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Am 17.08.2007 um 22:56 schrieb Robin Lee Powell:
Hi,
On Fri, Aug 17, 2007 at 10:34:46PM +0200, Bastian Müller wrote:
Finally, I tried to do the actual call.
First, I tried:
(ode-space-collide space (null-pointer) foobar)
and during the simulation I got an
Error: bad argument count - received -2 but expected 3: error in
error
graphics.scm: 76 ode-space-collide <--
So you'll want #f instead of (null-pointer), and you'll want
(location foobar), and foobar needs to be define-external *in the
file you set the callback from*.
The "bad argument count" thing is exactly what happens when you
don't use (location func) for setting up a callback; it happened to
me a bunch whilst making cluck.
so, I put the define-external in graphics.scm, where I do now:
(ode-space-collide space #f (location foobar))
and throws again:
Error: (location) bad argument type - locative can not refer to
objects of this type: #<procedure (foobar data81 geom182 geom283)>
I'm using chicken 2.6, btw.
Thanks for your quick response
- --
Bastian Müller - http://turbolent.com/
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