Class: Asteroids::AsteroidPhysics

Inherits:
Component
  • Object
show all
Defined in:
lib/asteroids/asteroid/asteroid_physics.rb

Instance Method Summary collapse

Methods inherited from Component

#draw

Constructor Details

#initialize(game_object, object_pool) ⇒ AsteroidPhysics

Returns a new instance of AsteroidPhysics.



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# File 'lib/asteroids/asteroid/asteroid_physics.rb', line 4

def initialize(game_object, object_pool)
   super(game_object)
   @object_pool = object_pool
end

Instance Method Details

#detect_collision? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/asteroids/asteroid/asteroid_physics.rb', line 39

def detect_collision?
  @object_pool.objects.each do |other_object|
    if other_object.is_a?  Asteroids::Missile or
      other_object.is_a?  Asteroids::Ship and
      Utils.collide(object, other_object)
        return true
    end
  end
  return false
end

#update ⇒ Object 



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# File 'lib/asteroids/asteroid/asteroid_physics.rb', line 9

def update
  if detect_collision?
    @explosion_time = Gosu.milliseconds
    object.explode
  end
  if @explosion_time
    if Gosu.milliseconds - @explosion_time  > 100
      object.mark_for_removal
      if object.radius == 45
        2.times do |n|
          Asteroid.new(@object_pool, object.x + rand(20),
           object.y + rand(20), rand * (-1.5), rand() * 1.5, rand * 3,
            (object.radius - 15))
        end
      end
      if object.radius == 30
        2.times do |n|
          Asteroid.new(@object_pool, object.x + rand(20),
           object.y + rand(20), rand() * (-2.2), rand() * 2.2, rand  * 3,
            (object.radius - 12.5))
        end
      end
    end
  end
  object.x += Gosu::offset_x(object.angle, 0.0001) + object.vel_x
  object.y += Gosu::offset_y(object.angle, 0.0001) + object.vel_y
  object.x %= 800
  object.y %= 600
end