Re: [pygame] The Giant - 'cool project I'm working on now' - thread.

["Thiago Chaves" <shundread@xxxxxxxxx>]

Designing caracters for a metroidvania-style game for gamejam. Due to
the late start, only a demo will be delivered in time. =(

-Thiago

On Sat, Aug 9, 2008 at 10:59 AM, DR0ID <dr0id@xxxxxxxxxx> wrote:
> Hi
>
> here is a good tutorial about 2d collision (probably you already know):
> http://www.harveycartel.org/metanet/tutorials.html
>
> The most important thing to understand is the 'Separating axis theorem' (as
> you probably already know it and you can use it for 3D too). It only handles
> convex polygons. For concave polygons it is a bit more complex (I haven't
> done such, so I have no idea how to handle them, but the internet sure has
> an answer).
>
> I used the same techniques for my pyweek entry Murmel and it worked quite
> well (it is not perfect because of the crappy collision response and it has
> the bullet-paper problem).
>
> ~DR0ID
>
>
> Michael George schrieb:
>>
>> It's still somewhat on the back burner, but I've been working on a library
>> to allow you to drag and drop irregularly shaped objects (esp. circles and
>> polygons) while preventing interpenetration.  It's a surprisingly hard
>> problem and I'm reading a lot of computational geometry papers to find an
>> algorithm to solve it.
>>
>> This is a subproject/distraction from my game, PEN (puzzles from the
>> engineer's notebook) which was loosely inspired by the incredible machine:
>> http://sourceforge.net/projects/pen/.  You can see a buggy, circles-only
>> version of the dragging problem in the code there if you're curious.  I'm
>> hoping a library would be something useful to other game designers.  What do
>> you think?
>>
>> --Mike
>>
>