event.hpp

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 */
 
#pragma once
 
#include <any>
#include <memory>
#include <string>
 
class Component;
 
class Event {
private:
  std::string _type;
  std::shared_ptr<Component> _target;
  std::any _data;
 
public:
  Event(const std::string &type, std::shared_ptr<Component> target,
        const std::any &data = std::any())
      : _type(type), _target(target), _data(data) {}
 
  ~Event(void) = default;
 
  const std::string &getType(void) const { return _type; }
 
  std::shared_ptr<Component> getTarget(void) const { return _target; }
 
  template <typename T> T getData(void) const {
    if (_data.has_value()) {
      return std::any_cast<T>(_data);
    }
    return T();
  }
 
  bool hasData(void) const { return _data.has_value(); }
};