Class: DXRuby::Tiled::TileLayer

Inherits:
Layer
  • Object
show all
Defined in:
lib/dxruby_tiled/tilelayer.rb

Instance Attribute Summary collapse

Attributes inherited from Layer

#name, #offset_x, #offset_y, #opacity, #properties, #visible, #z_index

Instance Method Summary collapse

Methods inherited from Layer

create

Constructor Details

#initialize(data, map) ⇒ TileLayer

Returns a new instance of TileLayer.



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# File 'lib/dxruby_tiled/tilelayer.rb', line 6

def initialize(data, map)
  super
  if data[:chunks]
    @x1 = data[:chunks].map {|chunk| chunk[:x] }.min
    @y1 = data[:chunks].map {|chunk| chunk[:y] }.min
    @x2 = data[:chunks].map {|chunk| chunk[:x] + chunk[:width ] }.max
    @y2 = data[:chunks].map {|chunk| chunk[:y] + chunk[:height] }.max
    @data = Array.new((@x2 - @x1) * (@y2 - @y1), 0)
    data[:chunks].each do |chunk|
      get_data(chunk[:data], data[:encoding], data[:compression]).each_with_index do |d, i|
        x, y = chunk[:x] + i % chunk[:width] - @x1, chunk[:y] + i / chunk[:width] - @y1
        @data[y * (@x2 - @x1) + x] = d
      end
    end
  else
    @x1 = data[:startx] || 0
    @y1 = data[:starty] || 0
    @x2 = @x1 + (data[:width ] || map.width )
    @y2 = @y1 + (data[:height] || map.height)
    @data = get_data(data[:data], data[:encoding], data[:compression])
  end
  @startx = @x1
  @starty = @y1
  @width  = @x2 - @x1
  @height = @y2 - @y1
  @tile_width  = map.tile_width
  @tile_height = map.tile_height
  @renderorder_x = map.renderorder_x
  @renderorder_y = map.renderorder_y
  @render_target = DXRuby::RenderTarget.new(DXRuby::Window.width, DXRuby::Window.height)
  @tilesets = map.tilesets
  
  self.extend LoopTileLayer if map.loop
end

Instance Attribute Details

#height ⇒ Object (readonly)

Returns the value of attribute height.



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# File 'lib/dxruby_tiled/tilelayer.rb', line 4

def height
  @height
end

#startx ⇒ Object (readonly)

Returns the value of attribute startx.



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# File 'lib/dxruby_tiled/tilelayer.rb', line 4

def startx
  @startx
end

#starty ⇒ Object (readonly)

Returns the value of attribute starty.



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# File 'lib/dxruby_tiled/tilelayer.rb', line 4

def starty
  @starty
end

#width ⇒ Object (readonly)

Returns the value of attribute width.



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# File 'lib/dxruby_tiled/tilelayer.rb', line 4

def width
  @width
end

Instance Method Details

#[](x, y) ⇒ Object 



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# File 'lib/dxruby_tiled/tilelayer.rb', line 41

def [](x, y)
  x < @x1 || x >= @x2 || y < @y1 || y >= @y2 ?
    0 : @data[(y - @y1) * @width + x - @x1]
end

#[]=(x, y, value) ⇒ Object 



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# File 'lib/dxruby_tiled/tilelayer.rb', line 46

def []=(x, y, value)
  return if x < @x1 || x >= @x2 || y < @y1 || y >= @y2
  @data[(y - @y1) * @width + x - @x1] = value
end

#at(pos_x, pos_y) ⇒ Object 



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# File 'lib/dxruby_tiled/tilelayer.rb', line 56

def at(pos_x, pos_y)
  x, y = xy_at(pos_x, pos_y)
  self[x, y]
end

#change_at(pos_x, pos_y, value) ⇒ Object 



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# File 'lib/dxruby_tiled/tilelayer.rb', line 61

def change_at(pos_x, pos_y, value)
  x, y = xy_at(pos_x, pos_y)
  self[x, y] = value
end

#include?(x, y) ⇒ Boolean Also known as: member?

Returns:

  • (Boolean) 


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# File 'lib/dxruby_tiled/tilelayer.rb', line 51

def include?(x, y)
  x >= @x1 && x < @x2 && y >= @y1 && y < @y2
end

#render(pos_x, pos_y, target = DXRuby::Window, z = 0, offset_x = 0, offset_y = 0, opacity = 1.0) ⇒ Object Also known as: draw 



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# File 'lib/dxruby_tiled/tilelayer.rb', line 70

def render(pos_x, pos_y, target = DXRuby::Window, z = 0, offset_x = 0, offset_y = 0, opacity = 1.0)
  unless @render_target.width == target.width && @render_target.height == target.height
    @render_target.resize(target.width, target.height)
  end
end

#tile_at(pos_x, pos_y) ⇒ Object 



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# File 'lib/dxruby_tiled/tilelayer.rb', line 66

def tile_at(pos_x, pos_y)
  @tilesets[at(pos_x, pos_y)]
end