/// <summary> TODO low priority: move to class Connector when PSystem is available as singleton
/// Checks whether two connector are mutually compatible (dimension, size, glues).
/// Order of connectors matters due to possibly asymmetric glue relation!
/// </summary>
/// <param name="connector1"></param>
/// <param name="connector2"></param>
public bool AreCompatible(ConnectorOnTile connector1, ConnectorOnTile connector2)
{
return(GlueRelation.ContainsKey(Tuple.Create(connector1.Glue, connector2.Glue)) &&
(connector1.Positions.Count == 1 && connector2.Positions.Count == 1 &&
(connector1.OnTile.Vertices is Segment3D || connector2.OnTile.Vertices is Segment3D)
||
connector1.Positions.Count == 2 && connector2.Positions.Count == 2 &&
Math.Abs(connector1.Positions[0].DistanceTo(connector1.Positions[1]) -
connector2.Positions[0].DistanceTo(connector2.Positions[1])) <= Tolerance));
}
/// <summary>
/// Returns a pair of connectors at distinct positions on tile which match glue1 and glue2 in GlueRelation.
/// If no such pair exist, then both returned connectors are null.
/// Method is used for insertion of the "tile" between existing connectors with "glue1" and "glue2"
/// </summary>
public Tuple <ConnectorOnTile, ConnectorOnTile> MatchingConectors(Tile tile, Glue glue1, Glue glue2)
{
ConnectorOnTile conn2 = null;
var conn1 = tile.Connectors.FirstOrDefault(
connector1 => tile.Vertices.ContainsPoint(connector1.Positions[0]) &&
GlueRelation.MatchAsymmetric(glue1, connector1.Glue) &&
(conn2 = tile.Connectors.FirstOrDefault(
connector2 => !connector1.Positions[0].MyEquals(connector2.Positions[0]) &&
tile.Vertices.ContainsPoint(connector2.Positions[0]) &&
GlueRelation.MatchAsymmetric(glue2, connector2.Glue)))
!= null);
return(Tuple.Create(conn1, conn2));
}
