1 /***********************************************************
2 * Rocks'n'Diamonds -- McDuffin Strikes Back! *
3 *----------------------------------------------------------*
4 * (c) 1995-98 Artsoft Entertainment *
8 * phone: ++49 +521 290471 *
9 * email: aeglos@valinor.owl.de *
10 *----------------------------------------------------------*
12 ***********************************************************/
18 #include <sys/param.h>
19 #include <sys/types.h>
32 volatile unsigned long counter = 0;
34 void increment_counter()
39 END_OF_FUNCTION(increment_counter);
44 /* maximal allowed length of a command line option */
45 #define MAX_OPTION_LEN 256
48 static unsigned long mainCounter(int mode)
50 static struct timeval base_time = { 0, 0 };
51 struct timeval current_time;
52 unsigned long counter_ms;
54 gettimeofday(¤t_time, NULL);
56 if (mode == INIT_COUNTER || current_time.tv_sec < base_time.tv_sec)
57 base_time = current_time;
59 counter_ms = (current_time.tv_sec - base_time.tv_sec) * 1000
60 + (current_time.tv_usec - base_time.tv_usec) / 1000;
62 return counter_ms; /* return milliseconds since last init */
66 void InitCounter() /* set counter back to zero */
69 mainCounter(INIT_COUNTER);
71 LOCK_VARIABLE(counter);
72 LOCK_FUNCTION(increment_counter);
73 install_int_ex(increment_counter, BPS_TO_TIMER(100));
77 unsigned long Counter() /* get milliseconds since last call of InitCounter() */
80 return mainCounter(READ_COUNTER);
82 return (counter * 10);
86 static void sleep_milliseconds(unsigned long milliseconds_delay)
88 boolean do_busy_waiting = (milliseconds_delay < 5 ? TRUE : FALSE);
91 /* donĂ¯t use select() to perform waiting operations under DOS/Windows
92 environment; always use a busy loop for waiting instead */
93 do_busy_waiting = TRUE;
98 /* we want to wait only a few ms -- if we assume that we have a
99 kernel timer resolution of 10 ms, we would wait far to long;
100 therefore it's better to do a short interval of busy waiting
101 to get our sleeping time more accurate */
103 unsigned long base_counter = Counter(), actual_counter = Counter();
105 while (actual_counter < base_counter + milliseconds_delay &&
106 actual_counter >= base_counter)
107 actual_counter = Counter();
111 struct timeval delay;
113 delay.tv_sec = milliseconds_delay / 1000;
114 delay.tv_usec = 1000 * (milliseconds_delay % 1000);
116 if (select(0, NULL, NULL, NULL, &delay) != 0)
117 Error(ERR_WARN, "sleep_milliseconds(): select() failed");
121 void Delay(unsigned long delay) /* Sleep specified number of milliseconds */
123 sleep_milliseconds(delay);
126 boolean FrameReached(unsigned long *frame_counter_var,
127 unsigned long frame_delay)
129 unsigned long actual_frame_counter = FrameCounter;
131 if (actual_frame_counter < *frame_counter_var+frame_delay &&
132 actual_frame_counter >= *frame_counter_var)
135 *frame_counter_var = actual_frame_counter;
139 boolean DelayReached(unsigned long *counter_var,
142 unsigned long actual_counter = Counter();
144 if (actual_counter < *counter_var + delay &&
145 actual_counter >= *counter_var)
148 *counter_var = actual_counter;
152 void WaitUntilDelayReached(unsigned long *counter_var, unsigned long delay)
154 unsigned long actual_counter;
158 actual_counter = Counter();
160 if (actual_counter < *counter_var + delay &&
161 actual_counter >= *counter_var)
162 sleep_milliseconds((*counter_var + delay - actual_counter) / 2);
167 *counter_var = actual_counter;
170 char *int2str(int number, int size)
179 sprintf(s, " %09d", number);
180 return &s[strlen(s) - size];
184 sprintf(s, "%d", number);
189 unsigned int SimpleRND(unsigned int max)
191 static unsigned long root = 654321;
192 struct timeval current_time;
194 gettimeofday(¤t_time,NULL);
195 root = root * 4253261 + current_time.tv_sec + current_time.tv_usec;
200 static unsigned int last_RND_value = 0;
202 unsigned int last_RND()
204 return last_RND_value;
208 unsigned int RND(unsigned int max)
211 return (last_RND_value = random_linux_libc() % max);
213 return (random_linux_libc() % max);
217 unsigned int InitRND(long seed)
219 struct timeval current_time;
221 if (seed == NEW_RANDOMIZE)
223 gettimeofday(¤t_time,NULL);
224 srandom_linux_libc((unsigned int) current_time.tv_usec);
225 return (unsigned int)current_time.tv_usec;
229 srandom_linux_libc((unsigned int) seed);
230 return (unsigned int)seed;
238 if (!(pwd = getpwuid(getuid())))
248 if (!(pwd = getpwuid(getuid())))
251 return pwd->pw_gecos;
257 static char *home_dir = NULL;
261 if (!(home_dir = getenv("HOME")))
265 if ((pwd = getpwuid(getuid())))
266 home_dir = pwd->pw_dir;
278 char *getPath2(char *path1, char *path2)
280 char *complete_path = checked_malloc(strlen(path1) + 1 +
283 sprintf(complete_path, "%s/%s", path1, path2);
284 return complete_path;
287 char *getPath3(char *path1, char *path2, char *path3)
289 char *complete_path = checked_malloc(strlen(path1) + 1 +
293 sprintf(complete_path, "%s/%s/%s", path1, path2, path3);
294 return complete_path;
297 char *getStringCopy(char *s)
299 char *s_copy = checked_malloc(strlen(s) + 1);
305 char *getStringToLower(char *s)
307 char *s_copy = checked_malloc(strlen(s) + 1);
308 char *s_ptr = s_copy;
311 *s_ptr++ = tolower(*s++);
316 void MarkTileDirty(int x, int y)
318 int xx = redraw_x1 + x;
319 int yy = redraw_y1 + y;
324 redraw[xx][yy] = TRUE;
325 redraw_mask |= REDRAW_TILES;
328 void SetBorderElement()
332 BorderElement = EL_LEERRAUM;
334 for(y=0; y<lev_fieldy && BorderElement == EL_LEERRAUM; y++)
336 for(x=0; x<lev_fieldx; x++)
338 if (!IS_MASSIVE(Feld[x][y]))
339 BorderElement = EL_BETON;
341 if (y != 0 && y != lev_fieldy - 1 && x != lev_fieldx - 1)
347 void GetOptions(char *argv[])
349 char **options_left = &argv[1];
351 /* initialize global program options */
352 options.display_name = NULL;
353 options.server_host = NULL;
354 options.server_port = 0;
355 options.base_directory = BASE_PATH;
356 options.level_directory = BASE_PATH "/" LEVELS_DIRECTORY;
357 options.serveronly = FALSE;
358 options.network = FALSE;
359 options.verbose = FALSE;
361 while (*options_left)
363 char option_str[MAX_OPTION_LEN];
364 char *option = options_left[0];
365 char *next_option = options_left[1];
366 char *option_arg = NULL;
367 int option_len = strlen(option);
369 if (option_len >= MAX_OPTION_LEN)
370 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
372 strcpy(option_str, option); /* copy argument into buffer */
375 if (strcmp(option, "--") == 0) /* stop scanning arguments */
378 if (strncmp(option, "--", 2) == 0) /* treat '--' like '-' */
381 option_arg = strchr(option, '=');
382 if (option_arg == NULL) /* no '=' in option */
383 option_arg = next_option;
386 *option_arg++ = '\0'; /* cut argument from option */
387 if (*option_arg == '\0') /* no argument after '=' */
388 Error(ERR_EXIT_HELP, "option '%s' has invalid argument", option_str);
391 option_len = strlen(option);
393 if (strcmp(option, "-") == 0)
394 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
395 else if (strncmp(option, "-help", option_len) == 0)
397 printf("Usage: %s [options] [server.name [port]]\n"
399 " -d, --display machine:0 X server display\n"
400 " -b, --basepath directory alternative base directory\n"
401 " -l, --levels directory alternative level directory\n"
402 " -s, --serveronly only start network server\n"
403 " -n, --network network multiplayer game\n"
404 " -v, --verbose verbose mode\n",
408 else if (strncmp(option, "-display", option_len) == 0)
410 if (option_arg == NULL)
411 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
413 options.display_name = option_arg;
414 if (option_arg == next_option)
417 else if (strncmp(option, "-basepath", option_len) == 0)
419 if (option_arg == NULL)
420 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
422 options.base_directory = option_arg;
423 if (option_arg == next_option)
426 /* adjust path for level directory accordingly */
427 options.level_directory =
428 getPath2(options.base_directory, LEVELS_DIRECTORY);
430 else if (strncmp(option, "-levels", option_len) == 0)
432 if (option_arg == NULL)
433 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
435 options.level_directory = option_arg;
436 if (option_arg == next_option)
439 else if (strncmp(option, "-network", option_len) == 0)
441 options.network = TRUE;
443 else if (strncmp(option, "-serveronly", option_len) == 0)
445 options.serveronly = TRUE;
447 else if (strncmp(option, "-verbose", option_len) == 0)
449 options.verbose = TRUE;
451 else if (*option == '-')
453 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option_str);
455 else if (options.server_host == NULL)
457 options.server_host = *options_left;
459 else if (options.server_port == 0)
461 options.server_port = atoi(*options_left);
462 if (options.server_port < 1024)
463 Error(ERR_EXIT_HELP, "bad port number '%d'", options.server_port);
466 Error(ERR_EXIT_HELP, "too many arguments");
472 void Error(int mode, char *format, ...)
474 char *process_name = "";
475 FILE *error = stderr;
477 /* display warnings only when running in verbose mode */
478 if (mode & ERR_WARN && !options.verbose)
482 if ((error = openErrorFile()) == NULL)
484 printf("Cannot write to error output file!\n");
489 if (mode & ERR_SOUND_SERVER)
490 process_name = " sound server";
491 else if (mode & ERR_NETWORK_SERVER)
492 process_name = " network server";
493 else if (mode & ERR_NETWORK_CLIENT)
494 process_name = " network client **";
500 fprintf(error, "%s%s: ", program_name, process_name);
503 fprintf(error, "warning: ");
505 va_start(ap, format);
506 vfprintf(error, format, ap);
509 fprintf(error, "\n");
513 fprintf(error, "%s: Try option '--help' for more information.\n",
517 fprintf(error, "%s%s: aborting\n", program_name, process_name);
524 if (mode & ERR_FROM_SERVER)
525 exit(1); /* child process: normal exit */
527 CloseAllAndExit(1); /* main process: clean up stuff */
531 void *checked_malloc(unsigned long size)
538 Error(ERR_EXIT, "cannot allocate %d bytes -- out of memory", size);
543 void *checked_calloc(unsigned long size)
547 ptr = calloc(1, size);
550 Error(ERR_EXIT, "cannot allocate %d bytes -- out of memory", size);
555 #define TRANSLATE_KEYSYM_TO_KEYNAME 0
556 #define TRANSLATE_KEYSYM_TO_X11KEYNAME 1
557 #define TRANSLATE_X11KEYNAME_TO_KEYSYM 2
559 void translate_keyname(KeySym *keysym, char **x11name, char **name, int mode)
568 /* normal cursor keys */
569 { XK_Left, "XK_Left", "cursor left" },
570 { XK_Right, "XK_Right", "cursor right" },
571 { XK_Up, "XK_Up", "cursor up" },
572 { XK_Down, "XK_Down", "cursor down" },
574 /* keypad cursor keys */
576 { XK_KP_Left, "XK_KP_Left", "keypad left" },
577 { XK_KP_Right, "XK_KP_Right", "keypad right" },
578 { XK_KP_Up, "XK_KP_Up", "keypad up" },
579 { XK_KP_Down, "XK_KP_Down", "keypad down" },
582 /* other keypad keys */
584 { XK_KP_Enter, "XK_KP_Enter", "keypad enter" },
585 { XK_KP_Add, "XK_KP_Add", "keypad +" },
586 { XK_KP_Subtract, "XK_KP_Subtract", "keypad -" },
587 { XK_KP_Multiply, "XK_KP_Multiply", "keypad mltply" },
588 { XK_KP_Divide, "XK_KP_Divide", "keypad /" },
589 { XK_KP_Separator, "XK_KP_Separator", "keypad ," },
593 { XK_Shift_L, "XK_Shift_L", "left shift" },
594 { XK_Shift_R, "XK_Shift_R", "right shift" },
595 { XK_Control_L, "XK_Control_L", "left control" },
596 { XK_Control_R, "XK_Control_R", "right control" },
597 { XK_Meta_L, "XK_Meta_L", "left meta" },
598 { XK_Meta_R, "XK_Meta_R", "right meta" },
599 { XK_Alt_L, "XK_Alt_L", "left alt" },
600 { XK_Alt_R, "XK_Alt_R", "right alt" },
601 { XK_Mode_switch, "XK_Mode_switch", "mode switch" },
602 { XK_Multi_key, "XK_Multi_key", "multi key" },
604 /* some special keys */
605 { XK_BackSpace, "XK_BackSpace", "backspace" },
606 { XK_Delete, "XK_Delete", "delete" },
607 { XK_Insert, "XK_Insert", "insert" },
608 { XK_Tab, "XK_Tab", "tab" },
609 { XK_Home, "XK_Home", "home" },
610 { XK_End, "XK_End", "end" },
611 { XK_Page_Up, "XK_Page_Up", "page up" },
612 { XK_Page_Down, "XK_Page_Down", "page down" },
615 /* ASCII 0x20 to 0x40 keys (except numbers) */
616 { XK_space, "XK_space", "space" },
617 { XK_exclam, "XK_exclam", "!" },
618 { XK_quotedbl, "XK_quotedbl", "\"" },
619 { XK_numbersign, "XK_numbersign", "#" },
620 { XK_dollar, "XK_dollar", "$" },
621 { XK_percent, "XK_percent", "%" },
622 { XK_ampersand, "XK_ampersand", "&" },
623 { XK_apostrophe, "XK_apostrophe", "'" },
624 { XK_parenleft, "XK_parenleft", "(" },
625 { XK_parenright, "XK_parenright", ")" },
626 { XK_asterisk, "XK_asterisk", "*" },
627 { XK_plus, "XK_plus", "+" },
628 { XK_comma, "XK_comma", "," },
629 { XK_minus, "XK_minus", "-" },
630 { XK_period, "XK_period", "." },
631 { XK_slash, "XK_slash", "/" },
632 { XK_colon, "XK_colon", ":" },
633 { XK_semicolon, "XK_semicolon", ";" },
634 { XK_less, "XK_less", "<" },
635 { XK_equal, "XK_equal", "=" },
636 { XK_greater, "XK_greater", ">" },
637 { XK_question, "XK_question", "?" },
638 { XK_at, "XK_at", "@" },
640 /* more ASCII keys */
641 { XK_bracketleft, "XK_bracketleft", "[" },
642 { XK_backslash, "XK_backslash", "backslash" },
643 { XK_bracketright, "XK_bracketright", "]" },
644 { XK_asciicircum, "XK_asciicircum", "circumflex" },
645 { XK_underscore, "XK_underscore", "_" },
646 { XK_grave, "XK_grave", "grave" },
647 { XK_quoteleft, "XK_quoteleft", "quote left" },
648 { XK_braceleft, "XK_braceleft", "brace left" },
649 { XK_bar, "XK_bar", "bar" },
650 { XK_braceright, "XK_braceright", "brace right" },
651 { XK_asciitilde, "XK_asciitilde", "ascii tilde" },
653 /* special (non-ASCII) keys */
654 { XK_Adiaeresis, "XK_Adiaeresis", "Ă„" },
655 { XK_Odiaeresis, "XK_Odiaeresis", "Ă–" },
656 { XK_Udiaeresis, "XK_Udiaeresis", "Ăœ" },
657 { XK_adiaeresis, "XK_adiaeresis", "ä" },
658 { XK_odiaeresis, "XK_odiaeresis", "ö" },
659 { XK_udiaeresis, "XK_udiaeresis", "Ă¼" },
660 { XK_ssharp, "XK_ssharp", "sharp s" },
662 /* end-of-array identifier */
668 if (mode == TRANSLATE_KEYSYM_TO_KEYNAME)
670 static char name_buffer[30];
671 KeySym key = *keysym;
673 if (key >= XK_A && key <= XK_Z)
674 sprintf(name_buffer, "%c", 'A' + (char)(key - XK_A));
675 else if (key >= XK_a && key <= XK_z)
676 sprintf(name_buffer, "%c", 'a' + (char)(key - XK_a));
677 else if (key >= XK_0 && key <= XK_9)
678 sprintf(name_buffer, "%c", '0' + (char)(key - XK_0));
679 else if (key >= XK_KP_0 && key <= XK_KP_9)
680 sprintf(name_buffer, "keypad %c", '0' + (char)(key - XK_KP_0));
681 else if (key >= XK_F1 && key <= XK_F24)
682 sprintf(name_buffer, "function F%d", (int)(key - XK_F1 + 1));
683 else if (key == KEY_UNDEFINDED)
684 strcpy(name_buffer, "(undefined)");
691 if (key == translate_key[i].keysym)
693 strcpy(name_buffer, translate_key[i].name);
697 while (translate_key[++i].name);
699 if (!translate_key[i].name)
700 strcpy(name_buffer, "(unknown)");
705 else if (mode == TRANSLATE_KEYSYM_TO_X11KEYNAME)
707 static char name_buffer[30];
708 KeySym key = *keysym;
710 if (key >= XK_A && key <= XK_Z)
711 sprintf(name_buffer, "XK_%c", 'A' + (char)(key - XK_A));
712 else if (key >= XK_a && key <= XK_z)
713 sprintf(name_buffer, "XK_%c", 'a' + (char)(key - XK_a));
714 else if (key >= XK_0 && key <= XK_9)
715 sprintf(name_buffer, "XK_%c", '0' + (char)(key - XK_0));
716 else if (key >= XK_KP_0 && key <= XK_KP_9)
717 sprintf(name_buffer, "XK_KP_%c", '0' + (char)(key - XK_KP_0));
718 else if (key >= XK_F1 && key <= XK_F24)
719 sprintf(name_buffer, "XK_F%d", (int)(key - XK_F1 + 1));
720 else if (key == KEY_UNDEFINDED)
721 strcpy(name_buffer, "[undefined]");
728 if (key == translate_key[i].keysym)
730 strcpy(name_buffer, translate_key[i].x11name);
734 while (translate_key[++i].x11name);
736 if (!translate_key[i].x11name)
737 sprintf(name_buffer, "0x%04lx", (unsigned long)key);
740 *x11name = name_buffer;
742 else if (mode == TRANSLATE_X11KEYNAME_TO_KEYSYM)
744 KeySym key = XK_VoidSymbol;
745 char *name_ptr = *x11name;
747 if (strncmp(name_ptr, "XK_", 3) == 0 && strlen(name_ptr) == 4)
749 char c = name_ptr[3];
751 if (c >= 'A' && c <= 'Z')
752 key = XK_A + (KeySym)(c - 'A');
753 else if (c >= 'a' && c <= 'z')
754 key = XK_a + (KeySym)(c - 'a');
755 else if (c >= '0' && c <= '9')
756 key = XK_0 + (KeySym)(c - '0');
758 else if (strncmp(name_ptr, "XK_KP_", 6) == 0 && strlen(name_ptr) == 7)
760 char c = name_ptr[6];
762 if (c >= '0' && c <= '9')
763 key = XK_0 + (KeySym)(c - '0');
765 else if (strncmp(name_ptr, "XK_F", 4) == 0 && strlen(name_ptr) <= 6)
767 char c1 = name_ptr[4];
768 char c2 = name_ptr[5];
771 if ((c1 >= '0' && c1 <= '9') &&
772 ((c2 >= '0' && c1 <= '9') || c2 == '\0'))
773 d = atoi(&name_ptr[4]);
775 if (d >=1 && d <= 24)
776 key = XK_F1 + (KeySym)(d - 1);
778 else if (strncmp(name_ptr, "XK_", 3) == 0)
784 if (strcmp(name_ptr, translate_key[i].x11name) == 0)
786 key = translate_key[i].keysym;
790 while (translate_key[++i].x11name);
792 else if (strncmp(name_ptr, "0x", 2) == 0)
794 unsigned long value = 0;
800 char c = *name_ptr++;
803 if (c >= '0' && c <= '9')
805 else if (c >= 'a' && c <= 'f')
806 d = (int)(c - 'a' + 10);
807 else if (c >= 'A' && c <= 'F')
808 d = (int)(c - 'A' + 10);
816 value = value * 16 + d;
827 char *getKeyNameFromKeySym(KeySym keysym)
831 translate_keyname(&keysym, NULL, &name, TRANSLATE_KEYSYM_TO_KEYNAME);
835 char *getX11KeyNameFromKeySym(KeySym keysym)
839 translate_keyname(&keysym, &x11name, NULL, TRANSLATE_KEYSYM_TO_X11KEYNAME);
843 KeySym getKeySymFromX11KeyName(char *x11name)
847 translate_keyname(&keysym, &x11name, NULL, TRANSLATE_X11KEYNAME_TO_KEYSYM);
851 char getCharFromKeySym(KeySym keysym)
853 char *keyname = getKeyNameFromKeySym(keysym);
856 if (strlen(keyname) == 1)
858 else if (strcmp(keyname, "space") == 0)
860 else if (strcmp(keyname, "circumflex") == 0)
866 #define TRANSLATE_JOYSYMBOL_TO_JOYNAME 0
867 #define TRANSLATE_JOYNAME_TO_JOYSYMBOL 1
869 void translate_joyname(int *joysymbol, char **name, int mode)
877 { JOY_LEFT, "joystick_left" },
878 { JOY_RIGHT, "joystick_right" },
879 { JOY_UP, "joystick_up" },
880 { JOY_DOWN, "joystick_down" },
881 { JOY_BUTTON_1, "joystick_button_1" },
882 { JOY_BUTTON_2, "joystick_button_2" },
887 if (mode == TRANSLATE_JOYSYMBOL_TO_JOYNAME)
889 *name = "[undefined]";
893 if (*joysymbol == translate_joy[i].joysymbol)
895 *name = translate_joy[i].name;
900 else if (mode == TRANSLATE_JOYNAME_TO_JOYSYMBOL)
906 if (strcmp(*name, translate_joy[i].name) == 0)
908 *joysymbol = translate_joy[i].joysymbol;
915 char *getJoyNameFromJoySymbol(int joysymbol)
919 translate_joyname(&joysymbol, &name, TRANSLATE_JOYSYMBOL_TO_JOYNAME);
923 int getJoySymbolFromJoyName(char *name)
927 translate_joyname(&joysymbol, &name, TRANSLATE_JOYNAME_TO_JOYSYMBOL);
931 int getJoystickNrFromDeviceName(char *device_name)
936 if (device_name == NULL || device_name[0] == '\0')
939 c = device_name[strlen(device_name) - 1];
941 if (c >= '0' && c <= '9')
942 joystick_nr = (int)(c - '0');
944 if (joystick_nr < 0 || joystick_nr >= MAX_PLAYERS)
950 /* ----------------------------------------------------------------- */
951 /* the following is only for debugging purpose and normally not used */
952 /* ----------------------------------------------------------------- */
954 #define DEBUG_NUM_TIMESTAMPS 3
956 void debug_print_timestamp(int counter_nr, char *message)
958 static long counter[DEBUG_NUM_TIMESTAMPS][2];
960 if (counter_nr >= DEBUG_NUM_TIMESTAMPS)
961 Error(ERR_EXIT, "debugging: increase DEBUG_NUM_TIMESTAMPS in misc.c");
963 counter[counter_nr][0] = Counter();
966 printf("%s %.2f seconds\n", message,
967 (float)(counter[counter_nr][0] - counter[counter_nr][1]) / 1000);
969 counter[counter_nr][1] = Counter();