static void Procedure_Search(Char endChar, int lastPoint)
{
goalNode = nodes[lastPoint];
while (!nodeBank.Contains(nodes[lastPoint]))
{
List <Rules> usedOnes = new List <Rules>();
START0:
Rules rulesUsing = PickRule(nodes[lastPoint], usedOnes, "");
usedOnes.Add(rulesUsing);
if (endProg)
{
goto Endofit;
}
file.Write(" " + iteration + ") Goal " + nodes[lastPoint].getName() + ". Find R" + rulesUsing.getRuleNo() + ":");
iteration++;
if (rulesUsing.getRulElem() == 3)
{
rulesUsing.getNode().calledP();
file.WriteLine(rulesUsing.getNode().getName() + "," + rulesUsing.getNode2().getName() + "," + rulesUsing.getNode3().getName() +
"->" + rulesUsing.getAim().getName() + ". New goals " +
rulesUsing.getNode().getName() + ", " + rulesUsing.getNode2().getName() + ", " + rulesUsing.getNode3().getName() + ".");
if (Procedure_Search2(rulesUsing.getNode(), 1))
{
nodeBank.Add(rulesUsing.getNode());
rulesUsing.getNode2().calledP();
iteration++;
if (Procedure_Search2(rulesUsing.getNode2(), 2))
{
nodeBank.Add(rulesUsing.getNode2());
rulesUsing.getNode3().calledP();
iteration++;
if (Procedure_Search2(rulesUsing.getNode3(), 3))
{
nodeBank.Add(rulesUsing.getNode3());
trePlus = 0;
initialState(rulesUsing.getNode3(), "-");
file.WriteLine(". Back, OK.");
iteration++;
rulesUsed.Add(rulesUsing);
goal = true;
}
else
{
nodeBank.Remove(rulesUsing.getNode2());
}
}
else
{
nodeBank.Remove(rulesUsing.getNode());
}
}
}
else if (rulesUsing.getRulElem() == 2)
{
rulesUsing.getNode().calledP();
file.WriteLine(rulesUsing.getNode().getName() + "," + rulesUsing.getNode2().getName() +
"->" + rulesUsing.getAim().getName() + ". New goals " +
rulesUsing.getNode().getName() + "," + rulesUsing.getNode2().getName() + ".");
if (Procedure_Search2(rulesUsing.getNode(), 1))
{
nodeBank.Add(rulesUsing.getNode());
initialState(rulesUsing.getNode(), "-");
file.WriteLine(". Back, OK.");
rulesUsing.getNode2().calledP();
nodeZero();
iteration++;
if (Procedure_Search2(rulesUsing.getNode2(), 1))
{
if (!nodeBank.Contains(rulesUsing.getNode2()))
{
nodeBank.Add(rulesUsing.getNode2());
}
trePlus = 0;
initialState(rulesUsing.getNode2(), "-");
file.WriteLine(". Back, OK.");
iteration++;
rulesUsed.Add(rulesUsing);
goal = true;
}
else
{
nodeBank.Remove(rulesUsing.getNode());
}
}
}
else
{
rulesUsing.getNode().calledP();
file.WriteLine(rulesUsing.getNode().getName() +
"->" + rulesUsing.getAim().getName() + ". New goal " +
rulesUsing.getNode().getName() + ".");
if (Procedure_Search2(rulesUsing.getNode(), 1))
{
if (!nodeBank.Contains(rulesUsing.getNode()))
{
nodeBank.Add(rulesUsing.getNode());
}
trePlus = 0;
initialState(rulesUsing.getNode(), "-");
file.WriteLine(". Back, OK.");
iteration++;
rulesUsed.Add(rulesUsing);
goal = true;
}
}
if (goal)
{
nodeBank.Add(nodes[lastPoint]);
initialState(nodes[lastPoint], "");
file.WriteLine(". OK.");
}
if (rulesUsing != null && !goal)
{
rulesUsed.Clear();
goto START0;
}
Endofit:
break;
}
}
static bool Procedure_Search2(Node goalNode, int step)
{
earlyInfered = goalNode;
string tre = new string('-', step);
List <Rules> usedOnes = new List <Rules>();
START1:
if (nodeBank.Contains(goalNode))
{
return(true);
}
Rules rulesUsing = PickRule(goalNode, usedOnes, tre);
usedOnes.Add(rulesUsing);
if (rulesUsing != null)
{
file.Write(" " + iteration + ") " + tre + "Goal " + goalNode.getName() + ". Find R" + rulesUsing.getRuleNo() + ":");
iteration++;
if (rulesUsing.getRulElem() == 3)
{
rulesUsing.getNode().calledP();
file.WriteLine(rulesUsing.getNode().getName() + "," + rulesUsing.getNode2().getName() + "," + rulesUsing.getNode3().getName() +
"->" + rulesUsing.getAim().getName() + ". New goals " +
rulesUsing.getNode().getName() + ", " + rulesUsing.getNode2().getName() + ", " + rulesUsing.getNode3().getName() + ".");
if (Procedure_Search2(rulesUsing.getNode(), step + 1))
{
if (!nodeBank.Contains(rulesUsing.getNode()))
{
nodeBank.Add(rulesUsing.getNode());
}
rulesUsing.getNode2().calledP();
if (Procedure_Search2(rulesUsing.getNode2(), step + 2))
{
if (!nodeBank.Contains(rulesUsing.getNode2()))
{
nodeBank.Add(rulesUsing.getNode2());
}
rulesUsing.getNode3().calledP();
if (Procedure_Search2(rulesUsing.getNode3(), step + 3))
{
if (earlyInfered == rulesUsing.getNode3() && trePlus < 1)
{
trePlus++;
}
if (!nodeBank.Contains(rulesUsing.getNode3()))
{
nodeBank.Add(rulesUsing.getNode3());
}
initialState(rulesUsing.getNode3(), tre);
iteration++;
rulesUsed.Add(rulesUsing);
file.WriteLine(". Back, OK.");
return(true);
}
}
else
{
nodeBank.Remove(rulesUsing.getNode2());
}
}
nodeBank.Remove(rulesUsing.getNode());
}
else if (rulesUsing.getRulElem() == 2)
{
rulesUsing.getNode().calledP();
file.WriteLine(rulesUsing.getNode().getName() + "," + rulesUsing.getNode2().getName() +
"->" + rulesUsing.getAim().getName() + ". New goals " +
rulesUsing.getNode().getName() + "," + rulesUsing.getNode2().getName() + ".");
if (Procedure_Search2(rulesUsing.getNode(), step + 1))
{
if (!nodeBank.Contains(rulesUsing.getNode()))
{
nodeBank.Add(rulesUsing.getNode());
}
rulesUsing.getNode2().calledP();
if (Procedure_Search2(rulesUsing.getNode2(), step + 2))
{
if (earlyInfered == rulesUsing.getNode2() && trePlus < 1)
{
trePlus++;
}
if (!nodeBank.Contains(rulesUsing.getNode2()))
{
nodeBank.Add(rulesUsing.getNode2());
}
initialState(rulesUsing.getNode2(), tre);
iteration++;
file.WriteLine(". Back, OK.");
rulesUsed.Add(rulesUsing);
return(true);
}
}
else
{
nodeBank.Remove(rulesUsing.getNode());
}
}
else
{
rulesUsing.getNode().calledP();
file.WriteLine(rulesUsing.getNode().getName() +
"->" + rulesUsing.getAim().getName() + ". New goal " +
rulesUsing.getNode().getName() + ".");
if (Procedure_Search2(rulesUsing.getNode(), step + 1))
{
if (earlyInfered == rulesUsing.getNode() && trePlus < 1)
{
trePlus++;
}
if (!nodeBank.Contains(rulesUsing.getNode()))
{
nodeBank.Add(rulesUsing.getNode());
}
initialState(rulesUsing.getNode(), tre);
iteration++;
file.WriteLine(". Back, OK.");
rulesUsed.Add(rulesUsing);
return(true);
}
}
}
if (rulesUsing == null)
{
return(false);
}
else
{
goto START1;
}
}