public static HashSet <UEdge2i> ConnectedCells_ExpansionEdges_Set(
this PM_Maze maze
)
{
HashSet <UEdge2i> expansionEdges = new HashSet <UEdge2i>();
HashSet <Vec2i> connectedCells = maze.ConnectedCells_Set();
foreach (var cell in connectedCells)
{
if (maze.Q_Is_Cell_Connected(cell))
{
expansionEdges.UnionWith(maze.Cell_ExpansionEdges_Set(cell));
}
}
return(expansionEdges);
}
