/* misc.c */
#include "misc.h"
-#include <stdlib.h> /* for exit(), EXIT_SUCCESS define, calloc(), free() */
+#include <stdio.h> /* for rename() */
+#include <unistd.h> /* for unlink(), acess() */
+#include <stdlib.h> /* for calloc(), free() */
#include <string.h> /* for strlen(), strcmp(), memcpy() */
-#include <ncurses.h> /* for endwin() */
+#include <stdint.h> /* for uint8_t */
#include "windows.h" /* for suspend_win(), append_win(), reset_pad_offset(),
* resize_active_win(), cycle_active_win(),
* shift_active_win(), struct Win, struct WinMeta
#include "keybindings.h" /* for get_action_key(), save_keybindings(),
* keyswin_move_selection(), keyswin_mod_key()
*/
-#include "readwrite.h" /* for write_uint16_bigendian(), write_uint32_bigendian()
- */
-#include "map_objects.h" /* for struct Monster, write_map_objects(),
- * write_map_objects_monsterdata()
- */
+#include "readwrite.h" /* for [read/write]_uint[8/16/32][_bigendian]() */
+#include "map_objects.h" /* for struct Monster, write_map_objects(), */
#include "map_object_actions.h" /* for is_passable(), move_monster() */
#include "map.h" /* for map_scroll(),map_center_player(), Map struct,dir enum */
#include "main.h" /* for World struct */
#include "yx_uint16.h" /* for yx_uint16 */
-
-
-
-extern void exit_game(struct World * world, struct Map * map)
-{
- endwin();
- free(map->cells);
- uint16_t key;
- for (key = 0; key <= world->keyswindata->max; key++)
- {
- free(world->keybindings[key].name);
- }
- free(world->keybindings);
- free(world->keyswindata);
- free(world->log);
- exit (EXIT_SUCCESS);
-}
-
+#include "rrand.h" /* for rrand(), rrand_seed() */
+#include "rexit.h" /* for exit_err() */
extern void textfile_sizes(FILE * file, uint16_t * linemax_p,
-extern uint16_t rrand(char use_seed, uint32_t new_seed)
-{
- static uint32_t seed;
- if (0 != use_seed)
- {
- seed = new_seed;
- }
-
- /* Constants as recommended by POSIX.1-2001 (see man page rand(3)). */
- seed = ((seed * 1103515245) + 12345) % 2147483648;
-
- return (seed >> 16); /* Ignore less random least significant 16 bits. */
-}
-
-
extern void update_log(struct World * world, char * text)
{
static char * last_msg;
extern void turn_over(struct World * world, char action)
{
+ char * err_open = "Error recording move: "
+ "Unable to open file 'record_tmp' for appending.";
+ char * err_write = "Error recording move: "
+ "Trouble writing to opened file 'record_tmp'.";
+ char * err_close = "Error recording move: "
+ "Unable to close opened file 'record_tmp'.";
+ char * err_unl = "Error recording move: "
+ "Unable to unlink old file 'record'.";
+ char * err_move = "Error recording move: "
+ "Unable to rename file 'record_tmp' to 'record'.";
+ char * recordfile_tmp = "record_tmp";
+ char * recordfile = "record";
if (1 == world->interactive)
{
- FILE * file = fopen("record", "a");
- fputc(action, file);
- fclose(file);
+ FILE * file = fopen(recordfile_tmp, "a");
+ exit_err(0 == file, world, err_open);
+ exit_err(write_uint8(action, file), world, err_write);
+ exit_err(fclose(file), world, err_close);
+ exit_err(unlink(recordfile), world, err_unl);
+ exit_err(rename(recordfile_tmp, recordfile), world, err_move);
}
+
world->turn++;
- rrand(1, world->seed * world->turn);
+ rrand_seed(world->seed * world->turn);
struct Monster * monster;
for (monster = world->monster;
monster != 0;
extern void save_game(struct World * world)
{
- 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, NULL);
- fclose(file);
+ char * err_open = "Error saving game: "
+ "Unable to open file 'savefile_tmp' for writing.";
+ char * err_write = "Error saving game: "
+ "Trouble writing to opened file 'savefile_tmp'.";
+ char * err_close = "Error saving game: "
+ "Unable to close opened file 'savefile_tmp'.";
+ char * err_unl = "Error saving game: "
+ "Unable to unlink old 'savefile' file.";
+ char * err_move = "Error saving game: "
+ "Unable to rename 'file savefile_tmp' to 'savefile'.";
+ char * savefile_tmp = "savefile_tmp";
+ char * savefile = "savefile";
+ FILE * file = fopen(savefile_tmp, "w");
+ exit_err(0 == file, world, err_open);
+ if ( 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)
+ || write_uint8(world->player->hitpoints, file)
+ || write_map_objects(world, world->monster, file)
+ || write_map_objects(world, world->item, file))
+ {
+ exit_err(1, world, err_write);
+ }
+ exit_err(fclose(file), world, err_close);
+ if (!access(savefile, F_OK))
+ {
+ exit_err(unlink(savefile), world, err_unl);
+ }
+ exit_err(rename(savefile_tmp, savefile), world, err_move);
}
struct yx_uint16 pos;
for (pos.y = pos.x = 0; 0 == is_passable(map, pos);)
{
- pos.y = rrand(0, 0) % map->size.y;
- pos.x = rrand(0, 0) % map->size.x;
+ pos.y = rrand() % map->size.y;
+ pos.x = rrand() % map->size.x;
}
return pos;
}
-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)
+extern uint8_t 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)
{
if (key == get_action_key(world->keybindings, "quit"))
{
projects / plomrogue / blobdiff