/// <summary>
/// Constructs a Function node based upon the XML specification
/// </summary>
/// <param name="FunctionNode"></param>
/// <returns></returns>
private GPNode CreateFunction(XmlNode FunctionNode)
{
XmlNode xmlType = FunctionNode.SelectSingleNode("Function");
XmlNodeList listParams = FunctionNode.SelectNodes("GPNode");
GPNodeFunction gpFunction = null;
//
// See if we have an ADF
if (xmlType.InnerText == "ADF")
{
XmlNode xmlWhichADF = FunctionNode.SelectSingleNode("WhichFunction");
int WhichADF = Convert.ToInt32(xmlWhichADF.InnerText);
gpFunction = new GPNodeFunctionADF(WhichADF, (byte)listParams.Count);
}
else if (xmlType.InnerText == "ADL") // Check for an ADL
{
XmlNode xmlWhichADL = FunctionNode.SelectSingleNode("WhichFunction");
int WhichADL = Convert.ToInt32(xmlWhichADL.InnerText);
gpFunction = new GPNodeFunctionADL(WhichADL, (byte)listParams.Count);
}
else if (xmlType.InnerText == "ADR") // Check for an ADR
{
XmlNode xmlWhichADR = FunctionNode.SelectSingleNode("WhichFunction");
int WhichADR = Convert.ToInt32(xmlWhichADR.InnerText);
gpFunction = new GPNodeFunctionADR(WhichADR, (byte)listParams.Count);
}
else
{
//
// Get the correct function node type created
GPNodeFunction func = (GPNodeFunction)m_FunctionSet[xmlType.InnerText.ToUpper()];
gpFunction = (GPNodeFunction)func.Clone();
}
//
// Build the list of parameters to this node
foreach (XmlNode ParamNode in listParams)
{
gpFunction.Children.Add(ReadGPNode(ParamNode));
}
return(gpFunction);
}
/// <summary>
/// Restores a node from the array representation back into a tree representation
/// </summary>
/// <param name="FunctionSet"></param>
/// <returns>Reference to the converted tree</returns>
public GPNode ConvertNode(IGPFunctionSet FunctionSet)
{
//
// Determine the type of the node
// < 200 : User Defined function
// 200 to 210 : Terminal
// 253 : ADR
// 254 : ADL
// 255 : ADF
if (m_TreeArrayNew[m_ArrayPos] == 255)
{
m_ArrayPos++;
byte WhichADF = m_TreeArrayNew[m_ArrayPos++];
byte NumberArgs = m_TreeArrayNew[m_ArrayPos++];
GPNodeFunctionADF NodeNew = new GPNodeFunctionADF(WhichADF, NumberArgs);
//
// Build up the children before returning
for (byte Child = 0; Child < NumberArgs; Child++)
{
NodeNew.Children.Add(ConvertNode(FunctionSet));
}
return(NodeNew);
}
else if (m_TreeArrayNew[m_ArrayPos] == 254)
{
m_ArrayPos++;
byte WhichADL = m_TreeArrayNew[m_ArrayPos++];
byte NumberArgs = m_TreeArrayNew[m_ArrayPos++];
GPNodeFunctionADL NodeNew = new GPNodeFunctionADL(WhichADL, NumberArgs);
//
// Build up the children before returning
for (byte Child = 0; Child < NumberArgs; Child++)
{
NodeNew.Children.Add(ConvertNode(FunctionSet));
}
return(NodeNew);
}
else if (m_TreeArrayNew[m_ArrayPos] == 253)
{
m_ArrayPos++;
byte WhichADR = m_TreeArrayNew[m_ArrayPos++];
byte NumberArgs = m_TreeArrayNew[m_ArrayPos++];
GPNodeFunctionADR NodeNew = new GPNodeFunctionADR(WhichADR, NumberArgs);
//
// Build up the children before returning
for (byte Child = 0; Child < NumberArgs; Child++)
{
NodeNew.Children.Add(ConvertNode(FunctionSet));
}
return(NodeNew);
}
else if (m_TreeArrayNew[m_ArrayPos] < 200)
{
GPNodeFunction NodeNew = (GPNodeFunction)((GPNodeFunction)FunctionSet[m_TreeArrayNew[m_ArrayPos++]]).Clone();
//
// Build up this node's children first
byte ChildCount = m_TreeArrayNew[m_ArrayPos++];
for (byte Child = 0; Child < ChildCount; Child++)
{
NodeNew.Children.Add(ConvertNode(FunctionSet));
}
return(NodeNew);
}
else // Terminal
{
switch (m_TreeArrayNew[m_ArrayPos++])
{
case 200:
byte WhichADFParam = m_TreeArrayNew[m_ArrayPos++];
GPNodeTerminalADFParam NodeADF = new GPNodeTerminalADFParam(WhichADFParam);
return(NodeADF);
case 201:
byte WhichUserDefined = m_TreeArrayNew[m_ArrayPos++];
GPNodeTerminalUserDefined NodeUser = new GPNodeTerminalUserDefined(WhichUserDefined);
return(NodeUser);
case 202:
double dValue;
unsafe
{
byte *ptr = (byte *)&dValue;
for (int pos = 0; pos < sizeof(double); pos++)
{
ptr[pos] = m_TreeArrayNew[m_ArrayPos++];
}
}
GPNodeTerminalDouble NodeDouble = new GPNodeTerminalDouble(dValue);
return(NodeDouble);
case 203:
int nValue;
unsafe
{
byte *ptr = (byte *)&nValue;
for (int pos = 0; pos < sizeof(int); pos++)
{
ptr[pos] = m_TreeArrayNew[m_ArrayPos++];
}
}
GPNodeTerminalInteger NodeInteger = new GPNodeTerminalInteger(nValue);
return(NodeInteger);
}
}
//
// TODO: Throw an exception, instead of this lazy crap! :)
return(null);
}
/// <summary>
/// Converts a tree node into an array based representation. For functions
/// an byte lookup is used into the FunctionSet, for terminals, the type
/// is recorded along with whatever extra data may be needed.
/// TODO: Get rid of the unsafe code. I know there is a bit conversion
/// function, I just couldn't find it quickly.
/// </summary>
/// <param name="Node">The node to convert</param>
/// <param name="FunctionSet"></param>
private void StoreNode(GPNode Node, IGPFunctionSet FunctionSet)
{
//
// Figure out what kind of node we have and store it accordingly.
if (Node is GPNodeFunction)
{
GPNodeFunction NodeFunction = (GPNodeFunction)Node;
if (NodeFunction is GPNodeFunctionADF)
{
GPNodeFunctionADF adf = (GPNodeFunctionADF)NodeFunction;
//
// For an ADF node,record it as value 255 and then store the which
// ADF it refers to and the number of arguments.
m_TreeArrayNew.Add((byte)255);
m_TreeArrayNew.Add((byte)adf.WhichFunction);
m_TreeArrayNew.Add(adf.NumberArgs);
}
else if (NodeFunction is GPNodeFunctionADL)
{
GPNodeFunctionADL adl = (GPNodeFunctionADL)NodeFunction;
//
// For an ADL node,record it as value 254 and then store the which
// ADL it refers to and the number of arguments.
m_TreeArrayNew.Add((byte)254);
m_TreeArrayNew.Add((byte)adl.WhichFunction);
m_TreeArrayNew.Add(adl.NumberArgs);
}
else if (NodeFunction is GPNodeFunctionADR)
{
GPNodeFunctionADR adr = (GPNodeFunctionADR)NodeFunction;
//
// For an ADR node,record it as value 253 and then store the which
// ADR it refers to and the number of arguments.
m_TreeArrayNew.Add((byte)253);
m_TreeArrayNew.Add((byte)adr.WhichFunction);
m_TreeArrayNew.Add(adr.NumberArgs);
}
else
{
//
// Store the index of the function and then the number of children
// for this function
m_TreeArrayNew.Add((byte)FunctionSet.IndexOfKey(NodeFunction.ToStringUpper()));
m_TreeArrayNew.Add((byte)((GPNodeFunction)Node).Children.Count);
}
//
// Store each of the children
foreach (GPNode NodeChild in NodeFunction.Children)
{
StoreNode(NodeChild, FunctionSet);
}
}
else // Terminal Node
{
//
// Depending upon the type of the terminal, set the appropriate value
if (Node is GPNodeTerminalADFParam)
{
m_TreeArrayNew.Add(200);
m_TreeArrayNew.Add((byte)((GPNodeTerminalADFParam)Node).WhichParameter);
}
else if (Node is GPNodeTerminalUserDefined)
{
m_TreeArrayNew.Add(201);
m_TreeArrayNew.Add((byte)((GPNodeTerminalUserDefined)Node).WhichUserDefined);
}
else if (Node is GPNodeTerminalDouble)
{
m_TreeArrayNew.Add(202);
double dValue = ((GPNodeTerminalDouble)Node).Value;
unsafe
{
byte *ptr = (byte *)&dValue;
for (int pos = 0; pos < sizeof(double); pos++)
{
m_TreeArrayNew.Add(ptr[pos]);
}
}
}
else if (Node is GPNodeTerminalInteger)
{
m_TreeArrayNew.Add(203);
int dValue = ((GPNodeTerminalInteger)Node).Value;
unsafe
{
byte *ptr = (byte *)&dValue;
for (int pos = 0; pos < sizeof(int); pos++)
{
m_TreeArrayNew.Add(ptr[pos]);
}
}
}
}
}
/// <summary>
/// This is a simple factory function that selects from the available
/// list of functions and creates a class of that type.
/// </summary>
/// <param name="UseADF">Select from ADFs</param>
/// <param name="StartADF">Which ADF to start choosing from</param>
/// <param name="UseADL">Select from ADLs</param>
/// <param name="StartADL">Which ADL to start choosing from</param>
/// <param name="UseADR">Select from ADRs</param>
/// <param name="StartADR">Which ADR to start choosing from</param>
protected GPNode CreateNodeFunction(bool UseADF, int StartADF, bool UseADL, int StartADL, bool UseADR, int StartADR)
{
//
// Add up all the different function types that we can choose from
// *"Regular" function types sent over from the client
// *ADFs
// *ADLs
// *ADRs
int Count = m_Config.FunctionSet.Count;
if (UseADF)
{
Count += m_Branch.Parent.ADF.Count - StartADF;
}
if (UseADL)
{
Count += m_Branch.Parent.ADL.Count - StartADL;
}
if (UseADR)
{
Count += m_Branch.Parent.ADR.Count - StartADR;
}
//
// Randomly select from the function node choices.
int Function = GPUtilities.rngNextInt(Count);
//
// See if we chose a "regular" function
if (Function < m_Config.FunctionSet.Count)
{
GPNodeFunction Type = (GPNodeFunction)m_Config.FunctionSet[Function];
return((GPNodeFunction)Type.Clone());
}
//
// See if we chose an ADF
Function -= m_Config.FunctionSet.Count;
if (Function < (m_Branch.Parent.ADF.Count - StartADF))
{
int WhichADF = StartADF + Function;
byte NumberArgs = m_Branch.Parent.ADF[WhichADF].NumberArgs;
GPNodeFunctionADF adfFunc = new GPNodeFunctionADF(WhichADF, NumberArgs);
return(adfFunc);
}
//
// See if we chose an ADL
Function -= m_Config.ADFSet.Count;
if (Function < (m_Branch.Parent.ADL.Count - StartADL))
{
int WhichADL = StartADL + Function;
byte NumberArgs = m_Branch.Parent.ADL[WhichADL].NumberArgs;
GPNodeFunctionADL adlFunc = new GPNodeFunctionADL(WhichADL, NumberArgs);
return(adlFunc);
}
//
// See if we chose an ADR
Function -= m_Config.ADLSet.Count;
if (Function < (m_Branch.Parent.ADR.Count - StartADR))
{
int WhichADR = StartADR + Function;
byte NumberArgs = m_Branch.Parent.ADR[WhichADR].NumberArgs;
GPNodeFunctionADR adrFunc = new GPNodeFunctionADR(WhichADR, NumberArgs);
return(adrFunc);
}
return(null);
}
/// <summary>
/// Given a tree node, the node is translated into code, this method is
/// recursively called for each of the node's children.
/// </summary>
/// <param name="node">The node to translate</param>
protected void WriteProgramBody(GPNode node)
{
//
// Recursively work through the nodes
if (node is GPNodeTerminal)
{
m_Writer.Write(((GPNodeTerminal)node).ToString());
//
// There are no children, so don't need to make a recursive call
}
else if (node is GPNodeFunction)
{
if (node is GPNodeFunctionADF)
{
GPNodeFunctionADF adf = (GPNodeFunctionADF)node;
m_Writer.Write("\n\t\tADF" + adf.WhichFunction);
m_Writer.Write("(");
//
// The parameters to the ADF are its children
for (int Param = 0; Param < adf.NumberArgs; Param++)
{
if (Param > 0)
{
m_Writer.Write(",");
}
WriteProgramBody(((GPNodeFunction)node).Children[Param]);
}
m_Writer.Write(")\n\t\t");
}
else if (node is GPNodeFunctionADL)
{
GPNodeFunctionADL adl = (GPNodeFunctionADL)node;
m_Writer.Write("\n\t\tADL" + adl.WhichFunction);
m_Writer.Write("(");
//
// The parameters to the ADL are its children
for (int Param = 0; Param < adl.NumberArgs; Param++)
{
if (Param > 0)
{
m_Writer.Write(",");
}
WriteProgramBody(((GPNodeFunction)node).Children[Param]);
}
m_Writer.Write(")\n\t\t");
}
else if (node is GPNodeFunctionADR)
{
GPNodeFunctionADR adr = (GPNodeFunctionADR)node;
m_Writer.Write("\n\t\tADR" + adr.WhichFunction);
m_Writer.Write("(");
//
// The parameters to the ADR are its children
for (int Param = 0; Param < adr.NumberArgs; Param++)
{
if (Param > 0)
{
m_Writer.Write(",");
}
WriteProgramBody(((GPNodeFunction)node).Children[Param]);
}
m_Writer.Write(")\n\t\t");
}
else if (node is GPNodeFunctionSetMem)
{
m_Writer.Write("\n\t\tSetMem(");
WriteProgramBody(((GPNodeFunction)node).Children[0]);
m_Writer.Write(",");
WriteProgramBody(((GPNodeFunction)node).Children[1]);
m_Writer.Write(")");
}
else if (node is GPNodeFunctionGetMem)
{
m_Writer.Write("\n\t\tGetMem(");
WriteProgramBody(((GPNodeFunction)node).Children[0]);
m_Writer.Write(")");
}
else
{
m_Writer.Write("\n\t\t" + node.ToString() + "(");
//
// The parameters to the function are its children
for (short Param = 0; Param < m_FunctionSet[node.ToString().ToUpper()].Arity; Param++)
{
if (Param > 0)
{
m_Writer.Write(",");
}
WriteProgramBody(((GPNodeFunction)node).Children[Param]);
}
m_Writer.Write(")");
}
}
else
{
Console.WriteLine("Have an undefined node we are tying to write");
}
}
//
// Gets the function nodes written out
private void WriteFunctionNodeBody(GPNode node)
{
GPNodeFunction nodeFunc = (GPNodeFunction)node;
String sType = node.GetType().ToString();
if (node is GPNodeFunctionADF)
{
GPNodeFunctionADF nodeADF = (GPNodeFunctionADF)nodeFunc;
m_xmlWriter.WriteStartElement("Function");
m_xmlWriter.WriteValue("ADF");
m_xmlWriter.WriteEndElement();
//
// Write out "which" ADF function this is
m_xmlWriter.WriteStartElement("WhichFunction");
m_xmlWriter.WriteValue(nodeADF.WhichFunction);
m_xmlWriter.WriteEndElement();
for (int nParam = 0; nParam < nodeADF.NumberArgs; nParam++)
{
WriteProgramNode(nodeADF.Children[nParam]);
}
}
else if (node is GPNodeFunctionADL)
{
GPNodeFunctionADL nodeADL = (GPNodeFunctionADL)nodeFunc;
m_xmlWriter.WriteStartElement("Function");
m_xmlWriter.WriteValue("ADL");
m_xmlWriter.WriteEndElement();
//
// Write out "which" ADL function this is
m_xmlWriter.WriteStartElement("WhichFunction");
m_xmlWriter.WriteValue(nodeADL.WhichFunction);
m_xmlWriter.WriteEndElement();
for (int nParam = 0; nParam < nodeADL.NumberArgs; nParam++)
{
WriteProgramNode(nodeADL.Children[nParam]);
}
}
else if (node is GPNodeFunctionADR)
{
GPNodeFunctionADR nodeADR = (GPNodeFunctionADR)nodeFunc;
m_xmlWriter.WriteStartElement("Function");
m_xmlWriter.WriteValue("ADR");
m_xmlWriter.WriteEndElement();
//
// Write out "which" ADR function this is
m_xmlWriter.WriteStartElement("WhichFunction");
m_xmlWriter.WriteValue(nodeADR.WhichFunction);
m_xmlWriter.WriteEndElement();
for (int nParam = 0; nParam < nodeADR.NumberArgs; nParam++)
{
WriteProgramNode(nodeADR.Children[nParam]);
}
}
else
{
m_xmlWriter.WriteStartElement("Function");
m_xmlWriter.WriteValue(nodeFunc.ToString());
m_xmlWriter.WriteEndElement();
//
// Write out its children
for (int nParam = 0; nParam < nodeFunc.NumberArgs; nParam++)
{
WriteProgramNode(nodeFunc.Children[nParam]);
}
}
}