--- deliantra/Deliantra-Client/bin/cfplus	2007/07/12 17:56:51	1.163
+++ deliantra/Deliantra-Client/bin/cfplus	2007/07/14 12:05:53	1.168
@@ -163,8 +163,10 @@
 our $SDL_MIXER;
 our $MUSIC_DEFAULT = "in_a_heartbeat.ogg";
 our @MUSIC_WANT;
+our $MUSIC_START;
 our $MUSIC_PLAYING;
 our $MUSIC_PLAYER;
+our $MUSIC_RESUME = 30; # resume music when players less than these many seconds before
 our @SOUNDS;       # event => file mapping
 our %AUDIO_CHUNKS; # audio files
 
@@ -504,6 +506,8 @@
    $SPELL_LIST->clear_spells;
    $CFPlus::UI::ROOT->emit (stop_game => ! ! $CONN);
 
+   &audio_music_set ([]);
+
    return unless $CONN;
 
    status "connection closed";
@@ -2017,50 +2021,72 @@
 sub audio_music_set {
    my ($songs) = @_;
 
-   my $count = @$songs;
-   my @meta;
+   my @want =
+      grep $_,
+         map $CONN->{music_meta}{$_},
+            @$songs;
+
+   if (@want) {
+      @MUSIC_WANT = @want;
+      &audio_music_changed ();
+   }
+}
 
-   for my $name (@$songs) {
-      CFPlus::DB::get resmap => $name, sub {
-         my ($data) = @_;
-
-         if ($data) {
-            $data = JSON::XS->new->utf8->decode ($data);
-            $data->{path} = CFPlus::DB::path_of $name;
-            push @meta, $data;
-         }
+sub audio_music_start {
+   my $path = $MUSIC_PLAYING->{path}
+      or return;
+
+   CFPlus::DB::prefetch_file $path, 1024_000, sub {
+      # music might have changed...
+      $path eq $MUSIC_PLAYING->{path}
+         or return &audio_music_start ();
+
+      $MUSIC_PLAYER = new_from_file CFPlus::MixMusic $path;
+
+      my $NOW = time;
+
+      if ($MUSIC_PLAYING->{stop_time} > $NOW - $MUSIC_RESUME) {
+         my $pos = $MUSIC_PLAYING->{stop_pos};
+         $MUSIC_PLAYER->fade_in_pos (0, 1000, $pos);
+         $MUSIC_START = time - $pos;
+      } else {
+         $MUSIC_PLAYER->play (0);
+         $MUSIC_START = time;
+      }
 
-         unless (--$count) {
-            if (@meta) {
-               @MUSIC_WANT = @meta;
-               &audio_music_changed ();
-            }
-         }
-      };
+      delete $MUSIC_PLAYING->{stop_time};
+      delete $MUSIC_PLAYING->{stop_pos};
    }
 }
 
 sub audio_music_changed {
    return unless $CFG->{bgm_enable};
 
-   # default MUSIC_WANT, undef/0 == MUSIC_DEFAULT
+   # default MUSIC_WANT == MUSIC_DEFAULT
    @MUSIC_WANT = { path => CFPlus::find_rcfile "music/$MUSIC_DEFAULT" } unless @MUSIC_WANT;
    
    # if the currently playing song is acceptable, let it continue
-   return if grep $MUSIC_PLAYING eq $_->{path}, @MUSIC_WANT;
+   return if $MUSIC_PLAYING
+             && grep $MUSIC_PLAYING->{path} eq $_->{path}, @MUSIC_WANT;
 
-   if (defined $MUSIC_PLAYING) {
-      warn "fade out";
-      CFPlus::MixMusic::fade_out 2000;
-   } else {
-      warn "new music\n";
+   my $NOW = time;
 
-      my $music = $MUSIC_WANT [rand @MUSIC_WANT];
+   if ($MUSIC_PLAYING) {
+      $MUSIC_PLAYING->{stop_time} = $NOW;
+      $MUSIC_PLAYING->{stop_pos}  = $NOW - $MUSIC_START;
+      CFPlus::MixMusic::fade_out 1000;
+   } else {
+      # sort by stop time, oldest first
+      @MUSIC_WANT = sort { $a->{stop_time} <=> $b->{stop_time} } @MUSIC_WANT;
 
-      $MUSIC_PLAYING = $music->{path};
+      # if the most recently-played piece played very recently,
+      # resume it, else choose the oldest piece for rotation.
+      $MUSIC_PLAYING =
+         $MUSIC_WANT[-1]{stop_time} > $NOW - $MUSIC_RESUME
+            ? $MUSIC_WANT[-1]
+            : $MUSIC_WANT[0];
 
-      $MUSIC_PLAYER = new_from_file CFPlus::MixMusic $music->{path};
-      $MUSIC_PLAYER->play (0);
+      audio_music_start;
    }
 }