小编Sig*_*gel的帖子

这是我的第一个问题.

编写一些代码,我从g ++收到此错误:"在此范围内未声明实体",在此上下文中:

#ifndef Psyco2D_GameManager_
#define Psyco2D_GameManager_

#include <vector>
#include "Entity.h"

namespace Psyco2D{
    class GameManager{J
    private:
        std::vector<Entity> entities;
    };
}

#endif

这是Entity.h的内容:

#ifndef Psyco2D_Entity_
#define Psyco2D_Entity_

#include <string>
#include "GameManager.h"
#include "EntityComponent.h"


namespace Psyco2D{

    class Entity{
        friend class GameManager;

    private:
        /* Identificatore */
        std::string _name;

        /* Components list */
        std::map<const std::string, EntityComponent*> components;

    protected:
        Entity(const std::string name);

    public:
        inline const std::string getName() const{
            return this->_name;
        }

        void addComponent(EntityComponent* component, const std::string name);

        EntityComponent* lookupComponent(const std::string name) const;

        void deleteComponent(const std::string …