Question

我正在研究一个cpp项目，这是我的一个班级的作业，我遇到了上述问题。它的意思基本上是我有这两个类（至少现在）：

#ifndef PLAYER_H_INCLUDED
#define PLAYER_H_INCLUDED
#include <iostream>
#include <string>

using namespace std;

class Player
{
    string name, gender, jobOutside;
    unsigned int age, numberOfWins;
    float skill, tiredness, popularity;
public:
    Player();
    Player(string n, string g, string j, unsigned int a, unsigned int nw, float s, float t, float p);
    ~Player();
    void setName(string n);
    void setGender(string g);
    void setJobOutside(string j);
    void setAge(unsigned int a);
    void setNumberOfWins(unsigned int w);
    void setSkill(float s);
    void setTiredness(float t);
    void setPopularity(float p);
    string getName();
    string getGender();
    string getJobOutside();
    unsigned int getAge();
    unsigned int getNumberOfWins();
    float getSkill();
    float getTiredness();
    float getPopularity();
    void sleeps(Player p);
    void socializes(Player p);
    void develops(Player p);
    void competes(Player p);
    void wins(Player p);
    void getsTired(Player p);
    void plrStatus();
};




#endif // PLAYER_H_INCLUDED

和

#ifndef TEAM_H_INCLUDED
#define TEAM_H_INCLUDED
#include <iostream>
#include <string>

using namespace std;

    class Team
    {
        string colour;
        unsigned int numberOfPlayers, numberOfWins, mealsPerWeek;
        Player plrArr[11];
    public:
        Team();
        Team(string c, unsigned int p, unsigned int w);
        ~Team();
        void setColour(string c);
        void setNumberOfPlayersAndMeals(unsigned int p);
        void setNumberOfWins(unsigned int w);
        string getColour();
        unsigned int getNumberOfPlayers();
        unsigned int getNumberOfWins();
        unsigned int getMealsPerWeek();
        void tmStatus();
    };

#endif // TEAM_H_INCLUDED

我想知道我们如何在课堂上初始化团队类的plrArr [11]属性。构造函数。另外，我将如何制作相应的集合并获取其他属性的功能？非常感谢那些回答!!

Answer 1

如果你想在自动内存中使用数组Player plrArr[11];，你应该在以后的方法中添加方法：

class Player
{
    string name, gender, jobOutside;
    unsigned int age, numberOfWins;
    float skill, tiredness, popularity;
public:
    void Init(string n, string g, string j, unsigned int a, unsigned int nw, float s, float t, float p);
    void Init(const Player& plCopy);

或者只使用数组指针（Player **plrArr;）或std::vector<Player *>以及使用复制构造函数的init播放器。

我认为你应该使用抽象工厂模式来初始化玩家，它会使你的代码变得非常灵活。我将向您展示Player plrArr[11];的示例。您可以稍后在Player上重写它。

class ITeamInitializer
{
public:
    virtual void InitTeam(Player players[], int count) = 0;
    virtual ~ITeamInitializer(){}
};

class HardcordeTeamInitializer : public ITeamInitializer
{
public:
    virtual void InitTeam(Player players[], int count) override
    {

        //players[0].Init(string n, string g, string j, unsigned int a, unsigned int nw, float s, float t, float p) //Some hardcoded data init Goalkeeper))
        //players[1].Init(string n, string g, string j, unsigned int a, unsigned int nw, float s, float t, float p) //Some hardcoded data init
        //...
        //players[9].Init(string n, string g, string j, unsigned int a, unsigned int nw, float s, float t, float p) //Some hardcoded data init
        //players[10].Init(string n, string g, string j, unsigned int a, unsigned int nw, float s, float t, float p) //Some hardcoded data init

    }
};

class FileTeamInitializer : public ITeamInitializer
{
public:
    FileTeamInitializer(const std::string& filename);
    virtual void InitTeam(Player players[], int count) override
    {
        //Read team from file
    }
};

class RandomTeamInitializer : public ITeamInitializer
{
public:
    virtual void InitTeam(Player players[], int count) override
    {
        for ( int i = 0; i < count; i++ )
        {
            players[i].Init( GenarateRandomPlayer() ) //Generating random player
        }
    }
private:
    Player  GenarateRandomPlayer();
};

您还需要将工厂参数传递给Team构造函数：

class Team
{
    string colour;
    unsigned int numberOfPlayers, numberOfWins, mealsPerWeek;
    Player plrArr[11];
public:
    Team(ITeamInitializer& teamInitializer)
    {
        teamInitializer.initTeam(plrArr, 11);
        //...
    }
    Team(string c, unsigned int p, unsigned int w, ITeamInitializer& teamInitializer)
    {
        teamInitializer.initTeam(plrArr, 11);
        //...
    }

因此，借助此模式，您可以在开发过程中切换初始化方法，并在具体情况下选择最佳方法。我展示了3个工厂的例子（简单的硬编码值，从文件初始化，生成随机播放器），你可以更好地提出其他人的意见。祝你好运！

如何初始化作为类中属性的对象数组

1 个答案: