public static Xy FlatTo2DIndex(this Array array, int flattenedIndex)
{
#if DEV_MODE && PI_ASSERTATIONS
var test = Xy.Get2DIndex(array, flattenedIndex);
Debug.Assert(test.ToFlattenedIndex(array) == flattenedIndex);
#endif
return(Xy.Get2DIndex(array, flattenedIndex));
}
public static object GetValue(this Array array, Xy index)
{
#if DEV_MODE && PI_ASSERTATIONS
Debug.Assert(array.Rank == 2, "Array.GetValue rank " + array.Rank + " not valid for two-dimensional index.");
if (array.Height() <= index.x)
{
throw new IndexOutOfRangeException("GetCollectionValue array2D Height (" + array.Height() + ") < index.x (" + index.x + ") for array: " + StringUtils.ToString(array));
}
if (array.Width() <= index.y)
{
throw new IndexOutOfRangeException("GetCollectionValue array2D Width (" + array.Width() + ") < index.y (" + index.y + ") for array: " + StringUtils.ToString(array));
}
#endif
return(array.GetValue(index.x, index.y));
}
public static T GetValue <T>(this T[][] jaggedArray, Xy index)
{
return(jaggedArray[index.x][index.y]);
}
public static T GetValue <T>(this T[,] array2D, Xy index)
{
return(array2D[index.x, index.y]);
}
public static int FlattenIndex(this Array array, Xy index)
{
return(index.ToFlattenedIndex(array));
}
/// <summary>
/// Where this Size2D represents the width and height of a two-dimensional collection,
/// converts given flattened index to height and width indexes of a member in the collection.
/// in the collection.
/// </summary>
/// <param name="flattenedIndex"> Zero-based flattened index of a member in a two-dimensional collection. </param>
/// <returns> The two-dimensional index of a member in the collection. </returns>
public Xy Get2DIndex(int flattenedIndex)
{
return(Xy.Get2DIndex(width, flattenedIndex));
}