public IEnumerable <FitProperties> CanFit(Tile tile)
{
foreach (var rotation in Enum.GetValues(typeof(Rotation)).OfType <Rotation>())
{
var canFit = (NorthTile == null || tile.GetEdge(Directions.North, rotation).FeatureType == NorthTile.GetEdge(Directions.South).FeatureType) &&
(EastTile == null || tile.GetEdge(Directions.East, rotation).FeatureType == EastTile.GetEdge(Directions.West).FeatureType) &&
(SouthTile == null || tile.GetEdge(Directions.South, rotation).FeatureType == SouthTile.GetEdge(Directions.North).FeatureType) &&
(WestTile == null || tile.GetEdge(Directions.West, rotation).FeatureType == WestTile.GetEdge(Directions.East).FeatureType);
if (canFit)
{
var score = 0;
score += NorthTile != null ? 1 : 0;
score += EastTile != null ? 1 : 0;
score += SouthTile != null ? 1 : 0;
score += WestTile != null ? 1 : 0;
score += NorthTile != null && tile.GetEdge(Directions.North, rotation).FeatureType == FeatureTypes.Road ? 1 : 0;
score += EastTile != null && tile.GetEdge(Directions.East, rotation).FeatureType == FeatureTypes.Road ? 1 : 0;
score += SouthTile != null && tile.GetEdge(Directions.South, rotation).FeatureType == FeatureTypes.Road ? 1 : 0;
score += WestTile != null && tile.GetEdge(Directions.West, rotation).FeatureType == FeatureTypes.Road ? 1 : 0;
score += NorthTile != null && tile.GetEdge(Directions.North, rotation).FeatureType == FeatureTypes.City ? 2 : 0;
score += EastTile != null && tile.GetEdge(Directions.East, rotation).FeatureType == FeatureTypes.City ? 2 : 0;
score += SouthTile != null && tile.GetEdge(Directions.South, rotation).FeatureType == FeatureTypes.City ? 2 : 0;
score += WestTile != null && tile.GetEdge(Directions.West, rotation).FeatureType == FeatureTypes.City ? 2 : 0;
yield return(new FitProperties {
Rotation = rotation, Score = score, Point = new Point(X, Y)
});
}
}
}
public bool IsCorner()
{
return((NorthTile.IsWall() || SouthTile.IsWall()) &&
(EastTile.IsWall() || WestTile.IsWall()));
}