Reshape arrays 1D to 2D,Reshape 1D array to 2D array

Question

Hi since the only solutions I have found in here are very bulky and very old I would like to ask if there is any way to reshape an Array[] into an Array[]:

.

As an example say we have this array:

[1,2,3,4,5,6,7,8]

.

and say we want to reshape it to an array with 3 columns, the result should be:

[1,2,3]

[4,5,6]

[7,8,null]

Answer 1

Best Answer

Answer by andrew-lukasik · Jul 21, 2020 at 08:51 AM

All you need to do is to pretend this 1D array is 2D instead. Just pretend, that is all.

These two methods will help with that:

 public int Index2dTo1d ( int x , int y , int width ) => y * width + x;
 public Vector2Int Index1dTo2d ( int i ) => new Vector2Int{ x = i%_width , y = i/_width };

 int[] array = new int[]{1,2,3,4,5,6,7,8,9};
 int w = 3;// array width
 int h = 3;// array height
 if( array.Length!=w*h ) Debug.LogError("^^ Your error is somewhere here ^^");

 int i = Index2dTo1d( x:2 , y:1 , width:w );
 int val = array[i];

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Reshape arrays 1D to 2D,Reshape 1D array to 2D array

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