I could use a for loop for the amount of images but how do i make the random function match the exact location of the rectangles?
It would be good to see some code of yours
In theory you want to have an array (2D or 1D) to stire the information whether the cell has an image or not
If (grid [x][y] == 1 ) {
image(gridImage [x][y] , x*10,y*10);
}