+ if (this_songs_played != num_songs_played)
+ continue;
+
+ if (i->scores[song_num].score == -1) {
+ other_player = &(*i);
+ break;
+ }
+ }
+
+ // If we didn't find another player, just draw the one we have as usual.
+ if (other_player == NULL) {
+ draw_next_up_player(buf, group, *next_player, *next_song, false,
+ song_scores, player_scores, max_score, min_score);
+ return;
+ }
+
+ // OK, we have two players. Draw their nicks and the scores
+ widestring text = widestring("Next players: ") + next_player->nick + widestring(" and ") + other_player->nick;
+ unsigned this_width = my_draw_text(text, NULL, 24.0, "nextsonginfo");
+ my_draw_text(text, buf, 24.0, "nextsonginfo", (LOGICAL_SCREEN_WIDTH/2) - this_width/2, 420);
+
+ if (next_song->song.id != -1) {
+ this_width = my_draw_text(next_song->song.title, NULL, 20.0, "nextsongtitle");
+ my_draw_text(next_song->song.title, buf, 20.0, "nextsonginfo", (LOGICAL_SCREEN_WIDTH/2) - this_width/2, 457);
+
+ Highscore hs;
+ conn.perform(FetchHighscore(next_song->song.id, &hs));
+
+ if (hs.score != -1) {
+ text = widestring("High score: ") + widestring(pqxx::to_string(hs.score)) +
+ widestring(", by ") + hs.nick + widestring(" in ") + hs.tournament_name;
+ this_width = my_draw_text(text, NULL, 16.0, "nextsonginfo");
+ my_draw_text(text, buf, 16.0, "nextsonginfo", (LOGICAL_SCREEN_WIDTH/2) - this_width/2, 487);
+ }
+ }
+}
+
+void GroupScreen::draw_next_up_player(unsigned char *buf, const Group &group, const Player &player, const Score &song, bool last_song,
+ std::map<unsigned, unsigned> &song_scores, std::map<unsigned, unsigned> &player_scores,
+ const std::vector<unsigned> &max_score, const std::vector<unsigned> &min_score)
+{
+ widestring text = widestring("Next player: ") + player.nick;
+ unsigned this_width = my_draw_text(text, NULL, 24.0, "nextsonginfo");
+ my_draw_text(text, buf, 24.0, "nextsonginfo", (LOGICAL_SCREEN_WIDTH/2) - this_width/2, 420);
+
+ if (song.song.id != -1) {
+ this_width = my_draw_text(song.song.title, NULL, 20.0, "nextsonginfo");
+ my_draw_text(song.song.title, buf, 20.0, "nextsonginfo", (LOGICAL_SCREEN_WIDTH/2) - this_width/2, 457);
+
+ Highscore hs;
+ conn.perform(FetchHighscore(song.song.id, &hs));
+
+ if (hs.score != -1) {
+ text = widestring("High score: ") + widestring(pqxx::to_string(hs.score)) +
+ widestring(", by ") + hs.nick + widestring(" in ") + hs.tournament_name;
+ this_width = my_draw_text(text, NULL, 16.0, "nextsonginfo");
+ my_draw_text(text, buf, 16.0, "nextsonginfo", (LOGICAL_SCREEN_WIDTH/2) - this_width/2, 487);
+ }
+ }
+
+ // only show lead/win/qualify for the last song
+ if (last_song) {
+ /*
+ * Find out how much we need to lead, how much we need to be guaranteed
+ * to win the group, and how much we need to secure qualification.
+ */
+
+ // find the best score we can get
+ unsigned max_score_this_song;
+ if (song.song.id != -1) {
+ // random song, or we know what song the player picked
+ max_score_this_song = song_scores[song.song.id];
+ } else {
+ max_score_this_song = player_scores[player.id];
+ }
+
+ unsigned y = 520;
+
+ // see what score this player must beat to lead
+ unsigned lead_beat = 0, win_beat = 0;
+ for (unsigned i = 0; i < group.players.size(); ++i) {
+ if (group.players[i].id == player.id)
+ continue;
+
+ lead_beat = std::max(lead_beat, group.players[i].total);
+ }
+
+ // find the best max score among the others
+ for (unsigned i = 0; i < group.players.size(); ++i) {
+ if (group.players[i].id == player.id)
+ continue;
+
+ win_beat = std::max(win_beat, max_score[i]);
+ }
+
+ /*
+ * There's a somewhat subtle point here. Normally, what a player would be interested in
+ * with regard to qualification would be a set of three values:
+ *
+ * 1. How much is the absolute minimum required to qualify, given that all others
+ * fail?
+ * 2. How much will give a reasonable chance of qualifying, given the expected performance
+ * of all the others?
+ * 3. How much will be enough to secure qualification, no matter what?
+ *
+ * Given perfect guessing, #2 would be "how much is needed to qualify"; however, it is
+ * completely impossible to give an exact value for that, and we're not into the guessing
+ * games. :-) #1 is often so low it's completely unrealistic (ie. far enough from #2 that
+ * it's not interesting), but #3, the most conservative estimate, is often a good measure.
+ * #3 is "how much is needed to _secure_ qualification", and that is usually what we
+ * print out when it's possible.
+ *
+ * However, in a few situations, #1 and #3 will be the exact same value, from which it
+ * follows (from the squeeze law, or just common sense :-) ) that #2 will be the same
+ * value as #1 and #3. (This usually happens near or at the end of a group.) In that
+ * case, we know the value we seek (ie. "how much is needed to qualify"), so we drop
+ * the word "secure" and just print it as-is.
+ *
+ * To find #1 and #3, we sort and pick out the values we need to beat in the best and
+ * the worst case.
+ */
+ int qualify_beat_worst_case = -1, qualify_beat_best_case = -1;
+
+ if (group.num_qualifying > 0) {
+ std::vector<unsigned> tmp;
+
+ for (unsigned i = 0; i < group.players.size(); ++i) {
+ if (group.players[i].id == player.id)
+ continue;
+ tmp.push_back(max_score[i]);
+ }
+ std::sort(tmp.begin(), tmp.end());
+ qualify_beat_worst_case = tmp[tmp.size() - group.num_qualifying];
+
+ std::vector<unsigned> tmp2;
+ for (unsigned i = 0; i < group.players.size(); ++i) {
+ if (group.players[i].id == player.id)
+ continue;
+ tmp2.push_back(min_score[i]);
+ }
+
+ std::sort(tmp2.begin(), tmp2.end());
+ qualify_beat_best_case = tmp2[tmp2.size() - group.num_qualifying];
+ }
+
+ // print out the lines we can attain
+ if (player.total + max_score_this_song > lead_beat && (lead_beat != win_beat)) {
+ int lead_need = std::max(lead_beat - player.total + 1, 0U);
+
+ if (lead_need > 1) {
+ text = widestring("Needs to lead: ") + widestring(pqxx::to_string(lead_need));
+ this_width = my_draw_text(text, NULL, 18.0, "need");
+ my_draw_text(text, buf, 18.0, "need", (LOGICAL_SCREEN_WIDTH/2) - this_width/2, y);
+
+ y += 30;
+ }
+ }
+
+ if (player.total + max_score_this_song > win_beat) {
+ int win_need = std::max(win_beat - player.total + 1, 0U);
+
+ if (win_need > 0) {
+ text = widestring("Needs to win: ") + widestring(pqxx::to_string(win_need));
+
+ this_width = my_draw_text(text, NULL, 18.0, "need");
+ my_draw_text(text, buf, 18.0, "need", (LOGICAL_SCREEN_WIDTH/2) - this_width/2, y);
+
+ y += 30;
+ }
+ }
+
+ if (group.num_qualifying > 0 &&
+ group.num_qualifying != group.players.size() &&
+ player.total + max_score_this_song > unsigned(qualify_beat_worst_case) &&
+ (unsigned(qualify_beat_worst_case) != win_beat)) {
+ int qual_need = std::max(qualify_beat_worst_case - player.total + 1, 0U);
+
+ if (qual_need > 0) {
+ if (qualify_beat_worst_case == qualify_beat_best_case) {
+ text = widestring("Needs to qualify: ") + widestring(pqxx::to_string(qual_need));
+ } else {
+ text = widestring("Needs to secure qualification: ") + widestring(pqxx::to_string(qual_need));
+ }
+
+ this_width = my_draw_text(text, NULL, 18.0, "need");
+ my_draw_text(text, buf, 18.0, "need", (LOGICAL_SCREEN_WIDTH/2) - this_width/2, y);
+
+ y += 30;
+ }