Modify a simple Ruby program to move a shape across the screen by changing the provided code in the Gosu cycle update() method.

Provide the full Ruby code as the final answer. Any deviation or change from the request (the code has to work), will result in a report!

Existing code:

Shape_moving.rb:

require 'gosu'

module ZOrder

BACKGROUND, MIDDLE, TOP = *0..2

end

WIDTH = 400

HEIGHT = 500

SHAPE_DIM = 50

# Instructions:

# Fix the following code so that:

# 1. The shape also can be moved up and down

# 2. the shape does not move out of the window area

class GameWindow

# initialize creates a window with a width an a height

# and a caption. It also sets up any variables to be used.

# This is procedure i.e the return value is 'undefined'

def initialize

super(WIDTH, HEIGHT, false)

self.caption = "Shape Moving"

@shape_y = HEIGHT / 2

@shape_x = WIDTH / 2

end

# Put any work you want done in update

# This is a procedure i.e the return value is 'undefined'

def update

if button_down?(Gosu::KbRight)

if @shape_x != (WIDTH - SHAPE_DIM)

@shape_x += 3

end

end

if button_down?(Gosu::KbLeft) && (@shape_x != 0)

@shape_x -= 3

end

end

# Draw (or Redraw) the window

# This is procedure i.e the return value is 'undefined'

def draw

Gosu.draw_rect(@shape_x, @shape_y, SHAPE_DIM, SHAPE_DIM, Gosu::Color::RED, ZOrder::TOP, mode=:default)

end

end

window = GameWindow.new

window.show

Modify a simple Ruby program to move a shape across the screen by changing the provided code in the Gosu cycle method. For more information about drawing the shape Method: Gosu.draw rect You must enhance the code provided as follows: Step 1: The shape also can be moved up and down. Step 2: The shape does not move out of the window area. Upload a screenshot of your program running to the workspace