我目前正在为我的大学课程开设名为Blackjack的CMSC项目。我正在尝试将另一个名为Card的类添加到另一个名为Hand的类中的矢量对象中。 Hand类作为对象存储在另一个向量中，称为Player。
我的问题是我尝试在名为Blackjack的类中调用OutputPlayerHand方法，但是我遇到了分段错误。
这是我的Blackjack.cpp类的代码。
#include "Blackjack.h"
#include <iostream>
Blackjack::Blackjack()
{
// Initialize the dealer
Player dealer((char *) "Dealer", 100);
m_dealer = dealer;
// Initialize a player 'Jane' with 100 funds
Player player((char *) "Jane", 100);
m_players.push_back(player);
}
Blackjack::Blackjack(char *names[], int numPlayers)
{
// Initialize the dealer
Player dealer((char *) "Dealer", 100);
m_dealer = dealer;
// Loop through all passed player names
for(int i = 0; i < numPlayers; i++)
{
// Initialize a player 'names[i]' with 100 funds
Player player(names[i], 100);
m_players.push_back(player);
}
}
int Blackjack::GetNumPlayers()
{
// Return the size of the players vector
return m_players.size();
}
char *Blackjack::GetPlayerName(int player)
{
// Return the requested player's name
return m_players[player].GetName();
}
int Blackjack::GetPlayerFunds(int player)
{
// Return the requested player's funds
return m_players[player].GetFunds();
}
void Blackjack::SetPlayerFunds(int player, int amt)
{
// Set the requested player's funds
m_players[player].SetFunds(amt);
}
bool Blackjack::SetPlayerBet(int player, int amt)
{
// If the player has insufficient funds
if(m_players[player].GetFunds() < amt)
{
// Return false
return false;
}
// Subtract the amount from the player funds
m_players[player].SetFunds(m_players[player].GetFunds() - amt);
// Add the amount to the player bet
m_players[player].SetBet(amt);
// Return true
return true;
}
void Blackjack::NewDeal()
{
// Create a new unsorted 52 card deck
Deck deck;
// Initialize m_deck to the new deck
m_deck = deck;
// Shuffle m_deck
m_deck.Shuffle();
// 2 cards for dealer, 2 cards for each player
int cardsToDeal = 2 + (2 * m_players.size());
// While we still have cards to deal
while(cardsToDeal > 0)
{
// Deal to each player
for(unsigned int i = 0; i < m_players.size(); i++)
{
std::cout << "Deal Player Card" << std::endl;
// Deal one card to the player
m_players[i].GetHand().AddCard(m_deck.DealCard());
// Decrement the number of cards to deal
cardsToDeal--;
}
std::cout << "Deal Dealer Card" << std::endl;
// Deal the dealer one card
m_dealer.GetHand().AddCard(m_deck.DealCard());
// Decrement the number of cards to deal
cardsToDeal--;
}
}
void Blackjack::OutputPlayerHand(int player)
{
std::cout << "Player Output Card." << std::endl;
m_players[player].GetHand().GetCard(0).OutputCard();
}
void Blackjack::OutputDealerHand()
{
// TODO: Code Method
}
bool Blackjack::HitPlayer(int player)
{
// TODO: Code Method
return false;
}
void Blackjack::DealerPlay()
{
// TODO: Code Method
}
int Blackjack::SettlePlayerBet(int player)
{
// TODO: Code Method
return -1;
}
这是我的Player.cpp类的代码。
#include "Player.h"
Player::Player()
{
m_name = (char *) "Jane";
m_funds = 100;
m_bet = 0;
}
Player::Player(char *name, int funds)
{
m_name = name;
m_funds = funds;
m_bet = 0;
}
char *Player::GetName()
{
return m_name;
}
void Player::SetName(char *name)
{
m_name = name;
}
int Player::GetFunds()
{
return m_funds;
}
void Player::SetFunds(int funds)
{
m_funds = funds;
}
int Player::GetBet()
{
return m_bet;
}
void Player::SetBet(int bet)
{
m_bet = bet;
}
Hand Player::GetHand()
{
return m_hand;
}
这是Hand.cpp类的代码。
#include "Hand.h"
void Hand::AddCard(Card card)
{
m_cards.push_back(card);
}
Card Hand::GetCard(int card)
{
return m_cards[card];
}
int Hand::Size()
{
return m_cards.size();
}
void Hand::Clear()
{
m_cards.clear();
}
这是我的主类Proj2.cpp的代码。
/*
* CHANGES TO Blackjack.h SPEC:
* added new member funcs:
* char *GetPlayerName(int)
* int GetNumPlayers()
* void OutputDealerHand()
*
* HitPlayer() should print out the card that was dealt.
*/
#include <cstdlib>
#include <iostream>
#include "Blackjack.h"
using namespace std;
Blackjack *CreateGame(int argc, char *argv[]);
int ProcessArgs(int argCnt, char *args[], char **&names, int *&funds);
void DoNewDeal(Blackjack &game);
void ProcAllBets(Blackjack &game);
void DoAllPlays(Blackjack &game);
void PlayOnePlayer(Blackjack &game, int player);
void SettleAllPlayers(Blackjack &game);
void ShowAllPlayerFunds(Blackjack &game);
bool QueryAnotherRound();
int main(int argc, char *argv[]) {
Blackjack *game;
int round;
cout << "Welcome to CMSC 202 Blackjack!\n";
game = CreateGame(argc, argv);
round = 0;
do {
cout << "\nRound " << ++round << ":\n";
ProcAllBets(*game);
DoNewDeal(*game);
DoAllPlays(*game);
SettleAllPlayers(*game);
ShowAllPlayerFunds(*game);
} while (QueryAnotherRound());
cout << "\nGoodbye!\n";
return 0;
}
Blackjack *CreateGame(int argc, char *argv[]) {
char **names;
int *funds;
int numPlayers;
Blackjack *game;
numPlayers = ProcessArgs(argc - 1, &argv[1], names, funds);
game = new Blackjack(names, numPlayers);
for (int p = 0; p < numPlayers; p++) {
game->SetPlayerFunds(p, funds[p]);
}
return game;
}
int ProcessArgs(int argCnt, char *args[], char **&names, int *&funds) {
int i, p;
int numRecs = argCnt / 2;
names = static_cast<char **>(calloc(numRecs, sizeof(char *)));
funds = static_cast<int *>(calloc(numRecs, sizeof(int)));
for (p = 0, i = 0; p < numRecs; p++) {
names[p] = args[i++];
funds[p] = atoi(args[i++]);
}
return p;
}
void ProcAllBets(Blackjack &game) {
int numPlayers = game.GetNumPlayers();
int bet;
for (int p = 0; p < numPlayers; p++) {
cout << "How much does " << game.GetPlayerName(p) << " bet? ";
cin >> bet;
cout << endl; // For neat scripting
if (!game.SetPlayerBet(p, bet)) {
cout << "Illegal bet--changing to $0\n";
game.SetPlayerBet(p, 0);
}
}
}
void DoNewDeal(Blackjack &game) {
int numPlayers = game.GetNumPlayers();
game.NewDeal();
cout << "The players' hands:\n";
for (int p = 0; p < numPlayers; p++) {
cout << game.GetPlayerName(p) << ": ";
game.OutputPlayerHand(p);
cout << endl;
}
cout << "Dealer: ";
game.OutputDealerHand(); // This hides dealer's hole card
cout << "\n\n";
}
void DoAllPlays(Blackjack &game) {
int numPlayers = game.GetNumPlayers();
int p;
for (p = 0; p < numPlayers; p++) {
PlayOnePlayer(game, p);
}
game.DealerPlay();
}
void PlayOnePlayer(Blackjack &game, int player) {
char *name = game.GetPlayerName(player);
string answer;
bool hit, busted;
cout << ">>" << name << "'s turn:\n";
busted = false;
do {
cout << "Hand: ";
game.OutputPlayerHand(player);
cout << endl;
cout << name << "'s play: ";
cin >> answer;
cout << endl; // For neat scripting
answer[0] == 'y' || answer[0] == 'Y';
hit = (answer[0] == 'h' || answer[0] == 'H');
if (hit) {
busted = game.HitPlayer(player);
}
} while (hit && !busted);
if (busted) {
cout << "Busted!\n";
}
cout << endl;
}
void SettleAllPlayers(Blackjack &game) {
int numPlayers = game.GetNumPlayers();
int p;
for (p = 0; p < numPlayers; p++) {
game.SettlePlayerBet(p);
// Above should print out:
// Joe has busted--Dealer wins", or "Sally has 15--Dealer loses"
}
cout << endl;
}
void ShowAllPlayerFunds(Blackjack &game) {
int numPlayers = game.GetNumPlayers();
int p;
for (p = 0; p < numPlayers; p++) {
cout << game.GetPlayerName(p) << " now has $"
<< game.GetPlayerFunds(p) << endl;
}
cout << endl;
}
bool QueryAnotherRound() {
string answer;
cout << "Another round? ";
cin >> answer;
cout << endl; // For neat scripting
return answer[0] == 'y' || answer[0] == 'Y';
}
谁能告诉我我做错了什么？我不允许以任何方式编辑Proj2.cpp类。如果您需要更多信息，请不要犹豫。如果您需要查看整个项目here是到目前为止整个项目的Github存储库的链接。如果您需要查看我的项目规则和说明，here是我的课程项目描述网站的链接。
在此事上非常感谢任何帮助，请提前感谢您的时间。
答案 0 :(得分：2)
Hand为空。
此行：m_players[i].GetHand().AddCard(m_deck.DealCard())仅将卡片添加到临时副本中
让GetHand()返回参考，你的玩家将获得卡片。
此外，您不应在存储库中包含Prog2.out等可执行文件。