A new free 2D Game Development Platform: BennuGD

[Miriam Ruiz]

2009/11/18 Jon Ciesla <limb at jcomserv.net>:
> Miriam Ruiz wrote:
>>
>> 2009/11/18 Oscar Torrente <q2dg at yahoo.es <mailto:q2dg at yahoo.es>>
>>
>>    Hello
>>
>>    I´m writing this email to introduce you a very interesting GPL 2D
>>    videogame programming language, called BennuGD
>>    (http://www.bennugd.org).
>>
>>
>> It is really a nice development platform, it conceptually derives from
>> Fenix, which is also in itself a free clone of DIV Games Studio. The only
>> problem I see with Bennu for the moment is that the direct conversions
>> between integers and pointers in the code do not work at all in 64 bits,
>> AFAIK.
>>
>> Greetings,
>> Miry
>>
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>>
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>
> I saw that there's no 64-bit version, would this fact preclude running the
> 32-bit version on 64-bit platforms?

AFAIK, it can be compiled with -m32, but not with -m64, that's the
reason I haven't packaged it for Debian yet, although I've been
following the project since its birth. Fenix also had, and already
has, that problem.

Maybe it could be fixed with  intptr_t and uintptr_t [1] (Linux
equivalent for Window's UINT_PTR and INT_PTR [2]), but as that numbers
are part of the virtual machine code, that would make code not
portable between architectures (I seriously doubt that it is now, even
in 32 bits with different endianess, but I haven't checked so I might
be wrong).

The proper way to fix it would probably be to have a dictionary (or
something EQUIVALENT), and put the key to the dictionary in the id and
the pointer in the value, thus avoiding having the actual pointer in
the 32bit id [3]

Whatever the solution might be, it seems to imply a hard work, so for
the moment I would only consider using it in 32 bits arches.

Any better ideas?

Greetings,
Miry

[1] http://stackoverflow.com/questions/153065/converting-a-pointer-into-an-integer
[2] http://msdn.microsoft.com/en-us/library/aa384242(VS.85).aspx
[3] http://stackoverflow.com/questions/1186766/resolving-cast-to-pointer-from-integer-of-different-size-error-in-64-bit-convers