misc/tools/midi2cfg-ng.pl

   1 #!/usr/bin/perl
   2
   3 # converter from Type 1 MIDI files to CFG files that control bots with the Tuba and other weapons for percussion (requires g_weaponarena all)
   4 # usage:
   5 #   perl midi2cfg.pl filename.mid basenote walktime "x y z" "x y z" "x y z" ... "/" "x y z" "x y z" ... > filename.cfg
   6
   7 use strict;
   8 use warnings;
   9 use MIDI;
  10 use MIDI::Opus;
  11 use Storable;
  12
  13 use constant MIDI_FIRST_NONCHANNEL => 17;
  14 use constant MIDI_DRUMS_CHANNEL => 10;
  15
  16 my ($filename, $transpose, $timeoffset) = @ARGV;
  17
  18 my $opus = MIDI::Opus->new({from_file => $filename});
  19 #$opus->write_to_file("/tmp/y.mid");
  20 my $ticksperquarter = $opus->ticks();
  21 my $tracks = $opus->tracks_r();
  22 my @tempi = (); # list of start tick, time per tick pairs (calculated as seconds per quarter / ticks per quarter)
  23 my $tick;
  24
  25 $tick = 0;
  26 for($tracks->[0]->events())
  27 {
  28     $tick += $_->[1];
  29     if($_->[0] eq 'set_tempo')
  30     {
  31         push @tempi, [$tick, $_->[2] * 0.000001 / $ticksperquarter];
  32     }
  33 }
  34 sub tick2sec($)
  35 {
  36     my ($tick) = @_;
  37     my $sec = 0;
  38     my $curtempo = [0, 0.5 / $ticksperquarter];
  39     for(@tempi)
  40     {
  41         if($_->[0] < $tick)
  42         {
  43                         # this event is in the past
  44                         # we add the full time since the last one then
  45                         $sec += ($_->[0] - $curtempo->[0]) * $curtempo->[1];
  46         }
  47         else
  48         {
  49                         # if this event is in the future, we break
  50                         last;
  51         }
  52                 $curtempo = $_;
  53     }
  54         $sec += ($tick - $curtempo->[0]) * $curtempo->[1];
  55         return $sec;
  56 }
  57
  58 # merge all to a single track
  59 my @allmidievents = ();
  60 my $sequence = 0;
  61 for my $track(0..@$tracks-1)
  62 {
  63         $tick = 0;
  64         for($tracks->[$track]->events())
  65         {
  66                 my ($command, $delta, @data) = @$_;
  67                 $tick += $delta;
  68                 push @allmidievents, [$command, $tick, $sequence++, $track, @data];
  69         }
  70 }
  71 @allmidievents = sort { $a->[1] <=> $b->[1] or $a->[2] <=> $b->[2] } @allmidievents;
  72
  73
  74
  75
  76
  77
  78 sub botconfig_read($)
  79 {
  80         my ($fn) = @_;
  81         my %bots = ();
  82         open my $fh, "<", $fn
  83                 or die "<$fn: $!";
  84
  85         my $currentbot = undef;
  86         my $appendref = undef;
  87         my $super = undef;
  88         while(<$fh>)
  89         {
  90                 chomp;
  91                 s/\s*#.*//;
  92                 next if /^$/;
  93                 if(s/^\t\t//)
  94                 {
  95                         my @cmd = split /\s+/, $_;
  96                         if($cmd[0] eq 'super')
  97                         {
  98                                 push @$appendref, @$super;
  99                         }
 100                         else
 101                         {
 102                                 push @$appendref, \@cmd;
 103                         }
 104                 }
 105                 elsif(s/^\t//)
 106                 {
 107                         if(/^include (.*)/)
 108                         {
 109                                 my $base = $bots{$1};
 110                                 for(keys %$base)
 111                                 {
 112                                         if(ref $base->{$_})
 113                                         {
 114                                                 $currentbot->{$_} = Storable::dclone $base->{$_}; # copy array items as new array
 115                                         }
 116                                         else
 117                                         {
 118                                                 $currentbot->{$_} = $base->{$_};
 119                                         }
 120                                 }
 121                                 # better: do some merging TODO
 122                         }
 123                         elsif(/^count (\d+)/)
 124                         {
 125                                 $currentbot->{count} = $1;
 126                         }
 127                         elsif(/^transpose (\d+)/)
 128                         {
 129                                 $currentbot->{transpose} += $1;
 130                         }
 131                         elsif(/^channels (.*)/)
 132                         {
 133                                 $currentbot->{channels} = { map { $_ => 1 } split /\s+/, $1 };
 134                         }
 135                         elsif(/^init$/)
 136                         {
 137                                 $super = $currentbot->{init};
 138                                 $currentbot->{init} = $appendref = [];
 139                         }
 140                         elsif(/^note on (-?\d+)/)
 141                         {
 142                                 $super = $currentbot->{notes_on}->{$1};
 143                                 $currentbot->{notes_on}->{$1} = $appendref = [];
 144                         }
 145                         elsif(/^note off (-?\d+)/)
 146                         {
 147                                 $super = $currentbot->{notes_off}->{$1};
 148                                 $currentbot->{notes_off}->{$1} = $appendref = [];
 149                         }
 150                         elsif(/^percussion (\d+)/)
 151                         {
 152                                 $super = $currentbot->{percussion}->{$1};
 153                                 $currentbot->{percussion}->{$1} = $appendref = [];
 154                         }
 155                         else
 156                         {
 157                                 print "unknown command: $_\n";
 158                         }
 159                 }
 160                 elsif(/^bot (.*)/)
 161                 {
 162                         $currentbot = ($bots{$1} ||= {});
 163                 }
 164                 else
 165                 {
 166                         print "unknown command: $_\n";
 167                 }
 168         }
 169
 170         my $lowesttimeoffset = 0;
 171         for(values %bots)
 172         {
 173                 my $l = $_->{init};
 174                 next unless defined $l;
 175                 next unless $l->[0]->[0] eq 'time';
 176                 my $t = $l->[0]->[1];
 177                 $lowesttimeoffset = $t
 178                         if $t < $lowesttimeoffset;
 179         }
 180         print STDERR "Using a time adjustment of $lowesttimeoffset\n";
 181         $timeoffset -= $lowesttimeoffset;
 182
 183         return \%bots;
 184 }
 185
 186 sub busybot_cmd_bot_test($$@)
 187 {
 188         my ($bot, $time, @commands) = @_;
 189
 190         my $bottime = defined $bot->{timer} ? $bot->{timer} : -$timeoffset-1;
 191         my $botbusytime = defined $bot->{busytimer} ? $bot->{busytimer} : -$timeoffset-1;
 192
 193         return 0
 194                 if $time < $botbusytime;
 195
 196         my $mintime = (@commands && ($commands[0]->[0] eq 'time')) ? $commands[0]->[1] : 0;
 197
 198         return 0
 199                 if $time + $mintime < $bottime;
 200
 201         return 1;
 202 }
 203
 204 sub busybot_cmd_bot_execute($$@)
 205 {
 206         my ($bot, $time, @commands) = @_;
 207
 208         for(@commands)
 209         {
 210                 if($_->[0] eq 'time')
 211                 {
 212                         printf "w %d %f\n", $bot->{id}, $time + $_->[1] + $timeoffset;
 213                         $bot->{timer} = $time + $_->[1];
 214                 }
 215                 elsif($_->[0] eq 'busy')
 216                 {
 217                         $bot->{busytimer} = $time + $_->[1];
 218                 }
 219                 elsif($_->[0] eq 'buttons')
 220                 {
 221                         my %buttons_release = %{$bot->{buttons} ||= {}};
 222                         for(@{$_}[1..@$_-1])
 223                         {
 224                                 /(.*)\??/ or next;
 225                                 delete $buttons_release{$1};
 226                         }
 227                         for(keys %buttons_release)
 228                         {
 229                                 printf "r %d %s\n", $bot->{id}, $_;
 230                                 delete $bot->{buttons}->{$_};
 231                         }
 232                         for(@{$_}[1..@$_-1])
 233                         {
 234                                 /(.*)(\?)?/ or next;
 235                                 defined $2 and next;
 236                                 printf "p %d %s\n", $bot->{id}, $_;
 237                                 $bot->{buttons}->{$_} = 1;
 238                         }
 239                 }
 240                 elsif($_->[0] eq 'cmd')
 241                 {
 242                         printf "sv_cmd bot_cmd %d %s\n", $bot->{id}, join " ", @{$_}[1..@$_-1];
 243                 }
 244         }
 245
 246         return 1;
 247 }
 248
 249 sub busybot_note_off_bot($$$$)
 250 {
 251         my ($bot, $time, $channel, $note) = @_;
 252         my $cmds = $bot->{notes_off}->{$note - $bot->{transpose} - $transpose};
 253         return 1
 254                 if not defined $cmds; # note off cannot fail
 255         busybot_cmd_bot_execute $bot, $time, @$cmds;
 256         return 1;
 257 }
 258
 259 sub busybot_note_on_bot($$$$$)
 260 {
 261         my ($bot, $time, $channel, $note, $init) = @_;
 262         return -1 # I won't play on this channel
 263                 if defined $bot->{channels} and not grep { $_ == $channel } $bot->{channels};
 264         my $cmds = $bot->{notes_on}->{$note - $bot->{transpose} - $transpose};
 265         if(not defined $cmds)
 266         {
 267                 $cmds = $bot->{percussion}->{$note};
 268                 return -1 # I won't play this note
 269                         if not defined $cmds;
 270         }
 271         if($init && $bot->{init})
 272         {
 273                 return 0
 274                         if not busybot_cmd_bot_test $bot, 0, @{$bot->{init}};
 275                 return 0
 276                         if not busybot_cmd_bot_test $bot, $time, @$cmds;
 277                 busybot_cmd_bot_execute $bot, 0, @{$bot->{init}};
 278                 busybot_cmd_bot_execute $bot, $time, @$cmds;
 279         }
 280         else
 281         {
 282                 return 0
 283                         if not busybot_cmd_bot_test $bot, $time, @$cmds;
 284                 busybot_cmd_bot_execute $bot, $time, @$cmds;
 285         }
 286         return 1;
 287 }
 288
 289 my $busybots = botconfig_read "midi2cfg-ng.conf";
 290 my @busybots_allocated;
 291 my %notechannelbots;
 292
 293 sub busybot_note_off($$$)
 294 {
 295         my ($time, $channel, $note) = @_;
 296
 297         if(my $bot = $notechannelbots{$channel}{$note})
 298         {
 299                 busybot_note_off_bot $bot, $time, $channel, $note;
 300                 delete $notechannelbots{$channel}{$note};
 301                 return 1;
 302         }
 303
 304         return 0;
 305 }
 306
 307 sub busybot_note_on($$$)
 308 {
 309         my ($time, $channel, $note) = @_;
 310
 311         if($notechannelbots{$channel}{$note})
 312         {
 313                 busybot_note_off $time, $channel, $note;
 314         }
 315
 316         my $overflow = 0;
 317
 318         for(@busybots_allocated)
 319         {
 320                 my $canplay = busybot_note_on_bot $_, $time, $channel, $note, 0;
 321                 if($canplay > 0)
 322                 {
 323                         $notechannelbots{$channel}{$note} = $_;
 324                         return 1;
 325                 }
 326                 $overflow = 1
 327                         if $canplay == 0;
 328                 # wrong
 329         }
 330
 331         for(map { $_->[0] } sort { $a->[1] <=> $b->[1] } map { [$_, rand] } keys %$busybots)
 332         {
 333                 next if $busybots->{$_}->{count} <= 0;
 334                 my $bot = Storable::dclone $busybots->{$_};
 335                 $bot->{id} = @busybots_allocated + 1;
 336                 $bot->{classname} = $_;
 337                 my $canplay = busybot_note_on_bot $bot, $time, $channel, $note, 1;
 338                 if($canplay > 0)
 339                 {
 340                         --$busybots->{$_}->{count};
 341                         $notechannelbots{$channel}{$note} = $bot;
 342                         push @busybots_allocated, $bot;
 343                         return 1;
 344                 }
 345                 $overflow = 1
 346                         if $canplay == 0;
 347         }
 348
 349         if($overflow)
 350         {
 351                 warn "Not enough bots to play this";
 352                 use Data::Dumper;
 353                 print STDERR Dumper \@busybots_allocated;
 354         }
 355         else
 356         {
 357                 warn "Note $channel:$note cannot be played by any bot"
 358         }
 359
 360         return 0;
 361 }
 362
 363 print 'alias p "sv_cmd bot_cmd $1 presskey $2"' . "\n";
 364 print 'alias r "sv_cmd bot_cmd $1 releasekey $2"' . "\n";
 365 print 'alias w "sv_cmd bot_cmd $1 wait_until $2"' . "\n";
 366 print 'alias m "sv_cmd bot_cmd $1 moveto \"$2 $3 $4\""' . "\n";
 367
 368 my %midinotes = ();
 369 my $note_min = undef;
 370 my $note_max = undef;
 371 my $notes_stuck = 0;
 372 for(@allmidievents)
 373 {
 374         my $t = tick2sec $_->[1];
 375         my $track = $_->[3];
 376         if($_->[0] eq 'note_on')
 377         {
 378                 my $chan = $_->[4] + 1;
 379                 $note_min = $_->[5]
 380                         if not defined $note_min or $_->[5] < $note_min;
 381                 $note_max = $_->[5]
 382                         if not defined $note_max or $_->[5] > $note_max;
 383                 if($midinotes{$chan}{$_->[5]})
 384                 {
 385                         --$notes_stuck;
 386                         busybot_note_off($t, $chan, $_->[5]);
 387                 }
 388                 busybot_note_on($t, $chan, $_->[5]);
 389                 ++$notes_stuck;
 390                 $midinotes{$chan}{$_->[5]} = 1;
 391         }
 392         elsif($_->[0] eq 'note_off')
 393         {
 394                 my $chan = $_->[4] + 1;
 395                 if($midinotes{$chan}{$_->[5]})
 396                 {
 397                         --$notes_stuck;
 398                         busybot_note_off($t, $chan, $_->[5]);
 399                 }
 400                 $midinotes{$chan}{$_->[5]} = 0;
 401         }
 402 }
 403
 404 print STDERR "Range of notes: $note_min .. $note_max\n";
 405 print STDERR "Safe transpose range: @{[$note_max - 19]} .. @{[$note_min + 13]}\n";
 406 print STDERR "Unsafe transpose range: @{[$note_max - 27]} .. @{[$note_min + 18]}\n";
 407 print STDERR "Stuck notes: $notes_stuck\n";
 408 print STDERR "Bots allocated:\n";
 409 for(@busybots_allocated)
 410 {
 411         print STDERR "$_->{id} is a $_->{classname}\n";
 412 }