Class: IFMWriter

Inherits:
Object
  • Object
show all
Defined in:
lib/IFMapper/IFMWriter.rb

Constant Summary collapse

EXIT_TEXT = 
[
 '',
 'up',
 'down',
 'in',
 'out'
]

Instance Method Summary collapse

Constructor Details

#initialize(map, file) ⇒ IFMWriter

Returns a new instance of IFMWriter.



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# File 'lib/IFMapper/IFMWriter.rb', line 246

def initialize(map, file)
  @link  = nil
  @links = []
  @rooms = []
  @last_room = nil
  @tags  = []
  @elem  = {}
  @map   = map
  export(file)
end

Instance Method Details

#directions(c, a, b) ⇒ Object 



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# File 'lib/IFMapper/IFMWriter.rb', line 30

def directions(c, a, b)
  return if c.stub?

  @links << c
  if c.gpts.empty?
    # self connection
    if a == b
      idx = c.dirs[0]
    else
      # simple connection
      idx = a.next_to?(b)
    end
    dir = ' ' + Room::DIRECTIONS_ENGLISH[idx]
  else
    # complex path
    dir = ''
    pts = c.gpts.dup
    x = a.x
    y = a.y
    if c.roomA != a
	pts.reverse!
    end
    
    pts.each { |p|
	dx, dy = [ p[0] - x, p[1] - y ]
	idx = Room::vector_to_dir(dx, dy)
	dir += " #{Room::DIRECTIONS_ENGLISH[idx]}"
	x = p[0]
	y = p[1]
    }
    dx, dy = [ b.x - x, b.y - y ]
    idx = Room::vector_to_dir(dx, dy)
    dir += " #{Room::DIRECTIONS_ENGLISH[idx]}"
  end
  @f.print " dir#{dir}"

end

#export(file) ⇒ Object 



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# File 'lib/IFMapper/IFMWriter.rb', line 239

def export(file)
  @f = File.open(file, 'w')
  header
  sections
  @f.close
end

#get_tag(e, t) ⇒ Object 



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# File 'lib/IFMapper/IFMWriter.rb', line 68

def get_tag(e, t)
  return @elem[e] if @elem.has_key?(e)

  tag = t.dup

  if RUBY_VERSION < 1.9
    utf = Iconv.new( 'iso-8859-1', 'utf-8' )
    tag = utf.iconv( tag )
  else
    tag = tag.encode( 'utf-8', :invalid => :replace, 
                      :undef => :replace, :replace => '' )
  end

  tag.gsub!(/[\-\(\s,\.!'&"#$@\/\\\-\)]+/, '_')
  tag.gsub!(/__/, '')                  # remove reduntant __ repetitions
  tag.sub!(/^([\d]+)_?(.*)/, '\2\1')   # No numbers allowed at start of tag
  tagname = tag
  idx = 2
  while @tags.include?(tagname) or tagname.empty? or tagname.size == 1
    tagname = tag + '_' + idx.to_s
    idx += 1
  end
  @tags    << tagname
  @elem[e] = tagname
  return tagname
end

#header ⇒ Object 



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# File 'lib/IFMapper/IFMWriter.rb', line 219

def header
  @f.puts <<-"HEADER"
#
# IFM map for #{@map.name}
# Created by #{@map.creator}
# #{Time.now}
#
# Map created using the Interactive Fiction Mapper
# (C) 2005 - Gonzalo Garramuno
#

HEADER

  if @map.name.to_s != ''
    @f.puts "title \"#{@map.name}\";\n"
  end

end

#link(c) ⇒ Object 



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# File 'lib/IFMapper/IFMWriter.rb', line 16

def link(c)
  return if @links.include?(c) # already spit out
  return if c.stub?
  a = c.roomA
  return if not a
  b = c.roomB
  roomA = @elem[a]
  roomB = @elem[b]
  @f.puts
  @f.print "link #{roomA} to #{roomB}"
  directions(c, a, b)
  @f.print ";\n"
end

#nolink(a, b) ⇒ Object

hook up two rooms that are not linked



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# File 'lib/IFMapper/IFMWriter.rb', line 96

def nolink(a, b)
  x = a.x
  y = a.y
  # find free room exit in a
  exit = 0
  a.exits.each_with_index { |e, idx|
    next if e
    exit = idx
    break
  }
  dir = Room::DIRECTIONS_ENGLISH[exit]
  dx, dy = Room::DIR_TO_VECTOR[exit]
  x += dx
  y += dy
  while x != b.x or y != b.y
    dx = dy = 0
    if b.x > x
	dx = 1
    elsif b.x < x
	dx = -1
    end
    if b.y > y
	dy = 1
    elsif b.y < y
	dy = -1
    end
    idx  = Room::vector_to_dir(dx, dy)
    dir += " #{Room::DIRECTIONS[idx]}"
    x += dx
    y += dy
  end

  @f.print " dir #{dir} nolink"
end

#room(r) ⇒ Object 



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# File 'lib/IFMapper/IFMWriter.rb', line 131

def room(r)
  return if @rooms.include?(r) or r == nil
  @rooms << r
  tag = get_tag(r, r.name)

  @f.puts 
  @f.print "room \"#{r.name}\" tag #{tag}"
  if not @link.empty?
    if @link[3]
	nolink(@last_room, r)
    else
	directions(@link[0], @link[1], @link[2])
	if @last_room and @link[1] != @last_room
 tag = get_tag(@link[1], @link[1].name)
 @f.print " from #{tag}"
	end
      if @link[0].exitAtext != 0
        dir = EXIT_TEXT[@link[0].exitAtext]
        @f.print " go #{dir}"
      end

      if @link[0].dir == Connection::AtoB
        @f.print " oneway"
      end

      if @link[0].type == Connection::SPECIAL
        @f.print " style special"
      end

    end
  end
  @f.print ";\n"
  @last_room = r

  objs = r.objects.split("\n")
  objs.each { |obj|
    tag = get_tag(obj, obj)      
    @f.puts "\titem \"#{obj}\" tag #{tag};"
  }
  tasks = r.tasks.split("\n")
  tasks.each { |task|
    tag = get_tag(task, task)
    @f.puts "\ttask \"#{task}\" tag #{tag};"
  }

  r.exits.each { |c|
    next if not c or @links.include?(c)
    if c.roomA == c.roomB
	# self-link
	link(c)
	next
    end
    if r == c.roomA
	@link = [c, c.roomA, c.roomB]
	room(c.roomB) # Recurse along this branch...
    else
	@link = [c, c.roomB, c.roomA]
	room(c.roomA) # Recurse along this branch...
    end
  }
end

#sections ⇒ Object 



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# File 'lib/IFMapper/IFMWriter.rb', line 193

def sections
  old_section = @map.section
  @map.sections.each_with_index { |section, idx|
    @f.puts
    @f.puts '#' * 79
    @f.puts
    if section.name.to_s == ''
	if @map.sections.size > 1
 @f.puts "map \"Section #{idx+1}\";"
	end
    else
	@f.puts "map \"#{section.name}\";"
    end
    @map.section = idx
    @link = []
    section.rooms.each { |r|
	room(r)
	@link << 'nolink'
    }
    section.connections.each { |c|
	link(c)
    }
  }
  @map.section = old_section
end