Int value will not reset - c++

This is what I have so far
#include <iostream>
#include <cstdlib>
#include <ctime>
#include <string>
#include <cmath>
using namespace std;
string userGuess;
string code;
char colorPegs[6] = {'R', 'B', 'Y', 'G', 'O', 'P'};
int blackPeg = 0;
int whitePeg = 0;
int userGuessArray[6] = {0, 0, 0, 0, 0, 0};
int codeArray[6] = {0, 0, 0, 0, 0, 0};
bool attemptsDone = false;
int attemptCount = 0;
int main()
{
srand(time(0));
cout << "Please wait while the computer generates the code..." << endl;
cout << "..." << endl;
sleep(2);
for(int i = 0; i < 4; i++)
{
sleep(1);
int random = (rand() % 6) ;
code[i] = colorPegs[random];
cout << "Generating code number " << i << endl;
cout << code[i] << endl;
}
cout << "Done generating the code!" << endl;
sleep(1);
cout << "..." << endl;
cout << "Colors are: R, B, Y, G, O, P. Enter 4 colors in your guess. (e.g RBYG)" << endl;
while (attemptsDone == false)
{
attemptCount++;
cout << "Please enter your guess: ";
getline(cin,userGuess);
// R B Y G O P
// 0 0 0 0 0 0
for(int x = 0; x < 4; x++)
{
if (code[x] == 'R') {
codeArray[0]++;
} else if (code[x] == 'B') {
codeArray[1]++;
} else if (code[x] == 'Y') {
codeArray[2]++;
} else if (code[x] == 'G') {
codeArray[3]++;
} else if (code[x] == 'O') {
codeArray[4]++;
} else if (code[x] == 'P') {
codeArray[5]++;
}
}
for(int z = 0; z < 6; z++)
{
if (userGuess[z] == 'R') {
userGuessArray[0]++;
} else if (userGuess[z] == 'B') {
userGuessArray[1]++;
} else if (userGuess[z] == 'Y') {
userGuessArray[2]++;
} else if (userGuess[z] == 'G') {
userGuessArray[3]++;
} else if (userGuess[z] == 'O') {
userGuessArray[4]++;
} else if (userGuess[z] == 'P') {
userGuessArray[5]++;
}
}
for(int b = 0; b < 6; b++)
{
whitePeg += min(userGuessArray[b], codeArray[b]);
}
if (userGuess.length() > 4)
{
cout << "Invalid amount of colors in your guess!" << endl;
}
else if (userGuess.length() < 4)
{
cout << "Invalid amount of colors in your guess!" << endl;
}
else if (attemptCount > 9)
{
cout << "You are out of guesses! You lose!" << endl;
return 0;
}
else if (userGuess.length() == 4)
{
for (int o = 0; o < 4; o++)
{
if(userGuess[o] == code[o])
{
blackPeg++;
}
}
}
cout << "Your white pegs were " << whitePeg << ", your black pegs were " << blackPeg << endl;
whitePeg = 0;
blackPeg = 0;
}
cout << "You win! Congrats! " << endl;
}
when I run this, the blackPeg value resets to 0, but the whitePeg value does not, it keeps adding up, anyone know why that is? I tried to reset them both at the bottom and I tried to reset them at the top of the while loop, no matter what I do blackPeg goes back to 0 but whitePeg keeps adding up?
By the way you have probably noticed I have not added a way for the while loop to finish, I will add a check to see if you won later on..after I figure out why the white peg will not reset

Related

C++ Program leaving my for loop prematurely

I'm working on a little poker application and i've run into the first problem I just can't seem to comprehend.
while (allplayersGood != 1) { //round table till all decided
cout << "TOP OF WHILE LOOP";
for (int i = 0; i < PLAYER_COUNT; i++) { //for loop for decisions from non button or blinds
int player_decision = 1;
char choice;
if ((players[i].playerhand.card1.value != 'F') && (players[i].playerhand.card1.value != 'C')) {
if ((players[i].blind != 1 && players[i].blind != 2) && players[i].button != true) {
cout << "\n\n";
cout << " POT: " << playerTable->currentPot;
cout << "\n";
for (int i = 0; i < PLAYER_COUNT; i++) {
cout << "Player " << players[i].playernumber;
cout << " (" << players[i].chip_amount << ") ";
}
while (player_decision == 1) {
if (playerTable->currentBet > players[i].currentBet) {
cout << "\n\nPlayer " << players[i].playernumber << " ("; players[i].playerhand.printhand(); cout << ") " << "Type F for Fold, B for Call, R for Raise: ";
cin >> choice;
players[i].choice = choice;
if (choice == 'F') {
player_decision = 0;
players[i].fold();
}
if (choice == 'R') {
player_decision = 0;
players[i].bet(playerTable);
}
if (choice == 'B') {
player_decision = 0;
players[i].call(playerTable);
}
}
if ((playerTable->currentBet == players[i].currentBet) && player_decision != 0) { //big blind after round table
cout << "\n\nPlayer " << players[i].playernumber << " ("; players[i].playerhand.printhand(); cout << ") " << "Type C for Check, R for Raise: ";
cin >> choice;
players[i].choice = choice;
if (choice == 'B') {
player_decision = 0;
players[i].bet(playerTable);
}
if (choice == 'C') {
if (players[i].check(playerTable) == true) {
player_decision = 0;
}
}
}
}
}
else if (players[i].blind == 1 || players[i].blind == 2) {
if (players[i].blind == 1) {
players[i].chip_amount -= sblind;
playerTable->currentPot += sblind;
players[i].blind = 0;
players[i].currentBet = sblind;
}
if (players[i].blind == 2) {
players[i].chip_amount -= bblind;
playerTable->currentPot += bblind;
players[i].blind = 0;
players[i].currentBet = bblind;
}
}
}
}
for (int i = 0; i < PLAYER_COUNT; i++) { //seperate loop for button and blinds that were ignored in loop above
int player_decision = 1;
char choice;
if (players[i].button == true || players[i].blind == 1) { //button and small blind
cout << "\n\n";
cout << " POT: " << playerTable->currentPot;
cout << "\n";
for (int i = 0; i < PLAYER_COUNT; i++) {
cout << "Player " << players[i].playernumber;
cout << " (" << players[i].chip_amount << ") ";
}
while (player_decision == 1) {
cout << "\n\nPlayer " << players[i].playernumber << " ("; players[i].playerhand.printhand(); cout << ") " << "Type F for Fold, B for Call, R for Raise: ";
cin >> choice;
players[i].choice = choice;
if (choice == 'F') {
player_decision = 0;
players[i].fold();
}
if (choice == 'R') {
player_decision = 0;
players[i].bet(playerTable);
}
if (choice == 'B') {
player_decision = 0;
players[i].call(playerTable);
}
}
}
cout << i;
if (players[i].blind == 2) { //big blind
cout << "\n\n";
cout << " POT: " << playerTable->currentPot;
cout << "\n";
for (int i = 0; i < PLAYER_COUNT; i++) {
cout << "Player " << players[i].playernumber;
cout << " (" << players[i].chip_amount << ") ";
}
while (player_decision == 1) {
cout << "\n\nPlayer " << players[i].playernumber << " ("; players[i].playerhand.printhand(); cout << ") " << "C for Check, R for Raise: ";
cin >> choice;
players[i].choice = choice;
if (choice == 'C') {
if (players[i].check(playerTable) == true) {
player_decision = 0;
}
}
if (choice == 'R') {
player_decision = 0;
players[i].bet(playerTable);
}
}
}
}
int playersBetting = 0;
int playersGood = 0;
int playersChecked = 0;
int playersNot = 0;
for (int i = 0; i < PLAYER_COUNT; i++) {
if (players[i].playerhand.card1.value != 'F') {
playersBetting++;
if (players[i].currentBet == playerTable->currentBet) {
playersGood++;
}
}
}
for (int i = 0; i < PLAYER_COUNT; i++) {
if (players[i].playerhand.card1.value != 'F') {
if (players[i].isChecked == true) {
playersChecked++;
}
else {
playersNot++;
}
}
}
cout << playersBetting << playersGood;
if ((playersBetting == playersGood) || (playersNot == 0)) {
cout << "NEXT ROUND STARTED";
}
}
The issue is, during the second for loop with comment "seperate loop for button and blinds that were ignored in loop above" after the first if statement succeeds because players[0] has button equal to true, the player will make the terminal input as a decision, and the program will exit the for loop and go down to the end with the playersBetting and playersGood loops, then return back to the for loop at index 1 correctly.
I'm sorry if this is a little complicated to understand there is a lot of code that I probably didn't put into context very well, if you need any extra information please let me know.
Thank you.
You seem to have different loops inside one another. This is possible, but in that case, you need to use another loop variable (j instead of i), let me show you what happens:
for i ...
for j ...
This causes the following values to be taken for i and j:
i j
1 1
1 2
1 ...
1 n
2 1
2 2
2 ...
2 n
...
n 1
n 2
...
n n
... and here it stops.
If you keep using i in the inner loop, this is what you get:
i (outside loop) i (inside loop)
1 1
2 2 // indeed: changing i inside also changes i outside
... ...
n n
So you jump out of the outside loop, even after just having looped the inside loop one time.
I figured it out, it was unrelated to the actual loop and actually had to do with a value I changed upstream. Thank you for the few who tried to help with such little context haha
Have a good one

Multidimensional array not changing elements from function for some reason

The function player_attack() changes the elements of the multi-dimensional array pc_board but when i reprint it in main, the array prints unchanged.
I removed all unnecessary code.
I tried to pass is at as a parameter to the function but i got an error for using a multidimensional array in the parameter.
$
bool game_won = false;
string board[5][5];
string pc_board[5][5];
void initialize_player_board() {
for (int i = 0; i < 5; i++) {
for (int j = 0; j < 5; j++) {
board[i][j] = "-";
}
}
}
void print_map() {
for (int i = 0; i < 5; i++) {
cout << setw(5);
cout << i << setw(5);
for (int j = 0; j < 5; j++) {
cout << board[i][j] << setw(5);
}
cout << setw(10);
for (int j = 0; j < 5; j++) {
cout << pc_board[i][j] << setw(5);
}
cout << endl;
}
}
void pc_add_battleship() {
int x = 0;
int y = 0;
int choice_generator = 0;
char choice;
x = rand() % 4 + 1;
y = rand() % 4 + 1;
choice_generator = rand() % 2;
if (choice_generator == 0) {
choice = 'h';
}
else {
choice = 'v';
}
if (choice == 'h') {
pc_board[y - 1][x] = 'O';
pc_board[y][x] = 'O';
pc_board[y + 1][x] = 'O';
}
if (choice == 'v') {
pc_board[y][x - 1] = 'O';
pc_board[y][x] = 'O';
pc_board[y][x + 1] = 'O';
}
}
void player_attack() {
int x = 0;
int y = 0;
cout << "Choose an x coordinate to attack: " << endl;
cin >> x;
cout << "Choose a y coordinate to attack: " << endl;
cin >> y;
if (pc_board[y][x] == "O") {
cout << "HIT!" << endl;
pc_board[y][x] == "H";
}
else {
cout << "Miss." << endl;
pc_board[y][x] == "M";
}
}
int main()
{
srand(time(0));
initialize_player_board();
initialize_pc_board();
cout << "Welcome to the battleship game." << endl;
print_map();
Add_battleship();
pc_add_battleship();
while (!game_won) {
print_map();
player_attack();
}
return 0;
}
$
I expected for the multidimensional array to change its elements due to the function
In your function player_attack you use wrong operator:
if (pc_board[y][x] == "O") {
cout << "HIT!" << endl;
pc_board[y][x] == "H"; // here
}
else {
cout << "Miss." << endl;
pc_board[y][x] == "M"; // and here
}
instead of == that is a comparison operator you should use = that is the assignment operator.
Using operator == in this context is still valid C++ syntax, which produces a boolean value, however it does not modify the arguments (which are left and right side of comparison), which is probably what you want to do in most cases. Enabling compiler flags like -Wall or Wextra along with Werror helps to avoid this kind of bugs.

Segmentation fault: 11 c++ Error

this is my first time asking a question on this forum so here it goes. I am creating a tic-tac-toe game for practice and am using enumerators and recursion because I have never really done enumeration and could always get some recursion practice in. Well anyway I just finished coding for the player2 to take a random move and after about 3 turns it gives a segmentation fault and I cannot figure out why... I hope you guys can figure it out and thank you!
#include <iostream>
#include <string>
#include <cstdlib>
const int size = 3;
enum play {none,X,O};
void NPC(play (&board)[size][size],play player2) {
srand(time(NULL));
int tempx = rand() % 3;
int tempy = rand() % 3;
if(board[tempx][tempy] == none)
board[tempx][tempy] = player2;
else
NPC(board,player2);
}
void getBoardState(play (&board)[size][size],int y,int x) {
if(board[x][y] == none) std::cout << " ";
else if(board[x][y] == X) std::cout << "X";
else std::cout << "O";
}
void printboard(play (&board)[size][size]){
int length = 4 * size - 1;
for(int i = 1; i <= length; i++) {
for(int j = 1; j <= length; j++) {
if(i % 4 == 0 && j % 4 == 0) std::cout << "+";
else if(i % 4 == 0) std::cout << "-";
else if(j % 4 == 0) std::cout << "|";
else if(i % 2 == 0 && j % 2 == 0) getBoardState(board,(i - 2)/4,(j - 2)/4);
else std::cout << " ";
}
std::cout << std::endl;
}
}
int main() {
play player = O, player2 = X;
bool over = false;
play board[size][size];
for(int i = 0; i < size; i++) {
for(int j = 0; j < size; j++) {
board[i][j] = none;
}
}
std::string player1 = "";
std::cout << "What would You like to be? An X or an O?" << std::endl;
while(((player1 != "X") + (player1 != "O")) == 2) {
std::cin >> player1;
if(((player1 != "X") + (player1 != "O")) == 2)
std::cout << "Invalid entry! Please enter X or an 0!" << std::endl;
}
if(player1 == "X") {
player2 = O;
player = X;}
int tempx,tempy;
while(!over) {
std::cout << "Please enter an x and then a y (1 to " << size << ")" << std::endl;
std::cin >> tempx;
std::cin >> tempy;
while(tempx > size || tempy > size || board[tempx-1][tempy-1] != none) {
std::cout << "Invalid entry! Try again!" << std::endl;
std::cin >> tempx;
std::cin >> tempy;
}
board[tempx-1][tempy-1] = player;
NPC(board,player2);
printboard(board);
}
return 0;
}
You're running out of stack space in your recursion because you call srand(time(NULL)) every time. The random number generator should only be seeded once, in main, and not in NPC. time(NULL) returns a number of seconds, so it changes infrequently (compared to how fast your recursive function calls will occur) which will consume all available stack space.

Xcode 7 'Function Definition is not allowed here'

My code is below. I have tried all different options. I am still learning C++ through classes but have reached an impasse. Xcode says error are in the lines there are three straight * marks. Ex: ***code* Any advice would be great and looking for ways to understand arrays better.
#include <iostream>
#include <string>
#include <ctime>
#include <cstdlib>
using namespace std;
int board [7] [7];
void initBoard (int array1[7][7]) {
srand(time(0));
string position[7][7];
int moves = rand() % 8 + 5;
int r = 0;
int c = 0;
for (c = 0; c < 7; c++) {
if (c == 0 || c == 6) {
for (r = 0; r < 7; r++) {
position[r][c] = " ";
}
}
else {
for (r = 0; r < 7; r++) {
if (r == 0 || r == 6) {
position[r][c] = " ";
}
else {
position[r][c] = "_ ";
}
}
}
}
***void plantBombs (int array2[7][7]) {***
r = 0;
c = 0;
int k = (rand() % 5) + 1;
int d = ((rand() % 111) % 5) + 1;
int numBombs = rand() % 4 + 3;
int bombR[numBombs];
int bombC[numBombs];
int i = 0;
while (i < numBombs){
bombR[i] = (rand() % 71) % 5 + 1;
bombC[i] = (rand() % 123) % 5 + 1;
while (bombR[i] == k && bombC[i] == d) {
bombR[i] = (rand() % 97) % 5 + 1;
bombC[i] = (rand() % 79) % 5 + 1;
}
while ((i > 0) && (bombR[i-1] == bombR[i]) && (bombC[i-1] == bombC[i])){
bombR[i] = (rand() % 213) % 5 + 1;
bombC[i] = (rand() % 857) % 5 + 1;
}
position[bombR[i]][bombC[i]] = "* ";
i = i + 1;
}
}
***void placeYou (int array2[7][7]){***
position[k][d] = "U ";
}
***void movePlayer (int arrary3[7][7]){***
while (moves != 0) {
cout << "SURVIVE " << moves << " MORE MOVES!" << endl;
for (c = 0; c < 7; c++) {
for (r = 0; r < 7; r++) {
cout << position[r][c];
}
cout << endl;
}
cout << "Enter direction (N/S/E/W): ";
string direction;
cin >> direction;
//if (direction == "N")
if (direction == "N"){
if (position[k][d-1] == " "){
cout << "You fell off the board" << endl;
cout << "***YOU LOSE***" << endl;
break;
}
else if (position[k][d-1] == "* "){
cout << "BANG! YOUR DEAD!" << endl;
cout << "***YOU LOSE!***";
break;
}
else {
position[k][d] = "* ";
position[k][d-1] = "U ";
d = d - 1;
}
}
if (direction == "E"){
if (position[k+1][d] == " "){
cout << "You fell off the board" << endl;
cout << "***YOU LOSE***" << endl;
break;
}
else if (position[k+1][d] == "* "){
cout << "BANG! YOUR DEAD!" << endl;
cout << "***YOU LOSE!***";
break;
}
else {
position[k][d] = "* ";
position[k+1][d] = "U ";
k = k + 1;
}
}
if (direction == "S"){
if (position[k][d+1] == " ") {
cout << "You fell off the board" << endl;
cout << "***YOU LOSE***" << endl;
break;
}
else if (position[k][d+1] == "* "){
cout << "BANG! YOUR DEAD!" << endl;
cout << "***YOU LOSE!***";
break;
}
else {
position[k][d] = "* ";
position[k][d+1] = "U ";
d = d + 1;
}
}
if (direction == "W"){
if (position[k-1][d] == " "){
cout << "You fell off the board" << endl;
cout << "***YOU LOSE***" << endl;
break;
}
else if (position[k-1][d] == "* "){
cout << "BANG! YOUR DEAD!" << endl;
cout << "***YOU LOSE!***";
break;
}
else {
position[k][d] = "* ";
position[k-1][d] = "U ";
k = k - 1;
}
moves = moves - 1;
}
if (moves == 0){
cout << "***YOU WIN***";
}
else {
cout << "";
}
}
}
}
int main()
{
initBoard(board);
***plantBombs(board);
placeYou(board);
movePlayer(board);***
return 0;
}

Can anyone tell me why these functions are not giving me a result in a reasonable spectrum?

The full code I am using is listed below, it is supposed to simulate a game of craps and print details to the user and allow for betting if the user desires it. Everything functions except for the actual craps game. Instead of looping only while there is not a truth value associated to crapsResult, it finds one real value and an incomprehensible string of a single negative number. Any help would be appreciated.
int main()
{
//Declare the user input variables
int gamesPlayed = 0;
char inputPrint = ' ';
char isBetting = ' ';
int startingBet = 0;
//Declare the variables used by the program
int endingBet = 0;
int currentGame = 0;
bool crapsResult;
int gamesWon = 0;
int gamesLost = 0;
double percentWon = 0;
bool detailPrint = false;
//Prompt the user to input their variables
cout << "Enter the number of games to be played: ";
cin >> gamesPlayed;
while(gamesPlayed < 1)
{
cout << " Error: must be greater than 0" << endl;
cout << "Enter the number of games to be played: ";
cin >> gamesPlayed;
cin.clear();
cin.ignore();
}
cout << "Do you wish to print details (Y/N): ";
cin >> inputPrint;
if(inputPrint == 'y' || inputPrint == 'Y')
{
detailPrint = true;
}
cout << "Do you wish to bet (Y/N): ";
cin >> isBetting;
if(isBetting == 'y' || isBetting == 'Y')
{
cout << "Enter money to start betting with: ";
cin >> startingBet;
while(startingBet < 1)
{
cout << " Error: must be greater than 0" << endl;
cout << "Enter the number of games to be played: ";
cin >> gamesPlayed;
cin.clear();
cin.ignore();
}
}
//Seed the random number generator
srand(time(NULL));
//Set a value for ending bet
if(startingBet == 0)
{
endingBet = 1;
}
else
{
endingBet = startingBet;
}
//Call playcraps to simulate the game for as many games as the user input
for(currentGame = 1; currentGame <= gamesPlayed && endingBet > 0; currentGame += 1)
{
crapsResult = NULL;
crapsResult = playCraps(currentGame, detailPrint, isBetting, startingBet);
if(crapsResult == true)
{
gamesWon += 1;
endingBet = betting(endingBet, crapsResult);
}
if(crapsResult == false)
{
gamesLost += 1;
endingBet = betting(endingBet, crapsResult);
}
if((isBetting == 'Y' || isBetting == 'y') && (detailPrint == true))
{
cout << "Money left is $" << endingBet << endl;
}
}
//Calculate the percentage of games won
percentWon = (double(gamesWon) / double(currentGame-1)) * 100.0;
//Print the results to the user
if(isBetting == 'Y' || isBetting == 'y')
{
cout << "Money at end of games is $" << endingBet << endl;
}
cout << "The number of games played is " << currentGame - 1 << endl;
cout << "The number of games won is " << gamesWon << endl;
cout << "The number of games lost is " << gamesLost << endl;
cout << "The percent of games won is " << fixed << showpoint << setprecision(3) << percentWon << endl;
}
//Simulates the roll of a single die and returns the result
int roll()
{
int rollResult = 0;
rollResult = rand() % 6 + 1;
return rollResult;
}
//Calls roll twice and returns the sum of the two results
int roll2Dice()
{
//Declare variables for this function
int rollOne = 0;
int rollTwo = 0;
int rollSum = 0;
//Find rollOne and rollTwo
rollOne = roll();
rollTwo = roll();
//Find rollSum
rollSum = rollOne + rollTwo;
return rollSum;
}
bool playCraps(int currentGame, bool detailPrint, char isBetting, int startingBet)
{
bool crapsResult = NULL;
int currentGameStorage[100];
int currentRoll = 1;
int point = roll2Dice();
int printingNumber = 0;
currentGameStorage[0] = point;
if(point == 7 || point == 11)
{
crapsResult = true;
}
else if(point == 2 || point == 3 || point == 12)
{
crapsResult = false;
}
else
{
crapsResult = NULL;
}
while(crapsResult != true && crapsResult != false)
{
currentGameStorage[currentRoll] = roll2Dice();
if(currentGameStorage[currentRoll] == point)
{
crapsResult = true;
}
else if(currentGameStorage[currentRoll] == 7)
{
crapsResult = false;
}
currentRoll += 1;
}
if(detailPrint == true)
{
cout << "Game " << currentGame << ": ";
for(printingNumber = 0; printingNumber <= currentRoll; printingNumber += 1)
{
cout << currentGameStorage[printingNumber] << " ";
}
if(crapsResult == true)
{
cout << "win";
}
else if(crapsResult == false)
{
cout << "lose";
}
cout << endl;
}
return crapsResult;
}
int betting(int endingBet, bool crapsResult)
{
if(crapsResult == true)
{
endingBet += 1;
}
else if(crapsResult == false)
{
endingBet -= 1;
}
return endingBet;
}
Just skimmed and didn't read all of your code (so there may be other things wrong too), but this line is definitely problematic:
while(crapsResult != true && crapsResult != false)
It is logically impossible for crapsResult to simultaneously be both true and false, so that loop will never be entered.
Turix got the right bug I believe, but I would put the emphasis on a different spot:
bool crapsResult = NULL;
You are trying to use crapsResult for three different values (true, false and NULL). However, NULL usually has a integer value of 0, which translates to a boolean value of false, so your loop will never be entered.
Then a second bug comes into play: currentRoll is 1 at this time, so you try to print the contents of currentGameStorage from index 0 to 1 (inclusive), currentGameStorage[1] hasn't been assigned yet. This is why you get the cryptic numer in your output. This is a general mistake: Your code always tries to print one item too much. Use < instead of <= in the loop head to fix that:
for(printingNumber = 0; printingNumber < currentRoll; printingNumber += 1)