Code below is of tic tac toe game in C. With 2d array. But it is between player 1 and player 2. I want modification in my code so that the game is between player 1 and computer. The computer move will be through rand() function. Please help me out. Code: #include #include char matrix[3][3] = {{'1', '2', '3'}, {'4', '5', '6'}, {'7', '8', '9'}}; int choice, row, column; char mark = 'O'; bool isDraw = false; void showmatrix() { int t; for (t = 0; t < 3; t++) { printf(" %c | %c | %c ", matrix[t][0], matrix[t][1], matrix[t][2]); if (t != 2) printf("\n---|---|---\n"); } printf("\n"); printf("\n"); } void user_turn() { if (mark == 'O') { printf("User turn : "); } else if (mark == 'X') { printf("Computer turn : "); } scanf("%d", &choice); switch (choice) { case 1: row = 0; column = 0; break; case 2: row = 0; column = 1; break; case 3: row = 0; column = 2; break; case 4: row = 1; column = 0; break; case 5: row = 1; column = 1; break; case 6: row = 1; column = 2; break; case 7: row = 2; column = 0; break; case 8: row = 2; column = 1; break; case 9: row = 2; column = 2; break; default: printf("Invalid Move"); } if (mark == 'X' && matrix[row][column] != 'X' && matrix[row][column] != 'O') { matrix[row][column] = 'X'; mark = 'O'; } else if (mark == 'O' && matrix[row][column] != 'X' && matrix[row][column] != 'O') { matrix[row][column] = 'O'; mark = 'X'; } else { user_turn(); } showmatrix(); } bool gameover() { for (int i = 0; i < 3; i++) { /*checking rows and columns*/ if (matrix[i][0] == matrix[i][1] && matrix[i][0] == matrix[i][2] || matrix[0][i] == matrix[1][i] && matrix[0][i] == matrix[2][i]) return false; } for (int i = 0; i < 3; i++) { /*checking if game is drawn*/ for (int j = 0; j < 3; j++) { if (matrix[i][j] != 'X' && matrix[i][j] != 'O') return true; } } if (matrix[0][0] == matrix[1][1] && matrix[0][0] == matrix[2][2] || /*checking diagonals*/ matrix[0][2] == matrix[1][1] && matrix[0][2] == matrix[2][0]){ return false; } isDraw = true; return false; } int main() { while (gameover()) { showmatrix(); user_turn(); gameover(); } if (mark == 'X' && !isDraw) { printf("User wins the game"); } else if (mark == 'O' && !isDraw) { printf("Computer wins the game"); } else printf("The game ended in a draw"); return 0;
Code below is of tic tac toe game in C. With 2d array. But it is between player 1 and player 2. I want modification in my code so that the game is between player 1 and computer. The computer move will be through rand() function. Please help me out.
Code:
#include<stdio.h>
#include <stdbool.h>
char matrix[3][3] = {{'1', '2', '3'},
{'4', '5', '6'},
{'7', '8', '9'}};
int choice, row, column;
char mark = 'O';
bool isDraw = false;
void showmatrix() {
int t;
for (t = 0; t < 3; t++) {
printf(" %c | %c | %c ", matrix[t][0],
matrix[t][1], matrix[t][2]);
if (t != 2) printf("\n---|---|---\n");
}
printf("\n");
printf("\n");
}
void user_turn() {
if (mark == 'O') {
printf("User turn : ");
} else if (mark == 'X') {
printf("Computer turn : ");
}
scanf("%d", &choice);
switch (choice) {
case 1:
row = 0;
column = 0;
break;
case 2:
row = 0;
column = 1;
break;
case 3:
row = 0;
column = 2;
break;
case 4:
row = 1;
column = 0;
break;
case 5:
row = 1;
column = 1;
break;
case 6:
row = 1;
column = 2;
break;
case 7:
row = 2;
column = 0;
break;
case 8:
row = 2;
column = 1;
break;
case 9:
row = 2;
column = 2;
break;
default:
printf("Invalid Move");
}
if (mark == 'X' && matrix[row][column] != 'X' && matrix[row][column] != 'O') {
matrix[row][column] = 'X';
mark = 'O';
} else if (mark == 'O' && matrix[row][column] != 'X' && matrix[row][column] != 'O') {
matrix[row][column] = 'O';
mark = 'X';
} else {
user_turn();
}
showmatrix();
}
bool gameover() {
for (int i = 0; i < 3; i++) { /*checking rows and columns*/
if (matrix[i][0] == matrix[i][1] && matrix[i][0] == matrix[i][2] ||
matrix[0][i] == matrix[1][i] && matrix[0][i] == matrix[2][i])
return false;
}
for (int i = 0; i < 3; i++) { /*checking if game is drawn*/
for (int j = 0; j < 3; j++) {
if (matrix[i][j] != 'X' && matrix[i][j] != 'O')
return true;
}
}
if (matrix[0][0] == matrix[1][1] && matrix[0][0] == matrix[2][2] || /*checking diagonals*/
matrix[0][2] == matrix[1][1] && matrix[0][2] == matrix[2][0]){
return false;
}
isDraw = true;
return false;
}
int main() {
while (gameover()) {
showmatrix();
user_turn();
gameover();
}
if (mark == 'X' && !isDraw) {
printf("User wins the game");
} else if (mark == 'O' && !isDraw) {
printf("Computer wins the game");
} else
printf("The game ended in a draw");
return 0;
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