]> git.sesse.net Git - ccbs/blobdiff - bigscreen/groupscreen.cpp
Actually check in changes from last time...
[ccbs] / bigscreen / groupscreen.cpp
index ff8cbace21439de9f30bf83844f0c2c7e023d3f8..7e45628851225e48da81b472d789fb6d098ecfe9 100644 (file)
@@ -1,7 +1,11 @@
+#include <cstdio>
 #include <algorithm>
 
 #include "groupscreen.h"
 #include "fetch_group.h"
+#include "fetch_max_score_for_song.h"
+#include "fetch_max_score_for_player.h"
+#include "fetch_needs_update.h"
 #include "fonts.h"
 
 GroupScreen::GroupScreen(pqxx::connection &conn, unsigned tournament, unsigned round, unsigned parallel)
@@ -15,8 +19,18 @@ 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)
@@ -25,43 +39,81 @@ void GroupScreen::draw(unsigned char *buf)
 
        Group group;
        conn.perform(FetchGroup(tournament, round, parallel, &group));
+       gettimeofday(&last_updated, NULL);
 
        memset(buf, 0, 800 * 600 * 4);
-       
-       // find out how wide each column has to be
-       unsigned width[16];
-       for (unsigned i = 0; i < 16; ++i)
-               width[i] = 0;
 
-       unsigned max_num_width = my_draw_text("88888", NULL, 22.0);
+       // main heading
+       char heading[64];
+       if (parallel == 0) {
+               sprintf(heading, "Round %u", round);
+       } else {
+               sprintf(heading, "Round %u, Group %u", round, parallel);
+       }
 
-       for (std::vector<Player>::const_iterator i = group.players.begin(); i != group.players.end(); ++i) {
-               width[0] = std::max(width[0], my_draw_text(i->nick, NULL, 18.0));
+       {
+               unsigned width = my_draw_text(heading, NULL, 48.0);
+               my_draw_text(heading, buf, 48.0, 800/2 - 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 max_num_width = my_draw_text("8888", NULL, 22.0);
+       unsigned mode;
+       for (mode = 0; mode < 2; ++mode) {
+               for (unsigned i = 0; i < 16; ++i)
+                       width[i] = 0;
 
-               unsigned col = 1;
-               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(j->song.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);
+               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));
+
+                       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) + 
+                                                       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);
+                               }
                        }
                }
-       }       
+
+               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);
+
+               // 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;
+                       
+                       if (sumwidth < 800)
+                               break;
+               }
+       }
 
        // make column headings from the first player's songs
-       unsigned col = 1, x = 40 + width[0];
+       unsigned col = 1;
+       unsigned x = 40 + width[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, 30);
+                       my_draw_text(i->song.short_title, buf, 12.0, x + width[col] / 2 - this_width / 2, 100);
                }
                x += width[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);
        
        // show all the players and the scores
-       unsigned y = 70;
+       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);
 
@@ -69,26 +121,106 @@ void GroupScreen::draw(unsigned char *buf)
 
                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) {
+                               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(j->song.title, buf, 12.0, x + max_num_width + 10, y);
+                               my_draw_text(text, buf, 22.0, x + max_num_width - this_width, 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(text, buf, 22.0, x + width[col] / 2 - this_width / 2, y);
                        }
                        x += width[col] + 20;
                }
 
+               // draw total
+               {
+                       char text[16];
+                       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;
+               }
+
                y += 40;
        }
        
+       /*
+        * Approximate (but probably working quite well in practice) heuristic
+        * for finding the min and max rank of a player works as follows:
+        *
+        * First of all, find out, for each player in the group, what the
+        * maximum remaining score possibly can be (the minimum score is of
+        * course identical to the player's current total). For a random song,
+        * this is of course 1000 * (maximum feet rating) (but of course, that
+        * depends on whether we can play single or double! for now, assume
+        * double is okay, but this logic will be deferred to FetchMaxScore
+        * anyhow); for a random song, we simply pick the highest-ranking song
+        * we can find, EXCEPT those the player has chosen earlier AND the
+        * random songs this round, AND all random songs from elimination rounds
+        * (ie. rounds with only one group). (Phew!) This doesn't solve problems
+        * we'd face with more than one chosen song, but it should be good enough.
+        *
+        * After we've found the max and min scores for all players, it's a simple
+        * 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) {
+               unsigned min_score_tp = 0, max_score_tp = 0;
+               for (std::vector<Score>::const_iterator j = i->scores.begin(); j != i->scores.end(); ++j, ++col) {
+                       if (j->score != -1) {
+                               // already given
+                               min_score_tp += j->score;
+                               max_score_tp += j->score;
+                       } else {
+                               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));
+                               } else {
+                                       conn.perform(FetchMaxScoreForPlayer(tournament, i->id, round, &max_score_this_song));
+                               }
+                               max_score_tp += max_score_this_song;
+                       }
+               }
+               max_score.push_back(max_score_tp);
+               min_score.push_back(min_score_tp);
+       }
+
+       // now finally find min and max rank, and draw it all
+       y = 140;
+       for (unsigned i = 0; i < group.players.size(); ++i) {
+               unsigned best_rank = 1, worst_rank = 1;
+               for (unsigned j = 0; j < group.players.size(); ++j) {
+                       if (i == j)
+                               continue;
+
+                       if (max_score[i] < min_score[j])
+                               ++best_rank;
+                       if (min_score[i] <= max_score[j])
+                               ++worst_rank;
+               }
+
+               char text[16];
+               if (best_rank == worst_rank)
+                       std::sprintf(text, "%u", best_rank);
+               else
+                       std::sprintf(text, "%u-%u", best_rank, worst_rank);
+               
+               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);
+
+               y += 40;
+       }
+               
        valid = true;
 }