loop not completing its iteration in C - c

Question

I am however having trouble with my game loop! Currently when an invalid move is made, the loop iterates correctly. However when a valid move is made, my program displays the changed board, however appears to freeze in the middle of the loop! i have the location where it freezes (Test Spot 2 in the code), but i have no clue why. The desired output of my code is to keep on iterating until there are no moves available. (I haven't created the check for no moves yet as I cannot get my code to run in a normal counted loop!)
The code working when it is Invalid and not when it is valid is shown below.
here
Main Function where the issue occurs
int main(void)
{
int n;
int p;
char oppChar;
char playChar;
int i;
int pTurn;
int deltaRow;
int deltaCol;
int endGame = 999;
printf("Enter the board dimension: ");
fflush(stdout);
scanf("%d", &n);
printf("Computer plays (B/W) ");
fflush(stdout);
scanf(" %c", &oppChar);
if (oppChar == 'B') {
pTurn = 0;
playChar = 'W';
} else {
pTurn = 1;
playChar = 'B';
}
char board[n][26];
int movesAvalB[n][26];
int movesAvalW[n][26];
int AIBoard[n][26];
for (i = 0; i < n; i++) {
for (p = 0; p < n; p++) {
board[i][p] = 'U';
}
}
board[(n / 2) - 1][(n / 2) - 1] = 'W';
board[(n / 2) - 1][(n / 2)] = 'B';
board[(n / 2)][(n / 2) - 1] = 'B';
board[n / 2][n / 2] = 'W';
printBoard(board, n);
int q = 0;
do {
q++;
// testing
printf(" \n");
printf("Turn Number %d \n", pTurn);
// variable decleration
int k = 0;
int y = 0;
int x = 0;
int max = 0;
int temp = 0;
char c[3] = " ";
// arrays are all 0
for (i = 0; i < n; i++) {
for (p = 0; p < n; p++) {
AIBoard[i][p] = 0;
movesAvalB[i][p] = 0;
movesAvalW[i][p] = 0;
}
}
// moves avaliable to W
for (y = 0; y < n; y++) {
for (x = 0; x < n; x++) {
if (moves(n, x, y, board, 'W')) {
movesAvalW[y][x] = 1;
}
}
}
printf("Test Spot 1\n");
// moves avaliable to B
for (y = 0; y < n; y++) {
for (x = 0; x < n; x++) {
if (moves(n, x, y, board, 'B')) {
printf("Test Spot 1.5\n");
movesAvalB[y][x] = 1;
}
}
}
fflush(stdout);
printf("Test Spot 2\n");
// pTurn = pTurn%2;
fflush(stdout);
printf("Enter a move for colour %c (RowCol): \n", playChar);
fflush(stdout);
scanf("%s", &c);
if (positionInBounds(n, c[0], c[1])) {
int y = c[0] - 97;
int x = c[1] - 97;
if (playChar == 'B') {
if (movesAvalB[y][x] == 1) {
for (deltaRow = -1; deltaRow <= 1; deltaRow++) {
for (deltaCol = -1; deltaCol <= 1; deltaCol++) {
if (positionIntBounds(n, (x + deltaRow), (y + deltaCol))) {
i = 1;
while ((positionIntBounds(n, (y + (i * deltaRow)), (x + (i * deltaCol)))) &&
(board[y + (i * deltaRow)][x + (i * deltaCol)] == 'W')) {
i++;
if ((positionIntBounds(n, (y + (i * deltaRow)), (x + (i * deltaCol)))) &&
(board[y + (i * deltaRow)][x + (i * deltaCol)] == 'B')) {
while (i != 0) {
i--;
board[y + (i * deltaRow)][x + (i * deltaCol)] = 'B';
}
}
}
}
}
}
for (deltaRow = -1; deltaRow <= 1; deltaRow++) {
for (deltaCol = -1; deltaCol <= 1; deltaCol++) {
if (board[y + deltaRow][x + deltaCol] == 'W') {
board[y + deltaRow][x + deltaCol] == 'B';
}
}
}
printBoard(board, n);
} else {
printf("Invalid Move.");
}
}
if (playChar == 'W') {
if (movesAvalW[y][x] == 1) {
for (deltaRow = -1; deltaRow <= 1; deltaRow++) {
for (deltaCol = -1; deltaCol <= 1; deltaCol++) {
if (positionIntBounds(n, (x + deltaRow), (y + deltaCol))) {
i = 1;
while ((positionIntBounds(n, (y + (i * deltaRow)), (x + (i * deltaCol)))) &&
(board[y + (i * deltaRow)][x + (i * deltaCol)] == 'B')) {
i++;
if ((positionIntBounds(n, (y + (i * deltaRow)), (x + (i * deltaCol)))) &&
(board[y + (i * deltaRow)][x + (i * deltaCol)] == 'W')) {
while (i != 0) {
i--;
board[y + (i * deltaRow)][x + (i * deltaCol)] = 'W';
}
}
}
}
}
}
for (deltaRow = -1; deltaRow <= 1; deltaRow++) {
for (deltaCol = -1; deltaCol <= 1; deltaCol++) {
if (board[y + deltaRow][x + deltaCol] == 'B') {
board[y + deltaRow][x + deltaCol] == 'W';
}
}
}
printBoard(board, n);
} else {
printf("Invalid Move.");
}
}
} else {
printf("Invalid Move.");
}
pTurn++;
} while (q <= 5);
printf("were out");
}
Secondary Functions which you probably don't need but maybe
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
void printBoard(char board[][26], int n)
{
int i;
char alpha[27] = "abcdefghijklmnopqrstuvwxyz";
printf(" ");
for (i = 0; i < n; i++) {
printf("%c", alpha[i]);
}
int p;
int q;
for (p = 0; p < n; p++) {
printf("\n");
printf("%c", alpha[p]);
for (q = 0; q < n; q++) {
printf("%c", board[p][q]);
}
}
}
bool positionInBounds(int n, char row, char col)
{
int p = row - 97;
int d = col - 97;
if (p > n) {
return false;
}
if (d > n) {
return false;
}
if (0 > p) {
return false;
}
if (0 > d) {
return false;
}
return true;
}
bool positionIntBounds(int n, int row, int col)
{
if (row > n) {
return false;
}
if (col > n) {
return false;
}
if (0 > row) {
return false;
}
if (0 > col) {
return false;
}
return true;
}
bool checkLegalInDirection(char board[][26], int n, char row, char col, char colour, int deltaRow, int deltaCol)
{
int i = 0;
while ((positionIntBounds(n, (row + (i * deltaRow)), (col + (i * deltaCol)))) &&
(board[row + (i * deltaRow)][col + (i * deltaCol)] != colour) &&
(board[row + (i * deltaRow)][col + (i * deltaCol)] != 'U')) {
i++;
if ((positionIntBounds(n, (row + (i * deltaRow)), (col + (i * deltaCol)))) &&
(board[row + (i * deltaRow)][col + (i * deltaCol)] == colour)) {
return true;
}
}
return false;
}
bool moves(int n, int x, int y, char board[][26], char colour)
{
int deltaRow;
int deltaCol;
if (board[y][x] == 'U') {
for (deltaRow = -1; deltaRow <= 1; deltaRow++) {
for (deltaCol = -1; deltaCol <= 1; deltaCol++) {
if (positionIntBounds(n, (x + deltaRow), (y + deltaCol))) {
if (checkLegalInDirection(board, n, (x + deltaRow), (y + deltaCol), colour, deltaRow, deltaCol)) {
return true;
}
}
}
}
}
return false;
}
(I was told to put fflush(stdout) before my scanf statements but this didnt fix the problem)