相关疑难解决方法(0)

基类具有不完整的类型

这个错误究竟是什么意思,我该如何解决？我试图通过class Entity在我的EntityPhysics标题中声明该类来声明该类,但它不起作用.

这是我的Entity.h

#ifndef __Game__Entity__
#define __Game__Entity__

#include <iostream>
#include <string>

#include "OGRE/Ogre.h"

#include "OgreInit.h"

class Entity{
public:
    Entity(std::string entityId, std::string mesh, Ogre::Vector3 position = Ogre::Vector3::ZERO, Ogre::Vector3 rotation = Ogre::Vector3::ZERO);
    virtual ~Entity() = 0;

    void setPosition(Ogre::Vector3 position);
    Ogre::Vector3 getPosition();
    void setRotation(Ogre::Vector3 rotationIncrease);
    Ogre::Vector3 getRotation();
    void setMesh(std::string meshName);
    std::string getMesh();
    virtual void tick() = 0;
    void removeEntity();

    Ogre::Entity getEntity();
    Ogre::SceneNode getSceneNode();

    std::string entityId;
protected:
    Ogre::Entity *ent;
    Ogre::SceneNode *nod;
};

#endif /* defined(__Game__Entity__) */

和我的EntityPhysics.h

#ifndef __Game__EntityPhysics__
#define __Game__EntityPhysics__ …