If they touch each other change the type of the acid to salt and alkali to water (or the reverse).

@tommig
if(t==PT_ACID)
{
for(nx=-2;nx<3;nx++) <br /> for(ny=-2;ny<3;ny++) <br /> {
if(x+nx>=0 && y+ny>0 && x+nx {
r=pmap[y+ny][x+nx];
if ((r&0xFF)==PT_BASE)
{
parts[i].type=PT_SALT;
parts[r>>8].type=PT_WATR;
}
}
}
}
//Just remove the "/br" bullcrap, dunno how that happened.

@tommig (View Post)
lol, you thought this was really, hard, it's the simplest thing there is! (sorry for laughing at you, but it's amusing, I asked the exact same thing)