继承一个结构及其来自不同类的所有内容

Question

我一直试图垄断我必须做的项目。赋值要求我使用多个类并使用继承。我有3个类，player_properties，game_board和运行。主要是跑步。 game_board包含一个初始化游戏板所有内容的结构。 player_properties包含一个结构，它初始化归属于玩家的所有属性。我想继承结构的所有属性到我的正在运行的类，并继续使用它们，并从正在运行的类中进行游戏的所有运行。以下是代码：

using namespace std;

struct player
    {

        string piece;
        int location;
        int money;
        int lost;
        int houses;
        int hotels;
    };
class player_properties 
{
public:
        player *players;
    int num_players;
    void assign();//alloting the requirements to the palyers and to the board

};
void player_properties::assign()
{
        //omitted some code to shorten code
        //assigning the players properties
            cin>>ch;
            piecetaken[ch]=1;
            players[i].piece=pieces[ch];
            players[i].location=0;
            players[i].lost=0;
            players[i].money=1500;
            players[i].hotels=0;
            players[i].houses=0;

        }



    }

using namespace std;

struct board_properties
{
    string name;
    int name_length;
    int board_location;
    string player;
    int price;
    int owner_id;
    int houses_owned;
    int hotels_owned;
    int piece_length;


};
class game_board

{
public:
               board_properties *b_properties
        void assigngb();//alloting the requirements to the palyers and to the board
};
void game_board::assigngb()//alloting the requirements to the palyers and to the board
{
        b_properties=new board_properties[40];

        for ( int j=0;j<40;j++)
        {
            b_properties[j].board_location=j;
            b_properties[j].owner_id=10;
            b_properties[j].houses_owned=0;
            b_properties[j].hotels_owned=0;
            b_properties[j].piece_length=0;
        }

}


#include "game_board.cpp"
#include "player_properties.cpp"
using namespace std;

class running :public game_board, public player_properties
{
    public:
    int pos_ch;
    int num_players_playing;
    void position();// to see the position of the player
};

void running::position()
{
    cout<<players[1].piece<<endl; //does not work, core dump since not initialised  
        //some other running code

}


int main()
{

    running rn;
    rn.position();
    player_properties p;
    p.assign();

    game_board gb;
    gb.assigngb();

}

当我尝试使用类，player_properties和game_board运行时，它们会初始化变量，但是当我回到运行函数时，这些值无法访问。线路支付者[1]给出了一个核心转储，因为它说玩家[1]无法访问且不存在。