int
directory_walk(struct directory *directory,
int (*forEachSong)(struct song *, void *),
int (*forEachDir)(struct directory *, void *),
void *data)
{
struct dirvec *dv = &directory->children;
int err = 0;
size_t j;
if (forEachDir && (err = forEachDir(directory, data)) < 0)
return err;
if (forEachSong) {
err = songvec_for_each(&directory->songs, forEachSong, data);
if (err < 0)
return err;
}
for (j = 0; err >= 0 && j < dv->nr; ++j)
err = directory_walk(dv->base[j], forEachSong,
forEachDir, data);
return err;
}
void Feeler::feelSurroundings(const DirVecMap& dirs)
{
_feelable.clear();
forEachDir(dirs, [&](Direction dir){
char posSym = home()->grid.charAt(pos() + dirs.at(dir));
_feelable.insert(CharDirPair(posSym, dir));
});
}
int Feeler::numberOfSurrounding(Vec2 pos, const DirVecMap& dirs, const CharArr& conditions)
{
int things = 0;
forEachDir(dirs, [&](Direction dir){
for (int i = 0; i < conditions.size(); i++)
{
if (home()->grid.charAt(pos + dirs.at(dir)) == conditions.at(i))
++things;
}
});
return things;
}