Module: Doom::Render::RendererFactory

Defined in:
lib/doom/render/renderer_factory.rb

Constant Summary collapse

TYPES = 
i[classic zbuffer rasterizer raytracing].freeze
SWITCH_TYPES = 
i[classic rasterizer raytracing].freeze

Class Method Summary collapse

Class Method Details

.build(type, wad, map, textures, palette, colormap, flats, sprites = nil, animations = nil) ⇒ Object 



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# File 'lib/doom/render/renderer_factory.rb', line 11

def build(type, wad, map, textures, palette, colormap, flats, sprites = nil, animations = nil)
  klass = case normalize(type)
          when :classic then Renderer
          when :zbuffer then ZBufferRenderer
          when :rasterizer then HardwareRenderer
          when :raytracing then RayTracingRenderer
          end
  klass.new(wad, map, textures, palette, colormap, flats, sprites, animations)
end

.build_like(renderer, type) ⇒ Object 



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# File 'lib/doom/render/renderer_factory.rb', line 21

def build_like(renderer, type)
  build(type, renderer.wad, renderer.map, renderer.textures, renderer.palette,
        renderer.colormap, renderer.flats.values, renderer.sprites, renderer.animations)
end

.next_type(renderer) ⇒ Object 



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# File 'lib/doom/render/renderer_factory.rb', line 44

def next_type(renderer)
  current_index = SWITCH_TYPES.index(type_of(renderer)) || 0
  SWITCH_TYPES[(current_index + 1) % SWITCH_TYPES.size]
end

.normalize(type) ⇒ Object 



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# File 'lib/doom/render/renderer_factory.rb', line 26

def normalize(type)
  value = (type || :classic).to_sym
  unless TYPES.include?(value)
    raise ArgumentError,
          "unknown renderer #{type.inspect}; expected #{TYPES.join(' or ')}"
  end

  value
end

.type_of(renderer) ⇒ Object 



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# File 'lib/doom/render/renderer_factory.rb', line 36

def type_of(renderer)
  return :raytracing if renderer.is_a?(RayTracingRenderer)
  return :rasterizer if renderer.is_a?(HardwareRenderer)
  return :zbuffer if renderer.is_a?(ZBufferRenderer)

  :classic
end