def setup():
    global seed
    size(800, 300, P3D)
    frameRate(10)
    seed = 26876 # novaSemente()

def draw():
    lights()
    background(0)
    randomSeed(seed)
    translate(width / 2, height / 2)
    rotateY(radians(mouseX))
    translate(-width / 2, -height / 2)
    for y in range(30, height, 30):
        for x in range(30, width, 30):
            tamanho = random(5, 25)
            fill(corSorteada())
            caixa(x, y, 0, tamanho)

def keyPressed():
    global seed
    if key == ' ':
        seed = novaSemente()

def novaSemente():
    s = int(random(1000000))
    println("seed: {}".format(s))
    return s

def corSorteada():
    return color(random(256), random(256), random(256))

def caixa(x, y, z,
          w, h=None, d=None):
    h = w if h is None else h    
    d = w if d is None else d
    pushMatrix()
    translate(x, y, z)
    box(w, h, d)
    popMatrix()