Class: Metro::FadeTransitionScene

Inherits:
TransitionScene show all
Defined in:
lib/metro/transitions/fade_transition_scene.rb

Constant Summary

Constants included from Units

Units::Bounds

Instance Attribute Summary

Attributes inherited from TransitionScene

#next_scene, #options, #previous_scene

Attributes inherited from Scene

#window

Instance Method Summary collapse

Methods inherited from TransitionScene

#prepare_transition_from, #prepare_transition_to

Methods inherited from Scene

#_prepare_transition, #actor, #add_actors_to_scene, #after, after, #after_initialize, after_intervals, #base_draw, #base_update, #draw, #drawers, #enqueue, hierarchy, inherited, #initialize, metro_name, #notification, #prepare_transition_from, #prepare_transition_to, #register_actor, #register_actors!, #register_after_intervals!, #register_animations!, #register_events!, #register_events_for_target, scene_name, #scene_name, scenes, #state, #to_hash, #to_s, #transition_to, #update, #updaters

Methods included from SceneView

included, #save_view, #view, #view_content, #view_name

Methods included from HasAnimations

#animate, included

Methods included from HasEvents

included

Methods included from Draws

included

Constructor Details

This class inherits a constructor from Metro::Scene

Instance Method Details

#color_from_options(position) ⇒ Object 



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# File 'lib/metro/transitions/fade_transition_scene.rb', line 57

def color_from_options(position)
  if options[position]
    if options[position][:color]
      Gosu::Color.new options[position][:color]
    end
  end
end

#default_final_color ⇒ Object 



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# File 'lib/metro/transitions/fade_transition_scene.rb', line 53

def default_final_color
  Gosu::Color.new "rgb(0,0,0)"
end

#default_interval ⇒ Object 



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# File 'lib/metro/transitions/fade_transition_scene.rb', line 29

def default_interval
  60
end

#default_starting_color ⇒ Object 



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# File 'lib/metro/transitions/fade_transition_scene.rb', line 41

def default_starting_color
  Gosu::Color.new "rgb(255,255,255)"
end

#final_color ⇒ Object 



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# File 'lib/metro/transitions/fade_transition_scene.rb', line 45

def final_color
  options_final_color || default_final_color
end

#interval ⇒ Object 



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# File 'lib/metro/transitions/fade_transition_scene.rb', line 25

def interval
  options[:interval] || default_interval
end

#options_final_color ⇒ Object 



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# File 'lib/metro/transitions/fade_transition_scene.rb', line 49

def options_final_color
  color_from_options(:to)
end

#options_starting_color ⇒ Object 



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# File 'lib/metro/transitions/fade_transition_scene.rb', line 37

def options_starting_color
  color_from_options(:from)
end

#show ⇒ Object

When the scene is shown set up the starting color for the rectangle and queue the animation to transition the color to the final color.



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# File 'lib/metro/transitions/fade_transition_scene.rb', line 10

def show
  rectangle.color = starting_color

  color = final_color

  animate :rectangle, to: { red: color.red,
                            green: color.green,
                            blue: color.blue,
                            alpha: color.alpha },
                      interval: interval do

    transition_to next_scene
  end
end

#starting_color ⇒ Object 



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# File 'lib/metro/transitions/fade_transition_scene.rb', line 33

def starting_color
  options_starting_color || default_starting_color
end