>
> Hi,
> I am wondering if you could shed some light onto a tetris game programming
> problem that I am experiencing.
>
> Using svgalib I have the following program loop:-
>
> drawScreen();
> int count = 0;
>
> if(count > 19){
> shiftTetrisBlocks();
> count = 0;
> }
>
> for(;;){
> drawScreen();
> lookForUserEvents();
> usleep(50000);
> count++;
> }
>
> Just wondering if you could see a problem in this logic. The keys respond as
> they should but I cannot get program to draw stuff onto the screen. Any
> ideas? if the logic looks ok, then how can i debug svga programs?
>
> thanks,
>
> Chris Gottlieb
>
should this be:
drawScreen();
int count = 0;
for(;;){
if(count > 19){
shiftTetrisBlocks();
count = 0;
}
drawScreen();
lookForUserEvents();
usleep(50000);
count++;
}
Other people on this mailing list have already discussed how to debug
svgalib programs using gdb. Try searching the mailing list archive at
http://www.svgalib.org (in particular look for a msg from russell.marks
with the subject 'Re: debugging svgalib programs')
Personally I send stuff to a file which I can then look at from another
virtual console or even another machine.
Regards
Sergio
