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                           * read_map_objects_monsterdata,
  22                           * read_map_objects_itemdata, build_map_objects()
  23                           */
  24 #include "map_object_actions.h" /* for player_wait(), move_player() */
  25 #include "map.h" /* for struct Map, init_map() */
  26 #include "misc.h" /* for rrand(), update_log(), toggle_window(), exit_game(),
  27                    * find_passable_pos(), meta_keys(), save_game()
  28                    */
  29 #include "yx_uint16.h" /* for dir enum */
  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.monster, file, sizeof(struct Monster),
  75                           read_map_objects_monsterdata);
  76         read_map_objects(&world.item,    file, sizeof(struct Item), NULL);
  77         fclose(file);
  78     }
  79
  80     /* For non-interactive mode, try to load world state from record file. */
  81     else
  82     {
  83         world.turn = 1;
  84         if (0 == world.interactive)
  85         {
  86             file = fopen("record", "r");
  87             world.seed = read_uint32_bigendian(file);
  88         }
  89
  90       /* For interactive-mode in newly started world, generate a start seed
  91        * from the current time.
  92        */
  93       else
  94       {
  95           file = fopen("record", "w");
  96           world.seed = time(NULL);
  97           write_uint32_bigendian(world.seed, file);
  98           fclose(file);
  99       }
 100   }
 101
 102     /* Generate map from seed and, if newly generated world, start positions of
 103      * actors.
 104      */
 105     rrand(1, world.seed);
 106     struct Map map = init_map();
 107     world.map = &map;
 108     if (1 == world.turn)
 109     {
 110         player.pos = find_passable_pos(&map);
 111         void * foo = build_map_objects(&world, &world.monster,
 112                                        0, 1 + rrand(0,0) % 27,
 113                                        sizeof(struct Monster),
 114                                        build_map_objects_monsterdata);
 115         foo = build_map_objects(&world, foo, 1, 1 + rrand(0,0) % 9,
 116                                 sizeof(struct Monster),
 117                                 build_map_objects_monsterdata);
 118         build_map_objects(&world, foo, 2, 1 + rrand(0,0) % 3,
 119                           sizeof(struct Monster),
 120                           build_map_objects_monsterdata);
 121         foo = build_map_objects(&world, &world.item, 3, 1 + rrand(0,0) % 3,
 122                                 sizeof(struct Item),
 123                                 build_map_objects_itemdata);
 124         build_map_objects(&world, foo, 4, 1 + rrand(0,0) % 3,
 125                           sizeof(struct Item), build_map_objects_itemdata);
 126     }
 127
 128     /* Initialize window system and windows. */
 129     WINDOW * screen = initscr();
 130     noecho();
 131     curs_set(0);
 132     keypad(screen, TRUE);
 133     raw();
 134     init_keybindings(&world);
 135     struct WinMeta win_meta = init_win_meta(screen);
 136     struct Win win_keys = init_win(&win_meta, "Keys", &world, draw_keys_win);
 137     struct Win win_map = init_win(&win_meta, "Map", &world, draw_map_win);
 138     struct Win win_info = init_win(&win_meta, "Info", &world, draw_info_win);
 139     struct Win win_log = init_win(&win_meta, "Log", &world, draw_log_win);
 140     win_keys.frame.size.x = 29;
 141     win_map.frame.size.x = win_meta.padframe.size.x - win_keys.frame.size.x
 142                            - win_log.frame.size.x - 2;
 143     win_info.frame.size.y = 2;
 144     win_log.frame.size.y = win_meta.padframe.size.y
 145                            - (2 + win_info.frame.size.y);
 146     toggle_window(&win_meta, &win_keys);
 147     toggle_window(&win_meta, &win_map);
 148     toggle_window(&win_meta, &win_info);
 149     toggle_window(&win_meta, &win_log);
 150
 151     /* Replay mode. */
 152     int key;
 153     unsigned char quit_called = 0;
 154     unsigned char await_actions = 1;
 155     if (0 == world.interactive)
 156     {
 157         int action;
 158         while (1)
 159         {
 160             if (start_turn == world.turn)
 161             {
 162                 start_turn = 0;
 163             }
 164             if (0 == start_turn)
 165             {
 166                 draw_all_wins (&win_meta);
 167                key = getch();
 168             }
 169             if (1 == await_actions
 170                 && (world.turn < start_turn
 171                     || key == get_action_key(world.keybindings,
 172                                              "wait / next turn")) )
 173             {
 174                 action = getc(file);
 175                 if (EOF == action)
 176                 {
 177                     start_turn = 0;
 178                     await_actions = 0;
 179                 }
 180                 else if (0 == action)
 181                 {
 182                     player_wait (&world);
 183                 }
 184                 else if (NORTH == action)
 185                 {
 186                     move_player(&world, NORTH);
 187                 }
 188                 else if (EAST  == action)
 189                 {
 190                     move_player(&world, EAST);
 191                 }
 192                 else if (SOUTH == action)
 193                 {
 194                     move_player(&world, SOUTH);
 195                 }
 196                 else if (WEST == action)
 197                 {
 198                     move_player(&world, WEST);
 199                 }
 200             }
 201             else
 202             {
 203                 quit_called = meta_keys(key, &world, &win_meta, &win_keys,
 204                                              &win_map, &win_info, &win_log);
 205                 if (1 == quit_called)
 206                 {
 207                     exit_game(&world, &map);
 208                 }
 209             }
 210         }
 211     }
 212
 213     /* Interactive mode. */
 214     else
 215     {
 216         uint32_t last_turn = 0;
 217         while (1)
 218         {
 219             if (last_turn != world.turn)
 220             {
 221                 save_game(&world);
 222                 last_turn = world.turn;
 223             }
 224             if (1 == await_actions && 0 == player.hitpoints)
 225             {
 226                 await_actions = 0;
 227             }
 228             draw_all_wins (&win_meta);
 229             key = getch();
 230             if      (1 == await_actions
 231                      && key == get_action_key(world.keybindings,
 232                                               "player up"))
 233             {
 234                 move_player(&world, NORTH);
 235             }
 236             else if (1 == await_actions
 237                      && key == get_action_key(world.keybindings,
 238                                               "player right"))
 239             {
 240                 move_player(&world, EAST);
 241             }
 242             else if (1 == await_actions
 243                      && key == get_action_key(world.keybindings,
 244                                               "player down"))
 245             {
 246                 move_player(&world, SOUTH);
 247             }
 248             else if (1 == await_actions
 249                      && key == get_action_key(world.keybindings,
 250                                               "player left"))
 251             {
 252                 move_player(&world, WEST);
 253             }
 254             else if (1 == await_actions
 255                      && key == get_action_key(world.keybindings,
 256                                               "wait / next turn"))
 257             {
 258                 player_wait (&world);
 259             }
 260             else
 261             {
 262                 quit_called = meta_keys(key, &world, &win_meta, &win_keys,
 263                                              &win_map, &win_info, &win_log);
 264                 if (1 == quit_called)
 265                 {
 266                     exit_game(&world, &map);
 267                 }
 268             }
 269         }
 270     }
 271 }