X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=src%2Fmain.c;h=229b9d36704a9f76cfc035ebe963e8c72c4d14fb;hb=f74f720e631840566200e8f022b1068e6f3453fb;hp=f7007b7d477232601ef065c8f27af0373ed93a75;hpb=7bebc9943d1648d56968146b17c9459affb183c6;p=plomrogue diff --git a/src/main.c b/src/main.c index f7007b7..229b9d3 100644 --- a/src/main.c +++ b/src/main.c @@ -2,10 +2,11 @@ #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 "windows.h" /* for structs WinMeta, Win, init_win(), init_win_meta(), * draw_all_wins() */ @@ -13,9 +14,7 @@ * draw_log_win() */ #include "keybindings.h" /* for initkeybindings(), get_action_key() */ -#include "readwrite.h" /* for read_uint16_bigendian, read_uint32_bigendian, - * write_uint32_bigendian - */ +#include "readwrite.h" /* for [read/write]_uint[8/16/32][_bigendian]() */ #include "map_objects.h" /* for structs Monster, Item, Player, * init_map_object_defs(), read_map_objects(), * build_map_objects() @@ -32,6 +31,16 @@ int main(int argc, char *argv[]) { struct World world; + char * recordfile_tmp = "record_tmp"; + char * savefile_tmp = "savefile_tmp"; + char * 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; @@ -64,41 +73,75 @@ int main(int argc, char *argv[]) init_map_object_defs(&world, "defs"); /* For interactive mode, try to load world state from savefile. */ + char * err_o = "Error loading game: " + "Unable to open 'savefile' for reading."; + char * err_r = "Error loading game: " + "Trouble reading from opened 'savefile'."; + char * err_c = "Error loading game: " + "Unable to close opened 'savefile'."; + char * savefile = "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"); - world.seed = read_uint32_bigendian(file); - world.turn = read_uint32_bigendian(file); - player.pos.y = read_uint16_bigendian(file) - 1; - player.pos.x = read_uint16_bigendian(file) - 1; - player.hitpoints = fgetc(file); - read_map_objects(&world, &world.monster, file); - read_map_objects(&world, &world.item, file); - fclose(file); + 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--; } /* For non-interactive mode, try to load world state from record file. */ else { + err_o = "Error loading record file: " + "Unable to open file 'record' for reading."; + err_r = "Error loading record file: " + "Trouble reading from opened file 'record'."; + char * recordfile = "record"; world.turn = 1; if (0 == world.interactive) { - file = fopen("record", "r"); - world.seed = read_uint32_bigendian(file); + 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 + * from the current time. + */ + else + { + world.seed = time(NULL); + + err_x = "Error recording new seed: " + "A file 'record' already exists, when it shouldn't."; + err_o = "Error recording new seed: " + "Unable to open 'record_tmp' file for writing."; + char * err_w = "Error recording new seed: " + "Trouble writing to opened file 'record_tmp'."; + err_c = "Error recording new seed: " + "Unable to close opened file 'record_tmp'."; + char * err_m = "Error recording new seed: " + "Unable to rename file 'record_tmp' to 'record'."; + exit_err(!access(recordfile, F_OK), &world, err_x); + 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); } + } - /* For interactive-mode in newly started world, generate a start seed - * from the current time. - */ - else - { - file = fopen("record", "w"); - world.seed = time(NULL); - write_uint32_bigendian(world.seed, file); - fclose(file); - } - } /* Generate map from seed and, if newly generated world, start positions of * actors. @@ -109,7 +152,7 @@ int main(int argc, char *argv[]) set_cleanup_flag(CLEANUP_MAP); if (1 == world.turn) { - player.pos = find_passable_pos(&map); + player.pos = find_passable_pos(world.map); void * foo; foo = build_map_objects(&world, &world.monster, 1, 1 + rrand() % 27); foo = build_map_objects(&world, foo, 2, 1 + rrand() % 9); @@ -127,7 +170,9 @@ 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 = "Error: Window drawing memory allocation failed."; + 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", @@ -147,8 +192,8 @@ 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; @@ -160,8 +205,8 @@ 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 @@ -201,6 +246,8 @@ int main(int argc, char *argv[]) &win_map, &win_info, &win_log); if (1 == quit_called) { + err_c = "Error closing read 'record' file."; + exit_err(fclose(file), &world, err_c); exit_game(&world); } }