"Kenneth" <kdw### [at] earthlinknet> wrote:
> the bricks are all moving in the "+cannonball" direction according to how
> near they are to the cannonball-travel axis...closer means more movement.
Exactly right.

> (Random, of course.)  And they fan out in a cone shape, each stone's random
> distance in those two directions depending on how far each is from the
> center(?) of the castle cylinder (or perhaps from the point of entry.)
Not quite. Each brick starts at its correct position within the tower. Their
movement along the cannonball axis is calculated as a function of their
distance from the axis - it's a one-off translation, no time-factor is
used. Two random vector components orthogonal to the cannonball axis are
scaled with the distance to produce the fanning-out effect. As mentioned
before, there is no gravity.

Smoke and mirrors!

Bill

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