class EnemyMissile < Missile
  collides_as :enemy_missile

  def initialize opts
    super
    @color.alpha = 0
    interpolate_alpha(:init => 0, :end => 255, :duration => 2.5)
  end

  def die
    super
    EnemyExplosion.new(:x => @x, :y => @y, :color => @color, :mode => :additive,
                       :final_radius => @width*2.5,
                       :duration => @width/20,
                       :fade_after => (@width/20)*0.65)
  end
end