/// <summary>
/// Gets the tiles along a path or null if any invalid tiles are encountered.
/// </summary>
/// <param name="map">The map.</param>
/// <param name="path">The path.</param>
public IEnumerable <Coordinates> GetTiles(Map map, IEnumerable <Point> path)
{
var bresenham = new Bresenham <Coordinates>((x, y) => new Coordinates(x, y));
var lastPosition = path.First();
var tiles = new List <Coordinates>();
foreach (var position in path.Skip(1))
{
var start = map.PositionToCoordinates(position);
var end = map.PositionToCoordinates(lastPosition);
var coordinates = bresenham.GetCoordinates(start.X, start.Y, end.X, end.Y);
if (coordinates.Any(c => !CheckCoordinates(c.X, c.Y)))
{
return(null);
}
else
{
tiles.AddRange(coordinates);
}
lastPosition = position;
}
return(tiles);
}
