You can use PGraphics and createGraphics() to draw your flowers on top of the blinking lights.
Above setup, declare:
PGraphics flowers;
in setup(), initialize:
flowers = createGraphics(800, 800); // note that 800, 800 is same size as your window in setup so you can draw anywhere inside your sketch window and the flowers will show up
In if (mousePressed == true)
draw (mouse click your flower shapes.
The structure looks like this:
if (mousePressed == true) {
flowers.beginDraw();
flowers.fill(0);
flowers.ellipse(mouseX, mouseY, 50, 50);
flowers.endDraw();
}
image(flowers, 0, 0);
}
You can read more about createGraphics() here:
Basically with PGraphics you are creating another layer that sits above your sketch. I have heard others describe it as a sketch within a sketch.
