// Curves - Jim Bumgardner

size(500,500);

smooth();

int ntiles  = 10;
int tilesize = width/ntiles;
int w = tilesize;
int h = tilesize;

for (int gy = 0; gy < ntiles; ++gy)
{
 for (int gx = 0; gx < ntiles; ++gx)
 {
  int x = gx*tilesize;
  int y = gy*tilesize;
  strokeWeight(1+int(random(4)));
  noStroke();
  fill(random(255),random(255),random(255));
  rect(x,y,x+w,y+h);
  noFill();
  stroke(random(255),random(255),random(255));
  if (int(random(2)) != 0) {
    bezier(x, y+h/2, x+w/2, y+h/2, 
                 x+w/2, y+h/2, x+w/2, y+h); 
    bezier(x+w, y+h/2, x+w/2, y+h/2, 
                 x+w/2, y+h/2, x+w/2, y ); 
  }
  else {
    bezier(x, y+h/2, x+w/2, y+h/2, 
                 x+w/2, y+h/2, x+w/2, y); 
    bezier(x+w, y+h/2, x+w/2, y+h/2, 
                 x+w/2, y+h/2, x+w/2, y+h); 
  }
 }
}
// save("curves.tiff");