private IEnumerable <Node> EmitNodes(NodeType type, string name = null, string value = null, bool fallback = false, bool imaginary = false)
{
if (scope.Imaginary)
{
scope.Imaginary = false;
if (type == NodeType.Value)
{
scope.Discarded = true;
}
else if (type == NodeType.Value || type.HasFlag(NodeType.End))
{
scope.Discarded = true;
yield return(new Node(NodeType.Value, null));
}
else
{
yield return(new Node(scope.Type | NodeType.Start, scope.Name));
}
}
if (type.HasFlag(NodeType.Start))
{
scope = new Scope
{
Parent = scope,
Name = name ?? reader.Name,
Type = type & ~NodeType.Start,
Imaginary = imaginary,
Fallback = fallback
};
if (!scope.Imaginary)
{
yield return(new Node(scope.Type | NodeType.Start, scope.Name));
}
}
else if (type.HasFlag(NodeType.End))
{
if (!scope.Discarded)
{
yield return(new Node(type));
}
scope = scope.Parent;
while (scope.Fallback)
{
yield return(new Node(scope.Type | NodeType.End));
scope = scope.Parent;
}
}
else
{
yield return(new Node(type, value?.Trim()));
}
}
/// <summary>
/// Sorts the game explorer row.
/// </summary>
/// <returns>The sorting priority of the row. This value can be -1, 0 or 1 if
/// A sorts before B, A sorts with B or A sorts after B, respectively.</returns>
/// <param name="model">Model.</param>
/// <param name="a">Iter a.</param>
/// <param name="b">Iter b.</param>
private int SortGameTreeRow(ITreeModel model, TreeIter a, TreeIter b)
{
const int sortABeforeB = -1;
const int sortAWithB = 0;
const int sortAAfterB = 1;
var nodeA = (FileNode)model.GetValue(a, 0);
var nodeB = (FileNode)model.GetValue(b, 0);
NodeType typeofA = nodeA.Type;
NodeType typeofB = nodeB.Type;
// Special case for meta nodes - if A is a meta node, but B is not
if (typeofA.HasFlag(NodeType.Meta) && !typeofB.HasFlag(NodeType.Meta))
{
// Then it should always sort after B
return(sortAAfterB);
}
if (typeofB.HasFlag(NodeType.Meta) && !typeofA.HasFlag(NodeType.Meta))
{
// Then it should always sort before B
return(sortABeforeB);
}
if (typeofA < typeofB)
{
return(sortAAfterB);
}
if (typeofA > typeofB)
{
return(sortABeforeB);
}
string nodeAName = this.TreeModel.GetNodeName(nodeA);
string nodeBName = this.TreeModel.GetNodeName(nodeB);
int result = string.CompareOrdinal(nodeAName, nodeBName);
if (result <= sortABeforeB)
{
return(sortAAfterB);
}
if (result >= sortAAfterB)
{
return(sortABeforeB);
}
return(sortAWithB);
}
public static NodeType[] GetCandidate(NodeType type, int level)
{
if (!type.HasFlag(NodeType.FlagAbstract))
{
return(new[] { type });
}
type -= NodeType.FlagAbstract;
if (level > MaxLevel && !type.HasFlag(NodeType.FlagType))
{
return(new[] { NodeType.End });
}
return(candidateTypes.Where(x => (x & type) == type).ToArray());
}
static TreeBase CreateNode(NodeType type)
{
Debug.Assert(!type.HasFlag(NodeType.FlagAbstract));
ModifierType mt;
if (ModifierTable.TryGetValue(type, out mt))
{
return(new Modifier(mt));
}
switch (type)
{
case NodeType.NopA:
return(new Nop(Nop.ConnectionType.A));
case NodeType.NopB:
return(new Nop(Nop.ConnectionType.B));
case NodeType.NopW:
return(new Nop(Nop.ConnectionType.W));
case NodeType.End:
return(new EndA());
case NodeType.Add:
return(new FunctionNode <Adder>());
case NodeType.Mult:
return(new FunctionNode <Multiplier>());
case NodeType.Filter:
return(new FunctionNode <Filter>());
case NodeType.Delay:
return(new FunctionNode <Delay>());
case NodeType.Split:
return(new FunctionNode <Splitter>());
case NodeType.Oscil:
return(new FunctionNode <ConstantOscillator>());
case NodeType.Parabola:
return(new FunctionNode <Parabola>());
case NodeType.Wire:
return(new FunctionNode <Wire>());
case NodeType.Constant:
return(new Constant(RandomProvider.GetThreadRandom().NextDouble() * 2.0 - 1.0));
default:
throw new ArgumentException();
}
}