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#pragma once
#include <vector>
class Observer {
private:
public:
virtual void update();
};
class Subject {
private:
std::vector<Observer*> observers;
public:
// virtual void attach(Observer* obs) { observers.push_back(obs);}
virtual void attach(Observer* obs);
virtual void detach(Observer*);
virtual int size() { return this->observers.size(); }
// TODO possibly add foo input as update value?
virtual void notify();
// virtual void notify() {
// for (int i = 0; i < observers.size(); i++)
// observers.at(i)->update();
// }
};
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