Class: Spacewar::Game

Inherits:
Chingu::Window
  • Object
show all
Defined in:
lib/spacewar/spacewar.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Game

Returns a new instance of Game.



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# File 'lib/spacewar/spacewar.rb', line 19

def initialize
  super(Spacewar::SCREEN_WIDTH, Spacewar::SCREEN_HEIGHT)
  
  Image.autoload_dirs << File.join(ROOT, 'media')
  
  self.input = {:esc => :exit}
  
  @planet = Planet.create

  @player1 = Player.create({:holding_right => :turn_right,
                            :holding_left => :turn_left,
                            :holding_up => :accelerate},
                            :zorder => 2,
                            :x => 180,
                            :y => 240,
                            :image => 'Starfighter_p1.bmp')
  
  @player2 = Player.create({:holding_d => :turn_right,
                            :holding_a => :turn_left,
                            :holding_w => :accelerate},
                            :zorder => 2,
                            :x => 400,
                            :y => 240,
                            :image => 'Starfighter_p2.bmp')
  @score = 0
  @score_text = Chingu::Text.create("Score: #{@score}", :x => 10, :y => 10, :zorder => 55, :size=>20)
end

Instance Method Details

#update ⇒ Object 



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# File 'lib/spacewar/spacewar.rb', line 47

def update
  super

  if rand(100) < 4 && Star.all.size < 25
    Star.create
  end

  #
  # Collide @player with all instances of class Star
  #
  @player1.each_collision(Star) do |player, star| 
    star.destroy
    @score+=10
  end

  @player2.each_collision(Star) do |player, star|
    star.destroy
    @score-=5
  end

  @player1.adjust_gravity(@planet)
  @player2.adjust_gravity(@planet)

  Star.all.each{|star| star.adjust_gravity(@planet)}

  @player1.each_collision(Player) do |player1, player2|
    if player2 == @player2
      player1.destroy
      player2.destroy
      @player1 = Player.create({:holding_right => :turn_right,
                                :holding_left => :turn_left,
                                :holding_up => :accelerate},
                                :zorder => 2,
                                :x => 180,
                                :y => 240,
                                :image => 'Starfighter_p1.bmp')
      @player2 = Player.create({:holding_d => :turn_right,
                                :holding_a => :turn_left,
                                :holding_w => :accelerate},
                                :zorder => 2,
                                :x => 400,
                                :y => 240,
                                :image => 'Starfighter_p2.bmp')
    end
  end

  @planet.each_collision(Player) do |planet, player| 
    player.destroy
    @score-=10000
  end

  @score_text.text = "Score: #{@score}"
  self.caption = "Chingu Game - " + @score_text.text
end