/// <summary>
/// Two-dimensional playfield array is cloned as zero-based array for the needs of XML serialization.
/// XML Serializator cannot serialize multi-dimensional arrays.
/// XML Serializator cannot work with interfaces, that's why is used Cell.cs, but not ICell interface
/// </summary>
/// <param name="fieldToCopy"></param>
/// <returns></returns>
private Cell[] CloneToZeroBasedArray(Cell[,] fieldToCopy)
{
int backupArrayLength = fieldToCopy.GetLength(0) * fieldToCopy.GetLength(0);
Cell[] copy = new Cell[backupArrayLength];
int index = 0;
foreach (Cell item in this)
{
copy[index] = item.Clone() as Cell;
index++;
}
return copy;
}
/// <summary>
/// Restores the multidimensional array from the zero-based one comming from the serialization.
/// </summary>
/// <param name="zeroBasedArray"></param>
/// <param name="fieldDimensions"></param>
/// <returns></returns>
private Cell[,] CloneToMultiDimArray(Cell[] zeroBasedArray, int fieldDimensions)
{
Cell[,] copy = new Cell[fieldDimensions, fieldDimensions];
int index = 0;
for (int i = 0; i < fieldDimensions; i++)
{
for (int j = 0; j < fieldDimensions; j++)
{
copy[i, j] = zeroBasedArray[index].Clone() as Cell;
index++;
}
}
return copy;
}
