]> git.sesse.net Git - ccbs/blobdiff - bigscreen/groupscreen.cpp
Let each screen get width and height in as a parameter on draw() instead of hardcodin...
[ccbs] / bigscreen / groupscreen.cpp
index d8450f8679d370a8e16b97170433e5e75ae6855b..713c3b944d4d39c05c48a099ed631179a1517186 100644 (file)
@@ -1,13 +1,18 @@
+#include <cstdio>
 #include <algorithm>
+#include <map>
 
+#include "resolution.h"
 #include "groupscreen.h"
 #include "fetch_group.h"
-#include "fetch_max_score_for_song.h"
-#include "fetch_max_score_for_player.h"
+#include "fetch_max_score_for_songs.h"
+#include "fetch_max_score_for_players.h"
+#include "fetch_needs_update.h"
+#include "fetch_highscore.h"
 #include "fonts.h"
 
-GroupScreen::GroupScreen(pqxx::connection &conn, unsigned tournament, unsigned round, unsigned parallel)
-       : tournament(tournament), round(round), parallel(parallel), scores_changed(conn, "scores"), conn(conn), valid(false)
+GroupScreen::GroupScreen(pqxx::connection &conn, unsigned tournament, unsigned round, unsigned parallel, unsigned machine, unsigned num_machines)
+       : tournament(tournament), round(round), parallel(parallel), machine(machine), num_machines(num_machines), scores_changed(conn, "scores"), conn(conn), valid(false)
 {
 }
 
@@ -17,125 +22,190 @@ GroupScreen::~GroupScreen()
 
 bool GroupScreen::check_invalidated()
 {
-       // we might want to do this slightly more sophisticated later, but for now this will do
-       return !valid || scores_changed.get_flag();
+       if (!valid)
+               return true;
+       if (!scores_changed.get_flag())
+               return false;
+
+       bool needs_update;
+       conn.perform(FetchNeedsUpdate(last_updated, tournament, round, parallel, &needs_update));
+
+       if (!needs_update)
+               scores_changed.reset_flag();
+       
+       return needs_update;
 }
 
-void GroupScreen::draw(unsigned char *buf)
+void GroupScreen::draw(unsigned char *buf, unsigned width, unsigned height)
 {
+       std::vector<TextDefer> td;
+       
        scores_changed.reset_flag();
+       set_screen_size(width, height);
 
+       /*
+        * We'll probably need some values from here later on (although not all), just fetch them
+        * all while we're at it.
+        */
+       std::map<unsigned, unsigned> song_scores, player_scores;
+       conn.perform(FetchMaxScoreForSongs(tournament, &song_scores));
+       conn.perform(FetchMaxScoreForPlayers(tournament, round, &player_scores));
+       
        Group group;
        conn.perform(FetchGroup(tournament, round, parallel, &group));
+       gettimeofday(&last_updated, NULL);
 
-       memset(buf, 0, 800 * 600 * 4);
+       memset(buf, 0, width * height * 4);
 
        // main heading
        char heading[64];
-       if (parallel == 0) {
-               sprintf(heading, "Round %u", round);
+       if (num_machines == 1) {
+               if (parallel == 0) {
+                       std::sprintf(heading, "Round %u", round);
+               } else {
+                       std::sprintf(heading, "Round %u, Group %u", round, parallel);
+               }
        } else {
-               sprintf(heading, "Round %u, Group %u", round, parallel);
+               if (parallel == 0) {
+                       std::sprintf(heading, "Round %u, Machine %u", round, machine + 1);
+               } else {
+                       std::sprintf(heading, "Round %u, Group %u, Machine %u", round, parallel, machine + 1);
+               }
        }
 
        {
-               unsigned width = my_draw_text(heading, NULL, 48.0);
-               my_draw_text(heading, buf, 48.0, 800/2 - width/2, 60);
+               unsigned width = my_draw_text(heading, NULL, 40.0);
+               my_draw_text_deferred(td, heading, 40.0, LOGICAL_SCREEN_WIDTH/2 - width/2, 60);
        }
        
        // Find out how wide each column has to be. First try unlimited width (ie.
        // long titles for everything); if that gets too long, try again with short
        // titles for chosen songs.
-       unsigned width[16], num_scores;
+       unsigned colwidth[16], num_scores;
        unsigned max_num_width = my_draw_text("8888", NULL, 22.0);
-       unsigned mode;
-       for (mode = 0; mode < 2; ++mode) {
+       unsigned sumcolwidth;
+       for (unsigned mode = 0; mode < 2; ++mode) {
                for (unsigned i = 0; i < 16; ++i)
-                       width[i] = 0;
+                       colwidth[i] = 0;
 
                for (std::vector<Player>::const_iterator i = group.players.begin(); i != group.players.end(); ++i) {
                        unsigned col = 1;
-                       width[0] = std::max(width[0], my_draw_text(i->nick, NULL, 18.0));
+                       colwidth[0] = std::max(colwidth[0], my_draw_text(i->nick, NULL, 18.0));
 
                        for (std::vector<Score>::const_iterator j = i->scores.begin(); j != i->scores.end(); ++j, ++col) {
                                if (j->chosen) {
-                                       width[col] = std::max(width[col], my_draw_text((mode == 0) ? j->song.title : j->song.short_title, NULL, 12.0) + 
+                                       colwidth[col] = std::max(colwidth[col], my_draw_text((mode == 0) ? j->song.title : j->song.short_title, NULL, 12.0) + 
                                                        max_num_width + 10);
                                } else {                
-                                       width[col] = std::max(width[col], my_draw_text(j->song.short_title, NULL, 12.0));
-                                       width[col] = std::max(width[col], max_num_width);
+                                       colwidth[col] = std::max(colwidth[col], my_draw_text(j->song.short_title, NULL, 12.0));
+                                       colwidth[col] = std::max(colwidth[col], max_num_width);
                                }
                        }
                }
 
                num_scores = group.players[0].scores.size();
 
-               width[num_scores + 1] = std::max(my_draw_text("Total", NULL, 12.0), max_num_width);
-               width[num_scores + 2] = my_draw_text("Rank", NULL, 12.0);
+               colwidth[num_scores + 1] = std::max(my_draw_text("Total", NULL, 12.0), max_num_width);
+               colwidth[num_scores + 2] = my_draw_text("Rank", NULL, 12.0);
 
                // if we're at long titles and that works, don't try the short ones
-               if (mode == 0) {
-                       unsigned sumwidth = 0;
-                       for (unsigned i = 0; i <= num_scores + 2; ++i)
-                               sumwidth += width[i] + 20;
+               sumcolwidth = 0;
                        
-                       if (sumwidth < 800)
+               for (unsigned i = 0; i <= num_scores + 2; ++i)
+                       sumcolwidth += colwidth[i] + 20;
+                       
+               if (sumcolwidth < 780)
+                       break;
+       }
+
+       /* 
+        * If we have space to go, distribute as much as we can to the chosen song column, so we won't have
+        * total and rank jumping around.
+        */
+       if (sumcolwidth < 780) {
+               int first_chosen_col = -1;
+               unsigned col = 1;
+
+               for (std::vector<Score>::const_iterator i = group.players[0].scores.begin(); i != group.players[0].scores.end(); ++i, ++col) {
+                       if (i->chosen) {
+                               first_chosen_col = col;
                                break;
+                       }
+               }
+
+               if (first_chosen_col != -1) {
+                       colwidth[first_chosen_col] += 780 - sumcolwidth;
                }
        }
 
        // make column headings from the first player's songs
        unsigned col = 1;
-       unsigned x = 40 + width[0];
+       unsigned x = 40 + colwidth[0];
        for (std::vector<Score>::const_iterator i = group.players[0].scores.begin(); i != group.players[0].scores.end(); ++i, ++col) {
                if (!i->chosen) {
                        unsigned this_width = my_draw_text(i->song.short_title, NULL, 12.0);
-                       my_draw_text(i->song.short_title, buf, 12.0, x + width[col] / 2 - this_width / 2, 100);
+                       my_draw_text_deferred(td, i->song.short_title, 12.0, x + colwidth[col] / 2 - this_width / 2, 100);
                }
-               x += width[col] + 20;
+               x += colwidth[col] + 20;
        }
 
-       my_draw_text("Total", buf, 12.0, x + width[num_scores + 1] / 2 - my_draw_text("Total", NULL, 12.0) / 2, 100);
-       x += width[num_scores + 1] + 20;
-       my_draw_text("Rank", buf, 12.0, x + width[num_scores + 2] / 2 - my_draw_text("Rank", NULL, 12.0) / 2, 100);
+       my_draw_text_deferred(td, "Total", 12.0, x + colwidth[num_scores + 1] / 2 - my_draw_text("Total", NULL, 12.0) / 2, 100);
+       x += colwidth[num_scores + 1] + 20;
+       my_draw_text_deferred(td, "Rank", 12.0, x + colwidth[num_scores + 2] / 2 - my_draw_text("Rank", NULL, 12.0) / 2, 100);
        
        // show all the players and the scores
-       unsigned y = 140;
-       for (std::vector<Player>::const_iterator i = group.players.begin(); i != group.players.end(); ++i) {
-               my_draw_text(i->nick, buf, 18.0, 20, y);
+       unsigned num_players_this_machine = (group.players.size() + num_machines - machine - 1) / num_machines;
+       unsigned show_players = std::min(num_players_this_machine, 9U);
+       unsigned y = (show_players <= 7) ? 140 : (140 - (show_players - 7) * 5);
+       
+       unsigned row = 0, m = 0;
+       for (std::vector<Player>::const_iterator i = group.players.begin(); i != group.players.end() && row < 9; ++i) {
+               if (m++ % num_machines != machine)
+                       continue;
+
+               my_draw_text_deferred(td, i->nick, 18.0, 20, y);
 
-               unsigned x = 40 + width[0];
+               unsigned x = 40 + colwidth[0];
 
                unsigned col = 1;
                for (std::vector<Score>::const_iterator j = i->scores.begin(); j != i->scores.end(); ++j, ++col) {
-                       char text[16];
-                       sprintf(text, "%u", j->score);
+                       char text[16] = "";
+                       if (j->score != -1) {
+                               std::sprintf(text, "%u", j->score);
+                       }
        
                        unsigned this_width = my_draw_text(text, NULL, 22.0);
                        if (j->chosen) {
-                               if (j->score != -1) {
-                                       my_draw_text(text, buf, 22.0, x + max_num_width - this_width, y);
+                               my_draw_text_deferred(td, text, 22.0, x + max_num_width - this_width, y);
+
+                               // draw the long name if we can, otherwise use the short one
+                               if (my_draw_text(j->song.title, NULL, 12.0) > (colwidth[col] - 10 - max_num_width)) {
+                                       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);
                                }
-                               my_draw_text((mode == 0) ? j->song.title : j->song.short_title, buf, 12.0, x + max_num_width + 10, y);
                        } else {
-                               if (j->score != -1) {
-                                       my_draw_text(text, buf, 22.0, x + width[col] / 2 - this_width / 2, y);
-                               }
+                               my_draw_text_deferred(td, text, 22.0, x + colwidth[col] / 2 - this_width / 2, y);
                        }
-                       x += width[col] + 20;
+                       x += colwidth[col] + 20;
                }
 
                // draw total
                {
                        char text[16];
-                       sprintf(text, "%u", i->total);
+                       std::sprintf(text, "%u", i->total);
                        
                        unsigned this_width = my_draw_text(text, NULL, 22.0);
-                       my_draw_text(text, buf, 22.0, x + width[num_scores + 1] / 2 - this_width / 2, y);
-                       x += width[num_scores + 1] + 20;
+                       my_draw_text_deferred(td, text, 22.0, x + colwidth[num_scores + 1] / 2 - this_width / 2, y);
+                       x += colwidth[num_scores + 1] + 20;
                }
 
-               y += 40;
+               if (show_players > 7)
+                       y += 40 - (show_players - 7) * 4;
+               else 
+                       y += 40;
+               ++row;
+               
        }
        
        /*
@@ -158,8 +228,6 @@ void GroupScreen::draw(unsigned char *buf)
         * matter of sorting; the best attainable rank for player X is obtained if 
         * X gets max score and all others get min score, the worst attainable rank
         * is obtained if X gets min score and all others get max score.
-        *
-        * This is a bit SQL-heavy, but heck...
         */
        std::vector<unsigned> max_score, min_score;
        for (std::vector<Player>::const_iterator i = group.players.begin(); i != group.players.end(); ++i) {
@@ -173,9 +241,9 @@ void GroupScreen::draw(unsigned char *buf)
                                unsigned max_score_this_song;
                                if (j->song.id != -1) {
                                        // random song, or we know what song the player picked
-                                       conn.perform(FetchMaxScoreForSong(tournament, j->song.id, &max_score_this_song));
+                                       max_score_this_song = song_scores[j->song.id];
                                } else {
-                                       conn.perform(FetchMaxScoreForPlayer(tournament, i->id, round, &max_score_this_song));
+                                       max_score_this_song = player_scores[i->id];
                                }
                                max_score_tp += max_score_this_song;
                        }
@@ -185,8 +253,8 @@ void GroupScreen::draw(unsigned char *buf)
        }
 
        // now finally find min and max rank, and draw it all
-       y = 140;
-       for (unsigned i = 0; i < group.players.size(); ++i) {
+       y = (show_players <= 7) ? 140 : (140 - (show_players - 7) * 5);
+       for (unsigned i = 0; i < group.players.size() && (i/num_machines) < show_players; ++i) {
                unsigned best_rank = 1, worst_rank = 1;
                for (unsigned j = 0; j < group.players.size(); ++j) {
                        if (i == j)
@@ -204,12 +272,238 @@ void GroupScreen::draw(unsigned char *buf)
                else
                        std::sprintf(text, "%u-%u", best_rank, worst_rank);
                
+               if (i % num_machines != machine)
+                       continue;
+               
                unsigned this_width = my_draw_text(text, NULL, 22.0);
-               my_draw_text(text, buf, 22.0, x + width[num_scores + 2] / 2 - this_width / 2, y);
+               my_draw_text_deferred(td, text, 22.0, x + colwidth[num_scores + 2] / 2 - this_width / 2, y);
 
-               y += 40;
+               if (show_players > 7)
+                       y += 40 - (show_players - 7) * 4;
+               else 
+                       y += 40;
        }
                
+       /*
+        * Next up (at the bottom) is "who's playing, what will he/she be playing, and
+        * optionally, how much to lead/win and how much to secure qualification" (the
+        * last one only in the final round). We assume playing is done in a modified
+        * zigzag; all the random songs are played first in zigzag/wrapping order (player
+        * 1 song 1, player 2 song 2, player 3 song 3, player 1 song 2, player 2 song 3,
+        * player 3 song 1, etc... assuming three songs and three players) and then all
+        * the chosen songs are played (we assume only one chosen song).
+        *
+        * The lines are as follows:
+        *
+        * <player>
+        * <song>
+        * High score: <hs> by <hsplayer> at <hsevent>
+        * Needs to lead: <leadscore>
+        * Needs to secure qualification: <qualscore>
+        * Needs to win group: <winscore>
+        */
+       
+       /* Find the first player with the fewest songs played and part of this machine. */
+       unsigned min_played_songs = 9999, num_random_songs = 0;
+       Player *next_player = NULL;
+       m = 0;
+       for (std::vector<Player>::iterator i = group.players.begin(); i != group.players.end(); ++i) {
+               unsigned this_played = 0, this_random_songs = 0;
+               for (std::vector<Score>::const_iterator j = i->scores.begin(); j != i->scores.end(); ++j, ++col) {
+                       if (j->score != -1)
+                               ++this_played;
+                       if (!j->chosen)
+                               ++this_random_songs;
+               }
+
+               if ((m++ % num_machines == machine) && this_played < min_played_songs) {
+                       min_played_songs = this_played;
+                       next_player = &(*i);
+                       num_random_songs = this_random_songs;  // should be equal for all
+               }
+       }
+
+       /* Find out what song this player is supposed to play next; try random songs first */ 
+       Score *next_song = NULL;
+
+       for (unsigned i = 0; i < num_random_songs; ++i) {
+               unsigned j = (i + next_player->position - 1) % num_random_songs;
+               if (next_player->scores[j].score == -1) {
+                       next_song = &(next_player->scores[j]);
+                       break;
+               }
+       }
+
+       // then all songs, if that didn't work out (slightly icky, but hey)
+       if (next_song == NULL) {
+               for (unsigned i = 0; i < num_scores; ++i) {
+                       unsigned j = (i + next_player->position) % num_scores;
+                       if (next_player->scores[j].score == -1) {
+                               next_song = &(next_player->scores[j]);
+                               break;
+                       }
+               }
+       }
+
+       if (next_song != NULL) {
+               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, (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);
+                       my_draw_text(next_song->song.title, buf, 20.0, (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);
+                               my_draw_text(text, buf, 16.0, (LOGICAL_SCREEN_WIDTH/2) - 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
+                               max_score_this_song = song_scores[next_song->song.id];
+                       } else {
+                               max_score_this_song = player_scores[next_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 == 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<unsigned> 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<unsigned> 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);
+                       
+                               if (lead_need > 0) {
+                                       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, (LOGICAL_SCREEN_WIDTH/2) - 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);
+                               
+                               if (win_need > 0) {
+                                       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, (LOGICAL_SCREEN_WIDTH/2) - this_width/2, y);
+
+                                       y += 30;
+                               }
+                       }
+
+                       if (group.num_qualifying > 0 &&
+                           next_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 - next_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);
+                                       my_draw_text(text, buf, 18.0, (LOGICAL_SCREEN_WIDTH/2) - this_width/2, y);
+                               
+                                       y += 30;
+                               }
+                       }
+               }
+       }
+       
        valid = true;
+       draw_all_deferred_text(buf, td, last_text);
+       last_text = td;
 }
 
+int GroupScreen::get_priority()
+{
+       return 10;
+}