diff options
Diffstat (limited to 'src/save/save.c')
| -rwxr-xr-x | src/save/save.c | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/src/save/save.c b/src/save/save.c new file mode 100755 index 0000000..fb2ca22 --- /dev/null +++ b/src/save/save.c @@ -0,0 +1,238 @@ +/****************************************************************************** + * Copyright (C) 2015 Alejandro Colomar Andrés * + * SPDX-License-Identifier: GPL-2.0-only * + ******************************************************************************/ + + +/****************************************************************************** + ******* headers ************************************************************** + ******************************************************************************/ +#include "mine-sweeper/save/save.h" + +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> + +#include <sys/stat.h> + +#include "libalx/base/errno/perror.h" +#include "libalx/base/stdio/wait.h" + +#include "mine-sweeper/game/core.h" +#include "mine-sweeper/player/iface.h" + + +/****************************************************************************** + ******* variables ************************************************************ + ******************************************************************************/ + char home_path [FILENAME_MAX]; + char user_game_path [FILENAME_MAX]; + char saved_path [FILENAME_MAX]; + char saved_name [FILENAME_MAX]; + + +/****************************************************************************** + ******* global functions ***************************************************** + ******************************************************************************/ +void save_init (void) +{ + + if (snprintf(home_path, sizeof(home_path), "%s/", + getenv(ENV_HOME)) >= FILENAME_MAX) { + goto err_path; + } + if (snprintf(user_game_path, sizeof(user_game_path), "%s/%s/", + home_path, USER_GAME_DIR) >= FILENAME_MAX) { + goto err_path; + } + if (snprintf(saved_path, sizeof(saved_path), "%s/%s/", + home_path, USER_SAVED_DIR) >= FILENAME_MAX) { + goto err_path; + } + saved_name[0] = '\0'; + + if (mkdir(user_game_path, 0700)) { + if (errno != EEXIST) + goto err_mkdir; + } + if (mkdir(saved_path, 0700)) { + if (errno != EEXIST) + goto err_mkdir; + return; + } + + return; + +err_path: + alx_perror("Path is too large and has been truncated"); + exit(EXIT_FAILURE); +err_mkdir: + alx_perror(NULL); +} + +void save_clr (void) +{ + + if (snprintf(saved_path, sizeof(saved_path), "%s/%s/", + home_path, USER_SAVED_DIR) >= FILENAME_MAX) { + goto err_path; + } + + return; + + +err_path: + alx_perror("Path is too large and has been truncated"); + exit(EXIT_FAILURE); +} + +int load_game_file (void) +{ + char fname[FILENAME_MAX]; + FILE *fp; + int i; + int j; + + if (snprintf(fname, sizeof(fname), "%s/%s", + saved_path, saved_name) >= FILENAME_MAX) { + goto err_path; + } + + fp = fopen(fname, "r"); + if (!fp) + return -1; + fscanf(fp, "mine-sweeper saved game"); + fscanf(fp, " rows %ti", &game_board.rows); + fscanf(fp, " cols %ti", &game_board.cols); + fscanf(fp, " mines %i", &game_board.mines); + fscanf(fp, " gnd"); + for (i = 0; i < game_board.rows; i++) { + fscanf(fp, " %i", &game_board.gnd[i][0]); + for (j = 1; j < game_board.cols; j++) + fscanf(fp, ",%i", &game_board.gnd[i][j]); + } + fscanf(fp, " usr"); + for (i = 0; i < game_board.rows; i++) { + fscanf(fp, " %i", &game_board.usr[i][0]); + for (j = 1; j < game_board.cols; j++) + fscanf(fp, ",%i", &game_board.usr[i][j]); + } + fscanf(fp, " flags %i", &game_board.flags); + fscanf(fp, " cleared %i", &game_board.clr); + + fclose(fp); + + return 0; + + +err_path: + alx_perror("Path is too large and has been truncated"); + alx_wait4enter(); + exit(EXIT_FAILURE); +} + +void save_game_file (char fpath[static restrict FILENAME_MAX]) +{ + char fname[FILENAME_MAX]; + char tmp[FILENAME_MAX]; + char old_saved[FILENAME_MAX]; + char file_num[6]; + FILE *fp; + int i; + int j; + bool x; + + /* Don't change saved_name variable if not in default dir */ + if (fpath) + snprintf(old_saved, sizeof(old_saved), "%s", saved_name); + + /* Default path & name */ + save_clr(); + snprintf(saved_name, sizeof(saved_name), "%s", SAVED_NAME_DEFAULT); + file_num[0] = '\0'; + + /* Request file name */ + player_iface_save_name(fpath, saved_name); + + /* Look for an unused name of the type 'name_XXX.mine'. */ + x = true; + for (i = 0; x; i++) { + if (!fpath) { + if (snprintf(fname, sizeof(fname), "%s/%s%s%s", + saved_path, saved_name, file_num, + FILE_EXTENSION) >= FILENAME_MAX) { + goto err_path; + } + } else { + if (snprintf(fname, sizeof(fname), "%s/%s%s%s", + fpath, saved_name, file_num, + FILE_EXTENSION) >= FILENAME_MAX) { + goto err_path; + } + } + + fp = fopen(fname, "r"); + if (fp) { + fclose(fp); + file_num[0] = '_'; + file_num[1] = '0' + ((i / 100) % 10); + file_num[2] = '0' + ((i / 10) % 10); + file_num[3] = '0' + (i % 10); + file_num[4] = '\0'; + } else { + x = false; + if (snprintf(tmp, sizeof(tmp), "%s%s%s", + saved_name, file_num, + FILE_EXTENSION) >= FILENAME_MAX) { + goto err_path; + } + snprintf(saved_name, sizeof(saved_name), "%s", tmp); + } + } + + /* Write to a new file */ + fp = fopen(fname, "w"); + if (!fp) { + alx_perror(fname); + goto err_fopen; + } + fprintf(fp, "mine-sweeper saved game\n"); + fprintf(fp, "rows %ti\n", game_board.rows); + fprintf(fp, "cols %ti\n", game_board.cols); + fprintf(fp, "mines %i\n", game_board.mines); + fprintf(fp, "gnd\n"); + for (i = 0; i < game_board.rows; i++) { + fprintf(fp, "%i", game_board.gnd[i][0]); + for (j = 1; j < game_board.cols; j++) + fprintf(fp, ",%i", game_board.gnd[i][j]); + fprintf(fp, "\n"); + } + fprintf(fp, "usr\n"); + for (i = 0; i < game_board.rows; i++) { + fprintf(fp, "%i", game_board.usr[i][0]); + for (j = 1; j < game_board.cols; j++) + fprintf(fp, ",%i", game_board.usr[i][j]); + fprintf(fp, "\n"); + } + fprintf(fp, "flags %i\n", game_board.flags); + fprintf(fp, "cleared %i\n", game_board.clr); + + fclose(fp); +err_fopen: + /* Don't change saved_name if saving in non-default dir */ + if (fpath) + snprintf(saved_name, sizeof(saved_name), "%s", old_saved); + + return; + + +err_path: + alx_perror("Path is too large and has been truncated"); + alx_wait4enter(); + exit(EXIT_FAILURE); +} + + +/****************************************************************************** + ******* end of file ********************************************************** + ******************************************************************************/ |