X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=src%2Fmain.c;h=f8118674616aed8195a50e6502749b4ed107e11b;hb=435c55c675cad9355a4e82c4d4379267f0c9a9b0;hp=ce01ee52be2797723c8c2fd9a5a2d7620f4e3ed0;hpb=0f12557b88c73f8629ffafc38dc59ab5bd15e687;p=plomrogue

diff --git a/src/main.c b/src/main.c
index ce01ee5..f811867 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,212 +1,334 @@
+/* main.c */
+
 #include "main.h"
-#include <stdlib.h>
-#include <ncurses.h>
-#include <time.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <string.h>
-#include "windows.h"
-#include "draw_wins.h"
-#include "keybindings.h"
-#include "readwrite.h"
-#include "map_objects.h"
-#include "map_object_actions.h"
-#include "map.h"
-#include "misc.h"
+#include <stdlib.h> /* for atoi(), exit(), EXIT_FAILURE, calloc() */
+#include <stdio.h> /* for FILE typedef, F_OK, rename() */
+#include <ncurses.h> /* for initscr(), noecho(), curs_set(), keypad(), raw() */
+#include <time.h> /* for time() */
+#include <unistd.h> /* for unlink(), getopt(), optarg */
+#include <stdint.h> /* for uint8_t */
+#include <errno.h> /* for errno */
+#include "windows.h" /* for structs WinMeta, Win, init_win(), init_win_meta(),
+                      * draw_all_wins()
+                      */
+#include "draw_wins.h" /* for draw_keys_win(), draw_map_win(), draw_info_win(),
+                        * draw_log_win()
+                        */
+#include "keybindings.h" /* for initkeybindings(), get_action_key() */
+#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()
+                          */
+#include "map_object_actions.h" /* for player_wait(), move_player() */
+#include "map.h" /* for struct Map, init_map() */
+#include "misc.h" /* for update_log(), toggle_window(), find_passable_pos(),
+                   * meta_keys(), save_game()
+                   */
+#include "yx_uint16.h" /* for dir enum */
+#include "rrand.h" /* for rrand(), rrand_seed() */
+#include "rexit.h" /* for exit_game() */
+
+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);
 
-int main (int argc, char *argv[]) {
-  struct World world;
+    /* Read in startup options (i.e. replay option and replay start turn). */
+    int opt;
+    uint32_t start_turn;
+    world.interactive = 1;
+    while ((opt = getopt(argc, argv, "s::")) != -1)
+    {
+        switch (opt)
+        {
+            case 's':
+                world.interactive = 0;
+                start_turn = 0;
+                if (optarg)
+                    start_turn = atoi(optarg);
+                 break;
+            default:
+                exit(EXIT_FAILURE);
+        }
+    }
 
-  // Read in startup options (i.e. replay option and replay start turn).
-  int opt;
-  uint32_t start_turn;
-  world.interactive = 1;
-  while ((opt = getopt(argc, argv, "s::")) != -1) {
-    switch (opt) {
-      case 's':
-        world.interactive = 0;
-        start_turn = 0;
-        if (optarg)
-          start_turn = atoi(optarg);
-        break;
-      default:
-        exit(EXIT_FAILURE); } }
+    /* Initialize log, player, monster/item definitions and monsters/items. */
+    world.log = calloc(1, sizeof(char));
+    set_cleanup_flag(CLEANUP_LOG);
+    update_log (&world, " ");
+    struct Player player;
+    player.hitpoints = 5;
+    world.player = &player;
+    world.monster = 0;
+    world.item = 0;
+    init_map_object_defs(&world, "defs");
 
-  // Initialize log, player, monster/item definitions and monsters/items.
-  world.log = calloc(1, sizeof(char));
-  update_log (&world, " ");
-  struct Player player;
-  player.hitpoints = 5;
-  world.player = &player;
-  world.monster = 0;
-  world.item = 0;
-  world.item_def = 0;
-  world.monster_def = 0;
-  FILE * file = fopen("defs", "r");
-  uint16_t linemax;
-  textfile_sizes (file, &linemax, NULL);
-  char                  m_or_i;
-  struct MapObjDef      mod;
-  struct ItemDef        id;
-  struct MonsterDef     md;
-  struct ItemDef    * * p_p_id  = &world.item_def;
-  struct MonsterDef * * p_p_md  = &world.monster_def;
-  char *                defline = malloc(linemax);
-  char *                line_p;
-  while (fgets (defline, linemax, file)) {
-    mod.next    = 0;
-    mod.id      = atoi(defline);
-    line_p      = strchr(defline, ' ') + 1;
-    m_or_i      = * line_p;
-    mod.mapchar = * (line_p + 2);
-    if ('i' == m_or_i)
-      line_p = line_p + 5;
-    else {
-      md.hitpoints_start = atoi   (line_p + 4);
-      line_p             = strchr (line_p + 4, ' ') + 1; }
-    mod.desc = calloc (strlen (line_p), sizeof(char));
-    memcpy (mod.desc, line_p, strlen(line_p) - 1);
-    if ('i' == m_or_i) {
-      id.map_obj_def = mod;
-      * p_p_id       = malloc (sizeof (struct ItemDef));
-      * * p_p_id     = id;
-      p_p_id         = (struct ItemDef    * *) * p_p_id; }
-    else {
-      md.map_obj_def = mod;
-      * p_p_md       = malloc (sizeof (struct MonsterDef));
-      * * p_p_md     = md;
-      p_p_md         = (struct MonsterDef * *) * p_p_md; } }
-  free(defline);
-  fclose(file);
+    /* 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))
+    {
+        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, &world.score)
+            || 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 interactive mode, try to load world state from savefile.
-  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.monster, file, sizeof(struct Monster), read_map_objects_monsterdata);
-    read_map_objects (&world.item,    file, sizeof(struct Item),    readwrite_map_objects_dummy);
-    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(recordfile, "r");
+            exit_err(0 == file, &world, err_o);
+            exit_err(read_uint32_bigendian(file, &world.seed), &world, err_r);
+        }
 
-  // For non-interactive mode, try to load world state from record file.
-  else {
-    world.turn = 1;
-    if (0 == world.interactive) {
-      file = fopen("record", "r");
-      world.seed = read_uint32_bigendian(file); }
+        /* For interactive-mode in newly started world, generate a start seed
+         * from the current time.
+         */
+        else
+        {
+            world.seed = time(NULL);
+            world.score = 0;
 
-    // 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); } }
+            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);
+        }
+    }
 
-  // Generate map from seed and, if newly generated world, start positions of actors.
-  rrand(1, world.seed);
-  struct Map map = init_map();
-  world.map = &map;
-  if (1 == world.turn) {
-    player.pos = find_passable_pos(&map);
-    void * foo = build_map_objects (&world, &world.monster, 0, 1 + rrand(0,0) % 27, sizeof(struct Monster),
-                                    build_map_objects_monsterdata);
-    foo = build_map_objects (&world, foo, 1, 1 + rrand(0,0) % 9, sizeof(struct Monster),
-                             build_map_objects_monsterdata);
-    build_map_objects (&world, foo, 2, 1 + rrand(0,0) % 3, sizeof(struct Monster),
-                       build_map_objects_monsterdata);
-    foo = build_map_objects (&world, &world.item, 3, 1 + rrand(0,0) % 3, sizeof(struct Item),
-                             build_map_objects_itemdata);
-    build_map_objects (&world, foo, 4, 1 + rrand(0,0) % 3, sizeof(struct Item), build_map_objects_itemdata); }
 
-  // Initialize window system and windows.
-  WINDOW * screen = initscr();
-  noecho();
-  curs_set(0);
-  keypad(screen, TRUE);
-  raw();
-  init_keybindings(&world);
-  struct WinMeta win_meta = init_win_meta(screen);
-  struct Win win_keys = init_win(&win_meta, "Keys", &world, draw_keys_win);
-  struct Win win_map = init_win(&win_meta, "Map", &world, draw_map_win);
-  struct Win win_info = init_win(&win_meta, "Info", &world, draw_info_win);
-  struct Win win_log = init_win(&win_meta, "Log", &world, draw_log_win);
-  win_keys.frame.size.x = 29;
-  win_map.frame.size.x = win_meta.pad.size.x - win_keys.frame.size.x - win_log.frame.size.x - 2;
-  win_info.frame.size.y = 2;
-  win_log.frame.size.y = win_meta.pad.size.y - (2 + win_info.frame.size.y);
-  toggle_window(&win_meta, &win_keys);
-  toggle_window(&win_meta, &win_map);
-  toggle_window(&win_meta, &win_info);
-  toggle_window(&win_meta, &win_log);
+    /* Generate map from seed and, if newly generated world, start positions of
+     * actors.
+     */
+    rrand_seed(world.seed);
+    struct Map map = init_map();
+    world.map = &map;
+    set_cleanup_flag(CLEANUP_MAP);
+    if (1 == world.turn)
+    {
+        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);
+        build_map_objects(&world, foo, 3, 1 + rrand() % 3);
+        foo = build_map_objects(&world, &world.item, 4, 1 + rrand() % 3);
+        build_map_objects(&world, foo, 5, 1 + rrand() % 3);
+    }
 
-  // Replay mode.
-  int key;
-  unsigned char quit_called = 0;
-  unsigned char await_actions = 1;
-  if (0 == world.interactive) {
-    int action;
-    while (1) {
-      if (start_turn == world.turn)
-        start_turn = 0;
-      if (0 == start_turn) {
-        draw_all_wins (&win_meta);
-        key = getch(); }
-      if (1 == await_actions &&
-          (world.turn < start_turn || key == get_action_key(world.keybindings, "wait / next turn")) ) {
-        action = getc(file);
-        if (EOF == action) {
-          start_turn = 0;
-          await_actions = 0; }
-        else if (0 == action)
-          player_wait (&world);
-        else if (NORTH == action)
-          move_player(&world, NORTH);
-        else if (EAST  == action)
-          move_player(&world, EAST);
-        else if (SOUTH == action)
-          move_player(&world, SOUTH);
-        else if (WEST == action)
-          move_player(&world, WEST); }
-      else
-        quit_called = meta_keys(key, &world, &win_meta, &win_keys, &win_map, &win_info, &win_log);
-        if (1 == quit_called)
-          break; } }
+    /* Initialize window system and windows. */
+    WINDOW * screen = initscr();
+    set_cleanup_flag(CLEANUP_NCURSES);
+    noecho();
+    curs_set(0);
+    keypad(screen, TRUE);
+    raw();
+    init_keybindings(&world);
+    set_cleanup_flag(CLEANUP_KEYBINDINGS);
+    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",
+                                   3, 20, &world, draw_info_win);
+    uint16_t height_logwin = win_meta.padframe.size.y
+                             - (2 + win_info.frame.size.y);
+    struct Win win_log = init_win(&win_meta, "Log",
+                                  height_logwin, 20, &world, draw_log_win);
+    uint16_t width_mapwin = win_meta.padframe.size.x - win_keys.frame.size.x
+                             - win_log.frame.size.x - 2;
+    struct Win win_map = init_win(&win_meta, "Map",
+                                  0, width_mapwin, &world, draw_map_win);
+    toggle_window(&win_meta, &win_keys);
+    toggle_window(&win_meta, &win_map);
+    toggle_window(&win_meta, &win_info);
+    toggle_window(&win_meta, &win_log);
 
-  // Interactive mode.
-  else {
-    uint32_t last_turn = 0;
-    while (1) {
-      if (last_turn != world.turn) {
-        save_game(&world);
-        last_turn = world.turn; }
-      if (1 == await_actions && 0 == player.hitpoints)
-        await_actions = 0;
-      draw_all_wins (&win_meta);
-      key = getch();
-      if      (1 == await_actions && key == get_action_key(world.keybindings, "player up"))
-        move_player(&world, NORTH);
-      else if (1 == await_actions && key == get_action_key(world.keybindings, "player right"))
-        move_player(&world, EAST);
-      else if (1 == await_actions && key == get_action_key(world.keybindings, "player down"))
-        move_player(&world, SOUTH);
-      else if (1 == await_actions && key == get_action_key(world.keybindings, "player left"))
-        move_player(&world, WEST);
-      else if (1 == await_actions && key == get_action_key(world.keybindings, "wait / next turn"))
-        player_wait (&world);
-      else
-        quit_called = meta_keys(key, &world, &win_meta, &win_keys, &win_map, &win_info, &win_log);
-        if (1 == quit_called)
-          break; } }
+    /* Replay mode. */
+    int key;
+    uint8_t quit_called = 0;
+    uint8_t await_actions = 1;
+    if (0 == world.interactive)
+    {
+        int action;
+        while (1)
+        {
+            if (start_turn == world.turn)
+            {
+                start_turn = 0;
+            }
+            if (0 == start_turn)
+            {
+                exit_err(draw_all_wins(&win_meta), &world, err_winmem);
+                key = getch();
+            }
+            if (1 == await_actions
+                && (world.turn < start_turn
+                    || key == get_action_key(world.keybindings,
+                                             "wait / next turn")) )
+            {
+                action = getc(file);
+                if (EOF == action)
+                {
+                    start_turn = 0;
+                    await_actions = 0;
+                }
+                else if (0 == action)
+                {
+                    player_wait (&world);
+                }
+                else if (NORTH == action)
+                {
+                    move_player(&world, NORTH);
+                }
+                else if (EAST  == action)
+                {
+                    move_player(&world, EAST);
+                }
+                else if (SOUTH == action)
+                {
+                    move_player(&world, SOUTH);
+                }
+                else if (WEST == action)
+                {
+                    move_player(&world, WEST);
+                }
+            }
+            else
+            {
+                quit_called = meta_keys(key, &world, &win_meta, &win_keys,
+                                             &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);
+                }
+            }
+        }
+    }
 
-  // Clean up and exit.
-  free(map.cells);
-  for (key = 0; key <= world.keyswindata->max; key++)
-    free(world.keybindings[key].name);
-  free(world.keybindings);
-  free(world.keyswindata);
-  free(world.log);
-  endwin();
-  return 0; }
+    /* Interactive mode. */
+    else
+    {
+        uint32_t last_turn = 0;
+        while (1)
+        {
+            if (last_turn != world.turn)
+            {
+                save_game(&world);
+                last_turn = world.turn;
+            }
+            if (1 == await_actions && 0 == player.hitpoints)
+            {
+                await_actions = 0;
+            }
+            draw_all_wins (&win_meta);
+            key = getch();
+            if      (1 == await_actions
+                     && key == get_action_key(world.keybindings,
+                                              "player up"))
+            {
+                move_player(&world, NORTH);
+            }
+            else if (1 == await_actions
+                     && key == get_action_key(world.keybindings,
+                                              "player right"))
+            {
+                move_player(&world, EAST);
+            }
+            else if (1 == await_actions
+                     && key == get_action_key(world.keybindings,
+                                              "player down"))
+            {
+                move_player(&world, SOUTH);
+            }
+            else if (1 == await_actions
+                     && key == get_action_key(world.keybindings,
+                                              "player left"))
+            {
+                move_player(&world, WEST);
+            }
+            else if (1 == await_actions
+                     && key == get_action_key(world.keybindings,
+                                              "wait / next turn"))
+            {
+                player_wait (&world);
+            }
+            else
+            {
+                quit_called = meta_keys(key, &world, &win_meta, &win_keys,
+                                             &win_map, &win_info, &win_log);
+                if (1 == quit_called)
+                {
+                    exit_game(&world);
+                }
+            }
+        }
+    }
+}