Class: MapReader

Inherits:
Object
  • Object
show all
Includes:
MapUnquote
Defined in:
lib/IFMapper/MapReader.rb

Overview

A generic abstract class for reading a map from some file format.

Map readers are expected to parse their file formats and call:

new_room new_door new_obj

with @tag and @name defined.

These functions create arrays of temporary Map* classes (like MapRoom) that represent the room and their connections.

Later on, the create() function is invoked to actually create those rooms as actual FXRooms and similar. The reason this is done this way is because in order to position FXRooms around, we need to previously know the location of all rooms and their exits.

Defined Under Namespace

Classes: MapDoor, MapError, MapObject, MapOneWay, MapRoom, MapSpecialExit, ParseError

Constant Summary collapse

SEP = 
':'
DIRLIST =

Direction list in order of positioning preference.

[ 0, 4, 2, 6, 1, 3, 5, 7 ]
@@debug = 
nil

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from MapUnquote

#unquote

Constructor Details

#initialize(file, map = Map.new('Read Map')) ⇒ MapReader

Returns a new instance of MapReader.



868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
 
# File 'lib/IFMapper/MapReader.rb', line 868

def initialize(file, map = Map.new('Read Map'))
  @map = map

  @doors   = []
  @functions = []
  @tags    = {}
  @rooms   = []
  @objects = []

  @include_dirs = [File.dirname(file)]
  set_include_dirs

  if @map.kind_of?(FXMap)
    return unless properties
  end

  create_map(file)

  debug "Done creating #{file}"
  
  @tags      = nil   # save some memory by clearing the tag list
  @objects   = nil
  @functions = nil
  @doors     = nil
  @rooms     = nil 

  if @map.kind_of?(FXMap)
    @map.filename   = file.sub(/\.t$/i, '.map')
    @map.options['Location Description'] = true
    @map.window.show
  end
end

Instance Attribute Details

#doors ⇒ Object (readonly)

Returns the value of attribute doors.



220
221
222
 
# File 'lib/IFMapper/MapReader.rb', line 220

def doors
  @doors
end

#functions ⇒ Object (readonly)

Returns the value of attribute functions.



220
221
222
 
# File 'lib/IFMapper/MapReader.rb', line 220

def functions
  @functions
end

#include_dirs ⇒ Object (readonly)

Returns the value of attribute include_dirs.



221
222
223
 
# File 'lib/IFMapper/MapReader.rb', line 221

def include_dirs
  @include_dirs
end

#map ⇒ Object (readonly)

Returns the value of attribute map.



220
221
222
 
# File 'lib/IFMapper/MapReader.rb', line 220

def map
  @map
end

#rooms ⇒ Object (readonly)

Returns the value of attribute rooms.



220
221
222
 
# File 'lib/IFMapper/MapReader.rb', line 220

def rooms
  @rooms
end

#tags ⇒ Object (readonly)

Returns the value of attribute tags.



220
221
222
 
# File 'lib/IFMapper/MapReader.rb', line 220

def tags
  @tags
end

Instance Method Details

#best_dir(r, dirA) ⇒ Object 



269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
 
# File 'lib/IFMapper/MapReader.rb', line 269

def best_dir(r, dirA)
  start = (dirA + 4) % 8

  dirs = [
    start,
    (start - 1) % 8,
    (start + 1) % 8,
    (start - 2) % 8,
    (start + 2) % 8,
    (start - 3) % 8,
    (start + 3) % 8,
    dirA
  ]

  dirs.each { |d|
    return d if not r.exits[d]
  }

  return nil
end

#choose_dir(a, b, go = nil, exitB = nil) ⇒ Object

Choose a direction to represent up/down/in/out.



495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
 
# File 'lib/IFMapper/MapReader.rb', line 495

def choose_dir(a, b, go = nil, exitB = nil)
  if go
    rgo = go % 2 == 0? go - 1 : go + 1
    # First, check if room already has exit moving towards other room
    a.exits.each_with_index { |e, idx|
  next if not e
  roomA = e.roomA
  roomB = e.roomB
  if roomA == a and roomB == b
 e.exitAtext = go
 return idx
  elsif roomB == a and roomA == b
 e.exitBtext = go
 return idx
  end
    }
  end

  # We prefer directions that travel less... so we need to figure
  # out where we start from...
  if b
    x = b.x
    y = b.y
  else
    x = a.x
    y = a.y
  end
  if exitB
    dx, dy = Room::DIR_TO_VECTOR[exitB]
    x += dx
    y += dy
  end

  # No such luck... Pick a direction.
  best = nil
  bestscore = nil

  DIRLIST.each { |dir|
    # We prefer straight directions to diagonal ones
    inc   = dir % 2 == 1 ? 100 : 140
    score = 1000
    # We prefer directions where both that dir and the opposite side
    # are empty.
    if (not a[dir]) or a[dir].stub?
  score += inc
  score += 4 if a[dir] #attaching to stubs is better
    end
#       rdir  = (dir + 4) % 8
#       score += 1   unless a[rdir]

    # Measure distance for that exit, we prefer shorter
    # paths
    dx, dy = Room::DIR_TO_VECTOR[dir]
    dx = (a.x + dx) - x
    dy = (a.y + dy) - y
    d = dx * dx + dy * dy
    score -= d
    next if bestscore and score <= bestscore
    bestscore = score
    best = dir
  }

  if not bestscore
    raise "No free exit for choose_dir"
  end

  return best
end

#compact ⇒ Object

Try to move rooms around to make map smaller.



778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
 
# File 'lib/IFMapper/MapReader.rb', line 778

def compact
  # First, verify all one-exit rooms lie next to its opposite room.
  sect  = @map.sections[@map.section]
  rooms = sect.rooms.find_all { |r| r.num_exits == 1 }

  rooms.each { |a|
    c = a.exits.find { |e| e != nil }
    b = c.opposite(a)

    dx = (a.x - b.x).abs
    dy = (a.y - b.y).abs
    next if dx <= 1 and dy <= 1

    x, y = [b.x, b.y]
    dirB = b.exits.index(c)

    dx, dy = Room::DIR_TO_VECTOR[dirB]
    x += dx
    y += dy

    dirA = a.exits.index(c)
    dx, dy = Room::DIR_TO_VECTOR[dirA]
    # Check if exits are complementary.  If not, we need to move room
    # again.
    if x + dx != b.x or y + dy != b.y
  x -= dx
  y -= dy
    end
    next if x == a.x and y == a.y

    # Place room here.  Check if filled.
    if sect.free?(x, y)
  a.x, a.y = x, y
    else
  if dx != 0
 dy = 0
  end
  sect.shift(x, y, -dx, -dy)
  a.x, a.y = x, y
    end
  }
end

#create ⇒ Object

Create all the stuff we found



824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
 
# File 'lib/IFMapper/MapReader.rb', line 824

def create
  @rooms = @rooms.sort_by { |r| r.num_exits }
  @rooms.reverse!

  @rooms.each { |r| 
    @tabs = 0
    min, max = @map.sections[@map.section].min_max_rooms
    create_room(r, max[0] + 2, 0)
  }
  @rooms = []

  @objects.delete_if { |obj| obj.scenery }

  # Add objects to rooms
  @objects.each { |obj|
    obj.location.each { |loc|
  r = @tags[loc]
  while r and not r.kind_of?(Room)
 r = @tags[ r.location[0] ]
  end
  next unless r
  r.objects << obj.name + "\n"
    }
  }
end

#create_map(file) ⇒ Object 



850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
 
# File 'lib/IFMapper/MapReader.rb', line 850

def create_map(file)
  read_file(file)

  puts "Rooms: #{@rooms.size}"
  puts "Doors: #{@doors.size}"
  puts "Objects: #{@objects.size}"

  begin
    resolve_exits
    create
    compact
  rescue => e
    puts e
    puts e.backtrace
    raise
  end
end

#create_room(r, x, y, dx = 2, dy = 0) ⇒ Object 



616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
 
# File 'lib/IFMapper/MapReader.rb', line 616

def create_room(r, x, y, dx = 2, dy = 0)
  return @tags[r.tag] if @tags[r.tag].kind_of?(Room)

  debug "+++ CREATE ROOM #{r.name} (#{x},#{y}) TAG:#{r.tag}"
  from, = make_room(r, x, y, dx, dy)

  r.exits[0,8].each_with_index { |to, exit|
    next unless to

    debug "#{r.name} EXIT:#{exit} points to #{to}"

    go = c = nil

    if to.kind_of?(MapOneWay)
  dx, dy = Room::DIR_TO_VECTOR[exit]
  x = from.x + dx
  y = from.y + dy
  @tabs += 1
  create_room(to.room, x, y, dx, dy)
  @tabs -= 1
  next
    elsif to.kind_of?(MapSpecialExit)
  go = to.go
  to = to.to
    end

    b = to


    dir  = exit
    type = 0

    # If exit leads to an enterable object, find out where does that
    # enterable object lead to.
    if to.kind_of?(MapObject)
  rooms = to.enterable
  rooms.each { |room|
 next if room == r
 to = b = @tags[room]
 break
  }
  # Skip it if we are still an object.  This means we are just
  # a container, like the phone booth in the Fate game demo.
  next if to.kind_of?(MapObject)
    end

    odir = nil
    if b.kind_of?(MapRoom)
  odir = b.exits.rindex(r.tag)
  if not odir
 b.exits[0,8].each_with_index { |e, idx|
   next if not e
   if (e.kind_of?(MapOneWay) and e.room == r) or
(e.kind_of?(MapSpecialExit) and e.to == r)
     odir = idx
     break
   end
 }
  end
    elsif b.kind_of?(MapDoor)
  t = b.location.find { |t| t != r.tag }
  other = @rooms.find { |x| x.tag == t }
  # other = @tags[t]
  if other
 other.exits.each_with_index { |d, idx|
   next if not d
   if d == b or d == r.tag or 
(d.kind_of?(MapOneWay) and d.room == r) or
(d.kind_of?(MapSpecialExit) and (d.to == b or d == r.tag))
     odir = idx
     break
   end
 }
  end
    end 
    odir = (dir + 4) % 8 if not odir

    if to.kind_of?(MapRoom) or to.kind_of?(MapDoor)
  dx, dy = Room::DIR_TO_VECTOR[dir]
  x = from.x + dx
  y = from.y + dy
  @tabs += 1
  to, type = get_exit(r, from, to, x, y, dx, dy)
  @tabs -= 1
  next if not to
    end


#       b = @rooms.find { |r2| r2.tag == tag }
#       odir = nil
#       odir = b.exits.rindex(r.tag) if b
#       odir = (dir + 4) % 8 if not odir

    if from[dir]
  c = from[dir]
  if to.exits.rindex(c) and c.roomB == from
 debug "LINK TRAVELLED BOTH"
 c.dir = Connection::BOTH
 c.exitBtext = go if go
 next
  else
 debug "#{exit} FROM #{from}->#{to} BLOCKED DIR: #{dir}"
 shift_link(from, dir)
  end
    end

    # Check we don't have a connection already
    if to[odir]
  c = to[odir]

  # We need to change odir to something else
  rgo = 0
  if go
 rgo = go % 2 == 0? go - 1 : go + 1
  end

  # First, check if we have a dangling one-way link going to->from
  # If we do, we use it.
  c = oneway_link?(from, to)
  if not c
 odir = choose_dir(to, from, rgo, dir)
  else
 debug "FOUND LINK #{c} -- filling it."
 idx = from.exits.index(c)
 from[idx] = nil
 from[dir] = c
 c.dir = Connection::BOTH
 c.exitBtext = go if go
  end
    else
  debug "to[odir] empty."
  # First, check if we have a dangling one-way link going to->from
  # If we do, we use it.
  c = oneway_link?(to, from)
  if c
 debug "FOUND LINK #{c} -- filling it."
 idx = from.exits.index(c)
 from[idx] = nil
 from[dir] = c
 c.dir = Connection::BOTH
 c.exitBtext = go if go
  end
    end

    if not c
  debug "NEW LINK #{from} #{dir} to #{to} #{odir}"
  begin
 c     = @map.new_connection(from, dir, to, odir)
 c.exitAtext = go if go
 c.dir = Connection::AtoB
 c.type = type
  rescue Section::ConnectionError
  end
    end
  }

  return from
end

#debug(*x) ⇒ Object 



53
54
55
56
57
 
# File 'lib/IFMapper/MapReader.rb', line 53

def debug(*x)
  return unless @@debug
  $stdout.puts x
  $stdout.flush
end

#get_exit(r, from, to, x, y, dx = 1, dy = 0) ⇒ Object 



565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
 
# File 'lib/IFMapper/MapReader.rb', line 565

def get_exit(r, from, to, x, y, dx = 1, dy = 0 )
  elem = @tags[to.tag]
  if elem.kind_of?(MapRoom)
    dirB = has_exit_to?(to, r)
    if dirB
  dbx, dby = Room::DIR_TO_VECTOR[dirB]
  if x + dbx != from.x or y + dby != from.y
 x -= dbx
 y -= dby
  end
    end

    room = create_room(to, x, y, dx, dy)
    return [room, Connection::FREE]
  elsif elem.kind_of?(MapDoor)
    if elem.connector
  type = Connection::FREE
    elsif elem.locked
  type = Connection::LOCKED_DOOR
    else
  type = Connection::CLOSED_DOOR
    end

    # Okay, connecting room is missing.  Check door's locations property
    elem.location.each { |tag|
  next if @tags[tag] == from
  @rooms.each { |o|
 next if o.tag != tag
 res = create_room( o, x, y, dx, dy )
 return [ res, type ]
  }
    }
    
#       @rooms.each { |o|
#   next if @tags[o.tag] == from
#   o.exits.each { |e|
#     next unless e
#     if @tags[e] == elem
#       res = create_room( o, x, y, dx, dy )
#       return [ res, type ]
#     end
#   }
#       }

    $stderr.puts "No room for door #{to.name}: #{to}"
    return [nil, nil]
  else
    return [elem, Connection::FREE]
  end
end

#has_exit_to?(a, b) ⇒ Boolean

Returns:

  • (Boolean) 


290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
 
# File 'lib/IFMapper/MapReader.rb', line 290

def has_exit_to?(a, b)
  idx = a.exits.rindex(b)
  return idx if idx
  a.exits.each_with_index { |e, idx|
    next unless e
    if e.kind_of?(MapSpecialExit)
  e = e.to
    elsif e.kind_of?(MapObject)
  e.enterable.each { |x|
 return idx if @tags[x] == b
  }
    end
    case e
    when MapDoor
  tag = e.location.find { |t| t != a.tag }
  e = @tags[tag]
  return idx if e == b
    when MapOneWay
  return idx if e.room == b
    else
  return idx if e == b
    end
  }
  return false
end

#make_room(to, x, y, dx = 1, dy = 0) ⇒ Object 



194
195
196
197
198
199
200
201
202
203
204
205
206
207
 
# File 'lib/IFMapper/MapReader.rb', line 194

def make_room(to, x, y, dx = 1, dy = 0)
  if not @map.free?(x, y)
    @map.shift(x, y, dx, dy)
  end
  room = @map.new_room(x, y)
  room.name = to.name
  desc = to.desc.to_s
  desc.gsub!(/[\t\n]/, ' ')
  desc.squeeze!(' ')
  room.desc     = unquote(desc)
  room.darkness = !to.light
  @tags[to.tag] = room
  return room
end

#new_door(loc = nil) ⇒ Object 



173
174
175
176
177
178
179
180
 
# File 'lib/IFMapper/MapReader.rb', line 173

def new_door(loc = nil)
  @obj = @tags[@tag] || MapDoor.new
  @obj.tag  = @tag
  @obj.name = @name || @tag
  @obj.location << loc if loc
  @tags[@tag] = @obj
  @doors << @obj
end

#new_obj(loc = nil, klass = MapObject) ⇒ Object 



210
211
212
213
214
215
216
217
 
# File 'lib/IFMapper/MapReader.rb', line 210

def new_obj(loc = nil, klass = MapObject)
  debug "+++ OBJECT #@name"
  @obj = klass.new(loc)
  @obj.tag  = @tag
  @obj.name = @name # || @tag
  @tags[@tag] = @obj
  @objects << @obj
end

#new_room(klass = MapRoom) ⇒ Object 



184
185
186
187
188
189
190
191
192
 
# File 'lib/IFMapper/MapReader.rb', line 184

def new_room(klass = MapRoom)
  # We assume we are a room (albeit we could be an obj)
  @room = klass.new
  @room.tag   = @tag
  @room.name  = @name || @tag
  @room.desc  = ''
  @tags[@tag] = @room
  @rooms << @room
end

#oneway_link?(a, b) ⇒ Boolean

Returns:

  • (Boolean) 


480
481
482
483
484
485
486
487
488
489
490
491
 
# File 'lib/IFMapper/MapReader.rb', line 480

def oneway_link?(a, b)
  # First, check if room already has exit moving towards other room
  a.exits.each_with_index { |e, idx|
    next if not e or e.dir != Connection::AtoB
    roomA = e.roomA
    roomB = e.roomB
    if roomA == a and roomB == b
  return e
    end
  }
  return nil
end

#properties ⇒ Object

Bring up the properties window, to allow user to change settings



227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
 
# File 'lib/IFMapper/MapReader.rb', line 227

def properties
  decor = DECOR_TITLE|DECOR_BORDER

  dlg = FXDialogBox.new( @map.window.parent, "Include Settings", decor )
  mainFrame = FXVerticalFrame.new(dlg,
        FRAME_SUNKEN|FRAME_THICK|
        LAYOUT_FILL_X|LAYOUT_FILL_Y)

  frame = FXHorizontalFrame.new(mainFrame, LAYOUT_SIDE_TOP|LAYOUT_FILL_X)

  FXLabel.new(frame, "Include Dirs: ", nil, 0, LAYOUT_FILL_X)
  inc = FXTextField.new(frame, 80, nil, 0, LAYOUT_FILL_ROW)
  inc.text = @include_dirs.join(SEP)

  buttons = FXHorizontalFrame.new(mainFrame, 
        LAYOUT_SIDE_BOTTOM|LAYOUT_FILL_X|
        PACK_UNIFORM_WIDTH)
  # Accept
  FXButton.new(buttons, "&Accept", nil, dlg, FXDialogBox::ID_ACCEPT,
 FRAME_RAISED|FRAME_THICK|LAYOUT_RIGHT|LAYOUT_CENTER_Y)
  
  # Cancel
  FXButton.new(buttons, "&Cancel", nil, dlg, FXDialogBox::ID_CANCEL,
 FRAME_RAISED|FRAME_THICK|LAYOUT_RIGHT|LAYOUT_CENTER_Y)
  if dlg.execute != 0
    @include_dirs = inc.text.split(SEP)
    return true
  end
  return false
end

#read_file(file) ⇒ Object 



261
262
263
264
265
266
267
 
# File 'lib/IFMapper/MapReader.rb', line 261

def read_file(file)
  debug "Start parsing #{file}"
  File.open(file) { |f|
    parse(f)
  }
  debug "Done parsing #{file}"
end

#resolve_exits ⇒ Object

Look for one way exits and add them to the proper room exit on the destination side. This is needed so that we properly count room exits and start mapping from rooms with more exits.

Also, resolve up/down/in/out exits into one of the proper 8 directions.



323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
 
# File 'lib/IFMapper/MapReader.rb', line 323

def resolve_exits

  if @tags[nil]
    raise "error"
  end

  #
  # First, we resolve tags to the corresponding Map* class.
  # If we deal with a MapDoor that is really a connector, we simplify and
  # just attach the destination room directly.
  # If we deal with a MapDoor with no matching other room, we remove. This
  # can happen in TADS games or if user just read a portion of the full map.
  #
  @rooms.each { |r|
    r.exits.each_with_index { |tag, idx|
  next unless tag
  to = @tags[tag]

  if to.kind_of?(MapDoor)
 if to.location.size == 1
   to = nil
 else
   if to.connector
     t = to.location.find { |t| t != r.tag }
     to = @tags[t]
   end
 end
  end

  if idx > 7
 # if Up/Down/In/Out exit and we have a similar exit
 # going in one direction, remove this exit
 if r.exits[0,8].index(to)
   r.exits[idx] = nil
   next
 end
  end

  if not to
 if not @functions.include?(tag)
   $stderr.puts "Exit to #{tag} not found, ignored."
 end
  end

  r.exits[idx] = to
    }
  }

  @rooms.each { |r|
    r.exits.each_with_index { |e, dirA|
  next if not e or e.kind_of?(MapOneWay)
  next if e == r

  ##
  # Do we have a special exit?
  if dirA > 7
 # First, get dirB and see if it is not a proper directional
 # exit
 dirB = nil
 if e.kind_of?(MapRoom)
   dirB = has_exit_to?(e, r)
 elsif e.kind_of?(MapDoor)
   t = e.location.find { |t| t != r.tag }
   to = @tags[t]
   if to
     to.exits.each_with_index { |d, idx|
if d == e or d == r
  dirB = idx
  break
end
     }
   end
 end

 dirB = 4 if not dirB or dirB > 7

 go = dirA - 7
 r.exits[dirA] = nil
 dirA = best_dir(r, dirB)
 next if not dirA
 r.exits[dirA] = MapSpecialExit.new(go, e)
  end


  ###############

  # we have a room or door exit

  if e.kind_of?(MapRoom)
 # check if destination room also has a connection towards us.
 next if has_exit_to?(e, r)

 dirB = best_dir(e, dirA)
 next unless dirB

 e.exits[dirB] = MapOneWay.new(r)

  elsif e.kind_of?(MapDoor)
 t = e.location.find { |t| t != r.tag }
 found = false
 to = @tags[t]
 if to
   to.exits.each_with_index { |d, idx|
     next if not d
     if d == e or d == r
found = true
break
     end
   }
 end

 if to and not found
   dirB = best_dir(to, dirA)
   next unless dirB
   to.exits[dirB] = MapOneWay.new(r)
 end
  elsif e.kind_of?(MapObject)
  else
 raise "Unknown exit type #{e.class}"
  end
    }
  }



end

#set_include_dirs ⇒ Object 



258
259
 
# File 'lib/IFMapper/MapReader.rb', line 258

def set_include_dirs
end

#shift_link(room, dir) ⇒ Object 



450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
 
# File 'lib/IFMapper/MapReader.rb', line 450

def shift_link(room, dir)
  idx = dir + 1
  idx = 0 if idx > 7
  while idx != dir
    break if not room[idx]
    idx += 1
    idx = 0 if idx > 7
  end
  if idx != dir
    room[idx] = room[dir]
    room[dir] = nil
    # get position of other room
    ox, oy = Room::DIR_TO_VECTOR[dir]
    c = room[idx]
    if c.roomA == room
  b = c.roomB
    else
  b = c.roomA
    end
    x, y = [b.x, b.y]
    x -= ox
    y -= oy
    dx, dy = Room::DIR_TO_VECTOR[idx]
    @map.shift(x, y, -dx, -dy)
  else
    # raise "Warning.  Cannot shift connection for #{room}."
  end
end