Re: Possible bug...

["John E. Davis" <davis>]

Richard van Zon <rvanzon@xxxxxxxxxxxx> wrote:
>I dont know if bug reports are supposed to be given here.
>And maybe it's not a bug, but I dont see anything I do wrong...
>I have S-Lang embedded in a C-Program, that calls onKeyDown()
>with a given key...

My suspicion is that your C program has trashed some memory somewhere.
I assume that you are using the latest version of slang (1.4.4).

>define onKeyDown(key)
>{
>  if (key==276) { yvel=-1.0;y--; }    // this one works fine
>  if (key==275) { yvel=-1.0;y--; }    // yvel=-1.0 is not valid here ?!
>  if (key==273) { xvel=1.0;x--; }      // this one works fine
>  if (key==274) { xvel=-1.0;x++; }   // this one works fine
>}

How are x, xvel, y, and yvel defined?

Thanks,
--John