71 lines
No EOL
1.8 KiB
C++
71 lines
No EOL
1.8 KiB
C++
#ifndef _H_EVENTS_H
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#define _H_EVENTS_H
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#include <string>
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#include <memory>
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#include <functional>
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#include <unordered_map>
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#include "utility/direction.h"
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class Bullet;
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struct PhysicsComponent;
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class Event {
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public:
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virtual ~Event() { };
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virtual std::string getType() const = 0;
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};
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class BulletFiredEvent : public Event {
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public:
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BulletFiredEvent(const std::shared_ptr<Bullet>& bullet) : bullet(bullet) {};
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std::string getType() const override { return "OnBulletFired"; }
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std::shared_ptr<Bullet> bullet;
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};
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class BulletDiedEvent : public Event {
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public:
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BulletDiedEvent(const std::shared_ptr<PhysicsComponent>& physObj) : physObj(physObj) {};
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std::string getType() const override { return "OnBulletDied"; }
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std::shared_ptr<PhysicsComponent> physObj;
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};
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class BulletCollideEvent : public Event {
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public:
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BulletCollideEvent(const unsigned int ownerID, const unsigned int victimID) : ownerID(ownerID), victimID(victimID) {}
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std::string getType() const override { return "OnBulletCollide"; }
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unsigned int ownerID;
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unsigned int victimID;
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};
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class DirectionChangeEvent : public Event {
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public:
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DirectionChangeEvent(const int actorid, Direction direction) : actorid(actorid), direction(direction) {}
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std::string getType() const override { return "OnDirectionChange"; }
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Direction direction;
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int actorid;
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};
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class EventManager {
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public:
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using EventCallback = std::function<void(std::shared_ptr<Event>)>;
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void subscribe(std::string eventType, EventCallback callback) {
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listeners[eventType].push_back(callback);
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}
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void notify(const std::shared_ptr<Event>& event) {
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auto iterator = listeners.find(event->getType());
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if (iterator != listeners.end())
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{
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for (auto& callback : iterator->second)
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{
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callback(event);
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}
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}
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}
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private:
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std::unordered_map <std::string, std::vector <EventCallback>> listeners;
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};
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#endif //_H_EVENTS_H
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