So here's one for ya. I have this gomoku (5 ina row tic tac toe) code and I want to change it so the computer AI is not super stupid. Currently, all the computer does is put a piece in the first row. It doesn't even try to block. I simply want to make it a little smarter.
Code:/* A simple Tic Tac Toe game */ #include<stdio.h> #include<stdlib.h> char matrix[15][15]; /* the tic tac toe matrix */ char check(void); void init_matrix(void); void get_player_move(void); void get_computer_move(void); void disp_matrix(void); int main(void) { char done; printf("This is the game of Tic Tac Toe. \n"); printf("You will be playing against the computer. \n"); done = ' '; init_matrix (); do { disp_matrix(); get_player_move(); done = check(); /* check if winner */ if (done != ' ') break; /* winner! */ get_computer_move(); done = check(); /* see if winner */ } while( done == ' '); if (done == 'X') printf("You won! \n"); else printf("I won!!! \n"); disp_matrix(); /* Show final positions */ return 0; } /* Initialize the matrix */ void init_matrix(void) { int i, j; for (i=0; i<15; i++) for (j=0; j<15; j++) matrix[i][j] = ' '; } /* Get a player's move */ void get_player_move(void) { int x, y; printf("Enter X,Y coordinates for your move: "); scanf("%d%*c%d", &x, &y); x--; y--; if(matrix[x][y] != ' ') { printf("Invalid move, try again. \n"); get_player_move(); } else matrix[x][y] = 'X'; } /* Get a move from the computer */ void get_computer_move(void) { int i, j; for(i=0; i<15; i++) { for (j=0; j<15; j++) if (matrix[i][j] == ' ') break; if (matrix[i][j] == ' ') break; } if (i*j == 225) { printf("draw\n"); exit (EXIT_SUCCESS); } else matrix[i][j] = '0'; } /* Display the matrix on the screen */ void disp_matrix(void) { int t; for (t=0; t<15; t++) { printf(" %c | %c | %c | %c | %c | %c | %c | %c | %c | %c | %c | %c | %c | %c | %c ", matrix[t][0], matrix[t][1], matrix[t][2], matrix[t][3], matrix[t][4], matrix[t][5], matrix[t][6], matrix[t][7], matrix[t][8], matrix[t][9], matrix[t][10], matrix[t][11], matrix[t][12], matrix[t][13], matrix[t][14]); if(t!=14) printf("\n---|---|---|---|---|---|---|---|---|---|---|---|---|---|---\n"); } printf("\n"); } /* See if there is a winner */ char check(void) { int i; for (i=0; i<4; i++) /* check rows */ if (matrix[i][0] == matrix[i][1] && matrix[i][0] == matrix[i][2] && matrix[i][0] == matrix[i][3] && matrix[i][0] == matrix[i][4]) return matrix[i][0]; for (i=0; i<4; i++) /* check columns */ if (matrix[0][i] == matrix[1][i] && matrix[0][i] == matrix[2][i] && matrix[0][i] == matrix[3][i] && matrix[0][i] == matrix[4][i]) return matrix[0][i]; /* test diagonals */ if(matrix[0][0] == matrix[1][1] && matrix[1][1] == matrix[2][2] && matrix[2][2] == matrix[3][3]) return matrix[0][0]; if(matrix[0][2] == matrix[1][1] && matrix[1][1] == matrix[2][0]) return matrix[0][2]; return ' '; }
