TP_13 exo2: Finish the implementation of a basic tic-tac-toe game.

[TD_C.git] / TP_13 / exo2 / src / main.c

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ncurses.h>

#include "display.h"
#include "coordinates.h"

int main() {
    int row, col, errno = 0, round = 0, player = 0, key_pressed;
    bool winning_condition = false;
    bool loop_exit_condition = false;
    const int str_max_length = 255;
    /* FIXME: make a strings handling library */
    char* top_msg = malloc(str_max_length * sizeof(char));
    char* back_msg = malloc(str_max_length * sizeof(char));
    char* exit_msg = malloc(str_max_length * sizeof(char));

    initscr();
    getmaxyx(stdscr, row, col);
    noecho();
    curs_set(0);

    /* array of the active coordinates in the entered order */
    coordinates_t coordinates_array[MAX_COORDINATES];
    init_coordinates(coordinates_array);
    coordinates_t new_coordinates = {0, 0, 0};

    /* center base coordinates for the board */
    int base_y = row/2 - 4;
    int base_x = col/2 - 7;

    print_board(base_y, base_x);

    do {
        if (errno == 0) round++;

        if (round % 2 == 0) {
            player = 1;
            top_msg = "Joueur 2 joue";
        } else {
            player = 0;
            top_msg = "Joueur 1 joue";
        }

        mvprintw(base_y - 2, (base_x + 7 - strlen(top_msg)/2), top_msg);

        print_coordinates(coordinates_array, base_y, base_x);

        /* FIXME: group the winning case code blocks */
        if (!winning_condition) {
            /* getch() is blocking */
            key_pressed = getch();
            switch (key_pressed) {
                case 'a':
                    new_coordinates = set_coordinates(1, 1, player);
                    break;
                case 'z':
                    new_coordinates = set_coordinates(1, 2, player);
                    break;
                case 'e':
                    new_coordinates = set_coordinates(1, 3, player);
                    break;
                case 'q':
                    new_coordinates = set_coordinates(2, 1, player);
                    break;
                case 's':
                    new_coordinates = set_coordinates(2, 2, player);
                    break;
                case 'd':
                    new_coordinates = set_coordinates(2, 3, player);
                    break;
                case 'w':
                    new_coordinates = set_coordinates(3, 1, player);
                    break;
                case 'x':
                    new_coordinates = set_coordinates(3, 2, player);
                    break;
                case 'c':
                    new_coordinates = set_coordinates(3, 3, player);
                    break;
                default:
                    /* set invalid coordinates */
                    new_coordinates = set_coordinates(0, 0, player);
                    break;
            }
            errno = add_coordinates(new_coordinates, coordinates_array, round);
            winning_condition = chk_win_conditions(coordinates_array, round);
        }

        if (winning_condition) {
            if (player == 0) {
                back_msg = "Joureur 1 gagne !";
            } else {
                back_msg = "Joureur 2 gagne !";
            }
        }

        if (!winning_condition) {
            if (errno == 2) {
                back_msg = "Choisir une case vide";
            } else if (errno == 3) {
                back_msg = "Coordonnees invalides";
            } else if (errno == 1) {
                back_msg = "Tableau rempli sans gagnant: egalite";
            } else if (errno == 4) {
                back_msg = "Erreur inconnue";
            } else if (errno == 0) {
                /* FIXME: properly zero the string */
                back_msg = "";
            }
        }

        mvprintw(base_y + 10, (base_x + 7 - strlen(back_msg)/2), back_msg);

        if (winning_condition || errno == 1) {
            /* print the updated coordinates before exiting */
            print_coordinates(coordinates_array, base_y, base_x);
            exit_msg = "Pressez une touche pour sortir";
            mvprintw(base_y + 12, (base_x + 7 - strlen(exit_msg)/2), exit_msg);
            loop_exit_condition = true;
        }

        refresh();

    } while (!loop_exit_condition);

    /* getch() is blocking */
    getch();

    endwin();

    if (!top_msg)
        free(top_msg);
    if (!back_msg)
        free(back_msg);
    if (!exit_msg)
        free(exit_msg);

    exit(EXIT_SUCCESS);
}