public BaseEnemy(Texture2D texture, Vector2 position, float speed, int size, SimulationWorld world) : base(texture, position, speed, size, world)
 {
     var rand = new Random();
     switch(rand.Next(0, 4))
     {
         case 0: weapon = new ShotGun(world, this);
             break;
         case 1: weapon = new Bazooka(world, this);
             break;
         case 2: weapon = new Rifle(world, this);
             break;
         default: weapon = new Pistol(world, this);
             break;
     }
 }
        public override void onPickup(Entity e)
        {
            Weapon weapon;
            var rand = new Random();
            switch (rand.Next(0, 4))
            {
                case 0:
                    weapon = new ShotGun(world, e);
                    break;
                case 1:
                    weapon = new Bazooka(world, e);
                    break;
                case 2:
                    weapon = new Rifle(world, e);
                    break;
                default:
                    weapon = new Pistol(world, e);
                    break;
            }

            e.SetWeapon(weapon);
        }