public bool AddToWeight(Note note, double to_add)
{
if (IsConnected(note))
{
connections[NoteUtil.NoteHash(note)].weight += to_add;
return(true);
}
return(false);
}
// Returns true if adding the node was successful
// Returns false if the Note in the NoteNode being added is already connected
public bool AddConnection(NoteNode note, double weight)
{
if (!IsConnected(note.GetNote()))
{
connections[NoteUtil.NoteHash(note.GetNote())] = new Edge(note, weight);
return(true);
}
return(false);
}
// Returns boolean representing success of the operation
public bool SetWeight(Note note, double new_weight)
{
if (IsConnected(note))
{
connections[NoteUtil.NoteHash(note)].weight = new_weight;
return(true);
}
return(false);
}
private void ModifyConnectionWeight(Note from, Note to, double by)
{
double distribute_to_rest = -((1.00 / (NoteUtil.NOTE_COUNT - 1)) * by);
nodes[NoteUtil.NoteHash(from)].AddToWeight(to, by);
for (int i = 0; i < NoteUtil.NOTE_COUNT; ++i)
{
if (i == NoteUtil.NoteHash(to))
{
continue;
}
nodes[NoteUtil.NoteHash(from)].AddToWeight(nodes[i].GetNote(), distribute_to_rest);
}
}
public NoteGraph()
{
double initial_weight = 1.00 / 22.00;
for (int i = 0; i < NoteUtil.NOTE_COUNT; ++i)
{
nodes[i] = new NoteNode(NoteUtil.GetNoteAtIndex(i));
}
for (int i = 0; i < NoteUtil.NOTE_COUNT; ++i)
{
for (int k = 0; k < NoteUtil.NOTE_COUNT; ++k)
{
nodes[i].AddConnection(nodes[k], initial_weight);
}
}
}
private bool IsConnected(Note note)
{
return(connections[NoteUtil.NoteHash(note)] != null);
}
public double GetEdgeWeight(Note note)
{
return(connections[NoteUtil.NoteHash(note)].weight);
}