-#include <stdlib.h>
-#include <stdint.h>
-#include <ncurses.h>
-#include <string.h>
-#include <time.h>
-#include <unistd.h>
-#include "windows.h"
-#include "draw_wins.h"
-#include "roguelike.h"
-#include "keybindings.h"
-#include "readwrite.h"
-
-uint16_t rrand(char use_seed, uint32_t new_seed) {
-// Pseudo-random number generator (LGC algorithm). Use instead of rand() to ensure portable predictability.
- static uint32_t seed;
- if (0 != use_seed)
- seed = new_seed;
- seed = ((seed * 1103515245) + 12345) % 2147483648; // Values as recommended by POSIX.1-2001 (see rand(3)).
- return (seed / 65536); } // Ignore least significant 16 bits (they are less random).
-
-void save_game(struct World * world) {
-// Save game data to game file.
- FILE * file = fopen("savefile", "w");
- write_uint32_bigendian(world->seed, file);
- write_uint32_bigendian(world->turn, file);
- write_uint16_bigendian(world->player->y, file);
- write_uint16_bigendian(world->player->x, file);
- write_uint16_bigendian(world->monster->y, file);
- write_uint16_bigendian(world->monster->x, file);
- fclose(file); }
-
-void toggle_window (struct WinMeta * win_meta, struct Win * win) {
-// Toggle display of window win.
- if (0 != win->frame.curses_win)
- suspend_win(win_meta, win);
- else
- append_win(win_meta, win); }
-
-void scroll_pad (struct WinMeta * win_meta, char dir) {
-// Try to scroll pad left or right.
- if ('+' == dir)
- reset_pad_offset(win_meta, win_meta->pad_offset + 1);
- else if ('-' == dir)
- reset_pad_offset(win_meta, win_meta->pad_offset - 1); }
-
-void growshrink_active_window (struct WinMeta * win_meta, char change) {
-// Grow or shrink active window horizontally or vertically by one cell size.
- if (0 != win_meta->active) {
- uint16_t height = win_meta->active->frame.size.y;
- uint16_t width = win_meta->active->frame.size.x;
- if (change == '-')
- height--;
- else if (change == '+')
- height++;
- else if (change == '_')
- width--;
- else if (change == '*')
- width++;
- resize_active_win (win_meta, height, width); } }
-
-struct Map init_map () {
-// Initialize map with some experimental start values.
- struct Map map;
- map.width = 64;
- map.height = 64;
- map.offset_x = 0;
- map.offset_y = 0;
- uint32_t size = map.width * map.height;
- map.cells = malloc(size);
- uint16_t y, x;
- for (y = 0; y < map.height; y++)
- for (x = 0; x < map.width; x++)
- map.cells[(y * map.width) + x] = '~';
- map.cells[size / 2 + (map.width / 2)] = '.';
- uint32_t repeats, root, curpos;
- for (root = 0; root * root * root < size; root++);
- for (repeats = 0; repeats < size * root; repeats++) {
- y = rrand(0, 0) % map.height;
- x = rrand(0, 0) % map.width;
- curpos = y * map.width + x;
- if ('~' == map.cells[curpos] &&
- ( (curpos >= map.width && '.' == map.cells[curpos - map.width])
- || (curpos < map.width * (map.height-1) && '.' == map.cells[curpos + map.width])
- || (curpos > 0 && curpos % map.width != 0 && '.' == map.cells[curpos-1])
- || (curpos < (map.width * map.height) && (curpos+1) % map.width != 0 && '.' == map.cells[curpos+1])))
- map.cells[y * map.width + x] = '.'; }
- return map; }
-
-void map_scroll (struct Map * map, char dir) {
-// Scroll map into direction dir if possible by changing the offset.
- if ('n' == dir && map->offset_y > 0)
- map->offset_y--;
- else if ('s' == dir)
- map->offset_y++;
- else if ('w' == dir && map->offset_x > 0)
- map->offset_x--;
- else if ('e' == dir)
- map->offset_x++; }
-
-void next_turn (struct World * world) {
-// Increment turn and move enemy.
- world->turn++;
- rrand(1, world->seed * world->turn);
- char d = rrand(0, 0) % 5;
- uint16_t ty = world->monster->y;
- uint16_t tx = world->monster->x;
- if (1 == d)
- ty++;
- else if (2 == d)
- ty--;
- else if (3 == d)
- tx++;
- else if (4 == d)
- tx--;
- if (tx == world->player->x && ty == world->player->y)
- update_log(world, "\nThe monster hits you.");
- else if (is_passable(world->map, ty, tx)) {
- world->monster->y = ty;
- world->monster->x = tx; } }
-
-void update_log (struct World * world, char * text) {
-// Update log with new text to be appended.
- char * new_text;
- uint16_t len_old = strlen(world->log);
- uint16_t len_new = strlen(text);
- uint16_t len_whole = len_old + len_new + 1;
- new_text = calloc(len_whole, sizeof(char));
- memcpy(new_text, world->log, len_old);
- memcpy(new_text + len_old, text, len_new);
- free(world->log);
- world->log = new_text; }
-
-char is_passable (struct Map * map, uint16_t y, uint16_t x) {
-// Check if coordinate on (or beyond) map is accessible to movement.
- char passable = 0;
- if (0 <= x && x < map->width && 0 <= y && y < map->height)
- if ('.' == map->cells[y * map->width + x])
- passable = 1;
- return passable; }
-
-void record_action (char action) {
-// Append action to game record file.
- FILE * file = fopen("record", "a");
- fputc(action, file);
- fclose(file); }
-
-void move_player (struct World * world, char d) {
-// Move player in direction d, increment turn counter and update log.
- static char prev = 0;
- char success = 0;
- char * dir;
- uint16_t ty = world->player->y;
- uint16_t tx = world->player->x;
- if ('s' == d) {
- dir = "south";
- ty++; }
- if ('n' == d) {
- dir = "north";
- ty--; }
- if ('w' == d) {
- dir = "west";
- tx--; }
- if ('e' == d) {
- dir = "east";
- tx++; }
- if (ty == world->monster->y && tx == world->monster->x)
- success = 2;
- else if (is_passable(world->map, ty, tx)) {
- success = 1;
- world->player->y = ty;
- world->player->x = tx; }
- if (success * d == prev)
- update_log (world, ".");
- else {
- if (2 == success)
- update_log (world, "\nYou hit the monster.");
- else {
- char * msg = calloc(25, sizeof(char));
- char * msg_content = "You fail to move";
- if (1 == success)
- msg_content = "You move";
- sprintf(msg, "\n%s %s.", msg_content, dir);
- update_log (world, msg);
- free(msg); } }
- prev = success * d;
- if (1 == world->interactive)
- record_action(d);
- next_turn (world); }
-
-void player_wait (struct World * world) {
-// Make player wait one turn.
- if (1 == world->interactive)
- record_action(0);
- next_turn (world);
- update_log (world, "\nYou wait."); }
-
-unsigned char meta_keys(int key, struct World * world, struct WinMeta * win_meta, struct Win * win_keys,
- struct Win * win_map, struct Win * win_info, struct Win * win_log) {
-// Call some meta program / window management actions dependent on key. Return 1 to signal quitting.
- if (key == get_action_key(world->keybindings, "quit"))
- return 1;
- else if (key == get_action_key(world->keybindings, "scroll pad right"))
- scroll_pad (win_meta, '+');
- else if (key == get_action_key(world->keybindings, "scroll pad left"))
- scroll_pad (win_meta, '-');
- else if (key == get_action_key(world->keybindings, "toggle keys window"))
- toggle_window(win_meta, win_keys);
- else if (key == get_action_key(world->keybindings, "toggle map window"))
- toggle_window(win_meta, win_map);
- else if (key == get_action_key(world->keybindings, "toggle info window"))
- toggle_window(win_meta, win_info);
- else if (key == get_action_key(world->keybindings, "toggle log window"))
- toggle_window(win_meta, win_log);
- else if (key == get_action_key(world->keybindings, "cycle forwards"))
- cycle_active_win(win_meta, 'n');
- else if (key == get_action_key(world->keybindings, "cycle backwards"))
- cycle_active_win(win_meta, 'p');
- else if (key == get_action_key(world->keybindings, "shift forwards"))
- shift_active_win(win_meta, 'f');
- else if (key == get_action_key(world->keybindings, "shift backwards"))
- shift_active_win(win_meta, 'b');
- else if (key == get_action_key(world->keybindings, "grow horizontally"))
- growshrink_active_window(win_meta, '*');
- else if (key == get_action_key(world->keybindings, "shrink horizontally"))
- growshrink_active_window(win_meta, '_');
- else if (key == get_action_key(world->keybindings, "grow vertically"))
- growshrink_active_window(win_meta, '+');
- else if (key == get_action_key(world->keybindings, "shrink vertically"))
- growshrink_active_window(win_meta, '-');
- else if (key == get_action_key(world->keybindings, "save keys"))
- save_keybindings(world);
- else if (key == get_action_key(world->keybindings, "keys nav up"))
- keyswin_move_selection (world, 'u');
- else if (key == get_action_key(world->keybindings, "keys nav down"))
- keyswin_move_selection (world, 'd');
- else if (key == get_action_key(world->keybindings, "keys mod"))
- keyswin_mod_key (world, win_meta);
- else if (key == get_action_key(world->keybindings, "map up"))
- map_scroll (world->map, 'n');
- else if (key == get_action_key(world->keybindings, "map down"))
- map_scroll (world->map, 's');
- else if (key == get_action_key(world->keybindings, "map right"))
- map_scroll (world->map, 'e');
- else if (key == get_action_key(world->keybindings, "map left"))
- map_scroll (world->map, 'w');
- return 0; }
-
-int main (int argc, char *argv[]) {
- struct World world;
- world.interactive = 1;
- int opt;
- uint32_t start_turn;
- 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); } }
-
- world.log = calloc(1, sizeof(char));
- update_log (&world, " ");
- struct Player player;
- world.player = &player;
- struct Monster monster;
- world.monster = &monster;
- FILE * file;
- 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.y = read_uint16_bigendian(file);
- player.x = read_uint16_bigendian(file);
- monster.y = read_uint16_bigendian(file);
- monster.x = read_uint16_bigendian(file);
- fclose(file); }
- else {
- world.turn = 1;
- if (0 == world.interactive) {
- file = fopen("record", "r");
- world.seed = read_uint32_bigendian(file); }
- else {
- file = fopen("record", "w");
- world.seed = time(NULL);
- write_uint32_bigendian(world.seed, file);
- fclose(file); } }
- rrand(1, world.seed);
- struct Map map = init_map();
- world.map = ↦
- if (1 == world.turn) {
- for (player.y = player.x = 0; 0 == is_passable(&map, player.y, player.x);) {
- player.y = rrand(0, 0) % map.height;
- player.x = rrand(0, 0) % map.width; }
- for (monster.y = monster.x = 0; 0 == is_passable(&map, monster.y, monster.x);) {
- monster.y = rrand(0, 0) % map.height;
- monster.x = rrand(0, 0) % map.width; } }
-
- 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 = 1;
- win_log.frame.size.y = win_meta.pad.size.y - 3;
- toggle_window(&win_meta, &win_keys);
- toggle_window(&win_meta, &win_map);
- toggle_window(&win_meta, &win_info);
- toggle_window(&win_meta, &win_log);
-
- int key;
- unsigned char quit_called = 0;
- if (0 == world.interactive) {
- unsigned char still_reading_file = 1;
- 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 == still_reading_file &&
- (world.turn < start_turn || key == get_action_key(world.keybindings, "wait / next turn")) ) {
- action = getc(file);
- if (EOF == action) {
- start_turn = 0;
- still_reading_file = 0; }
- else if (0 == action)
- player_wait (&world);
- else if ('s' == action)
- move_player(&world, 's');
- else if ('n' == action)
- move_player(&world, 'n');
- else if ('e' == action)
- move_player(&world, 'e');
- else if ('w' == action)
- move_player(&world, 'w'); }
- else
- quit_called = meta_keys(key, &world, &win_meta, &win_keys, &win_map, &win_info, &win_log);
- if (1 == quit_called)
- break; } }
- else {
- uint32_t last_turn = 0;
- while (1) {
- if (last_turn != world.turn) {
- save_game(&world);
- last_turn = world.turn; }
- draw_all_wins (&win_meta);
- key = getch();
- if (key == get_action_key(world.keybindings, "player down"))
- move_player(&world, 's');
- else if (key == get_action_key(world.keybindings, "player up"))
- move_player(&world, 'n');
- else if (key == get_action_key(world.keybindings, "player right"))
- move_player(&world, 'e');
- else if (key == get_action_key(world.keybindings, "player left"))
- move_player(&world, 'w');
- else if (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; } }
-
- 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; }