Thanks for releasing the source!

I had to change the code in a few places to make it compile, but otherwise it worked flawlessly under Linux.

EDIT: Here are the two changes (well there was the third one, but that is to define the platform, so that was normal).

I had to expand these conditionals, because the left side could not be resolved by gcc.

On line 2785 in juego.c

(dato==D_X?movs[f].m0:movs[f].m1)=(dif<0?-1:1);

I changed it to:

if(dato==D_X)
   movs[f].m0 = (dif<0?-1:1);
else
   movs[f].m1 = (dif<0?-1:1);

and on line 2812 in juego.c

(dato==D_X?movs[f].m0:movs[f].m1)=dif;

changed to

if(dato==D_X)
   movs[f].m0 = dif;
else
   movs[f].m1;

I don't know why linux didn't work as he's using mingw, which should be the same. Just remember though (unless he's forgotten!) that the encryption code for generating high-score entries is deleted from the source code.

Unfortunately it will always be that case for source code releases/conversions supplying source code as we don't want our algorithm know.

My gcc version is 4.2.3, if that helps. I did compile the thing in Code::Blocks, but even doing something like 'gcc test.c' with test.c being:

int main()
{
    int a,b;
    (1 ? a : b) = 1;
    return 0;
}

still throws the error, so it isn't anything special that C::B does.

AFAIK ternary operator can be used for assining value or comparing. So determining which value should be assigned through ternary operator is quite weird and I wonder why it worked.

That depends on C standard, there's difference between ANSI C and C99. I can't recall which one is it, but one allows C++ like constructs, for example

for (int i = 0; i < 10; i++)
  printf("i = %d", i);

while the other isn't. I think that the benevolent one is ANSI C but I'm not sure about that.

Vanneto: nope, this is what compiler threw at me when I compiled the code above (for cycle):
error: ‘for’ loop initial declaration used outside C99 mode

Oh well, then it's the ANSI C that forbids it.

Hi there, about the lvalue stuff, I thought it was standard C. If it's not, of it it depends on the version, I'll just try to avoid that on my future games
And about the license, I never bothered much with those things. I just made the code public just in case someone is courious enough and wants to take a look. Everything else, I just don't care