// convenience function - should be called within loadPixels/updatePixels
void pset(int x, int y, color c) { 
  x = constrain(x,0,width-1);    // make sure we not out of bounds
  y = constrain(y,0,height-1);
  pixels[x+width*y] = c; 
}
color pget(int x, int y) { 
  x = constrain(x,0,width-1);
  y = constrain(y,0,height-1);
  return pixels[x+width*y]; 
}
void pset(PImage i, int x, int y, color c) { 
  x = constrain(x,0,i.width-1);
  y = constrain(y,0,i.height-1);
  i.pixels[x+i.width*y] = c; 
}
color pget(PImage i, int x, int y) { 
  x = constrain(x,0,i.width-1);
  y = constrain(y,0,i.height-1);
  return i.pixels[x+i.width*y]; 
}


void draw()
{
  loadPixels();
  for (int y=0; y<height; y++)
    for (int x=0; x<width; x++)
      pset(x,y,color(x*255.0/width, y*255.0/height, mouseX*255.0/width));
  updatePixels();
}

// START NO NOTES
// code used to capture screenshots
void keyReleased() {
  if(key == '`' && !online) save("sketch.png");
}