X-Git-Url: https://git.sesse.net/?p=ccbs;a=blobdiff_plain;f=bigscreen%2Fgroupscreen.cpp;h=96afeecb3363cd47ac8bec5a210e5064b163f562;hp=64bf7b9f44986072bf806a896dd3e5bfe00092ce;hb=095c175c9d289b584cf4cb6d337fd9c491c0a887;hpb=4f72fc3e551d7c34409760245c9db94a22cafc28 diff --git a/bigscreen/groupscreen.cpp b/bigscreen/groupscreen.cpp index 64bf7b9..96afeec 100644 --- a/bigscreen/groupscreen.cpp +++ b/bigscreen/groupscreen.cpp @@ -6,6 +6,7 @@ #include "fetch_max_score_for_song.h" #include "fetch_max_score_for_player.h" #include "fetch_needs_update.h" +#include "fetch_highscore.h" #include "fonts.h" GroupScreen::GroupScreen(pqxx::connection &conn, unsigned tournament, unsigned round, unsigned parallel) @@ -63,8 +64,8 @@ void GroupScreen::draw(unsigned char *buf) // titles for chosen songs. unsigned width[16], num_scores; unsigned max_num_width = my_draw_text("8888", NULL, 22.0); - unsigned mode, sumwidth; - for (mode = 0; mode < 2; ++mode) { + unsigned sumwidth; + for (unsigned mode = 0; mode < 2; ++mode) { for (unsigned i = 0; i < 16; ++i) width[i] = 0; @@ -151,7 +152,13 @@ void GroupScreen::draw(unsigned char *buf) unsigned this_width = my_draw_text(text, NULL, 22.0); if (j->chosen) { my_draw_text_deferred(td, text, 22.0, x + max_num_width - this_width, y); - my_draw_text_deferred(td, (mode == 0) ? j->song.title : j->song.short_title, 12.0, x + max_num_width + 10, y); + + // draw the long name if we can, otherwise use the short one + if (my_draw_text(j->song.title, NULL, 12.0) > width[col]) { + my_draw_text_deferred(td, j->song.short_title, 12.0, x + max_num_width + 10, y); + } else { + my_draw_text_deferred(td, j->song.title, 12.0, x + max_num_width + 10, y); + } } else { my_draw_text_deferred(td, text, 22.0, x + width[col] / 2 - this_width / 2, y); } @@ -257,8 +264,9 @@ void GroupScreen::draw(unsigned char *buf) * * * High score: by at - * Needs to (lead/win): + * Needs to lead: * Needs to secure qualification: + * Needs to win group: */ /* Find the first player with the fewest songs played. */ @@ -305,7 +313,148 @@ void GroupScreen::draw(unsigned char *buf) } if (next_song != NULL) { - printf("Next: player %u\n", next_player->id); + widestring text = widestring("Next player: ") + next_player->nick; + unsigned this_width = my_draw_text(text, NULL, 24.0); + my_draw_text(text, buf, 24.0, 400 - this_width/2, 420); + + if (next_song->song.id != -1) { + this_width = my_draw_text(next_song->song.title, NULL, 20.0); + my_draw_text(next_song->song.title, buf, 20.0, 400 - 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); + my_draw_text(text, buf, 16.0, 400 - this_width/2, 487); + } + } + + // only show lead/win/qualify for the last song + if (min_played_songs == num_scores - 1) { + /* + * 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. (FIXME: + * do the last one :-) ) + */ + + // find the best score we can get + unsigned max_score_this_song; + if (next_song->song.id != -1) { + // random song, or we know what song the player picked + conn.perform(FetchMaxScoreForSong(tournament, next_song->song.id, &max_score_this_song)); + } else { + conn.perform(FetchMaxScoreForPlayer(tournament, next_player->id, round, &max_score_this_song)); + } + + 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 == next_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 == next_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 tmp; + + for (unsigned i = 0; i < group.players.size(); ++i) { + if (group.players[i].id == next_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 tmp2; + for (unsigned i = 0; i < group.players.size(); ++i) { + if (group.players[i].id == next_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 (next_player->total + max_score_this_song > lead_beat && (lead_beat != win_beat)) { + int lead_need = std::max(lead_beat - next_player->total + 1, 0U); + + text = widestring("Needs to lead: ") + widestring(pqxx::to_string(lead_need)); + this_width = my_draw_text(text, NULL, 18.0); + my_draw_text(text, buf, 18.0, 400 - this_width/2, y); + + y += 30; + } + + if (next_player->total + max_score_this_song > win_beat) { + int win_need = std::max(win_beat - next_player->total + 1, 0U); + + text = widestring("Needs to win: ") + widestring(pqxx::to_string(win_need)); + + this_width = my_draw_text(text, NULL, 18.0); + my_draw_text(text, buf, 18.0, 400 - this_width/2, y); + + y += 30; + } + + if (next_player->total + max_score_this_song > qualify_beat_worst_case && (qualify_beat_worst_case != win_beat)) { + int qual_need = std::max(qualify_beat_worst_case - next_player->total + 1, 0U); + + 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); + my_draw_text(text, buf, 18.0, 400 - this_width/2, y); + + y += 30; + } + } } valid = true;