Processing should define Array just like it has Vector

p5.js Development
18

On the other hand, 2D-arrays are not too hard to handle.

Here is an example.



int[][] grid = new int [6][12];

size(700, 700);
background(0);

// ----------------------------------------------------------------

// make grid
for (int x = 0; x < 6; x++) {
  for (int y = 0; y < 6; y++) {
    grid[x][y] = int(random (99));
  }
}

// ----------------------------------------------------------------

// display grid
// step 1: upper und left numbers
for (int x = 0; x < 6; x++)
  text (x, x * 22 +33, 14);
for (int y = 0; y < 6; y++)
  text (y, 13, y * 22 +40);

// step 2: line --->
{
  int y=0;
  stroke(255);
  line (
    13, y * 22 +20,
    13+140, y * 22 +20);
}
// step 3: line | downwards
{
  int x=0;
  stroke(255);
  line (
    x * 22 +23, 14,
    x * 22 +23, 154);
}

// step 4: grid (main part)
for (int x = 0; x < 6; x++) {
  for (int y = 0; y < 6; y++) {
    text (grid[x][y], x * 22 +33, y * 22 +40);
  }
}

// ----------------------------------------------------------------

// show one position
int x = 4;
int y = 5;
int oneValue = grid[x][y];
//
text ("Position "
  + x
  + ", "
  + y
  + " :\n"
  + oneValue,
  x * 22 +310, y * 22 +330);
//
// ----------------------------------------------------------------
//

Even when you had a proper class encapsulating the 2D-Array you would still have commands like

gridTools.make(17,24); 
gridTools.get(4,5); 
gridTools.set(4,5); 
gridTools.display(110,200); 
gridTools.save("grid1.csv");
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