我正在制作一个Chutes＆amp; Ladders游戏和我似乎无法获得我的虚拟RollDiceAndMove（）函数来为我的玩家创造新的位置。它应该使用rand（time）创建一个新位置，然后将该新位置发送回int main（）中的while循环。
任何帮助将不胜感激！我是C ++的新手。
#include <iostream>
#include <string>
#include <cstdlib>
#include <cmath>
#include <ctime>
#include <cctype>
using namespace std;
void RollDiceAndMove(); //game rolls dice, and moves the player
void CheckChutes(); // game checks to see if player landed on chutes
void CheckLadders(); // game checks to see if player landed on ladders
void whoWon(); // game checks to see if anyone has won yet
void welcomeMessage(); // shows display message, and asks if they want to play
void goodbyeMessage(); // tells user goodbye after game
int RollDie;
int NewPos;
int NewPos1;
int main()
{
bool player1Turn = 0; //switches between player1 and player2's turns
string player1Name, player2Name; // gets names from both players
int choice = 'y'; // answer when asked if players want to play
int Player1Loc = 0, Player2Loc = 0; // location of the players
int Playerpos;
welcomeMessage();
cout << endl << endl;
cout << "Enter your names: " << endl << endl;
cout << "Player1: ";
cin >> player1Name;
cout << endl << endl;
cout << "Player2: ";
cin >> player2Name;
while(choice == 'y'){
while(Player1Loc != 100 && Player2Loc != 100){
if(player1Turn){
cout << endl << endl;
cout << player1Name << ": Its your turn." << endl << endl;
cout << "Press Enter to Start Turn: ";
cin.get();
cout << endl << endl;
RollDiceAndMove();
cout << "New Position Amount: " << NewPos1 << endl;
/* CheckChutes();
CheckLadders() */;
player1Turn = false;
}
else{
cout << endl << endl;
cout << player2Name << ": Its your turn." << endl << endl;
cout << "Press Enter to Start Turn: ";
cin.get();
cout << endl;
RollDiceAndMove();
cout << "New Position Amount: " << NewPos << endl;
// CheckChutes();
// CheckLadders();
player1Turn = true;
}
}
while (NewPos == 100) {
whoWon();
}
}
return 0;
}
void welcomeMessage()
{
int choice;
// shows welcome message, and asks if they want to play
// IN: choice
cout << "Welcome to the chutes and ladders game. Both " << endl;
cout << "players start at 0, and the first one to 100 " << endl;
cout << "wins the game. However, if you land on a chute," << endl;
cout << "your player will move down, but a ladder " << endl;
cout << "will move you up." << endl;
}
void goodbyeMessage()
{
// shows the goodbye message
cout << "Thanks for playing!" << endl;
}
void RollDiceAndMove ()
{
// rolls dice, and moves the player
switch(NewPos = 100)
{
for (int Player1pos = 0; Player1pos < 100; Player1pos++)
{
RollDie = rand() % 6 + 1;
Player1pos = 1;
NewPos1 = Player1pos + RollDie;
CheckChutes();
CheckLadders();
cout << "Your new location is: " << NewPos << endl;
break;
}
for (int Player2pos = 0; Player2pos < 100; Player2pos++)
{
RollDie = rand() % 6 + 1;
Player2pos = 1;
NewPos = Player2pos + RollDie;
CheckChutes();
CheckLadders();
cout << "Your new location is: " << NewPos << endl;
break;
}
}
}
void whoWon()
{
int NewPos;
// determines if user has won, when their location is at 100
RollDiceAndMove();
if (NewPos == 100){
cout << "You won!" << endl;
}
}
void CheckChutes ()
{
int NewPos;
//checks if chutes, if yes, then moves player backwards
if (NewPos == 98)
NewPos = 78;
else if (NewPos == 95)
NewPos = 75;
else if (NewPos == 93)
NewPos = 70;
else if (NewPos == 87)
NewPos = 24;
else if (NewPos == 64)
NewPos = 60;
else if (NewPos == 62)
NewPos = 19;
else if (NewPos == 56)
NewPos = 53;
else if (NewPos == 49)
NewPos = 11;
else if (NewPos == 48)
NewPos = 26;
else if (NewPos == 16)
NewPos = 6;
else
NewPos = NewPos;
cout << "You landed on chutes, and have to move down" << endl;
}
void CheckLadders ()
{
int NewPos;
// checks if ladders. if yes, moves player forwards
if (NewPos == 1)
NewPos = 38;
else if (NewPos == 4)
NewPos = 14;
else if (NewPos == 9)
NewPos = 21;
else if (NewPos == 23)
NewPos = 44;
else if (NewPos == 28)
NewPos = 84;
else if (NewPos == 36)
NewPos = 44;
else if (NewPos == 51)
NewPos = 66;
else if (NewPos == 71)
NewPos = 90;
else if (NewPos == 80)
NewPos = 100;
else
NewPos = NewPos;
cout << "You landed on ladders, and get to move up the board!" << endl;
}
答案 0 :(得分：1)
RollDiceAndMove()中的switch语句语法不正确，因此代码只是每次都跳过整个函数。以下是一个简单的教程。
http://www.tutorialspoint.com/cplusplus/cpp_switch_statement.htm
此外，代码还有其他各种“问题”。您正在函数中创建局部NewPos变量，这会导致函数内部的未初始化（具有随机值）变量，而不是您期望的全局变量。在函数内部，NewPos指的是在调用函数时创建的局部变量，并在返回时被销毁; ::NewPos指的是您的全局变量。 cin>>player2Name;在std::cin流中留下了一个换行符cin.get();，后续的while占用了一行，因此它的行为不会像您预期的那样。使用lLeft.setMaxHeight(USE_PREF_SIZE);
lLeft.setMinHeight(USE_PREF_SIZE);
语句很奇怪。您的代码几乎完全由全局变量和全局void函数组成;尽可能避免这两种情况。
如果你想学习C ++，我建议你拿一本好书并学好语言。以下链接中的第一个是个人喜爱的。
答案 1 :(得分：0)
很抱歉，如果这是一个评论，但由于声誉太低，我无法发表评论。
在RollDiceAndMove函数中，switch语句的语法错误。查看cplusus.com了解详细信息，但基础知识是：
switch (var)
{
case val:
//code
break; //optional
case val2:
//code
break; //optional
....and so on
}
其中var是具有关联的整数值的对象，例如int或enumerator对象，case参数中的int val是switch var对象可以具有的值。
确保在case语句的末尾使用break关键字，以避免“落入”代码应执行的以下case语句。
Cplusplus链接：[http://www.cplusplus.com/doc/tutorial/control/]