public enum MovementDirections
{
    Up, // (0,1)
    Down, // (0,-1)
    Left, // (-1,0)
    Right // (1,0)
}

public int PosX { get; set; }

public int PosY { get; set; }

public List<Cell> GetCellsOnPath(MovementDirections movementDirection) // The direction Vector
{
    List<Cell> cellsOnPath = new List<Cell>();

    switch (movementDirection)
    {
        case MovementDirections.Up:
            for (int i = 0; i < mapCells.Count; i++)
            {
                Cell currentCell = mapCells[i];

                if (currentCell.PosY > playerInfo.CurrentCell.PosY)
                {
                    cellsOnPath.Add(currentCell);
                }
            }
            break;

        case MovementDirections.Down:
            for (int i = 0; i < mapCells.Count; i++)
            {
                Cell currentCell = mapCells[i];

                if (currentCell.PosY < playerInfo.CurrentCell.PosY)
                {
                    cellsOnPath.Add(currentCell);
                }
            }
            break;

        case MovementDirections.Left:
            for (int i = 0; i < mapCells.Count; i++)
            {
                Cell currentCell = mapCells[i];

                if (currentCell.PosX < playerInfo.CurrentCell.PosX)
                {
                    cellsOnPath.Add(currentCell);
                }
            }
            break;

        case MovementDirections.Right:
            for (int i = 0; i < mapCells.Count; i++)
            {
                Cell currentCell = mapCells[i];

                if (currentCell.PosX > playerInfo.CurrentCell.PosX)
                {
                    cellsOnPath.Add(currentCell);
                }
            }
            break;
    }

    return cellsOnPath;
}