Class: LampWithGenie

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

Defined Under Namespace

Classes: Genie, Lamp

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(window) ⇒ LampWithGenie

Returns a new instance of LampWithGenie.



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# File 'lib/lamp_with_genie.rb', line 92

def initialize(window)
  flipped = rand(2) == 0
  @lamp = Lamp.new(window, flipped)
  @genie = Genie.new(window, flipped, @lamp)
  x = if flipped
    rand(0..(window.width - @genie.width - @lamp.width))
  else
    rand(@genie.width..(window.width - @lamp.width))
  end
  @lamp.x = x
  @genie.x = flipped ? x + @lamp.width : x
  @window = window
end

Instance Attribute Details

#genie ⇒ Object (readonly)

Returns the value of attribute genie.



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# File 'lib/lamp_with_genie.rb', line 4

def genie
  @genie
end

#lamp ⇒ Object (readonly)

Returns the value of attribute lamp.



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# File 'lib/lamp_with_genie.rb', line 4

def lamp
  @lamp
end

Instance Method Details

#draw ⇒ Object 



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# File 'lib/lamp_with_genie.rb', line 111

def draw
  @lamp.draw
  @genie.update && @genie.draw if @lamp.rubbed?
end

#off_screen? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/lamp_with_genie.rb', line 116

def off_screen?
  if @lamp.rubbed?
    @genie.y > @window.height
  else
    @lamp.y > @window.height
  end
end

#scroll(speed) ⇒ Object 



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# File 'lib/lamp_with_genie.rb', line 106

def scroll(speed)
  @lamp.y += speed
  @genie.y += speed
end