Class: MCDotArtMaker::TextureLoader

Inherits:
Object
  • Object
show all
Defined in:
lib/mc_dot_art_maker/texture_loader.rb

Constant Summary collapse

TEXTURE_DIR = 
File.join(File.dirname(__FILE__),"textures")
TEXTURE_TMP_DIR = 
File.join(TEXTURE_DIR,"tmp")

Instance Method Summary collapse

Constructor Details

#initialize(jar = nil) ⇒ TextureLoader 



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# File 'lib/mc_dot_art_maker/texture_loader.rb', line 11

def initialize(jar = nil)
  @jar = jar || jars.last
end

Instance Method Details

#exist?(filename) ⇒ Boolean 



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# File 'lib/mc_dot_art_maker/texture_loader.rb', line 48

def exist?(filename)
  filename = filename + '.png' if File.extname(filename).empty?
  [
    Dir.exist?(TEXTURE_DIR),
    File.exist?(File.join(TEXTURE_DIR,filename))
  ].all?
end

#load_texture(filename) ⇒ Object 



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# File 'lib/mc_dot_art_maker/texture_loader.rb', line 15

def load_texture(filename)
  filename = filename + '.png' if File.extname(filename).empty?

  confirm = [
    Dir.exist?(TEXTURE_DIR),
    File.exist?(File.join(TEXTURE_DIR,filename))
  ]

  unless confirm.all?
    # copy jar and extract
    jar_basename = File.basename(@jar)

    Dir.mkdir(TEXTURE_DIR) unless Dir.exist?(TEXTURE_DIR)
    Dir.mkdir(TEXTURE_TMP_DIR) unless Dir.exist?(TEXTURE_TMP_DIR)

    jar_file_path = File.join(TEXTURE_TMP_DIR,jar_basename)
    FileUtils.cp(@jar,jar_file_path) if Dir.glob(File.join(TEXTURE_TMP_DIR,'*.jar')).empty?

    Zip::File.open(jar_file_path) do |zip|
      zip.each do |entry|
        if md = /\Aassets\/minecraft\/textures\/blocks\/#{filename}\Z/.match(entry.to_s)
          entry.extract(File.join(TEXTURE_DIR, filename))
          return Magick::ImageList.new(File.join(TEXTURE_DIR,filename)).first
        end
      end
    end

    raise(TextureNotFoundError,"Texture \"#{filename}\" was not found") unless confirm.all?
  end

  Magick::ImageList.new(File.join(TEXTURE_DIR,filename)).first
end