Question

我遇到这种情况，我想到测试2类“ Game Object”和“ Transform”，它们包含最少数量的参数，以便您更轻松地理解问题。

这里是GameObject：

#pragma once

#include "string"
#include "Transform.h"

class GameObject
{
    public:
        std::string name;
        std::shared_ptr<Transform> transform;

        GameObject(std::string name = "GameObject")
            : name(name)
        {
            this->transform = std::make_shared<Transform>("TransformationFromGameObject");
        }
        ~GameObject() {}

        std::shared_ptr<Transform> getTransform() { return this->transform; }
        std::string getName() { return this->name; }
};

还有Transform：

#pragma once

#include "string"
#include "GameObject.h"

struct Vector3 { int x, y, z; };

class Transform
{
    public:
        std::shared_ptr<GameObject> gameObject;
        std::string name;
        Vector3 position = { 1, 2, 1 };

        Transform(std::shared_ptr<GameObject> gameObjectIn, std::string name = "Transform")
            : gameObject(gameObjectIn), name(name)
        {
        }

        ~Transform() {}

        std::string getName() { return this->name; }
};

我希望从Transform获得Game Object组件，并从Game Object获得Transform。是的，是的，就像游戏引擎中的游戏对象系统一样，我想做类似的事情。仅当我将std::shader_ptr<Transform>指针添加到Game object并包含文件时，所有内容才能正常工作。但是，当我将std::shader_ptr<GameObject>的指针添加到Transform并包含文件时，会出现编译错误错误

C2065: 'GameObject': undeclared identifier occurs

和其他

(13) error C2065: 'GameObject': undeclared identifier
(13) error C2923: 'std::shared_ptr': 'GameObject' is not a valid template type argument for parameter '_Ty'
(15) error C2065: 'GameObject': undeclared identifier
(15) error C2923: 'std::shared_ptr': 'GameObject' is not a valid template type argument for parameter '_Ty'
(17) fatal error C1903: unable to recover from previous error(s); stopping compilation

最后是我的Main.cpp文件：


#include <iostream>
#include "string"
#include "GameObject.h"

int main()
{
    //getting transform from game object
    std::shared_ptr<GameObject> gameObject = std::make_shared<GameObject>("Player");
    std::cout << gameObject->getTransform()->getName() << std::endl;

    //getting game object from transform component
    std::shared_ptr<Transform> transform = std::make_shared<Transform>(gameObject, "SomeTransform");
    std::cout << transform->gameObject->getName() << std::endl;

    std::cin.get();
}

我做错了什么？我该如何解决？

如何解决未声明标识符的问题？

0 个答案: