list.Add(s);
successor_state = new Q4State("Rimnicu Vilcea");
s = new Successor("go to Rimnicu Vilcea", successor_state);
list.Add(s);
}
else if (location.Equals("Rimnicu Vilcea"))
{
successor_state = new Q4State("Sibiu");
s = new Successor("go to Sibiu", successor_state);
list.Add(s);
successor_state = new Q4State("Pitesti");
s = new Successor("go to Pitesti", successor_state);
list.Add(s);
successor_state = new Q4State("Craiova");
s = new Successor("go to Craiova", successor_state);
list.Add(s);
}
else if (location.Equals("Craiova"))
{
successor_state = new Q4State("Rimnicu Vilcea");
s = new Successor("go to Rimnicu Vilcea", successor_state);
list.Add(s);
successor_state = new Q4State("Dobreta");
s = new Successor("go to Dobreta", successor_state);
list.Add(s);
successor_state = new Q4State("Pitesti");
s = new Successor("go to Pitesti", successor_state);
list.Add(s);
}
else if (location.Equals("Pitesti"))
{
successor_state = new Q4State("Rimnicu Vilcea");
s = new Successor("go to Rimnicu Vilcea", successor_state);
list.Add(s);
successor_state = new Q4State("Craiova");
s = new Successor("go to Craiova", successor_state);
list.Add(s);
successor_state = new Q4State("Bucharest");
s = new Successor("go to Bucharest", successor_state);
list.Add(s);
}
else if (location.Equals("Fagaras"))
{
successor_state = new Q4State("Sibiu");
s = new Successor("go to Sibiu", successor_state);
list.Add(s);
successor_state = new Q4State("Bucharest");
s = new Successor("go to Bucharest", successor_state);
list.Add(s);
}
else if (location.Equals("Bucharest"))
{
successor_state = new Q4State("Fagaras");
s = new Successor("go to Fagaras", successor_state);
list.Add(s);
successor_state = new Q4State("Pitesti");
s = new Successor("go to Pitesti", successor_state);
list.Add(s);
successor_state = new Q4State("Giurgiu");
s = new Successor("go to Giurgiu", successor_state);
list.Add(s);
successor_state = new Q4State("Urziceni");
s = new Successor("go to Urziceni", successor_state);
list.Add(s);
}
else if (location.Equals("Giurgiu"))
{
successor_state = new Q4State("Bucharest");
s = new Successor("go to Bucharest", successor_state);
list.Add(s);
}
else if (location.Equals("Urziceni"))
{
successor_state = new Q4State("Bucharest");
s = new Successor("go to Bucharest", successor_state);
list.Add(s);
successor_state = new Q4State("Vaslui");
s = new Successor("go to Vaslui", successor_state);
list.Add(s);
successor_state = new Q4State("Hirsova");
s = new Successor("go to Hirsova", successor_state);
list.Add(s);
}
else if (location.Equals("Vaslui"))
{
successor_state = new Q4State("Urziceni");
s = new Successor("go to Urziceni", successor_state);
list.Add(s);
successor_state = new Q4State("Iasi");
s = new Successor("go to Iasi", successor_state);
list.Add(s);
}
else if (location.Equals("Iasi"))
{
successor_state = new Q4State("Vaslui");
s = new Successor("go to Vaslui", successor_state);
list.Add(s);
successor_state = new Q4State("Neamt");
s = new Successor("go to Neamt", successor_state);
list.Add(s);
}
else if (location.Equals("Neamt"))
{
successor_state = new Q4State("Iasi");
s = new Successor("go to Iasi", successor_state);
list.Add(s);
}
else if (location.Equals("Hirsova"))
{
successor_state = new Q4State("Urziceni");
s = new Successor("go to Urziceni", successor_state);
list.Add(s);
successor_state = new Q4State("Eforie");
s = new Successor("go to Eforie", successor_state);
list.Add(s);
}
else if (location.Equals("Eforie"))
{
successor_state = new Q4State("Hirsova");
s = new Successor("go to Hirsova", successor_state);
list.Add(s);
}
return(list);
}
//the step cost is the amount of water that's been transfered. To get it just sum up the absolute val of the differences
//in each jug from one state to the next
public double calculateStepCost(Object fromState, Object toState, string action)
{
Q4State Q4FromState = (Q4State)fromState;
Q4State Q4ToState = (Q4State)toState;
string from = Q4FromState.location;
string to = Q4ToState.location;
if ((from.Equals("Oradea") && to.Equals("Zerind")) ||
(from.Equals("Zerind") && to.Equals("Oradea")))
{
return(71);
}
else if ((from.Equals("Oradea") && to.Equals("Sibiu")) ||
(from.Equals("Sibiu") && to.Equals("Oradea")))
{
return(151);
}
else if ((from.Equals("Zerind") && to.Equals("Arad")) ||
(from.Equals("Arad") && to.Equals("Zerind")))
{
return(75);
}
else if ((from.Equals("Arad") && to.Equals("Sibiu")) ||
(from.Equals("Sibiu") && to.Equals("Arad")))
{
return(140);
}
else if ((from.Equals("Arad") && to.Equals("Timisoara")) ||
(from.Equals("Timisoara") && to.Equals("Arad")))
{
return(118);
}
else if ((from.Equals("Timisoara") && to.Equals("Lugoj")) ||
(from.Equals("Lugoj") && to.Equals("Timisoara")))
{
return(111);
}
else if ((from.Equals("Lugoj") && to.Equals("Mehadia")) ||
(from.Equals("Mehadia") && to.Equals("Lugoj")))
{
return(70);
}
else if ((from.Equals("Mehadia") && to.Equals("Dobreta")) ||
(from.Equals("Dobreta") && to.Equals("Mehadia")))
{
return(75);
}
else if ((from.Equals("Dobreta") && to.Equals("Craiova")) ||
(from.Equals("Craiova") && to.Equals("Dobreta")))
{
return(120);
}
else if ((from.Equals("Craiova") && to.Equals("Rimnicu Vilcea")) ||
(from.Equals("Rimnicu Vilcea") && to.Equals("Craiova")))
{
return(146);
}
else if ((from.Equals("Craiova") && to.Equals("Pitesti")) ||
(from.Equals("Pitesti") && to.Equals("Craiova")))
{
return(138);
}
else if ((from.Equals("Rimnicu Vilcea") && to.Equals("Sibiu")) ||
(from.Equals("Sibiu") && to.Equals("Rimnicu Vilcea")))
{
return(80);
}
else if ((from.Equals("Rimnicu Vilcea") && to.Equals("Pitesti")) ||
(from.Equals("Pitesti") && to.Equals("Rimnicu Vilcea")))
{
return(97);
}
else if ((from.Equals("Sibiu") && to.Equals("Fagaras")) ||
(from.Equals("Fagaras") && to.Equals("Sibiu")))
{
return(99);
}
else if ((from.Equals("Fagaras") && to.Equals("Bucharest")) ||
(from.Equals("Bucharest") && to.Equals("Fagaras")))
{
return(211);
}
else if ((from.Equals("Pitesti") && to.Equals("Bucharest")) ||
(from.Equals("Bucharest") && to.Equals("Pitesti")))
{
return(101);
}
else if ((from.Equals("Bucharest") && to.Equals("Giurgiu")) ||
(from.Equals("Giurgiu") && to.Equals("Bucharest")))
{
return(90);
}
else if ((from.Equals("Bucharest") && to.Equals("Urziceni")) ||
(from.Equals("Urziceni") && to.Equals("Bucharest")))
{
return(85);
}
else if ((from.Equals("Urziceni") && to.Equals("Vaslui")) ||
(from.Equals("Vaslui") && to.Equals("Urziceni")))
{
return(142);
}
else if ((from.Equals("Vaslui") && to.Equals("Iasi")) ||
(from.Equals("Iasi") && to.Equals("Vaslui")))
{
return(92);
}
else if ((from.Equals("Iasi") && to.Equals("Neamt")) ||
(from.Equals("Neamt") && to.Equals("Iasi")))
{
return(87);
}
else if ((from.Equals("Urziceni") && to.Equals("Hirsova")) ||
(from.Equals("Hirsova") && to.Equals("Urziceni")))
{
return(98);
}
else if ((from.Equals("Hirsova") && to.Equals("Eforie")) ||
(from.Equals("Eforie") && to.Equals("Hirsova")))
{
return(86);
}
return(0);
}
public int getHeuristicValue(Object state)
{
Q4State Q4FromState = (Q4State)state;
string from = Q4FromState.location;
if (from.Equals("Oradea"))
{
return(380);
}
else if (from.Equals("Zerind"))
{
return(374);
}
else if (from.Equals("Arad"))
{
return(366);
}
else if (from.Equals("Timisoara"))
{
return(329);
}
else if (from.Equals("Lugoj"))
{
return(244);
}
else if (from.Equals("Mehadia"))
{
return(241);
}
else if (from.Equals("Dobreta"))
{
return(242);
}
else if (from.Equals("Craiova"))
{
return(160);
}
else if (from.Equals("Rimnicu Vilcea"))
{
return(193);
}
else if (from.Equals("Sibiu"))
{
return(253);
}
else if (from.Equals("Fagaras"))
{
return(176);
}
else if (from.Equals("Pitesti"))
{
return(100);
}
else if (from.Equals("Bucharest"))
{
return(0);
}
else if (from.Equals("Giurgiu"))
{
return(77);
}
else if (from.Equals("Urziceni"))
{
return(80);
}
else if (from.Equals("Vaslui"))
{
return(199);
}
else if (from.Equals("Iasi"))
{
return(226);
}
else if (from.Equals("Neamt"))
{
return(234);
}
else if (from.Equals("Hirsova"))
{
return(151);
}
else if (from.Equals("Eforie"))
{
return(161);
}
return(0);
}
public ArrayList getSuccessors(Object state)
{
ArrayList list = new ArrayList(20);
Q4State jstate = (Q4State) state;
string location = jstate.location;
Successor s;
Q4State successor_state ;
//these functions are used to track the expanded nodes step/heuristic costs
//Q4StepCostFunction sn = new Q4StepCostFunction();
//Q4HeuristicFunction hn = new Q4HeuristicFunction();
//System.out.println("Expanding " + location);
if (location.Equals("Oradea"))
{
successor_state = new Q4State("Zerind");
s = new Successor("go to Zerind", successor_state);
list.Add(s);
successor_state = new Q4State("Sibiu");
s = new Successor("go to Sibiu", successor_state);
list.Add(s);
}
else if (location.Equals("Zerind"))
{
successor_state = new Q4State("Oradea");
s = new Successor("go to Oradea", successor_state);
list.Add(s);
successor_state = new Q4State("Arad");
s = new Successor("go to Arad", successor_state);
list.Add(s);
}
else if (location.Equals("Arad"))
{
successor_state = new Q4State("Zerind");
s = new Successor("go to Zerind", successor_state);
list.Add(s);
successor_state = new Q4State("Timisoara");
s = new Successor("go to Timisoara", successor_state);
list.Add(s);
}
else if (location.Equals("Timisoara"))
{
successor_state = new Q4State("Arad");
s = new Successor("go to Arad", successor_state);
list.Add(s);
successor_state = new Q4State("Lugoj");
s = new Successor("go to Lugoj", successor_state);
list.Add(s);
}
else if (location.Equals("Lugoj"))
{
successor_state = new Q4State("Timisoara");
s = new Successor("go to Timisoara", successor_state);
list.Add(s);
successor_state = new Q4State("Mehadia");
s = new Successor("go to Mehadia", successor_state);
list.Add(s);
}
else if (location.Equals("Mehadia"))
{
successor_state = new Q4State("Dobreta");
s = new Successor("go to Dobreta", successor_state);
list.Add(s);
successor_state = new Q4State("Lugoj");
s = new Successor("go to Lugoj", successor_state);
list.Add(s);
}
else if (location.Equals("Dobreta"))
{
successor_state = new Q4State("Mehadia");
s = new Successor("go to Mehadia", successor_state);
list.Add(s);
successor_state = new Q4State("Craiova");
s = new Successor("go to Craiova", successor_state);
list.Add(s);
}
else if (location.Equals("Sibiu"))
{
successor_state = new Q4State("Arad");
s = new Successor("go to Arad", successor_state);
list.Add(s);
successor_state = new Q4State("Oradea");
s = new Successor("go to Oradea", successor_state);
list.Add(s);
successor_state = new Q4State("Fagaras");
s = new Successor("go to Fagaras", successor_state);
list.Add(s);
successor_state = new Q4State("Rimnicu Vilcea");
s = new Successor("go to Rimnicu Vilcea", successor_state);
list.Add(s);
}
else if (location.Equals("Rimnicu Vilcea"))
{
successor_state = new Q4State("Sibiu");
s = new Successor("go to Sibiu", successor_state);
list.Add(s);
successor_state = new Q4State("Pitesti");
s = new Successor("go to Pitesti", successor_state);
list.Add(s);
successor_state = new Q4State("Craiova");
s = new Successor("go to Craiova", successor_state);
list.Add(s);
}
else if (location.Equals("Craiova"))
{
successor_state = new Q4State("Rimnicu Vilcea");
s = new Successor("go to Rimnicu Vilcea", successor_state);
list.Add(s);
successor_state = new Q4State("Dobreta");
s = new Successor("go to Dobreta", successor_state);
list.Add(s);
successor_state = new Q4State("Pitesti");
s = new Successor("go to Pitesti", successor_state);
list.Add(s);
}
else if (location.Equals("Pitesti"))
{
successor_state = new Q4State("Rimnicu Vilcea");
s = new Successor("go to Rimnicu Vilcea", successor_state);
list.Add(s);
successor_state = new Q4State("Craiova");
s = new Successor("go to Craiova", successor_state);
list.Add(s);
successor_state = new Q4State("Bucharest");
s = new Successor("go to Bucharest", successor_state);
list.Add(s);
}
else if (location.Equals("Fagaras"))
{
successor_state = new Q4State("Sibiu");
s = new Successor("go to Sibiu", successor_state);
list.Add(s);
successor_state = new Q4State("Bucharest");
s = new Successor("go to Bucharest", successor_state);
list.Add(s);
}
else if (location.Equals("Bucharest"))
{
successor_state = new Q4State("Fagaras");
s = new Successor("go to Fagaras", successor_state);
list.Add(s);
successor_state = new Q4State("Pitesti");
s = new Successor("go to Pitesti", successor_state);
list.Add(s);
successor_state = new Q4State("Giurgiu");
s = new Successor("go to Giurgiu", successor_state);
list.Add(s);
successor_state = new Q4State("Urziceni");
s = new Successor("go to Urziceni", successor_state);
list.Add(s);
}
else if (location.Equals("Giurgiu"))
{
successor_state = new Q4State("Bucharest");
s = new Successor("go to Bucharest", successor_state);
list.Add(s);
}
else if (location.Equals("Urziceni"))
{
successor_state = new Q4State("Bucharest");
s = new Successor("go to Bucharest", successor_state);
list.Add(s);
successor_state = new Q4State("Vaslui");
s = new Successor("go to Vaslui", successor_state);
list.Add(s);
successor_state = new Q4State("Hirsova");
s = new Successor("go to Hirsova", successor_state);
list.Add(s);
}
else if (location.Equals("Vaslui"))
{
successor_state = new Q4State("Urziceni");
s = new Successor("go to Urziceni", successor_state);
list.Add(s);
successor_state = new Q4State("Iasi");
s = new Successor("go to Iasi", successor_state);
list.Add(s);
}
else if (location.Equals("Iasi"))
{
successor_state = new Q4State("Vaslui");
s = new Successor("go to Vaslui", successor_state);
list.Add(s);
successor_state = new Q4State("Neamt");
s = new Successor("go to Neamt", successor_state);
list.Add(s);
}
else if (location.Equals("Neamt"))
{
successor_state = new Q4State("Iasi");
s = new Successor("go to Iasi", successor_state);
list.Add(s);
}
else if (location.Equals("Hirsova"))
{
successor_state = new Q4State("Urziceni");
s = new Successor("go to Urziceni", successor_state);
list.Add(s);
successor_state = new Q4State("Eforie");
s = new Successor("go to Eforie", successor_state);
list.Add(s);
}
else if (location.Equals("Eforie"))
{
successor_state = new Q4State("Hirsova");
s = new Successor("go to Hirsova", successor_state);
list.Add(s);
}
return list;
}
private void btnDoDemo_Click(object sender, System.EventArgs e)
{
this.textBox1.Text = (System.Environment.NewLine + "Romania Lugoj To Bucharest Puzzle -->");
Q4State initialState = new Q4State("Lugoj");
try
{
Problem problem = new Problem(initialState,
new Q4SuccessorFunction(),
new Q4GoalTest(),
new Q4StepCostFunction(),
new Q4HeuristicFunction());
//Search search = new BreadthFirstSearch(new TreeSearch());
//Search search = new DepthFirstSearch(new TreeSearch());
//Search search = new DepthFirstSearch(new GraphSearch());
//Search search = new DepthLimitedSearch(9);
//Search search = new IterativeDeepeningSearch();
Search search = new AStarSearch(new TreeSearch());
ArrayList solution = search.search(problem);
if (solution.Count == 0)
{ //empty list means failure
this.textBox1.Text+=(System.Environment.NewLine + "No Solution" + System.Environment.NewLine);
}
for (int i = 0; i < solution.Count; i++)
{
this.textBox1.Text += solution[i].ToString() + System.Environment.NewLine;
}
//Printing metrics
Metrics searchMetrics = search.getMetrics();
IEnumerator iter = searchMetrics.keySet().GetEnumerator();
while (iter.MoveNext())
{
String key = (String) iter.Current;
String value = searchMetrics.get(key);
this.textBox1.Text+=(System.Environment.NewLine + key +": " + value);
}
}
catch (Exception ex)
{
this.textBox1.Text+=ex.Message;
}
}
