On Thu, Sep 23, 2010 at 2:23 PM, Louis LaBrunda
<Lou@labrunda.info> wrote:
Hi,
I'm working on an Etoys project I call Pizza Pi. The idea is to calculate
the value of Pi by randomly shooting blobs of tomato sauce at a pizza. The
pizza is in a box. The radius if the pizza is one foot (or one anything)
and just fits in the box. Given these simple dimensions, Pi can be
calculated by the formula Pi = (blobsThatHitPizza * 4) / (blobsThatHitPizza
+ blobsThatMissPizza). The blobs that miss the pizza are confined to the
box.
I am doing this with blobs of sauce that shoot toward the pizza box and
then jump to a random spot in the box. The problem is that when I try to
calculate this random spot the position of the box or the blob is not what
I expect. If I grab a blob and move it to the bottom of the playfield its
y position is -85? I have origin-at-center turned off in the playfield
options, so I would expect the bottom edge of the playfield to be zero not
-85.
I must be missing something, so can someone please clear this up for me.
Thanks.
Lou
-----------------------------------------------------------
Louis LaBrunda
SkypeMe callto://PhotonDemon
mailto:Lou@LaBrunda.Info http://www.LaBrunda.Info
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