public void recursive_depth(State state)
{
if (ClosedSet.ContainsKey(state.Key) == false)
{
ClosedSet.Add(state.Key, state);
}
if (state.IsEqualToGoal())
{
watch.Stop();
SolutionFound(state);
}
else
{
var list = state.BuildChildren();
#if DEBUG
Console.WriteLine("Children of node: {0}", state);
foreach(var item in list){
item.Format();
Console.WriteLine();
}
#endif
foreach (var item in list)
{
if (ClosedSet.ContainsKey(item.Key))
{
#if DEBUG
Console.WriteLine("ClosedSet already contains key {0}", item.Key);
#endif
continue;
}
OpenSet.Push(item);
if(!parents.ContainsKey(item.Key)) parents.Add(item.Key,state);
}
state = OpenSet.Pop();
//Debugger.Break();
if (OpenSet.Count == 0)
{
throw new Exception("no solution");
}
recursive_depth(state);
}
}
public BiDirectional(int[] arr)
{
CurrentState = new State(arr);
}
private void SolutionFound(State FinalState)
{
//Debugger.Break();
var temp = FinalState;
while(true){
if(!frontparents.ContainsKey(temp.Key)) break;
moves.AddLast(frontparents[temp.Key]);
temp = frontparents[temp.Key];
}
temp = FinalState;
while(true){
if(!backparents.ContainsKey(temp.Key)) break;
moves.AddLast(backparents[temp.Key]);
temp = backparents[temp.Key];
}
Console.WriteLine("Move list: ");
var move = moves.First;
int count = 0;
while(move != null){
Console.WriteLine( move.Value );
move = move.Next;
if(count++ > 100)break;
}
if(moves.Count > 100) Console.WriteLine("More than 100 ...");
Console.WriteLine("Goal: ");
new State(GlobalVar.GOAL).Format();
Console.WriteLine("Number of expanded nodes: {0}", moves.Count);
}
public BreadthFirst(int[] arr)
{
CurrentState = new State(arr);
}
public DepthFirstSearch(int[] arr)
{
CurrentState = new State(arr);
}
public astar(int[] arr, bool heuristic)
{
CurrentState = new State(arr);
use_manhattan = heuristic;
}
public greedy(int[] arr)
{
CurrentState = new State(arr);
parents[CurrentState.Key] = null;
}
public void SolutionFound(State FinalState)
{
var temp = FinalState;
while(true){
if(parents[temp.Key] == null) break;
moves.AddFirst(parents[temp.Key]);
temp = parents[temp.Key];
}
Console.WriteLine("Move list: ");
var move = moves.First;
int count = 0;
while(move != null) {
Console.WriteLine( move.Value );
move = move.Next;
if(count++ > 100) break;
}
if(moves.Count > 100) Console.WriteLine("More than 100 ...");
Console.WriteLine("Goal: ");
new State(GlobalVar.GOAL).Format();
Console.WriteLine("Number of expanded nodes: {0}", moves.Count);
}