+ /*
+ * Random π/2-grained rotation of the avatar frames. Avoid
+ * having them π/2 apart, though, as one of them is likely
+ * going to end upside-down and the trick would be revealed.
+ * And I'd have to "draw" a new frame. Ewww.
+ */
+ p0.frameRot = random.nextInt(4) * Math.PI / 2;