private DirectionalTileType GetValidTile(Vector2Int coords)
{
var neighborMap = new NeighborhoodMap();
neighborMap.Left = Map.GetType(coords.x - 1, coords.y).HasFace(Faces.Right);
neighborMap.Right = Map.GetType(coords.x + 1, coords.y).HasFace(Faces.Left);
neighborMap.Bottom = Map.GetType(coords.x, coords.y - 1).HasFace(Faces.Top);
neighborMap.Top = Map.GetType(coords.x, coords.y + 1).HasFace(Faces.Bottom);
var validTiles = neighborMap.GetValidDirectionalTiles();
return(validTiles[UnityEngine.Random.Range(0, validTiles.Count)]);
}
public static List <DirectionalTileType> GetValidDirectionalTiles(this NeighborhoodMap neighborhood)
{
var valids = AllDirectionalTiles.ToList();
valids.Remove(DirectionalTileType.Unknown);
if (neighborhood.Top.HasValue && neighborhood.Top.Value)
{
valids.Remove(DirectionalTileType.EndcapLeft);
valids.Remove(DirectionalTileType.EndcapRight);
valids.Remove(DirectionalTileType.EndcapBottom);
valids.Remove(DirectionalTileType.StraightHorizontal);
valids.Remove(DirectionalTileType.TJunctionBottom);
}
if (neighborhood.Right.HasValue && neighborhood.Right.Value)
{
valids.Remove(DirectionalTileType.EndcapTop);
valids.Remove(DirectionalTileType.EndcapBottom);
valids.Remove(DirectionalTileType.EndcapLeft);
valids.Remove(DirectionalTileType.StraightVertical);
valids.Remove(DirectionalTileType.TJunctionLeft);
}
if (neighborhood.Bottom.HasValue && neighborhood.Bottom.Value)
{
valids.Remove(DirectionalTileType.EndcapLeft);
valids.Remove(DirectionalTileType.EndcapRight);
valids.Remove(DirectionalTileType.EndcapTop);
valids.Remove(DirectionalTileType.StraightHorizontal);
valids.Remove(DirectionalTileType.TJunctionTop);
}
if (neighborhood.Left.HasValue && neighborhood.Left.Value)
{
valids.Remove(DirectionalTileType.EndcapTop);
valids.Remove(DirectionalTileType.EndcapBottom);
valids.Remove(DirectionalTileType.EndcapRight);
valids.Remove(DirectionalTileType.StraightVertical);
valids.Remove(DirectionalTileType.TJunctionRight);
}
if (neighborhood.Top.HasValue && !neighborhood.Top.Value)
{
valids.Remove(DirectionalTileType.Intersection);
valids.Remove(DirectionalTileType.EndcapTop);
valids.Remove(DirectionalTileType.StraightVertical);
valids.Remove(DirectionalTileType.TJunctionTop);
valids.Remove(DirectionalTileType.TJunctionLeft);
valids.Remove(DirectionalTileType.TJunctionRight);
}
if (neighborhood.Left.HasValue && !neighborhood.Left.Value)
{
valids.Remove(DirectionalTileType.Intersection);
valids.Remove(DirectionalTileType.EndcapLeft);
valids.Remove(DirectionalTileType.StraightHorizontal);
valids.Remove(DirectionalTileType.TJunctionLeft);
valids.Remove(DirectionalTileType.TJunctionTop);
valids.Remove(DirectionalTileType.TJunctionBottom);
}
if (neighborhood.Right.HasValue && !neighborhood.Right.Value)
{
valids.Remove(DirectionalTileType.Intersection);
valids.Remove(DirectionalTileType.EndcapRight);
valids.Remove(DirectionalTileType.StraightHorizontal);
valids.Remove(DirectionalTileType.TJunctionRight);
valids.Remove(DirectionalTileType.TJunctionTop);
valids.Remove(DirectionalTileType.TJunctionBottom);
}
if (neighborhood.Bottom.HasValue && !neighborhood.Bottom.Value)
{
valids.Remove(DirectionalTileType.Intersection);
valids.Remove(DirectionalTileType.EndcapBottom);
valids.Remove(DirectionalTileType.StraightVertical);
valids.Remove(DirectionalTileType.TJunctionBottom);
valids.Remove(DirectionalTileType.TJunctionLeft);
valids.Remove(DirectionalTileType.TJunctionRight);
}
return(valids);
}
