gistfile1.txt

// So I think this will work, havent tested it though

void draw()
{
  size(500, 500);
  
  // So we want 5 triangles...
  int number_of_triangles = 5;
  // that get 5 times bigger everytime?
  int scaler = 5;

  // Set your starting cordinates...
  int x = number_of_triangles * scaler; // x starts at 45 (5 * 5 = 45)
  int y = 0;                            // y starts at 0
  int w = scaler * 2;                   // w starts at 10 (5 * 2 = 10)
  int h = w;                            // h stays at 10 each time (w = 10 now so we can just reuse that by doing h = w)

  // From 0 to number_of_triangles countin up in 1s -> 0, 1, 2, 3, 4 (notice the < meaning we stop at 4 but we started at 0 so it's still 5 traingles)
  for (int i = 0; i < number_of_triangles; i = i + 1) {
    x = x - scaler;      // x goes down by 5 (scaler) each time
    y = y + scaler * 2;  // y goes up by 10 (scaler * 2) each time
    w = w + scaler * 2;  // w goes up by 10 (scaler * 2) each time
    rect(x, y, w, h);    // draw that shit
  }   
}