plomlompom.com Git - plomrogue/blob - src/main.c

   1 /* main.c */
   2
   3 #include "main.h" /* for world global */
   4 #include <stdlib.h> /* for atoi(), exit(), EXIT_FAILURE */
   5 #include <stdio.h> /* for FILE typedef, F_OK */
   6 #include <ncurses.h> /* for initscr(), noecho(), curs_set(), keypad(), raw() */
   7 #include <time.h> /* for time() */
   8 #include <unistd.h> /* for getopt(), optarg */
   9 #include <stdint.h> /* for uint32_t */
  10 #include "windows.h" /* for structs WinMeta, Win, init_win_meta(),
  11                       * draw_all_wins()
  12                       */
  13 #include "readwrite.h" /* for read_uint32_bigendian](),
  14                         * write_uint32_bigendian(), try_fopen(), try_fclose(),
  15                         * try_fclose_unlink_rename()
  16                         */
  17 #include "map_objects.h" /* for structs MapObj, init_map_object_defs(),
  18                           * build_map_objects(), get_player()
  19                           */
  20 #include "map.h" /* for struct Map, init_map() */
  21 #include "misc.h" /* for update_log(), find_passable_pos(), save_game(),
  22                    * try_calloc(), check_tempfile(), check_xor_files(),
  23                    * load_interface_conf(), load_game()
  24                    */
  25 #include "wincontrol.h" /* get_win_by_id(), get_winconf_by_win() */
  26 #include "rrand.h" /* for rrand(), rrand_seed() */
  27 #include "rexit.h" /* for exit_game(), exit_err() */
  28 #include "command_db.h" /* for init_command_db(), is_command_id_shortdsc() */
  29 #include "control.h" /* for control_by_id(), player_control(),
  30                       * get_available_keycode_to_action()
  31                       */
  32 #include "map_object_actions.h" /* for init_map_object_actions() */
  33
  34
  35
  36 int main(int argc, char *argv[])
  37 {
  38     char * f_name = "main()";
  39     world.turn = 0;        /* Turns to 1 when map and objects are initalized. */
  40
  41     /* Initialize commands and map object actions. */
  42     init_command_db();
  43     set_cleanup_flag(CLEANUP_COMMAND_DB);
  44     init_map_object_actions();
  45     set_cleanup_flag(CLEANUP_MAPOBJACTS);
  46
  47     /* Check for corrupted savefile / recordfile savings. */
  48     char * recordfile = "record";
  49     char * savefile = "savefile";
  50     char * recordfile_tmp = "record_tmp";
  51     char * savefile_tmp   = "savefile_tmp";
  52     check_files_xor(savefile, recordfile);
  53     check_tempfile(recordfile_tmp);
  54     check_tempfile(savefile_tmp);
  55     check_tempfile("config/windows/Win_tmp_k");
  56     check_tempfile("config/windows/Win_tmp_m");
  57     check_tempfile("config/windows/Win_tmp_i");
  58     check_tempfile("config/windows/Win_tmp_l");
  59     check_tempfile("config/windows/toggle_order_tmp");
  60
  61     /* Read in startup options (i.e. replay option and replay start turn). */
  62     int opt;
  63     uint32_t start_turn;
  64     world.interactive = 1;
  65     while ((opt = getopt(argc, argv, "s::")) != -1)
  66     {
  67         switch (opt)
  68         {
  69             case 's':
  70             {
  71                 world.interactive = 0;
  72                 start_turn = 0;
  73                 if (optarg)
  74                 {
  75                     start_turn = atoi(optarg);
  76                 }
  77                 break;
  78             }
  79             default:
  80             {
  81                 exit(EXIT_FAILURE);
  82             }
  83         }
  84     }
  85
  86     /* Initialize log and map object definitions. */
  87     world.score = 0;
  88     world.log = try_calloc(1, sizeof(char), f_name);
  89     set_cleanup_flag(CLEANUP_LOG);
  90     update_log(" ");
  91     init_map_object_defs("config/defs");
  92     set_cleanup_flag(CLEANUP_MAP_OBJECT_DEFS);
  93     world.map_obj_count = 0;
  94
  95     /* For interactive mode, try to load world state from savefile. */
  96     char * err_r = "Trouble loading game (in main()) / "
  97                    "reading from opened 'savefile'.";
  98     FILE * file;
  99     if (1 == world.interactive && 0 == access(savefile, F_OK))
 100     {
 101         load_game();
 102         set_cleanup_flag(CLEANUP_MAP_OBJECTS);
 103     }
 104
 105     /* For non-interactive mode, try to load world state from record file. */
 106     else
 107     {
 108         err_r = "Trouble reading from 'record' file (read_uint32_bigendian() "
 109                 "in main()).";
 110         if (0 == world.interactive)
 111         {
 112             file = try_fopen(recordfile, "r", f_name);
 113             exit_err(read_uint32_bigendian(file, &world.seed), err_r);
 114         }
 115
 116         /* For interactive-mode in newly started world, generate a start seed
 117          * from the current time.
 118          */
 119         else
 120         {
 121             world.seed = time(NULL);
 122
 123             char * err_w = "Trouble recording new seed "
 124                            "(write_uint32_bigendian() in main()) / writing to "
 125                            "file 'record_tmp'.";
 126             file = try_fopen(recordfile_tmp, "w", f_name);
 127             exit_err(write_uint32_bigendian(world.seed, file), err_w);
 128             try_fclose_unlink_rename(file, recordfile_tmp, recordfile, f_name);
 129         }
 130     }
 131
 132     /* Generate map from seed and, if newly generated world, start positions of
 133      * actors.
 134      */
 135     rrand_seed(world.seed);
 136     struct Map map = init_map();
 137     world.map = &map;
 138     set_cleanup_flag(CLEANUP_MAP);
 139     if (0 == world.turn)
 140     {
 141         world.map_objs = NULL;
 142         add_map_objects(0, 1);
 143         add_map_objects(1, 1 + rrand() % 27);
 144         add_map_objects(2, 1 + rrand() % 9);
 145         add_map_objects(3, 1 + rrand() % 3);
 146         add_map_objects(4, 1 + rrand() % 3);
 147         add_map_objects(5, 1 + rrand() % 3);
 148         set_cleanup_flag(CLEANUP_MAP_OBJECTS);
 149         world.turn = 1;
 150     }
 151
 152     /* Initialize window system and windows. */
 153     WINDOW * screen = initscr();
 154     set_cleanup_flag(CLEANUP_NCURSES);
 155     noecho();
 156     curs_set(0);
 157     keypad(screen, TRUE);
 158     raw();
 159     init_win_meta(screen);
 160     set_cleanup_flag(CLEANUP_WIN_META);
 161     load_interface_conf();
 162     set_cleanup_flag(CLEANUP_INTERFACE_CONF);
 163
 164     /* Focus map on player. */
 165     struct MapObj * player = get_player();
 166     struct Win * win_map = get_win_by_id('m');
 167     win_map->center = player->pos;
 168
 169     /* Initialize player's inventory selection index to start position. */
 170     world.inventory_select = 0;
 171
 172     /* Replay mode. */
 173     int key;
 174     struct WinConf * wc;
 175     if (0 == world.interactive)
 176     {
 177         int action = 0;
 178         if (0 != start_turn)
 179         {
 180             while (world.turn != start_turn)
 181             {
 182                 action = getc(file);
 183                 if (EOF == action)
 184                 {
 185                     break;
 186                 }
 187                 if (   is_command_id_shortdsc(action, "drop")
 188                     || is_command_id_shortdsc(action, "use"))
 189                 {
 190                     world.inventory_select = getc(file);
 191                 }
 192                 player_control_by_id(action);
 193             }
 194         }
 195         while (1)
 196         {
 197             draw_all_wins();
 198             key = getch();
 199             wc = get_winconf_by_win(world.wmeta->active);
 200             if  (   (1 == wc->view && wingeom_control(key))
 201                  || (2 == wc->view && winkeyb_control(key)))
 202             {
 203                 continue;
 204             }
 205             if (   EOF != action
 206                 && key == get_available_keycode_to_action("wait"))
 207             {
 208                 action = getc(file);
 209                 if (EOF != action)
 210                 {
 211                     if (   is_command_id_shortdsc(action, "drop")
 212                         || is_command_id_shortdsc(action, "use"))
 213                     {
 214                         world.inventory_select = getc(file);
 215                     }
 216                     player_control_by_id(action);
 217                 }
 218             }
 219             else if (meta_control(key))
 220             {
 221                 try_fclose(file, f_name);
 222                 exit_game();
 223             }
 224         }
 225     }
 226
 227     /* Interactive mode. */
 228     else
 229     {
 230         while (1)
 231         {
 232             save_game();
 233             draw_all_wins();
 234             key = getch();
 235             wc = get_winconf_by_win(world.wmeta->active);
 236             if  (   (1 == wc->view && wingeom_control(key))
 237                  || (2 == wc->view && winkeyb_control(key))
 238                  || (0 != player->lifepoints && player_control_by_key(key)))
 239             {
 240                 continue;
 241             }
 242             if (meta_control(key))
 243             {
 244                 exit_game();
 245             }
 246         }
 247     }
 248 }