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#include "Observer.h"

#include "Subject.h"

Observer::~Observer() { }

Observer::Observer() { }

Subject* ConcreteObserver::GetSubject() {

return _sub;

}

ConcreteObserver::ConcreteObserver(Subject* sub) {

_sub = sub;

_sub->Attach(this);

}

ConcreteObserver::~ConcreteObserver() {

_sub->Detach(this);

//if (_sub != nullptr) {

// delete _sub;

//}

}

void ConcreteObserver::Update(Subject* sub) {

_st = sub->GetState();

PrintInfo();

}

void ConcreteObserver::PrintInfo() {

cout << "ConcreteObserver::PrintInfo\t" << _sub->GetState() << endl;

}