This is a read-only archive of the old Scratch 1.x Forums.
Try searching the current Scratch discussion forums.

#26 2012-07-15 20:09:37

AtomicBawm3
Scratcher
Registered: 2009-06-27
Posts: 1000+

Re: Rag Doll Physics

amcerbu wrote:

^^ I don't quite get it.  One piece of advice I can offer, though: the vector perpendicular to <a, b> is <b, -a>.

Actually, that does help, because it means I can cut out a bit of the calculations. Thanks  smile


http://i50.tinypic.com/j0yw0p.jpg

Offline

 

#27 2012-07-15 23:09:59

amcerbu
Scratcher
Registered: 2009-07-21
Posts: 500+

Re: Rag Doll Physics

Great.  There are a few other tricks like that with vectors; dividing both components by the magnitude and then multiplying by a number gives you a vector with a specific length, etc.

Offline

 

#28 2012-07-15 23:30:53

AtomicBawm3
Scratcher
Registered: 2009-06-27
Posts: 1000+

Re: Rag Doll Physics

amcerbu wrote:

Great.  There are a few other tricks like that with vectors; dividing both components by the magnitude and then multiplying by a number gives you a vector with a specific length, etc.

Yes, I definitely know about that one  smile


http://i50.tinypic.com/j0yw0p.jpg

Offline

 

#29 2012-07-16 23:59:13

amcerbu
Scratcher
Registered: 2009-07-21
Posts: 500+

Re: Rag Doll Physics

How's it going so far?  Have you gotten the math you posted above to work?

Offline

 

Board footer