/// <summary>
/// Recursively checks whether this node is a child of the other node
/// </summary>
public bool isChildOf(Node otherNode)
{
if (otherNode == null || otherNode == this)
{
return(false);
}
if (BeginRecursiveSearchLoop())
{
return(false);
}
for (int i = 0; i < inputPorts.Count; i++)
{
ConnectionPort port = inputPorts[i];
for (int t = 0; t < port.connections.Count; t++)
{
Node conBody = port.connections[t].body;
if (conBody == otherNode || conBody.isChildOf(otherNode))
{
StopRecursiveSearchLoop();
return(true);
}
}
}
EndRecursiveSearchLoop();
return(false);
}
/// <summary>
/// Determines whether a connection can be applied between this port and the specified port
/// </summary>
public virtual bool CanApplyConnection(ConnectionPort port)
{
if (port == null || body == port.body || connections.Contains(port))
{
return(false);
}
if (direction == Direction.None && port.direction == Direction.None)
{
return(true); // None-Directive connections can always connect
}
if (direction == Direction.In && port.direction != Direction.Out)
{
return(false); // Cannot connect inputs with anything other than outputs
}
if (direction == Direction.Out && port.direction != Direction.In)
{
return(false); // Cannot connect outputs with anything other than inputs
}
if (!body.canvas.allowRecursion)
{
// Assure no loop would be created
bool loop;
if (direction == Direction.Out)
{
loop = body.isChildOf(port.body);
}
else
{
loop = port.body.isChildOf(body);
}
if (loop)
{
// Loop would be created, not allowed
Debug.LogWarning("Cannot apply connection: Recursion detected!");
return(false);
}
}
return(true);
}
