+/* misc.c */
+
#include "misc.h"
-#include <stdlib.h>
-#include <string.h>
-#include "windows.h"
-#include "keybindings.h"
-#include "readwrite.h"
-#include "objects_on_map.h"
-#include "map.h"
-#include "main.h"
-
-extern 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).
-
-extern void update_log (struct World * world, char * text) {
-// Update log by appending text, or by appending a "." if text is the same as the last one.
- static char * last_msg;
- if (0 == last_msg)
- last_msg = calloc(1, sizeof(char));
- char * new_text;
- uint16_t len_old = strlen(world->log);
- if (0 == strcmp(last_msg, text)) {
- uint16_t len_whole = len_old + 1;
- new_text = calloc(len_whole + 1, sizeof(char));
- memcpy(new_text, world->log, len_old);
- memcpy(new_text + len_old, ".", 1); }
- else {
- 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);
- last_msg = calloc(len_new + 1, sizeof(char));
- memcpy(last_msg, text, len_new); }
- free(world->log);
- world->log = new_text; }
-
-extern uint16_t center_offset (uint16_t pos, uint16_t mapsize, uint16_t framesize) {
-// Return the offset for display of a map inside a frame centered on pos.
- uint16_t offset = 0;
- if (mapsize > framesize) {
- if (pos > framesize / 2) {
- if (pos < mapsize - (framesize / 2))
- offset = pos - (framesize / 2);
- else
- offset = mapsize - framesize; } }
- return offset; }
-
-extern void turn_over (struct World * world, char action) {
-// Record action in game record file, increment turn and move enemy.
- if (1 == world->interactive) {
- FILE * file = fopen("record", "a");
- fputc(action, file);
- fclose(file); }
- world->turn++;
- rrand(1, world->seed * world->turn);
- struct Monster * monster;
- for (monster = world->monster; monster != 0; monster = monster->cmo.next)
- move_monster(world, monster); }
-
-extern 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->pos.y + 1, file);
- write_uint16_bigendian(world->player->pos.x + 1, file);
- fputc(world->player->hitpoints, file);
- write_map_objects (world->monster, file, write_map_objects_monsterdata);
- write_map_objects (world->item, file, readwrite_map_objects_dummy);
- fclose(file); }
-
-extern 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); }
-
-extern 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); }
-
-extern 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) {
- struct yx_uint16 size = win_meta->active->frame.size;
- if (change == '-') size.y--;
- else if (change == '+') size.y++;
- else if (change == '_') size.x--;
- else if (change == '*') size.x++;
- resize_active_win (win_meta, size); } }
-
-extern 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, NORTH, win_map->frame.size);
- else if (key == get_action_key(world->keybindings, "map down"))
- map_scroll (world->map, SOUTH, win_map->frame.size);
- else if (key == get_action_key(world->keybindings, "map right"))
- map_scroll (world->map, EAST, win_map->frame.size);
- else if (key == get_action_key(world->keybindings, "map left"))
- map_scroll (world->map, WEST, win_map->frame.size);
- else if (key == get_action_key(world->keybindings, "map center player"))
- map_center_player (world->map, world->player, win_map->frame.size);
- return 0; }
+#include <errno.h> /* for errno */
+#include <unistd.h> /* for unlink(), acess() */
+#include <stdlib.h> /* for size_t, calloc(), free() */
+#include <string.h> /* for strlen(), strcmp(), memcpy() */
+#include <stdint.h> /* for uint8_t, uint16_t */
+#include "readwrite.h" /* for try_fopen(), try_fclose(), textfile_sizes(),
+ * try_fputc(), try_fgetc()
+ */
+#include "map_objects.h" /* for struct MapObj, get_player(), read_map_objects(),
+ * write_map_objects()
+ */
+#include "map_object_actions.h" /* for struct MapObjAct */
+#include "ai.h" /* for pretty_dumb_ai() */
+#include "map.h" /* for Map struct, is_passable() */
+#include "main.h" /* for world global */
+#include "yx_uint16.h" /* for yx_uint16 struct */
+#include "rexit.h" /* for exit_err(), exit_trouble() */
+#include "wincontrol.h" /* for init_winconfs(), init_wins(), free_winconfs(),
+ * sorted_wintoggle_and_activate()
+ */
+#include "windows.h" /* for suspend_win() */
+#include "command_db.h" /* for is_command_id_shortdsc() */
+
+
+
+extern uint16_t rrand()
+{
+ /* Constants as recommended by POSIX.1-2001 (see man page rand(3)). */
+ world.seed = ((world.seed * 1103515245) + 12345) % 4294967296;
+ return (world.seed >> 16); /* Ignore less random least significant bits. */
+}
+
+
+
+extern void * try_malloc(size_t size, char * f)
+{
+ void * p = malloc(size);
+ exit_trouble(NULL == p, f, "malloc()");
+ return p;
+}
+
+
+
+extern void * try_calloc(size_t size1, size_t size2, char * f)
+{
+ void * p = calloc(size1, size2);
+ exit_trouble(NULL == p, f, "calloc()");
+ return p;
+}
+
+
+
+extern void check_files_xor(char * p1, char * p2)
+{
+ char * msg1 = "A file '";
+ char * msg2 = "' exists, but no file '";
+ char * msg3 = "'. If everything was in order, both or noe would exist. "
+ "The game won't start until this is corrected.";
+ uint16_t size = strlen(msg1) + strlen(p1) + strlen(msg2) + strlen(p2)
+ + strlen(msg3);
+ char msg[size];
+ if (!access(p1, F_OK) && access(p2, F_OK))
+ {
+ sprintf(msg, "%s%s%s%s%s", msg1, p1, msg2, p2, msg3);
+ errno = 0;
+ exit_err(1, msg);
+ }
+ else if (access(p1, F_OK) && !access(p2, F_OK))
+ {
+ sprintf(msg, "%s%s%s%s%s", msg1, p2, msg2, p1, msg3);
+ errno = 0;
+ exit_err(1, msg);
+ }
+}
+
+
+
+extern void check_tempfile(char * path)
+{
+ char * msg1 = "A file '";
+ char * msg2 = "' exists, probably from a corrupted previous file saving "
+ "process. To avoid corruption of game files, the game won't "
+ "start until it is removed or renamed.";
+ uint16_t size = strlen(msg1) + strlen(path) + strlen(msg2);
+ char msg[size];
+ sprintf(msg, "%s%s%s", msg1, path, msg2);
+ exit_err(!access(path, F_OK), msg);
+}
+
+
+
+extern void save_interface_conf()
+{
+ save_keybindings("config/keybindings_global", &world.kb_global);
+ save_keybindings("config/keybindings_wingeom", &world.kb_wingeom);
+ save_keybindings("config/keybindings_winkeys", &world.kb_winkeys);
+ save_win_configs();
+}
+
+
+
+extern void load_interface_conf()
+{
+ init_keybindings("config/keybindings_global", &world.kb_global);
+ init_keybindings("config/keybindings_wingeom", &world.kb_wingeom);
+ init_keybindings("config/keybindings_winkeys", &world.kb_winkeys);
+ init_winconfs();
+ init_wins();
+ sorted_wintoggle_and_activate();
+}
+
+
+
+extern void unload_interface_conf()
+{
+ free_keybindings(world.kb_global.kbs);
+ free_keybindings(world.kb_wingeom.kbs);
+ free_keybindings(world.kb_winkeys.kbs);
+ while (0 != world.wmeta->active)
+ {
+ suspend_win(world.wmeta->active);
+ }
+ free_winconfs();
+}
+
+
+
+extern void reload_interface_conf()
+{
+ unload_interface_conf();
+ load_interface_conf();
+}
+
+
+
+extern void update_log(char * text)
+{
+ char * f_name = "update_log()";
+ static char * last_msg; /* TODO: valgrind is dissatisfied */
+ if (0 == last_msg) /* with this calloc'd pointer not */
+ { /* being freed. Rectify this? */
+ last_msg = try_calloc(1, sizeof(char), f_name);
+ }
+ char * new_text;
+ uint16_t len_old = strlen(world.log);
+ if (0 == strcmp(last_msg, text))
+ {
+ uint16_t len_whole = len_old + 1;
+ new_text = try_calloc(len_whole + 1, sizeof(char), f_name);
+ memcpy(new_text, world.log, len_old);
+ memcpy(new_text + len_old, ".", 1);
+ }
+ else
+ {
+ uint16_t len_new = strlen(text);
+ uint16_t len_whole = len_old + len_new + 1;
+ new_text = try_calloc(len_whole, sizeof(char), f_name);
+ memcpy(new_text, world.log, len_old);
+ memcpy(new_text + len_old, text, len_new);
+ last_msg = try_calloc(len_new + 1, sizeof(char), f_name);
+ memcpy(last_msg, text, len_new);
+ }
+ free(world.log);
+ world.log = new_text;
+}
+
+
+
+extern uint16_t center_offset(uint16_t pos, uint16_t mapsize,
+ uint16_t framesize)
+{
+ uint16_t offset = 0;
+ if (mapsize > framesize)
+ {
+ if (pos > framesize / 2)
+ {
+ if (pos < mapsize - (framesize / 2))
+ {
+ offset = pos - (framesize / 2);
+ }
+ else
+ {
+ offset = mapsize - framesize;
+ }
+ }
+ }
+ return offset;
+}
+
+
+
+extern void turn_over(char action)
+{
+ char * f_name = "turn_over()";
+
+ char * recordfile_tmp = "record_tmp";
+ char * recordfile = "record";
+ if (1 == world.interactive)
+ {
+ FILE * file_old = try_fopen(recordfile, "r", f_name);
+ FILE * file_new = try_fopen(recordfile_tmp, "w", f_name);
+ int c = try_fgetc(file_old, f_name);
+ while (EOF != c)
+ {
+ try_fputc((uint8_t) c, file_new, f_name);
+ c = try_fgetc(file_old, f_name);
+ }
+ try_fclose(file_old, f_name);
+ try_fputc(action, file_new, f_name);
+ if ( is_command_id_shortdsc(action, "drop")
+ || is_command_id_shortdsc(action, "use"))
+ {
+ try_fputc(world.inventory_select, file_new, f_name);
+ }
+ try_fclose_unlink_rename(file_new, recordfile_tmp, recordfile, f_name);
+ }
+
+ struct MapObj * player = get_player();
+ struct MapObj * map_object = player;
+ uint8_t first_round = 1;
+ while (0 < player->lifepoints)
+ {
+ if (NULL == map_object)
+ {
+ world.turn++;
+ map_object = world.map_objs;
+ }
+ if (0 < map_object->lifepoints) /* map_object is animate. */
+ {
+ if (0 == first_round && 0 == map_object->progress)
+ {
+ if (map_object == player)
+ {
+ break;
+ }
+ pretty_dumb_ai(map_object);
+ }
+ first_round = 0;
+ map_object->progress++;
+ struct MapObjAct * moa = world.map_obj_acts;
+ while (moa->id != map_object->command)
+ {
+ moa = moa->next;
+ }
+ if (map_object->progress == moa->effort)
+ {
+ moa->func(map_object);
+ map_object->progress = 0;
+ }
+ }
+ map_object = map_object->next;
+ }
+}
+
+
+
+extern void save_game()
+{
+ char * f_name = "save_game()";
+ char * savefile_tmp = "savefile_tmp";
+ char * savefile = "savefile";
+ FILE * file = try_fopen(savefile_tmp, "w", f_name);
+ char line[12];
+ sprintf(line, "%u\n", world.mapseed);
+ try_fwrite(line, strlen(line), 1, file, f_name);
+ sprintf(line, "%u\n", world.seed);
+ try_fwrite(line, strlen(line), 1, file, f_name);
+ sprintf(line, "%u\n", world.turn);
+ try_fwrite(line, strlen(line), 1, file, f_name);
+ sprintf(line, "%u\n", world.score);
+ try_fwrite(line, strlen(line), 1, file, f_name);
+ write_map_objects(file);
+ try_fclose_unlink_rename(file, savefile_tmp, savefile, f_name);
+}
+
+
+
+extern void load_game()
+{
+ char * f_name = "load_game2()";
+ char * filename = "savefile";
+ FILE * file = try_fopen(filename, "r", f_name);
+ uint16_t linemax = textfile_sizes(file, NULL);
+ char line[linemax + 1];
+ try_fgets(line, linemax + 1, file, f_name);
+ world.mapseed = atoi(line);
+ try_fgets(line, linemax + 1, file, f_name);
+ world.seed = atoi(line);
+ try_fgets(line, linemax + 1, file, f_name);
+ world.turn = atoi(line);
+ try_fgets(line, linemax + 1, file, f_name);
+ world.score = atoi(line);
+ read_map_objects(file, line, linemax);
+ try_fclose(file, f_name);
+}
+
+
+
+extern struct yx_uint16 find_passable_pos(struct Map * map)
+{
+ struct yx_uint16 pos;
+ for (pos.y = pos.x = 0; 0 == is_passable(map, pos);)
+ {
+ pos.y = rrand() % map->size.y;
+ pos.x = rrand() % map->size.x;
+ }
+ return pos;
+}
+
+
+
+extern void nav_inventory(char dir)
+{
+ if ('u' == dir)
+ {
+ if (world.inventory_select > 0)
+ {
+ world.inventory_select--;
+ }
+ return;
+ }
+ struct MapObj * player = get_player();
+ struct MapObj * owned = player->owns;
+ if (NULL == owned)
+ {
+ return;
+ }
+ uint8_t n_owned = 0;
+ for (; NULL != owned->next; owned = owned->next, n_owned++);
+ if (world.inventory_select < n_owned)
+ {
+ world.inventory_select++;
+ }
+}
projects / plomrogue / blobdiff