Class: Player

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Player

Returns a new instance of Player.



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# File 'lib/rubyhop/player.rb', line 3

def initialize
  # position
  start!
  @gravity  = -0.25
  @hop      = 7.5
  # sounds
  @sound    = Rubyhop.sound "hop.mp3"
  @gameover = Rubyhop.sound "gameover.mp3"
  # images
  @rise = Rubyhop.image "rubyguy-rise.png"
  @fall = Rubyhop.image "rubyguy-fall.png"
  @dead = Rubyhop.image "rubyguy-dead.png"
end

Instance Attribute Details

#alive ⇒ Object

Returns the value of attribute alive.



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# File 'lib/rubyhop/player.rb', line 2

def alive
  @alive
end

#x ⇒ Object

Returns the value of attribute x.



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# File 'lib/rubyhop/player.rb', line 2

def x
  @x
end

#y ⇒ Object

Returns the value of attribute y.



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# File 'lib/rubyhop/player.rb', line 2

def y
  @y
end

Instance Method Details

#die! ⇒ Object 



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# File 'lib/rubyhop/player.rb', line 28

def die!
  if @alive
    # Set velocity to one last hop
    @velocity = 5.0
    @gameover.play
    @alive = false
  end
end

#draw ⇒ Object 



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# File 'lib/rubyhop/player.rb', line 46

def draw
  image.draw @x - 32, @y - 32, 1000 - @x
end

#hop ⇒ Object 



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# File 'lib/rubyhop/player.rb', line 16

def hop
  if @alive
    @sound.play
    @velocity += @hop
  end
end

#image ⇒ Object 



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# File 'lib/rubyhop/player.rb', line 49

def image
  if @alive
    if @velocity >= 0
      @rise
    else
      @fall
    end
  else
    @dead
  end
end

#offscreen? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubyhop/player.rb', line 43

def offscreen?
  @y > 1000
end

#start! ⇒ Object 



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# File 'lib/rubyhop/player.rb', line 22

def start!
  @x = Rubyhop.width / 3
  @y = Rubyhop.height / 2
  @velocity = 0.0
  @alive = true
end

#update ⇒ Object 



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# File 'lib/rubyhop/player.rb', line 36

def update
  @velocity += @gravity
  @y -= @velocity
  if @alive && (@y < 32 || @y > Rubyhop.height - 32)
    die!
  end
end