testSimpleGames.rb

require "./simplegames.rb"
include SimpleGames
class MyScreen < Screen
  def initialize
    super
    @lives = 5
    @score = 0
  end
  def down_button
    unless @sprites[:ship].y >= @height
      @sprites[:ship].y += 10
    end
  end
  def up_button
    unless @sprites[:ship].y == 0
      @sprites[:ship].y -= 10
    end
  end 
  def right_button
    unless @sprites[:ship].x >= @width
      @sprites[:ship].x += 10
    end
  end
  def left_button
    unless @sprites[:ship].x == 0
      @sprites[:ship].x -= 10
    end
  end
  def space_bar
  	unless @bullet_active
  		@bullet_active = true
  		@sprites[:bullet].x = @sprites[:ship].x + 50
  		@sprites[:bullet].y = @sprites[:ship].y + 50
  	end
  end
  	
  	
  def draw
    super
    @font.draw("Lives: #{@lives}", 10, 10, 2, 1.0, 1.0, 0xffffffff)
    @font.draw("Score: #{@score}", 10, 50, 2, 1.0, 1.0, 0xffffffff)
    if @lives == 0
      @font.draw("GAME OVER", 100, 100, 2, 3.0, 3.0, 0xffff0000)
    end
  end
  
  def update
    super
    if @sprites[:asteroid].x > -10
      @sprites[:asteroid].x -= 20
    else
      # puts @sprites[:asteroid].x
      @sprites[:asteroid].x = 800
      @sprites[:asteroid].y = rand(600)
    end
    if collision(:ship, :asteroid)
      puts "Kaboom!"
      @lives -= 1
      if @lives == 0
        @sprites[:ship].x = 2000
        @sprites[:ship].y = 2000
      else
      @sprites[:ship].x = 10
      @sprites[:ship].y = 10
      end
    end
    
    if collision(:bullet, :asteroid)
        @sprites[:asteroid].x = 800
        @sprites[:asteroid].y = rand(600)
        @bullet_active = false
        @sprites[:bullet].x = 810
        @score += 1 
    end
    
    if @bullet_active
    	@sprites[:bullet].x += 10
	end
	if @sprites[:bullet].x >= 1810
		@bullet_active = false
	end
    
  end
end
screen = MyScreen.new
Sprite.new(:ship, "forward.png", screen, 0, 0, 50)
Sprite.new(:asteroid, "asteroid.png", screen,800,rand(600))
Sprite.new(:bullet, "bullet.png", screen, -10, -10)
@bullet_active = false
puts "#{screen.sprites[:ship].bounding_height} high and #{screen.sprites[:ship].bounding_width}"
puts "#{screen.sprites[:asteroid].bounding_height} high and #{screen.sprites[:asteroid].bounding_width}"

screen.show