public Door GetDoor(DirectionsEight dir)
{
var door = _doors[(int)dir];
if (door != null)
{
return(door);
}
if (!dir.IsCardinal())
{
return(null);
}
var adjacent = dir.Adjacent();
for (int i = 0; i < adjacent.Length; i++)
{
door = _doors[(int)adjacent[i]];
if (door != null)
{
return(door);
}
}
return(null);
}