Module: DXRuby::Tiled::TMXLoader

Defined in:
lib/dxruby_tiled/tmx_loader.rb

Class Method Summary collapse

Class Method Details

.animation_to_array(animation_element) ⇒ Object 



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# File 'lib/dxruby_tiled/tmx_loader.rb', line 159

def animation_to_array(animation_element)
  animations = []
  
  animation_element.each_element("frame") do |frame|
    animations.push({
      tileid:   frame.attribute("tileid"  ).to_s.to_i,
      duration: frame.attribute("duration").to_s.to_i
    })
  end
  
  animations
end

.element_to_hash(elm, attrs_i = [], attrs_f = [], attrs_b = []) ⇒ Object 



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# File 'lib/dxruby_tiled/tmx_loader.rb', line 20

def element_to_hash(elm, attrs_i = [], attrs_f = [], attrs_b = [])
  hash = {}
  
  elm.attributes.each_pair do |key, value|
    str = value.to_s
    if attrs_i.include?(key)
      hash[key.to_sym] = str.to_i
    elsif attrs_f.include?(key)
      hash[key.to_sym] = str.to_f
    elsif attrs_b.include?(key)
      hash[key.to_sym] = !!str && str != "0" && str != "false"
    else
      hash[key.to_sym] = str
    end
  end
  
  hash
end

.image_to_hash(image_element) ⇒ Object 



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# File 'lib/dxruby_tiled/tmx_loader.rb', line 97

def image_to_hash(image_element)
  hash = {}
  
  image_hash = element_to_hash(image_element, %w[width height])
  hash[:image]            = image_hash[:source] if image_hash.has_key?(:source)
  hash[:imagewidth]       = image_hash[:width ] if image_hash.has_key?(:width )
  hash[:imageheight]      = image_hash[:height] if image_hash.has_key?(:height)
  hash[:transparentcolor] = image_hash[:trans ] if image_hash.has_key?(:trans )
  
  hash
end

.layers_to_array(layers_parent_element) ⇒ Object 



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# File 'lib/dxruby_tiled/tmx_loader.rb', line 172

def layers_to_array(layers_parent_element)
  layers_array = []
  
  layers_parent_element.each_child do |layer_element|
    next unless layer_element.is_a?(REXML::Element)
    layer_hash = element_to_hash(layer_element,
      %w[x y width height offsetx offsety],
      %w[opacity],
      %w[visible]
    )
    layer_hash.merge!(properties_parent_to_hash(layer_element))
    
    case layer_element.name.to_s
    when "layer"
      layer_hash[:type] = "tilelayer"
      data = layer_element.get_elements("data").first
      data_hash = element_to_hash(data)
      layer_hash[:compression] = data_hash[:compression] if data_hash.has_key?(:compression)
      layer_hash[:encoding   ] = data_hash[:encoding   ] if data_hash.has_key?(:encoding   )
      chunks = data.get_elements("chunk")
      if chunks.empty?
        if layer_hash[:encoding] == "csv"
          layer_hash[:data] = data.text.strip.split(",").map(&:to_i)
        else
          layer_hash[:data] = data.text
        end
      else
        layer_hash[:chunks] = []
        chunks.each do |chunk|
          chunk_hash = element_to_hash(chunk, %w[x y width height])
          if layer_hash[:encoding] == "csv"
            chunk_hash[:data] = chunk.text.strip.split(",").map(&:to_i)
          else
            chunk_hash[:data] = chunk.text
          end
          layer_hash[:chunks].push(chunk_hash)
        end
      end
    when "objectgroup"
      layer_hash[:type] = "objectgroup"
      layer_hash.merge!(objectgroup_to_hash(layer_element))
    when "imagelayer"
      layer_hash[:type] = "imagelayer"
      layer_element.each_element("image") do |image_element|
        layer_hash.merge!(image_to_hash(image_element))
      end
    when "group"
      layer_hash[:type] = "group"
      layer_hash[:layers] = layers_to_array(layer_element)
    else
      next
    end
    layers_array.push(layer_hash)
  end
  
  layers_array
end

.load_tmx(tmxfile, encoding = Encoding::UTF_8, dir = nil) ⇒ Object 



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# File 'lib/dxruby_tiled/tmx_loader.rb', line 9

def load_tmx(tmxfile, encoding = Encoding::UTF_8, dir = nil)
  Map.new(
    TMXLoader.tmx_to_hash(TMXLoader.read_xmlfile(tmxfile, encoding)),
    dir || File.dirname(tmxfile)
  )
end

.object_to_hash(object_element) ⇒ Object 



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# File 'lib/dxruby_tiled/tmx_loader.rb', line 124

def object_to_hash(object_element)
  object_hash = { rotation: 0, visible: true }
  
  object_hash.merge!(element_to_hash(object_element,
    %w[id gid],
    %w[x y width height rotation opacity],
    %w[visible]
  ))
  object_hash.merge!(properties_parent_to_hash(object_element))
  object_hash[:ellipse] = true unless object_element.get_elements("ellipse").empty?
  object_hash[:point]   = true unless object_element.get_elements("point").empty?
  object_element.each_element("polygon") do |polygon_element|
    object_hash[:polygon] = polygon_element.attribute("points").to_s.split(" ").map do |point|
      x, y = point.split(",").map(&:to_f)
      { x: x, y: y }
    end
  end
  object_element.each_element("polyline") do |polyline_element|
    object_hash[:polyline] = polyline_element.attribute("points").to_s.split(" ").map do |point|
      x, y = point.split(",").map(&:to_f)
      { x: x, y: y }
    end
  end
  object_element.each_element("text") do |text_element|
    object_hash[:text] = element_to_hash(text_element,
      %w[pixelsize],
      %w[],
      %w[wrap bold italic underline strikeout kerning]
    )
    object_hash[:text][:text] = text_element.text
  end
  
  object_hash
end

.objectgroup_to_hash(objectgroup_element) ⇒ Object 



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# File 'lib/dxruby_tiled/tmx_loader.rb', line 109

def objectgroup_to_hash(objectgroup_element)
  objectgroup_hash = element_to_hash(objectgroup_element,
    %w[x y width height offsetx offsety],
    %w[opacity],
    %w[visible]
  )
  objectgroup_hash.merge!(properties_parent_to_hash(objectgroup_element))
  objectgroup_hash[:objects] = []
  objectgroup_element.each_element("object") do |object_element|
    objectgroup_hash[:objects].push(object_to_hash(object_element))
  end
  
  objectgroup_hash
end

.properties_parent_to_hash(element) ⇒ Object 



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# File 'lib/dxruby_tiled/tmx_loader.rb', line 39

def properties_parent_to_hash(element)
  properties_hash = { properties: {}, propertytypes: {} }
  
  element.each_element("properties") do |properties|
    properties.each_element_with_attribute("type") do |property|
      name  = property.attribute("name" ).to_s.to_sym
      type  = property.attribute("type" ).to_s
      value = property.attribute("value").to_s
      case type
      when "string", "color", "file"
        properties_hash[:properties][name] = value
      when "int"
        properties_hash[:properties][name] = value.to_i
      when "float"
        properties_hash[:properties][name] = value.to_f
      when "bool"
        properties_hash[:properties][name] = !!value && value != "0" && value != "false"
      end
      properties_hash[:propertytypes][name] = type
    end
  end
  
  properties_hash[:properties].empty? ? {} : properties_hash
end

.read_xmlfile(xmlfile, encoding = Encoding::UTF_8) ⇒ Object 



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# File 'lib/dxruby_tiled/tmx_loader.rb', line 16

def read_xmlfile(xmlfile, encoding = Encoding::UTF_8)
  REXML::Document.new(DXRuby::Tiled.read_file(xmlfile, encoding))
end

.tileset_to_hash(tileset_element) ⇒ Object 



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# File 'lib/dxruby_tiled/tmx_loader.rb', line 64

def tileset_to_hash(tileset_element)
  tileset_hash = element_to_hash(tileset_element,
    %w[firstgid tilewidth tileheight spacing margin tilecount columns]
  )
  tileset_hash.merge!(properties_parent_to_hash(tileset_element))
  tileset_element.each_element("tileoffset") do |tileoffset|
    tileset_hash[:tileoffset] = {
      x: tileoffset.attribute("x").to_s.to_i,
      y: tileoffset.attribute("y").to_s.to_i
    }
  end
  tileset_element.each_element("image") do |image_element|
    tileset_hash.merge!(image_to_hash(image_element))
  end
  tileset_hash[:tiles] = {}
  tileset_element.each_element("tile") do |tile_element|
    hash = element_to_hash(tile_element)
    tile_hash = { type: hash[:type] }
    tile_element.each_element("image") do |image_element|
      tile_hash.merge!(image_to_hash(image_element))
    end
    tile_element.each_element("objectgroup") do |objectgroup_element|
      tile_hash[:objectgroup] = objectgroup_to_hash(objectgroup_element)
    end
    tile_element.each_element("animation") do |animation_element|
      tile_hash[:animation] = animation_to_array(animation_element)
    end
    tileset_hash[:tiles][hash[:id]] = tile_hash
  end
  
  tileset_hash
end

.tmx_to_hash(tmx) ⇒ Object 



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# File 'lib/dxruby_tiled/tmx_loader.rb', line 230

def tmx_to_hash(tmx)
  map_element = tmx.root
  hash = element_to_hash(map_element,
    %w[width height tilewidth tileheight hexsidelength nextobjectid],
    %w[version],
    %w[]
  )
  hash.merge!(properties_parent_to_hash(map_element))
  hash[:tilesets] = []
  map_element.each_element("tileset") do |tileset_element|
    hash[:tilesets].push(tileset_to_hash(tileset_element))
  end
  hash[:layers] = layers_to_array(map_element)
  
  hash
end

.tsx_to_hash(tsx) ⇒ Object 



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# File 'lib/dxruby_tiled/tmx_loader.rb', line 247

def tsx_to_hash(tsx)
  hash = tileset_to_hash(tsx.root)
  
  hash
end

.tx_to_hash(tx) ⇒ Object 



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# File 'lib/dxruby_tiled/tmx_loader.rb', line 253

def tx_to_hash(tx)
  hash = {}
  
  tx.root.each_element("tileset") do |tileset_element|
    hash[:tileset] = element_to_hash(tileset_element,
      %w[firstgid],
      %w[],
      %w[]
    )
  end
  tx.root.each_element("object") do |object_element|
    hash[:object] = object_to_hash(object_element)
  end
  
  hash
end