Class: TitleLevel

Inherits:
Object
  • Object
show all
Defined in:
lib/rubyhop.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(window) ⇒ TitleLevel

Returns a new instance of TitleLevel.



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# File 'lib/rubyhop.rb', line 187

def initialize window
  @window = window
  @rubyguy = Gosu::Image.new @window, get_my_file("rubyguy.png")

  create_image!

  # Add callback holders
  @continue_callbacks = []
  @quit_callbacks = []
end

Instance Attribute Details

#window ⇒ Object

Returns the value of attribute window.



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# File 'lib/rubyhop.rb', line 186

def window
  @window
end

Instance Method Details

#continue! ⇒ Object 



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# File 'lib/rubyhop.rb', line 216

def continue!
  @continue_callbacks.each { |c| c.call }
end

#create_image! ⇒ Object 



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# File 'lib/rubyhop.rb', line 198

def create_image!
  @msg = Gosu::Image.from_text @window,
                              "Stay alive by hopping!\n" +
                              "Press SPACE to hop!\n" +
                              "Press ESCAPE to close.",
                              Gosu::default_font_name, 24
  @msg_x = @window.width/2 - @msg.width/2
  @msg_y = @window.height * 2 / 3
end

#draw ⇒ Object 



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# File 'lib/rubyhop.rb', line 235

def draw
  c = Math.cos(@window.time*4)
  @rubyguy.draw_rot(((@window.width)/2), ((@window.height)/2 - 80), 1, 0,
                    0.5, 0.5, 1.0+c*0.1, 1.0+c*0.1)
  s = Math.sin @window.time
  @msg.draw_rot( ((@window.width)/2 + (100*(s)).to_i),
                  ((@window.height)/2 + 160 + s*s*s.abs*50),
                  1, s*5, 0.5, 0.5,
                  1.0+(0.1*s*s*s.abs), 1.0+(0.1*s*s*s.abs),
                  Gosu::Color::RED )
end

#on_continue(&block) ⇒ Object 



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# File 'lib/rubyhop.rb', line 208

def on_continue &block
  @continue_callbacks << block
end

#on_quit(&block) ⇒ Object 



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# File 'lib/rubyhop.rb', line 212

def on_quit &block
  @quit_callbacks << block
end

#quit! ⇒ Object 



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# File 'lib/rubyhop.rb', line 220

def quit!
  @quit_callbacks.each { |c| c.call }
end

#start! ⇒ Object 



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# File 'lib/rubyhop.rb', line 224

def start!
  create_image!
end

#update ⇒ Object 



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# File 'lib/rubyhop.rb', line 228

def update
  quit!     if @window.button_down? Gosu::KbEscape
  continue! if ( @window.button_down?(Gosu::KbSpace)  ||
                 @window.button_down?(Gosu::KbReturn) ||
                 @window.button_down?(Gosu::KbEnter)  )
end