[Openmcl-devel] Clozure CL Interface Databases/Open Agent Engine

Brent Fulgham bfulg at pacbell.net
Tue Oct 30 23:21:12 PDT 2007

I have uploaded a couple of things that might be interesting to some  
users, and I could sure use the raw Lisp skills roaring onto this list  

I have published the source code of my conversion of Alexander  
Repenning's "Open Agent Engine" logic to work under OpenMCL (now  
Clozure CL) under 64-bit Intel Leopard.  I can go into the various  
reasons for the updates if anyone cares, but basically the goal was to  
move the logic out of the QuickDraw/Carbon era and into Apple's  
current development arc.

To use the sources, you will need a few FFI databases that do not  
currently ship with Clozure CL (but see bug #51 in Trac [http://trac.clozure.com/openmcl/ticket/51#preview 
]), namely links for the ApplicationServices framework and more  
importantly the Quartz framework.

Everything can be downloaded from "http://homepage.mac.com/bfulgham/FileSharing2.html 
".  You will need to un-bzip2 and un-tar the FFI database into "cd / 
Applications/Clozure\ CL\ \(Intel-64\ Leopard\).app/Contents/ 
Resources/" (they should show up as folders underneath the darwin-x86- 

Once this is done, if you load the file "Open_Agent_Engine/Load OpenGL  
for MCL.lisp" you should be able to invoke:

? (defvar *W* (make-instance 'ad3d::opengl-window))

and get something like:

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... you should be able to tilt/yaw, etc.

There are more exciting examples in the "Examples" folder (the  
inevitable "Gears" demo is there and works quite well.)

I can't seem to get the Texture loading logic to work properly in CCL  
(though my locally-built OpenMCL works fine), so I suspect the problem  
has to do with CCL finding the correct path to the textures (see http://lwat.blogspot.com 
  for various examples).

I'd love to get some pointers from the Lisp intelligencia, as there  
are some clear problems with deadlocking when running animations, etc.



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