shuffle function

Unity Engine
1

I’m doing a puzzle style game to reorder the numbers. I can not write the function to mix the cards. When I press “Space” the situation does not change, they are not mixed.

void Shuffle()
    {
       
            for (int x = 0; x < size; x++)
            {
                for (int y = 0; y < size; y++)
                {
                    Block tmp = blocks[y, x];
                    int k = Random.Range(x, size);
                    int z = Random.Range(y, size);
                    blocks[y, x] = blocks[z, k];
                    blocks[y, x].transform.position = blocks[z, k].transform.position;
                    blocks[k, z] = tmp;
                    blocks[k, z].transform.position = tmp.transform.position;
                   
                }
           
        }
                   
       
       
       
    }
2

when you hit space, do you call this Shuffle function?

3

yes, when hit space i call this function

4

Your indices are messed up – sometimes you use k,z and other times you use z,k.