X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=src%2Fmain.c;h=7caef902be0f9dad534f8d1c758f5af149d28a37;hb=ca52663339a9577d85115f3eba83cfa2ccad5145;hp=d2fb9bf2140c1b84b9b1495391bacf322c3d8f76;hpb=b9082c113c43afe5c6a11c2b72f845ee2f8c6aea;p=plomrogue diff --git a/src/main.c b/src/main.c index d2fb9bf..7caef90 100644 --- a/src/main.c +++ b/src/main.c @@ -2,10 +2,12 @@ #include "main.h" #include /* for atoi(), exit(), EXIT_FAILURE, calloc() */ -#include /* for FILE typedef, F_OK */ +#include /* for FILE typedef, F_OK, rename() */ #include /* for initscr(), noecho(), curs_set(), keypad(), raw() */ #include /* for time() */ -#include /* for getopt(), optarg */ +#include /* for unlink(), getopt(), optarg */ +#include /* for uint8_t */ +#include /* for errno */ #include "windows.h" /* for structs WinMeta, Win, init_win(), init_win_meta(), * draw_all_wins() */ @@ -30,6 +32,35 @@ int main(int argc, char *argv[]) { struct World world; + char * recordfile = "record"; + char * savefile = "savefile"; + char * err_x = "A file 'record' exists, but no 'savefile'. If everything " + "was in order, both or none would exist. I won't start " + "until this is corrected."; + if (!access(recordfile, F_OK) && access(savefile, F_OK)) + { + errno = 0; + exit_err(1, &world, err_x); + } + err_x = "A 'savefile' exists, but no file 'record'. If everything " + "was in order, both or none would exist. I won't start " + "until this is corrected."; + + if (!access(savefile, F_OK) && access(recordfile, F_OK)) + { + errno = 0; + exit_err(1, &world, err_x); + } + char * recordfile_tmp = "record_tmp"; + char * savefile_tmp = "savefile_tmp"; + err_x = "A file 'recordfile_tmp' exists, probably from a corrupted " + "previous record saving process. To avoid game record " + "corruption, I won't start until it is removed or renamed."; + exit_err(!access(recordfile_tmp, F_OK), &world, err_x); + err_x = "A file 'savefile_tmp' exists, probably from a corrupted " + "previous game saving process. To avoid savegame " + "corruption, I won't start until it is removed or renamed."; + exit_err(!access(savefile_tmp, F_OK), &world, err_x); /* Read in startup options (i.e. replay option and replay start turn). */ int opt; @@ -60,33 +91,47 @@ int main(int argc, char *argv[]) world.monster = 0; world.item = 0; init_map_object_defs(&world, "defs"); - uint8_t fail = 0; /* For interactive mode, try to load world state from savefile. */ + char * err_o = "Trouble loading game (fopen() in main()) / " + "opening 'savefile' for reading."; + char * err_r = "Trouble loading game (in main()) / " + "reading from opened 'savefile'."; + char * err_c = "Trouble loading game (fclose() in main()) / " + "closing opened 'savefile'."; FILE * file; - if (1 == world.interactive && 0 == access("savefile", F_OK)) + if (1 == world.interactive && 0 == access(savefile, F_OK)) { - file = fopen("savefile", "r"); - fail = fail | read_uint32_bigendian(file, &world.seed); - fail = fail | read_uint32_bigendian(file, &world.turn); - fail = fail | read_uint16_bigendian(file, &player.pos.y); - fail = fail | read_uint16_bigendian(file, &player.pos.x); + file = fopen(savefile, "r"); + exit_err(0 == file, &world, err_o); + if ( read_uint32_bigendian(file, &world.seed) + || read_uint32_bigendian(file, &world.turn) + || read_uint16_bigendian(file, &player.pos.y) + || read_uint16_bigendian(file, &player.pos.x) + || read_uint8(file, &player.hitpoints) + || read_map_objects(&world, &world.monster, file) + || read_map_objects(&world, &world.item, file)) + { + exit_err(1, &world, err_r); + } + exit_err(fclose(file), &world, err_c); player.pos.y--; player.pos.x--; - fail = fail | read_uint8(file, &player.hitpoints); - fail = fail | read_map_objects(&world, &world.monster, file); - fail = fail | read_map_objects(&world, &world.item, file); - fclose(file); } /* For non-interactive mode, try to load world state from record file. */ else { + err_o = "Trouble loading record file (fopen() in main()) / " + "opening file 'record' for reading."; + err_r = "Trouble loading record file (read_uint32_bigendian() in " + "main()) / reading from opened file 'record'."; world.turn = 1; if (0 == world.interactive) { - file = fopen("record", "r"); - fail = fail | read_uint32_bigendian(file, &world.seed); + file = fopen(recordfile, "r"); + exit_err(0 == file, &world, err_o); + exit_err(read_uint32_bigendian(file, &world.seed), &world, err_r); } /* For interactive-mode in newly started world, generate a start seed @@ -94,15 +139,25 @@ int main(int argc, char *argv[]) */ else { - file = fopen("record", "w"); world.seed = time(NULL); - fail = fail | write_uint32_bigendian(world.seed, file); - fclose(file); + + err_o = "Trouble recording new seed (fopen() in main()) / " + "opening 'record_tmp' file for writing."; + char * err_w = "Trouble recording new seed " + "(write_uint32_bigendian() in main()) / writing to " + "opened file 'record_tmp'."; + err_c = "Trouble recording new seed (fclose() in main()) / " + "closing opened file 'record_tmp'."; + char * err_m = "Trouble recording new seed (rename() in main()) : " + "renaming file 'record_tmp' to 'record'."; + file = fopen(recordfile_tmp, "w"); + exit_err(0 == file, &world, err_o); + exit_err(write_uint32_bigendian(world.seed, file), &world, err_w); + exit_err(fclose(file), &world, err_c); + exit_err(rename(recordfile_tmp, recordfile), &world, err_m); } } - exit_err(fail, &world, "Failure initializing game."); - /* Generate map from seed and, if newly generated world, start positions of * actors. @@ -131,7 +186,9 @@ int main(int argc, char *argv[]) raw(); init_keybindings(&world); set_cleanup_flag(CLEANUP_KEYBINDINGS); - struct WinMeta win_meta = init_win_meta(screen); + struct WinMeta win_meta; + char * err_winmem = "Trouble with init_win() or draw_all_wins() in main()."; + exit_err(init_win_meta(screen, &win_meta), &world, err_winmem); struct Win win_keys = init_win(&win_meta, "Keys", 0, 29, &world, draw_keys_win); struct Win win_info = init_win(&win_meta, "Info", @@ -151,8 +208,8 @@ int main(int argc, char *argv[]) /* Replay mode. */ int key; - unsigned char quit_called = 0; - unsigned char await_actions = 1; + uint8_t quit_called = 0; + uint8_t await_actions = 1; if (0 == world.interactive) { int action; @@ -164,8 +221,8 @@ int main(int argc, char *argv[]) } if (0 == start_turn) { - draw_all_wins (&win_meta); - key = getch(); + exit_err(draw_all_wins(&win_meta), &world, err_winmem); + key = getch(); } if (1 == await_actions && (world.turn < start_turn @@ -205,6 +262,9 @@ int main(int argc, char *argv[]) &win_map, &win_info, &win_log); if (1 == quit_called) { + err_c = "Trouble closing 'record' file (fclose() in " + "main())."; + exit_err(fclose(file), &world, err_c); exit_game(&world); } }