Interface IConnectionFilter

bool IsValidConnection (

int	dataIndex	Index of the node for which the connection is being tested. This is the index in the data arrays for the graph update, not necessarily the index in the graph.
int	dataX	X coordinate of the node for which the connection is being tested, relative to the updated region.
int	dataLayer	Layer (Y) coordinate of the node for which the connection is being tested, relative to the updated region.
int	dataZ	Z coordinate of the node for which the connection is being tested, relative to the updated region.
int	direction	Direction to the neighbour. See GridNode.HasConnectionInDirection.
int	neighbourDataIndex	Index of the neighbour node. This is the index in the data arrays for the graph update, not necessarily the index in the graph.

)

Returns true if the connection should be enabled.