internal static bool TryGetPred(this Knoten node, out Knoten pred)
{
pred = null;
if (node.Pred == null)
{
return(false);
}
pred = node.Pred;
return(true);
}
internal static bool TryGetAt(this Knoten[] graph, int x, int y, int zeilen, out Knoten knoten)
{
var index = y * zeilen + x;
knoten = null;
if (graph[index] != null)
{
knoten = graph[index];
graph[index] = null;
return(true);
}
return(false);
}