5 #include "resolution.h"
6 #include "groupscreen.h"
7 #include "fetch_group.h"
8 #include "fetch_max_score_for_songs.h"
9 #include "fetch_max_score_for_players.h"
10 #include "fetch_needs_update.h"
11 #include "fetch_highscore.h"
14 GroupScreen::GroupScreen(pqxx::connection &conn, unsigned tournament, unsigned round, unsigned parallel, unsigned machine, unsigned num_machines, unsigned players_per_machine)
15 : tournament(tournament), round(round), parallel(parallel), machine(machine), num_machines(num_machines), players_per_machine(players_per_machine), scores_changed(conn, "scores"), conn(conn), valid(false)
19 GroupScreen::~GroupScreen()
23 bool GroupScreen::check_invalidated()
27 if (!scores_changed.get_flag())
31 conn.perform(FetchNeedsUpdate(last_updated, tournament, round, parallel, &needs_update));
34 scores_changed.reset_flag();
39 unsigned GroupScreen::get_show_players(const Group &group)
41 unsigned num_players_this_machine = (group.players.size() + num_machines - machine - 1) / num_machines;
42 return std::min(num_players_this_machine, 9U);
45 void GroupScreen::draw_main_heading(std::vector<TextDefer> &td)
48 if (num_machines == 1) {
50 std::sprintf(heading, "Round %u", round);
52 std::sprintf(heading, "Round %u, Group %u", round, parallel);
56 std::sprintf(heading, "Round %u, Machine %u", round, machine + 1);
58 std::sprintf(heading, "Round %u, Group %u, Machine %u", round, parallel, machine + 1);
62 unsigned width = my_draw_text(heading, NULL, 40.0);
63 my_draw_text_deferred(td, heading, 40.0, LOGICAL_SCREEN_WIDTH/2 - width/2, 60);
66 // make column headings from the first player's songs
67 void GroupScreen::draw_column_headings(std::vector<TextDefer> &td, const Group &group, const std::vector<unsigned> &colwidth)
69 unsigned num_scores = group.players[0].scores.size();
72 unsigned x = 40 + colwidth[0];
73 for (std::vector<Score>::const_iterator i = group.players[0].scores.begin(); i != group.players[0].scores.end(); ++i, ++col) {
75 unsigned this_width = my_draw_text(i->song.short_title, NULL, 12.0);
76 my_draw_text_deferred(td, i->song.short_title, 12.0, x + colwidth[col] / 2 - this_width / 2, 100);
78 x += colwidth[col] + 20;
81 my_draw_text_deferred(td, "Total", 12.0, x + colwidth[num_scores + 1] / 2 - my_draw_text("Total", NULL, 12.0) / 2, 100);
82 x += colwidth[num_scores + 1] + 20;
83 my_draw_text_deferred(td, "Rank", 12.0, x + colwidth[num_scores + 2] / 2 - my_draw_text("Rank", NULL, 12.0) / 2, 100);
86 // show all the players and the scores
87 void GroupScreen::draw_scores(std::vector<TextDefer> &td, const Group &group, const std::vector<unsigned> &colwidth)
89 unsigned max_num_width = my_draw_text("8888", NULL, 22.0);
90 unsigned num_scores = group.players[0].scores.size();
91 unsigned show_players = get_show_players(group);
92 unsigned y = (show_players <= 7) ? 140 : (140 - (show_players - 7) * 5);
94 unsigned row = 0, m = 0, x;
95 for (std::vector<Player>::const_iterator i = group.players.begin(); i != group.players.end() && row < 9; ++i) {
96 if (m++ % num_machines != machine)
99 my_draw_text_deferred(td, i->nick, 18.0, 20, y);
101 x = 40 + colwidth[0];
104 for (std::vector<Score>::const_iterator j = i->scores.begin(); j != i->scores.end(); ++j, ++col) {
106 if (j->score != -1) {
107 std::sprintf(text, "%u", j->score);
110 unsigned this_width = my_draw_text(text, NULL, 22.0);
112 my_draw_text_deferred(td, text, 22.0, x + max_num_width - this_width, y);
114 // draw the long name if we can, otherwise use the short one
115 if (my_draw_text(j->song.title, NULL, 12.0) > (colwidth[col] - 10 - max_num_width)) {
116 my_draw_text_deferred(td, j->song.short_title, 12.0, x + max_num_width + 10, y);
118 my_draw_text_deferred(td, j->song.title, 12.0, x + max_num_width + 10, y);
121 my_draw_text_deferred(td, text, 22.0, x + colwidth[col] / 2 - this_width / 2, y);
123 x += colwidth[col] + 20;
129 std::sprintf(text, "%u", i->total);
131 unsigned this_width = my_draw_text(text, NULL, 22.0);
132 my_draw_text_deferred(td, text, 22.0, x + colwidth[num_scores + 1] / 2 - this_width / 2, y);
133 x += colwidth[num_scores + 1] + 20;
136 if (show_players > 7)
137 y += 40 - (show_players - 7) * 4;
145 * Find out how wide each column has to be. First try unlimited width (ie.
146 * long titles for everything); if that gets too long, try again with short
147 * titles for chosen songs.
149 void GroupScreen::find_column_widths(const Group &group, std::vector<unsigned> &colwidth)
152 unsigned max_num_width = my_draw_text("8888", NULL, 22.0);
153 unsigned sumcolwidth;
155 for (unsigned mode = 0; mode < 2; ++mode) {
156 for (std::vector<Player>::const_iterator i = group.players.begin(); i != group.players.end(); ++i) {
159 if (colwidth.size() == 0)
160 colwidth.push_back(0);
162 colwidth[0] = std::max(colwidth[0], my_draw_text(i->nick, NULL, 18.0));
164 for (std::vector<Score>::const_iterator j = i->scores.begin(); j != i->scores.end(); ++j, ++col) {
165 if (colwidth.size() < col+1)
166 colwidth.push_back(0);
169 colwidth[col] = std::max(colwidth[col], my_draw_text((mode == 0) ? j->song.title : j->song.short_title, NULL, 12.0) +
172 colwidth[col] = std::max(colwidth[col], my_draw_text(j->song.short_title, NULL, 12.0));
173 colwidth[col] = std::max(colwidth[col], max_num_width);
178 num_scores = group.players[0].scores.size();
180 if (colwidth.size() < num_scores + 2) {
181 colwidth.push_back(0);
182 colwidth.push_back(0);
185 colwidth[num_scores + 1] = std::max(my_draw_text("Total", NULL, 12.0), max_num_width);
186 colwidth[num_scores + 2] = my_draw_text("Rank", NULL, 12.0);
188 // if we're at long titles and that works, don't try the short ones
191 for (unsigned i = 0; i <= num_scores + 2; ++i)
192 sumcolwidth += colwidth[i] + 20;
194 if (sumcolwidth < 780)
199 * If we have space to go, distribute as much as we can to the chosen song column, so we won't have
200 * total and rank jumping around.
202 if (sumcolwidth < 780) {
203 int first_chosen_col = -1;
206 for (std::vector<Score>::const_iterator i = group.players[0].scores.begin(); i != group.players[0].scores.end(); ++i, ++col) {
208 first_chosen_col = col;
213 if (first_chosen_col != -1) {
214 colwidth[first_chosen_col] += 780 - sumcolwidth;
219 // some refactoring done, more should be
220 void GroupScreen::draw(unsigned char *buf, unsigned width, unsigned height)
222 std::vector<TextDefer> td;
224 scores_changed.reset_flag();
225 set_screen_size(width, height);
228 * We'll probably need some values from here later on (although not all), just fetch them
229 * all while we're at it.
231 std::map<unsigned, unsigned> song_scores, player_scores;
232 conn.perform(FetchMaxScoreForSongs(tournament, &song_scores));
233 conn.perform(FetchMaxScoreForPlayers(tournament, round, &player_scores));
236 conn.perform(FetchGroup(tournament, round, parallel, &group));
237 gettimeofday(&last_updated, NULL);
239 memset(buf, 0, width * height * 4);
241 std::vector<unsigned> colwidth;
243 draw_main_heading(td);
244 find_column_widths(group, colwidth);
245 draw_column_headings(td, group, colwidth);
246 draw_scores(td, group, colwidth);
248 unsigned num_scores = group.players[0].scores.size();
251 * Approximate (but probably working quite well in practice) heuristic
252 * for finding the min and max rank of a player works as follows:
254 * First of all, find out, for each player in the group, what the
255 * maximum remaining score possibly can be (the minimum score is of
256 * course identical to the player's current total). For a random song,
257 * this is of course 1000 * (maximum feet rating) (but of course, that
258 * depends on whether we can play single or double! for now, assume
259 * double is okay, but this logic will be deferred to FetchMaxScore
260 * anyhow); for a random song, we simply pick the highest-ranking song
261 * we can find, EXCEPT those the player has chosen earlier AND the
262 * random songs this round, AND all random songs from elimination rounds
263 * (ie. rounds with only one group). (Phew!) This doesn't solve problems
264 * we'd face with more than one chosen song, but it should be good enough.
266 * After we've found the max and min scores for all players, it's a simple
267 * matter of sorting; the best attainable rank for player X is obtained if
268 * X gets max score and all others get min score, the worst attainable rank
269 * is obtained if X gets min score and all others get max score.
271 std::vector<unsigned> max_score, min_score;
272 for (std::vector<Player>::const_iterator i = group.players.begin(); i != group.players.end(); ++i) {
273 unsigned min_score_tp = 0, max_score_tp = 0;
274 for (std::vector<Score>::const_iterator j = i->scores.begin(); j != i->scores.end(); ++j) {
275 if (j->score != -1) {
277 min_score_tp += j->score;
278 max_score_tp += j->score;
280 unsigned max_score_this_song;
281 if (j->song.id != -1) {
282 // random song, or we know what song the player picked
283 max_score_this_song = song_scores[j->song.id];
285 max_score_this_song = player_scores[i->id];
287 max_score_tp += max_score_this_song;
290 max_score.push_back(max_score_tp);
291 min_score.push_back(min_score_tp);
294 // now finally find min and max rank, and draw it all
295 unsigned show_players = get_show_players(group);
296 unsigned y = (show_players <= 7) ? 140 : (140 - (show_players - 7) * 5);
297 for (unsigned i = 0; i < group.players.size() && (i/num_machines) < show_players; ++i) {
298 unsigned best_rank = 1, worst_rank = 1;
299 for (unsigned j = 0; j < group.players.size(); ++j) {
303 if (max_score[i] < min_score[j])
305 if (min_score[i] <= max_score[j])
310 if (best_rank == worst_rank)
311 std::sprintf(text, "%u", best_rank);
313 std::sprintf(text, "%u-%u", best_rank, worst_rank);
315 if (i % num_machines != machine)
318 // find out where to place this
319 unsigned x = 40 + colwidth[0];
320 for (unsigned j = 1; j <= num_scores + 1; ++j)
321 x += colwidth[j] + 20;
323 unsigned this_width = my_draw_text(text, NULL, 22.0);
324 my_draw_text_deferred(td, text, 22.0, x + colwidth[num_scores + 2] / 2 - this_width / 2, y);
326 if (show_players > 7)
327 y += 40 - (show_players - 7) * 4;
333 * Next up (at the bottom) is "who's playing, what will he/she be playing, and
334 * optionally, how much to lead/win and how much to secure qualification" (the
335 * last one only in the final round). We assume playing is done in a modified
336 * zigzag; all the random songs are played first in zigzag/wrapping order (player
337 * 1 song 1, player 2 song 2, player 3 song 3, player 1 song 2, player 2 song 3,
338 * player 3 song 1, etc... assuming three songs and three players) and then all
339 * the chosen songs are played (we assume only one chosen song).
341 * The lines are as follows:
345 * High score: <hs> by <hsplayer> at <hsevent>
346 * Needs to lead: <leadscore>
347 * Needs to secure qualification: <qualscore>
348 * Needs to win group: <winscore>
351 /* Find the first player with the fewest songs played and part of this machine. */
352 unsigned min_played_songs = 9999, num_random_songs = 0;
353 Player *next_player = NULL;
355 for (std::vector<Player>::iterator i = group.players.begin(); i != group.players.end(); ++i) {
356 unsigned this_played = 0, this_random_songs = 0;
357 for (std::vector<Score>::const_iterator j = i->scores.begin(); j != i->scores.end(); ++j) {
364 if ((m++ % num_machines == machine) && this_played < min_played_songs) {
365 min_played_songs = this_played;
367 num_random_songs = this_random_songs; // should be equal for all
371 /* Find out what song this player is supposed to play next; try random songs first */
372 Score *next_song = NULL;
374 for (unsigned i = 0; i < num_random_songs; ++i) {
375 unsigned j = (i + next_player->position - 1) % num_random_songs;
376 if (next_player->scores[j].score == -1) {
377 next_song = &(next_player->scores[j]);
382 // then all songs, if that didn't work out (slightly icky, but hey)
383 if (next_song == NULL) {
384 for (unsigned i = 0; i < num_scores; ++i) {
385 unsigned j = (i + next_player->position) % num_scores;
386 if (next_player->scores[j].score == -1) {
387 next_song = &(next_player->scores[j]);
393 if (next_song != NULL) {
394 widestring text = widestring("Next player: ") + next_player->nick;
395 unsigned this_width = my_draw_text(text, NULL, 24.0);
396 my_draw_text(text, buf, 24.0, (LOGICAL_SCREEN_WIDTH/2) - this_width/2, 420);
398 if (next_song->song.id != -1) {
399 this_width = my_draw_text(next_song->song.title, NULL, 20.0);
400 my_draw_text(next_song->song.title, buf, 20.0, (LOGICAL_SCREEN_WIDTH/2) - this_width/2, 457);
403 conn.perform(FetchHighscore(next_song->song.id, &hs));
405 if (hs.score != -1) {
406 text = widestring("High score: ") + widestring(pqxx::to_string(hs.score)) +
407 widestring(", by ") + hs.nick + widestring(" in ") + hs.tournament_name;
408 this_width = my_draw_text(text, NULL, 16.0);
409 my_draw_text(text, buf, 16.0, (LOGICAL_SCREEN_WIDTH/2) - this_width/2, 487);
413 // only show lead/win/qualify for the last song
414 if (min_played_songs == num_scores - 1) {
416 * Find out how much we need to lead, how much we need to be guaranteed
417 * to win the group, and how much we need to secure qualification. (FIXME:
418 * do the last one :-) )
421 // find the best score we can get
422 unsigned max_score_this_song;
423 if (next_song->song.id != -1) {
424 // random song, or we know what song the player picked
425 max_score_this_song = song_scores[next_song->song.id];
427 max_score_this_song = player_scores[next_player->id];
432 // see what score this player must beat to lead
433 unsigned lead_beat = 0, win_beat = 0;
434 for (unsigned i = 0; i < group.players.size(); ++i) {
435 if (group.players[i].id == next_player->id)
438 lead_beat = std::max(lead_beat, group.players[i].total);
441 // find the best max score among the others
442 for (unsigned i = 0; i < group.players.size(); ++i) {
443 if (group.players[i].id == next_player->id)
446 win_beat = std::max(win_beat, max_score[i]);
450 * There's a somewhat subtle point here. Normally, what a player would be interested in
451 * with regard to qualification would be a set of three values:
453 * 1. How much is the absolute minimum required to qualify, given that all others
455 * 2. How much will give a reasonable chance of qualifying, given the expected performance
457 * 3. How much will be enough to secure qualification, no matter what?
459 * Given perfect guessing, #2 would be "how much is needed to qualify"; however, it is
460 * completely impossible to give an exact value for that, and we're not into the guessing
461 * games. :-) #1 is often so low it's completely unrealistic (ie. far enough from #2 that
462 * it's not interesting), but #3, the most conservative estimate, is often a good measure.
463 * #3 is "how much is needed to _secure_ qualification", and that is usually what we
464 * print out when it's possible.
466 * However, in a few situations, #1 and #3 will be the exact same value, from which it
467 * follows (from the squeeze law, or just common sense :-) ) that #2 will be the same
468 * value as #1 and #3. (This usually happens near or at the end of a group.) In that
469 * case, we know the value we seek (ie. "how much is needed to qualify"), so we drop
470 * the word "secure" and just print it as-is.
472 * To find #1 and #3, we sort and pick out the values we need to beat in the best and
475 int qualify_beat_worst_case = -1, qualify_beat_best_case = -1;
477 if (group.num_qualifying > 0) {
478 std::vector<unsigned> tmp;
480 for (unsigned i = 0; i < group.players.size(); ++i) {
481 if (group.players[i].id == next_player->id)
483 tmp.push_back(max_score[i]);
485 std::sort(tmp.begin(), tmp.end());
486 qualify_beat_worst_case = tmp[tmp.size() - group.num_qualifying];
488 std::vector<unsigned> tmp2;
489 for (unsigned i = 0; i < group.players.size(); ++i) {
490 if (group.players[i].id == next_player->id)
492 tmp2.push_back(min_score[i]);
495 std::sort(tmp2.begin(), tmp2.end());
496 qualify_beat_best_case = tmp2[tmp2.size() - group.num_qualifying];
499 // print out the lines we can attain
500 if (next_player->total + max_score_this_song > lead_beat && (lead_beat != win_beat)) {
501 int lead_need = std::max(lead_beat - next_player->total + 1, 0U);
504 text = widestring("Needs to lead: ") + widestring(pqxx::to_string(lead_need));
505 this_width = my_draw_text(text, NULL, 18.0);
506 my_draw_text(text, buf, 18.0, (LOGICAL_SCREEN_WIDTH/2) - this_width/2, y);
512 if (next_player->total + max_score_this_song > win_beat) {
513 int win_need = std::max(win_beat - next_player->total + 1, 0U);
516 text = widestring("Needs to win: ") + widestring(pqxx::to_string(win_need));
518 this_width = my_draw_text(text, NULL, 18.0);
519 my_draw_text(text, buf, 18.0, (LOGICAL_SCREEN_WIDTH/2) - this_width/2, y);
525 if (group.num_qualifying > 0 &&
526 next_player->total + max_score_this_song > unsigned(qualify_beat_worst_case) &&
527 (unsigned(qualify_beat_worst_case) != win_beat)) {
528 int qual_need = std::max(qualify_beat_worst_case - next_player->total + 1, 0U);
531 if (qualify_beat_worst_case == qualify_beat_best_case) {
532 text = widestring("Needs to qualify: ") + widestring(pqxx::to_string(qual_need));
534 text = widestring("Needs to secure qualification: ") + widestring(pqxx::to_string(qual_need));
537 this_width = my_draw_text(text, NULL, 18.0);
538 my_draw_text(text, buf, 18.0, (LOGICAL_SCREEN_WIDTH/2) - this_width/2, y);
547 draw_all_deferred_text(buf, td, last_text);
551 int GroupScreen::get_priority()