void solve_hanoi(peg *p_my_pegs, int n_discs, int src, int aux, int dst)
{ if(n_discs == 0)
return;
solve_hanoi(p_my_pegs, n_discs - 1, src, dst, aux);
move_disc(p_my_pegs, store_n_discs, src, dst);
show_pegs(stdscr, p_my_pegs, store_n_discs);
check_usr_response(p_my_pegs, store_n_discs);
solve_hanoi(p_my_pegs, n_discs - 1, aux, src, dst);
}
void move_discs(Pin &orig, Pin &dest, int num_discs) {
// Stop case of recorrence
if (num_discs == 1) {
move_disc(orig, dest);
return;
}
// Discover intermediate pin
if (orig.pos() != PIN_A && dest.pos() != PIN_A) {
move_discs(orig, p_a, num_discs - 1);
move_disc(orig, dest);
move_discs(p_a, dest, num_discs - 1);
} else if (orig.pos() != PIN_B && dest.pos() != PIN_B) {
move_discs(orig, p_b, num_discs - 1);
move_disc(orig, dest);
move_discs(p_b, dest, num_discs - 1);
} else {
move_discs(orig, p_c, num_discs - 1);
move_disc(orig, dest);
move_discs(p_c, dest, num_discs - 1);
}
}
static unsigned long
intermomentary_draw (Display *dpy, Window window, void *closure)
{
struct state *st = (struct state *) closure;
int tempx;
if ((st->f->cycles % 10) == 0) {
/* Restart if the window size changes */
XGetWindowAttributes(dpy, window, &st->xgwa);
if (st->f->height != st->xgwa.height || st->f->width != st->xgwa.width) {
st->f->height = st->xgwa.height;
st->f->width = st->xgwa.width;
st->f->visdepth = st->xgwa.depth;
build_img(dpy, window, st->f);
}
}
blank_img(dpy, st->f->off_map, st->xgwa, st->fgc, st->f);
for (tempx = 0; tempx < st->f->num; tempx++) {
move_disc(st->f, tempx);
render_disc(st, st->f->off_map, st->fgc, st->f, tempx);
}
#if 0
XSetFillStyle(dpy, st->copygc, FillTiled);
XSetTile(dpy, st->copygc, st->f->off_map);
XFillRectangle(dpy, window, st->copygc, 0, 0, st->f->width, st->f->height);
#else
if (st->f->off_map != window)
XCopyArea (dpy, st->f->off_map, window, st->copygc, 0, 0,
st->f->width, st->f->height, 0, 0);
#endif
st->f->cycles++;
return st->draw_delay;
}
