From 13ed6ca4807f938eba70592b2cb728cd3b632115 Mon Sep 17 00:00:00 2001
From: "Steinar H. Gunderson" <sesse@samfundet.no>
Date: Sun, 20 Feb 2005 16:00:09 +0000
Subject: [PATCH] Add preliminary "needs to qualify/win" text. 14:00-17:00

---
 bigscreen/groupscreen.cpp | 77 ++++++++++++++++++++++++++++++++++++++-
 bigscreen/widestring.cpp  | 10 +++++
 bigscreen/widestring.h    |  2 +
 3 files changed, 87 insertions(+), 2 deletions(-)

diff --git a/bigscreen/groupscreen.cpp b/bigscreen/groupscreen.cpp
index 64bf7b9..7062812 100644
--- a/bigscreen/groupscreen.cpp
+++ b/bigscreen/groupscreen.cpp
@@ -257,8 +257,9 @@ void GroupScreen::draw(unsigned char *buf)
 	 * <player>
 	 * <song>
 	 * High score: <hs> by <hsplayer> at <hsevent>
-	 * Needs to (lead/win): <leadscore>
+	 * Needs to lead: <leadscore>
 	 * Needs to secure qualification: <qualscore>
+	 * Needs to win group: <winscore>
 	 */
 	
 	/* Find the first player with the fewest songs played. */
@@ -305,7 +306,79 @@ 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, 450);
+
+		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, 487);
+
+			// fetch the high score later
+			text = widestring("High score: ") + widestring(pqxx::to_string(1234)) +
+				widestring(", by dufF in Challenge Cup 1, 2004");
+			this_width = my_draw_text(text, NULL, 16.0);
+			my_draw_text(text, buf, 16.0, 400 - this_width/2, 517);
+		}
+
+		// 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 = 540;
+			
+			// see what score this player must beat to lead
+			unsigned lead_beat = 0, win_beat = 0, qualify_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]);
+			}
+
+			// print out the lines we can attain
+			if (next_player->total + max_score_this_song > lead_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, 22.0);
+				my_draw_text(text, buf, 22.0, 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, 22.0);
+				my_draw_text(text, buf, 22.0, 400 - this_width/2, y);
+
+				y += 30;
+			}
+		}
 	}
 	
 	valid = true;
diff --git a/bigscreen/widestring.cpp b/bigscreen/widestring.cpp
index 9193586..4b67ec7 100644
--- a/bigscreen/widestring.cpp
+++ b/bigscreen/widestring.cpp
@@ -16,6 +16,16 @@ widestring::widestring(const char *from)
 	*this = from;
 }
 
+widestring::widestring(const std::string &from)
+{
+	*this = from.c_str();
+}
+
+widestring::widestring(const std::wstring &from)
+	: std::wstring(from)
+{
+}
+
 void widestring::operator= (const char *from)
 {
 	if (!iconv_initialized) {
diff --git a/bigscreen/widestring.h b/bigscreen/widestring.h
index 437428c..67ffdbb 100644
--- a/bigscreen/widestring.h
+++ b/bigscreen/widestring.h
@@ -9,6 +9,8 @@ class widestring : public std::wstring
 public:
 	widestring();
 	widestring(const char *from);
+	widestring(const std::string &from);
+	widestring(const std::wstring &from);
 	void operator= (const char *from);
 };
 
-- 
2.39.2