the ball doesn't move

[Antonio Prieto]

Hi, and thanks in advance.

It seems as if the method update in class Ball wouldn't work.  The ball doesn´t fall...

Here is my code:

class Ball

def initialize(gamewindow)

@gamewindow = gamewindow

@icon = Gosu::Image.new(@gamewindow,"images/soccer.png", true)

@x = rand(@gamewindow.width)

@y = 0

end

def draw

@icon.draw(@x,@y,3)

end

def update

@y = @y + 10

end

end

and for gam_window.rb:

$: << File.expand_path(File.dirname(__FILE__)) 

require 'rubygems'  

require 'gosu'  

require 'player' 

require 'Ball'

 

class MyGame < Gosu::Window  

  

  def initialize  

@window_width = 900  

@window_height = 600  

@gosu_window = self  

super(@window_width, @window_height, false)

self.caption = "My first computer game!"  

@background_image = Gosu::Image.new(@gosu_window,"images/javi.jpg", true)  

@player1 = Player.new(self)

@ball = Ball.new(self)

   

  end  

  

  def update  

if button_down? Gosu::Button::KbLeft

@player1.move_left

end

if button_down? Gosu::Button::KbRight 

@player1.move_right

end 

if button_down? Gosu::Button::KbUp

@player1.move_up

end

if button_down? Gosu::Button::KbDown

@player1.move_down

end

   end

  

  def draw  

@background_image.draw(0,0,1)  

@player1.draw

@ball.draw

  end  

  

end  

  

window = MyGame.new  

window.show