/// <summary>
/// Creates and adds the new innovation defined by the in node and out node to the hash table of existing innovations.
/// </summary>
/// <param name="inNodeId">The id of the node that is at the beginning of the associated connection.</param>
/// <param name="outNodeId">The id of the node that is at the end of the associated connection.</param>
/// <param name="innovationType">The type of innovation that is being created.</param>
public void CreateNewInnovation(int inNodeId, int outNodeId, Innovation.TYPE innovationType)
{
// Create the new innovation to add
Innovation newInnovation = null;
// Add a new innovation to the existing innovations depending on whether it is a node or connection innovation
if (innovationType == Innovation.TYPE.NEW_NODE)
{
newInnovation = new Innovation(CurrentInnovation++, innovationType, CurrentNodeId++, inNodeId, outNodeId);
}
else if (innovationType == Innovation.TYPE.NEW_CONNECTION)
{
newInnovation = new Innovation(CurrentInnovation++, innovationType, -1, inNodeId, outNodeId);
}
ExistingInnovations.Add(newInnovation);
}
/// <summary>
/// Checks the hash table of existing innovations for the innovation specified from the in node and out nodes.
/// </summary>
/// <param name="inNodeId">The id of the node that is at the beginning of the associated connection.</param>
/// <param name="outNodeId">The id of the node that is at the end of the associated connection.</param>
/// <param name="innovationType">The type of innovation that is being checked.</param>
/// <returns>Returns the node id if this is a node innovation, otherwise returns innovation id. Returns -1 if the innovation does not yet exist.</returns>
public int CheckInnovation(int inNodeId, int outNodeId, Innovation.TYPE innovationType)
{
// Iterate through all existing innovations to check if this innovation exists
foreach (Innovation innovation in ExistingInnovations)
{
if (innovation.InNodeId == inNodeId && innovation.OutNodeId == outNodeId && innovation.Type == innovationType)
{
if (innovationType == Innovation.TYPE.NEW_NODE)
{
return(innovation.NodeId);
}
else if (innovationType == Innovation.TYPE.NEW_CONNECTION)
{
return(innovation.Id);
}
}
}
// Return -1 if this innovation does not yet exist
return(-1);
}