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2019/sketch_191215b/sketch_191215b.pyde

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+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()