c++ - C++继承和类的新实例

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我有以下标题和类：

game.h：

#include "GameStateManager.h"
class game
{
    //bunch of lines here
}

GameStateManager.h

#include "GameState.h"
class GameStateManager
{
    //bunch of lines here
}

GameState.h

class GameState
{
    //bunch of lines here
}

播放状态

#include "GameState.h"
class PlayState : public GameState
{
    //bunch of lines here
}

我需要在“ game.cpp”中创建PlayState的新实例。我怎样才能做到这一点？

最佳答案

假设您使用标题保护或#pragma once，只需：

#include "GameStateManager.h"
#include "PlayState.h"
class game
{
    PlayState play_state;
    //bunch of lines here
}

关于c++ - C++继承和类的新实例，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/26168931/