class_example.cpp

#include <iostream>
#include <memory>

#include "delegate.hpp"

class Character {
 public:
  Character(std::string name) : name_(name) {}

  void OnLevelUp(int newLevel) {
    std::cout << "Character [" << name_ << "] is now level " << newLevel << "!" << std::endl;
  }

 private:
  std::string name_;
};

int main() {
  Delegate<void(int)> levelUpDelegate;

  Character player1("Hero");
  levelUpDelegate.add(&player1, &Character::OnLevelUp);

  auto player2 = std::make_shared<Character>("Mage");
  levelUpDelegate.add_weak(player2, &Character::OnLevelUp);

  std::cout << "First Broadcast:" << std::endl;
  levelUpDelegate.broadcast(10);

  std::cout << "\nDestroying Mage (shared_ptr)..." << std::endl;
  player2.reset();

  std::cout << "Second Broadcast (only Hero should respond):" << std::endl;
  levelUpDelegate.broadcast(11);

  levelUpDelegate.remove_all_for_object(&player1);
  std::cout << "\nFinal Broadcast (empty):" << std::endl;
  levelUpDelegate.broadcast(12);

  return 0;
}