Problem overridding virtual function

Question

Okay, I\'m writing a game that has a vector of a pairent class (enemy) that s going to be filled with children classes (goomba, koopa, boss1) and I need to make it so when I

Answer 1

You need to call the parent's update method before any processing by the descendant classes:

struct Base_Class
{
  virtual void update(void)
  {
    cout << "Updating Base_Class.\n";
  }
};

struct Goomba : public Base_Class
{
  void update(void)
  {
     // Invoke the parent method first.
     Base_Class::update();

     // Perform Descendant operations
     cout << "Updating Goomba\n";
  }
};

Here is the implementation:

#include 
using std::cout;

void Update_Player(Base_Class& b)
{
  b.update();
  return;
}

int main(void)
{
   Goomba g;
   g.update();

   Goomba g2;
   std::vector container;
   container.push_back(&g);
   container.push_back(&g2);

   std::vector::iterator iter;
   for (iter =  container.begin();
        iter != container.end();
        ++iter)
   {
       Update_Player(*(*iter));
   }

   return 0;
}