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

   1 /* main.c */
   2
   3 #include "main.h"
   4 #include <stdlib.h> /* for atoi(), exit(), EXIT_FAILURE, calloc() */
   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 "windows.h" /* for structs WinMeta, Win, init_win(), init_win_meta(),
  10                       * draw_all_wins()
  11                       */
  12 #include "draw_wins.h" /* for draw_keys_win(), draw_map_win(), draw_info_win(),
  13                         * draw_log_win()
  14                         */
  15 #include "keybindings.h" /* for initkeybindings(), get_action_key() */
  16 #include "readwrite.h" /* for read_uint16_bigendian, read_uint32_bigendian,
  17                         * write_uint32_bigendian
  18                         */
  19 #include "map_objects.h" /* for structs Monster, Item, Player,
  20                           * init_map_object_defs(), read_map_objects(),
  21                           * build_map_objects()
  22                           */
  23 #include "map_object_actions.h" /* for player_wait(), move_player() */
  24 #include "map.h" /* for struct Map, init_map() */
  25 #include "misc.h" /* for update_log(), toggle_window(), exit_game(),
  26                    * find_passable_pos(), meta_keys(), save_game()
  27                    */
  28 #include "yx_uint16.h" /* for dir enum */
  29 #include "rrand.h" /* for rrand(), rrand_seed() */
  30
  31 int main(int argc, char *argv[])
  32 {
  33     struct World world;
  34
  35     /* Read in startup options (i.e. replay option and replay start turn). */
  36     int opt;
  37     uint32_t start_turn;
  38     world.interactive = 1;
  39     while ((opt = getopt(argc, argv, "s::")) != -1)
  40     {
  41         switch (opt)
  42         {
  43             case 's':
  44                 world.interactive = 0;
  45                 start_turn = 0;
  46                 if (optarg)
  47                     start_turn = atoi(optarg);
  48                  break;
  49             default:
  50                 exit(EXIT_FAILURE);
  51         }
  52     }
  53
  54     /* Initialize log, player, monster/item definitions and monsters/items. */
  55     world.log = calloc(1, sizeof(char));
  56     update_log (&world, " ");
  57     struct Player player;
  58     player.hitpoints = 5;
  59     world.player = &player;
  60     world.monster = 0;
  61     world.item = 0;
  62     init_map_object_defs(&world, "defs");
  63
  64     /* For interactive mode, try to load world state from savefile. */
  65     FILE * file;
  66     if (1 == world.interactive && 0 == access("savefile", F_OK))
  67     {
  68         file = fopen("savefile", "r");
  69         world.seed = read_uint32_bigendian(file);
  70         world.turn = read_uint32_bigendian(file);
  71         player.pos.y = read_uint16_bigendian(file) - 1;
  72         player.pos.x = read_uint16_bigendian(file) - 1;
  73         player.hitpoints = fgetc(file);
  74         read_map_objects(&world, &world.monster, file);
  75         read_map_objects(&world, &world.item,    file);
  76         fclose(file);
  77     }
  78
  79     /* For non-interactive mode, try to load world state from record file. */
  80     else
  81     {
  82         world.turn = 1;
  83         if (0 == world.interactive)
  84         {
  85             file = fopen("record", "r");
  86             world.seed = read_uint32_bigendian(file);
  87         }
  88
  89       /* For interactive-mode in newly started world, generate a start seed
  90        * from the current time.
  91        */
  92       else
  93       {
  94           file = fopen("record", "w");
  95           world.seed = time(NULL);
  96           write_uint32_bigendian(world.seed, file);
  97           fclose(file);
  98       }
  99   }
 100
 101     /* Generate map from seed and, if newly generated world, start positions of
 102      * actors.
 103      */
 104     rrand_seed(world.seed);
 105     struct Map map = init_map();
 106     world.map = &map;
 107     if (1 == world.turn)
 108     {
 109         player.pos = find_passable_pos(&map);
 110         void * foo;
 111         foo = build_map_objects(&world, &world.monster, 1, 1 + rrand() % 27);
 112         foo = build_map_objects(&world, foo, 2, 1 + rrand() % 9);
 113         build_map_objects(&world, foo, 3, 1 + rrand() % 3);
 114         foo = build_map_objects(&world, &world.item, 4, 1 + rrand() % 3);
 115         build_map_objects(&world, foo, 5, 1 + rrand() % 3);
 116     }
 117
 118     /* Initialize window system and windows. */
 119     WINDOW * screen = initscr();
 120     noecho();
 121     curs_set(0);
 122     keypad(screen, TRUE);
 123     raw();
 124     init_keybindings(&world);
 125     struct WinMeta win_meta = init_win_meta(screen);
 126     struct Win win_keys = init_win(&win_meta, "Keys", 0, 29, &world, draw_keys_win);
 127     struct Win win_info = init_win(&win_meta, "Info", 2, 20, &world, draw_info_win);
 128     uint16_t height_logwin  = win_meta.padframe.size.y - (2 + win_info.frame.size.y);
 129     struct Win win_log = init_win(&win_meta, "Log",
 130                                   height_logwin, 20, &world, draw_log_win);
 131     uint16_t width_mapwin = win_meta.padframe.size.x - win_keys.frame.size.x
 132                              - win_log.frame.size.x - 2;
 133     struct Win win_map = init_win(&win_meta, "Map",
 134                                   0, width_mapwin, &world, draw_map_win);
 135     toggle_window(&win_meta, &win_keys);
 136     toggle_window(&win_meta, &win_map);
 137     toggle_window(&win_meta, &win_info);
 138     toggle_window(&win_meta, &win_log);
 139
 140     /* Replay mode. */
 141     int key;
 142     unsigned char quit_called = 0;
 143     unsigned char await_actions = 1;
 144     if (0 == world.interactive)
 145     {
 146         int action;
 147         while (1)
 148         {
 149             if (start_turn == world.turn)
 150             {
 151                 start_turn = 0;
 152             }
 153             if (0 == start_turn)
 154             {
 155                 draw_all_wins (&win_meta);
 156                key = getch();
 157             }
 158             if (1 == await_actions
 159                 && (world.turn < start_turn
 160                     || key == get_action_key(world.keybindings,
 161                                              "wait / next turn")) )
 162             {
 163                 action = getc(file);
 164                 if (EOF == action)
 165                 {
 166                     start_turn = 0;
 167                     await_actions = 0;
 168                 }
 169                 else if (0 == action)
 170                 {
 171                     player_wait (&world);
 172                 }
 173                 else if (NORTH == action)
 174                 {
 175                     move_player(&world, NORTH);
 176                 }
 177                 else if (EAST  == action)
 178                 {
 179                     move_player(&world, EAST);
 180                 }
 181                 else if (SOUTH == action)
 182                 {
 183                     move_player(&world, SOUTH);
 184                 }
 185                 else if (WEST == action)
 186                 {
 187                     move_player(&world, WEST);
 188                 }
 189             }
 190             else
 191             {
 192                 quit_called = meta_keys(key, &world, &win_meta, &win_keys,
 193                                              &win_map, &win_info, &win_log);
 194                 if (1 == quit_called)
 195                 {
 196                     exit_game(&world, &map);
 197                 }
 198             }
 199         }
 200     }
 201
 202     /* Interactive mode. */
 203     else
 204     {
 205         uint32_t last_turn = 0;
 206         while (1)
 207         {
 208             if (last_turn != world.turn)
 209             {
 210                 save_game(&world);
 211                 last_turn = world.turn;
 212             }
 213             if (1 == await_actions && 0 == player.hitpoints)
 214             {
 215                 await_actions = 0;
 216             }
 217             draw_all_wins (&win_meta);
 218             key = getch();
 219             if      (1 == await_actions
 220                      && key == get_action_key(world.keybindings,
 221                                               "player up"))
 222             {
 223                 move_player(&world, NORTH);
 224             }
 225             else if (1 == await_actions
 226                      && key == get_action_key(world.keybindings,
 227                                               "player right"))
 228             {
 229                 move_player(&world, EAST);
 230             }
 231             else if (1 == await_actions
 232                      && key == get_action_key(world.keybindings,
 233                                               "player down"))
 234             {
 235                 move_player(&world, SOUTH);
 236             }
 237             else if (1 == await_actions
 238                      && key == get_action_key(world.keybindings,
 239                                               "player left"))
 240             {
 241                 move_player(&world, WEST);
 242             }
 243             else if (1 == await_actions
 244                      && key == get_action_key(world.keybindings,
 245                                               "wait / next turn"))
 246             {
 247                 player_wait (&world);
 248             }
 249             else
 250             {
 251                 quit_called = meta_keys(key, &world, &win_meta, &win_keys,
 252                                              &win_map, &win_info, &win_log);
 253                 if (1 == quit_called)
 254                 {
 255                     exit_game(&world, &map);
 256                 }
 257             }
 258         }
 259     }
 260 }