C++ 基于文本的游戏 - "Map"实现

Question

我正在尝试创建一个基于文本的冒险游戏。我在想我希望 map 由不同的节点表示，其中每个节点对应一个不同的位置并且具有节点指针变量(左、前和右)应该指向各自方向上的另一个节点。我试图将它实现为一个链表，但使用这种数据结构，我只能让每个节点指向另一个节点。我希望每个节点都指向其他三个节点。我可以使用哪种数据结构来实现这一点，或者这是否可能？

Answer 1

链接数据结构可以很好地完成您想要的工作:

例子:

class location
{
    std::string loc_name;
    std::vector<std::pair<std::string,location*>> connections;
    std::string description;
public:
    bool add_link(location* loc, std::string dicription_to, std::string dicription_from);
    //other parameters + functions to manage class
}

这将允许您创建位置，例如:

location* loc = new location("graveyard");
loc->description = "A spooky graveyard on a hill, a cool mist floats amongst the gravestones and monuments";
loc->add_link(crypt /*previously defined*/, 
              "An imposing mausoleum with an open door, steps inside lead down into darkness", 
              "Moonlight filters down from the top of some steps, a way out?");
loc.add_link(spooky_house /*previously defined*/, 
              "The North gate of the graveyard", 
              "The entrance to the house's spooky graveyard");

我建议创建一个您可以阅读的 map 文件。可能使用这样的模板:

位置文件:

/*locations, format = "name; description"*/
Spooky House; house_description
Crypt;        crypt_description
Graveyard;    A spooky graveyard on a hill, a cool mist floats amongst the gravestones and monuments

链接文件:

/*links, format = "index # (from); index # (to); description (from->to); description (to->from)"*/
3;2;An imposing mausoleum with an open door, steps inside lead down into darkness; Moonlight filters down from the top of some steps, a way out?
3;1;The North gate of the graveyard;The entrance to the house's spooky graveyard;

加载 map 就像读取所有位置并将它们插入 vector 进行存储一样简单，然后添加链接以连接它们。