Class: SwfRuby::SpriteDumper

Inherits:
Object
  • Object
show all
Defined in:
lib/swf_ruby/sprite_dumper.rb

Overview

DefineSpriteをダンプするクラス.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ SpriteDumper

初期化.



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# File 'lib/swf_ruby/sprite_dumper.rb', line 12

def initialize
  @sprite_id = nil
  @frame_count = nil
  @tag = nil
  @tags_addresses = nil
end

Instance Attribute Details

#frame_count ⇒ Object (readonly)

Returns the value of attribute frame_count.



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# File 'lib/swf_ruby/sprite_dumper.rb', line 7

def frame_count
  @frame_count
end

#sprite_id ⇒ Object (readonly)

Returns the value of attribute sprite_id.



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# File 'lib/swf_ruby/sprite_dumper.rb', line 6

def sprite_id
  @sprite_id
end

#tags ⇒ Object (readonly)

Returns the value of attribute tags.



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# File 'lib/swf_ruby/sprite_dumper.rb', line 8

def tags
  @tags
end

#tags_addresses ⇒ Object (readonly)

Returns the value of attribute tags_addresses.



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# File 'lib/swf_ruby/sprite_dumper.rb', line 9

def tags_addresses
  @tags_addresses
end

Instance Method Details

#dump(tag) ⇒ Object

ダンプして構造をインスタンス変数に格納.



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# File 'lib/swf_ruby/sprite_dumper.rb', line 20

def dump(tag)
  data = tag.data
  @sprite_id = data[0, 2].unpack("v").first
  @frame_count = data[2, 2].unpack("v").first
  @tags = []
  @tags_addresses = []
  sprite_header_length = (tag.long_header) ? 6 : 2
  tag_index = 4
  while tag_index < data.length
    @tags_addresses << tag_index + sprite_header_length
    tag = Swf::Tag.new(data[tag_index..-1])
    tag_index += tag.length
    @tags << tag
  end
  self
end