namespace Server.PathAlgorithms;

public abstract class PathAlgorithm
{
    private static readonly Direction[] _calcDirections =
    {
        Direction.Up,
        Direction.North,
        Direction.Right,
        Direction.West,
        Direction.North,
        Direction.East,
        Direction.Left,
        Direction.South,
        Direction.Down
    };

    public abstract bool CheckCondition(Mobile m, Map map, Point3D start, Point3D goal);
    public abstract Direction[] Find(Mobile m, Map map, Point3D start, Point3D goal);

    public static Direction GetDirection(int xSource, int ySource, int xDest, int yDest)
    {
        var x = xDest + 1 - xSource;
        var y = yDest + 1 - ySource;
        var v = y * 3 + x;

        return v is < 0 or >= 9 ? Direction.North : _calcDirections[v];
    }
}