Module: Draco::Scenes::InstanceMethods

Defined in:
lib/draco/scenes.rb

Overview

Internal: The plugin code for a Draco::World

Instance Method Summary collapse

Instance Method Details

#after_initialize ⇒ Object 



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# File 'lib/draco/scenes.rb', line 27

def after_initialize
  @scenes = {}

  scene_definitions.each do |name, klass|
    @scenes[name] = klass.new
  end

  @current_scene = default_scene
end

#before_tick(context) ⇒ Object 



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# File 'lib/draco/scenes.rb', line 37

def before_tick(context)
  super + @current_scene.systems.map do |system|
    entities = filter(system.filter)

    system.new(entities: entities, world: self)
  end
end

#default_scene ⇒ Object

Raises:



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# File 'lib/draco/scenes.rb', line 63

def default_scene
  defined = self.class.instance_variable_get(:@default_scene)
  raise UndefinedSceneError, "No scene defined with name #{defined.inspect}" unless @scenes[defined]

  @scenes[defined]
end

#filter(*components) ⇒ Object 



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# File 'lib/draco/scenes.rb', line 45

def filter(*components)
  super.merge(@current_scene.filter(*components))
end

#scene ⇒ Object 



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# File 'lib/draco/scenes.rb', line 53

def scene
  @current_scene
end

#scene=(name) ⇒ Object

Raises:



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# File 'lib/draco/scenes.rb', line 57

def scene=(name)
  raise UndefinedSceneError, "No scene defined with name #{name.inspect}" unless @scenes[name]

  @current_scene = @scenes[name]
end

#scene_definitions ⇒ Object 



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# File 'lib/draco/scenes.rb', line 70

def scene_definitions
  self.class.instance_variable_get(:@scene_definitions) || {}
end

#scenes ⇒ Object 



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# File 'lib/draco/scenes.rb', line 49

def scenes
  @scenes
end