parkpd

#include <string>
#include <iostream>

class Actor {
public:
  Actor(const char* name) : name_(name) {}
  virtual ~Actor() {}
  virtual void update() = 0;
  void swap() {
    currentSlapped_ = nextSlapped_;

parkpd

#include <string>
#include <iostream>

class Actor {
public:
  Actor(const char* name) : slapped_(false), name_(name) {}
  virtual ~Actor() {}
  virtual void update() = 0;
  void reset() { slapped_ = false; }
  void slap() {

parkpd

#include <string>
#include <iostream>

class Actor {
public:
  Actor(const char* name) : slapped_(false), name_(name) {}
  virtual ~Actor() {}
  virtual void update() = 0;
  void reset() { slapped_ = false; }
  void slap() {

parkpd

void Subject::removeObserver(Observer* observer) {
  Observer** current = &head_;
  while (*current != NULL) {
    if (*current == observer) {
      *current = (*current)->next_;
      observer->next_ = NULL;
      return;
    }
    current = &(*current)->next_;
  }