Class: Asteroids::MenuState

Inherits:
GameState show all
Includes:
Singleton
Defined in:
lib/asteroids/states/menu_state.rb

Instance Method Summary collapse

Methods inherited from GameState

#enter, #leave, #needs_redraw?, switch, #update

Constructor Details

#initialize ⇒ MenuState

Returns a new instance of MenuState.



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# File 'lib/asteroids/states/menu_state.rb', line 7

def initialize
  @title = Gosu::Image.from_text($window, "Asteroids",
    Utils.get_font_path('victor-pixel.ttf'), 100)
  @background = Gosu::Image.new($window,
    Utils.get_image_path('background.png'), false)
  @menu = Menu.new
  @menu.add_item("New Game", lambda { GameState.switch(PlayState.new) },
    true)
  @menu.add_item("Load Game", lambda { puts 'load game' }, false)
  @menu.add_item("Exit", lambda { $window.close }, false)
end

Instance Method Details

#button_down(id) ⇒ Object 



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# File 'lib/asteroids/states/menu_state.rb', line 28

def button_down(id)
  if id == Gosu::KbDown
    @menu.select_item(:+)
  end
  if id == Gosu::KbUp
    @menu.select_item(:-)
  end
  if id == Gosu::KbReturn
    @menu.confirm
  end
end

#draw ⇒ Object 



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# File 'lib/asteroids/states/menu_state.rb', line 19

def draw
  @background.draw(0, 0, 0)
  @title.draw(
    $window.width / 2 - @title.width / 2,
    $window.height / 5 - @title.height / 5,
    10)
  @menu.draw
end