public static Vector2 GetAdjacent(this Vector2 vector, BorderSide side)
{
switch (side)
{
case BorderSide.Top: return(vector.Translate(0, -1));
case BorderSide.Left: return(vector.Translate(-1, 0));
case BorderSide.Right: return(vector.Translate(1, 0));
case BorderSide.Bottom: return(vector.Translate(0, 1));
case BorderSide.TopLeftCorner: return(vector.Translate(-1, -1));
case BorderSide.TopRightCorner: return(vector.Translate(1, -1));
case BorderSide.BottomLeftCorner: return(vector.Translate(-1, 1));
case BorderSide.BottomRightCorner: return(vector.Translate(1, 1));
case BorderSide.None: return(vector.Translate(0, 0));
default: throw new NotImplementedException();
}
}
public static Vector2 GetAdjacent(this Vector2 vector, Direction dir)
{
return(vector.Translate(dir.ToXY()));
}