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())))
247 static char *home_dir = NULL;
251 if (!(home_dir = getenv("HOME")))
255 if ((pwd = getpwuid(getuid())))
256 home_dir = pwd->pw_dir;
268 char *getPath2(char *path1, char *path2)
270 char *complete_path = checked_malloc(strlen(path1) + 1 +
273 sprintf(complete_path, "%s/%s", path1, path2);
274 return complete_path;
277 char *getPath3(char *path1, char *path2, char *path3)
279 char *complete_path = checked_malloc(strlen(path1) + 1 +
283 sprintf(complete_path, "%s/%s/%s", path1, path2, path3);
284 return complete_path;
287 char *getStringCopy(char *s)
289 char *s_copy = checked_malloc(strlen(s) + 1);
295 char *getStringToLower(char *s)
297 char *s_copy = checked_malloc(strlen(s) + 1);
298 char *s_ptr = s_copy;
301 *s_ptr++ = tolower(*s++);
306 void MarkTileDirty(int x, int y)
308 int xx = redraw_x1 + x;
309 int yy = redraw_y1 + y;
314 redraw[xx][yy] = TRUE;
315 redraw_mask |= REDRAW_TILES;
318 void SetBorderElement()
322 BorderElement = EL_LEERRAUM;
324 for(y=0; y<lev_fieldy && BorderElement == EL_LEERRAUM; y++)
326 for(x=0; x<lev_fieldx; x++)
328 if (!IS_MASSIVE(Feld[x][y]))
329 BorderElement = EL_BETON;
331 if (y != 0 && y != lev_fieldy - 1 && x != lev_fieldx - 1)
337 void GetOptions(char *argv[])
339 char **options_left = &argv[1];
341 /* initialize global program options */
342 options.display_name = NULL;
343 options.server_host = NULL;
344 options.server_port = 0;
345 options.base_directory = BASE_PATH;
346 options.level_directory = BASE_PATH "/" LEVELS_DIRECTORY;
347 options.serveronly = FALSE;
348 options.network = FALSE;
349 options.verbose = FALSE;
351 while (*options_left)
353 char option_str[MAX_OPTION_LEN];
354 char *option = options_left[0];
355 char *next_option = options_left[1];
356 char *option_arg = NULL;
357 int option_len = strlen(option);
359 if (option_len >= MAX_OPTION_LEN)
360 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
362 strcpy(option_str, option); /* copy argument into buffer */
365 if (strcmp(option, "--") == 0) /* stop scanning arguments */
368 if (strncmp(option, "--", 2) == 0) /* treat '--' like '-' */
371 option_arg = strchr(option, '=');
372 if (option_arg == NULL) /* no '=' in option */
373 option_arg = next_option;
376 *option_arg++ = '\0'; /* cut argument from option */
377 if (*option_arg == '\0') /* no argument after '=' */
378 Error(ERR_EXIT_HELP, "option '%s' has invalid argument", option_str);
381 option_len = strlen(option);
383 if (strcmp(option, "-") == 0)
384 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
385 else if (strncmp(option, "-help", option_len) == 0)
387 printf("Usage: %s [options] [server.name [port]]\n"
389 " -d, --display machine:0 X server display\n"
390 " -b, --basepath directory alternative base directory\n"
391 " -l, --levels directory alternative level directory\n"
392 " -s, --serveronly only start network server\n"
393 " -n, --network network multiplayer game\n"
394 " -v, --verbose verbose mode\n",
398 else if (strncmp(option, "-display", option_len) == 0)
400 if (option_arg == NULL)
401 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
403 options.display_name = option_arg;
404 if (option_arg == next_option)
407 else if (strncmp(option, "-basepath", option_len) == 0)
409 if (option_arg == NULL)
410 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
412 options.base_directory = option_arg;
413 if (option_arg == next_option)
416 /* adjust path for level directory accordingly */
417 options.level_directory =
418 getPath2(options.base_directory, LEVELS_DIRECTORY);
420 else if (strncmp(option, "-levels", option_len) == 0)
422 if (option_arg == NULL)
423 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
425 options.level_directory = option_arg;
426 if (option_arg == next_option)
429 else if (strncmp(option, "-network", option_len) == 0)
431 options.network = TRUE;
433 else if (strncmp(option, "-serveronly", option_len) == 0)
435 options.serveronly = TRUE;
437 else if (strncmp(option, "-verbose", option_len) == 0)
439 options.verbose = TRUE;
441 else if (*option == '-')
443 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option_str);
445 else if (options.server_host == NULL)
447 options.server_host = *options_left;
449 else if (options.server_port == 0)
451 options.server_port = atoi(*options_left);
452 if (options.server_port < 1024)
453 Error(ERR_EXIT_HELP, "bad port number '%d'", options.server_port);
456 Error(ERR_EXIT_HELP, "too many arguments");
462 void Error(int mode, char *format, ...)
464 char *process_name = "";
465 FILE *error = stderr;
467 /* display warnings only when running in verbose mode */
468 if (mode & ERR_WARN && !options.verbose)
472 if ((error = openErrorFile()) == NULL)
474 printf("Cannot write to error output file!\n");
479 if (mode & ERR_SOUND_SERVER)
480 process_name = " sound server";
481 else if (mode & ERR_NETWORK_SERVER)
482 process_name = " network server";
483 else if (mode & ERR_NETWORK_CLIENT)
484 process_name = " network client **";
490 fprintf(error, "%s%s: ", program_name, process_name);
493 fprintf(error, "warning: ");
495 va_start(ap, format);
496 vfprintf(error, format, ap);
499 fprintf(error, "\n");
503 fprintf(error, "%s: Try option '--help' for more information.\n",
507 fprintf(error, "%s%s: aborting\n", program_name, process_name);
514 if (mode & ERR_FROM_SERVER)
515 exit(1); /* child process: normal exit */
517 CloseAllAndExit(1); /* main process: clean up stuff */
521 void *checked_malloc(unsigned long size)
528 Error(ERR_EXIT, "cannot allocate %d bytes -- out of memory", size);
533 void *checked_calloc(unsigned long size)
537 ptr = calloc(1, size);
540 Error(ERR_EXIT, "cannot allocate %d bytes -- out of memory", size);
545 #define TRANSLATE_KEYSYM_TO_KEYNAME 0
546 #define TRANSLATE_KEYSYM_TO_X11KEYNAME 1
547 #define TRANSLATE_X11KEYNAME_TO_KEYSYM 2
549 void translate_keyname(KeySym *keysym, char **x11name, char **name, int mode)
558 /* normal cursor keys */
559 { XK_Left, "XK_Left", "cursor left" },
560 { XK_Right, "XK_Right", "cursor right" },
561 { XK_Up, "XK_Up", "cursor up" },
562 { XK_Down, "XK_Down", "cursor down" },
564 /* keypad cursor keys */
566 { XK_KP_Left, "XK_KP_Left", "keypad left" },
567 { XK_KP_Right, "XK_KP_Right", "keypad right" },
568 { XK_KP_Up, "XK_KP_Up", "keypad up" },
569 { XK_KP_Down, "XK_KP_Down", "keypad down" },
572 /* other keypad keys */
574 { XK_KP_Enter, "XK_KP_Enter", "keypad enter" },
575 { XK_KP_Add, "XK_KP_Add", "keypad +" },
576 { XK_KP_Subtract, "XK_KP_Subtract", "keypad -" },
577 { XK_KP_Multiply, "XK_KP_Multiply", "keypad mltply" },
578 { XK_KP_Divide, "XK_KP_Divide", "keypad /" },
579 { XK_KP_Separator, "XK_KP_Separator", "keypad ," },
583 { XK_Shift_L, "XK_Shift_L", "left shift" },
584 { XK_Shift_R, "XK_Shift_R", "right shift" },
585 { XK_Control_L, "XK_Control_L", "left control" },
586 { XK_Control_R, "XK_Control_R", "right control" },
587 { XK_Meta_L, "XK_Meta_L", "left meta" },
588 { XK_Meta_R, "XK_Meta_R", "right meta" },
589 { XK_Alt_L, "XK_Alt_L", "left alt" },
590 { XK_Alt_R, "XK_Alt_R", "right alt" },
591 { XK_Mode_switch, "XK_Mode_switch", "mode switch" },
592 { XK_Multi_key, "XK_Multi_key", "multi key" },
594 /* some special keys */
595 { XK_BackSpace, "XK_BackSpace", "backspace" },
596 { XK_Delete, "XK_Delete", "delete" },
597 { XK_Insert, "XK_Insert", "insert" },
598 { XK_Tab, "XK_Tab", "tab" },
599 { XK_Home, "XK_Home", "home" },
600 { XK_End, "XK_End", "end" },
601 { XK_Page_Up, "XK_Page_Up", "page up" },
602 { XK_Page_Down, "XK_Page_Down", "page down" },
605 /* ASCII 0x20 to 0x40 keys (except numbers) */
606 { XK_space, "XK_space", "space" },
607 { XK_exclam, "XK_exclam", "!" },
608 { XK_quotedbl, "XK_quotedbl", "\"" },
609 { XK_numbersign, "XK_numbersign", "#" },
610 { XK_dollar, "XK_dollar", "$" },
611 { XK_percent, "XK_percent", "%" },
612 { XK_ampersand, "XK_ampersand", "&" },
613 { XK_apostrophe, "XK_apostrophe", "'" },
614 { XK_parenleft, "XK_parenleft", "(" },
615 { XK_parenright, "XK_parenright", ")" },
616 { XK_asterisk, "XK_asterisk", "*" },
617 { XK_plus, "XK_plus", "+" },
618 { XK_comma, "XK_comma", "," },
619 { XK_minus, "XK_minus", "-" },
620 { XK_period, "XK_period", "." },
621 { XK_slash, "XK_slash", "/" },
622 { XK_colon, "XK_colon", ":" },
623 { XK_semicolon, "XK_semicolon", ";" },
624 { XK_less, "XK_less", "<" },
625 { XK_equal, "XK_equal", "=" },
626 { XK_greater, "XK_greater", ">" },
627 { XK_question, "XK_question", "?" },
628 { XK_at, "XK_at", "@" },
630 /* more ASCII keys */
631 { XK_bracketleft, "XK_bracketleft", "[" },
632 { XK_backslash, "XK_backslash", "backslash" },
633 { XK_bracketright, "XK_bracketright", "]" },
634 { XK_asciicircum, "XK_asciicircum", "circumflex" },
635 { XK_underscore, "XK_underscore", "_" },
636 { XK_grave, "XK_grave", "grave" },
637 { XK_quoteleft, "XK_quoteleft", "quote left" },
638 { XK_braceleft, "XK_braceleft", "brace left" },
639 { XK_bar, "XK_bar", "bar" },
640 { XK_braceright, "XK_braceright", "brace right" },
641 { XK_asciitilde, "XK_asciitilde", "ascii tilde" },
643 /* special (non-ASCII) keys */
644 { XK_Adiaeresis, "XK_Adiaeresis", "Ă„" },
645 { XK_Odiaeresis, "XK_Odiaeresis", "Ă–" },
646 { XK_Udiaeresis, "XK_Udiaeresis", "Ăœ" },
647 { XK_adiaeresis, "XK_adiaeresis", "ä" },
648 { XK_odiaeresis, "XK_odiaeresis", "ö" },
649 { XK_udiaeresis, "XK_udiaeresis", "Ă¼" },
650 { XK_ssharp, "XK_ssharp", "sharp s" },
652 /* end-of-array identifier */
658 if (mode == TRANSLATE_KEYSYM_TO_KEYNAME)
660 static char name_buffer[30];
661 KeySym key = *keysym;
663 if (key >= XK_A && key <= XK_Z)
664 sprintf(name_buffer, "%c", 'A' + (char)(key - XK_A));
665 else if (key >= XK_a && key <= XK_z)
666 sprintf(name_buffer, "%c", 'a' + (char)(key - XK_a));
667 else if (key >= XK_0 && key <= XK_9)
668 sprintf(name_buffer, "%c", '0' + (char)(key - XK_0));
669 else if (key >= XK_KP_0 && key <= XK_KP_9)
670 sprintf(name_buffer, "keypad %c", '0' + (char)(key - XK_KP_0));
671 else if (key >= XK_F1 && key <= XK_F24)
672 sprintf(name_buffer, "function F%d", (int)(key - XK_F1 + 1));
673 else if (key == KEY_UNDEFINDED)
674 strcpy(name_buffer, "(undefined)");
681 if (key == translate_key[i].keysym)
683 strcpy(name_buffer, translate_key[i].name);
687 while (translate_key[++i].name);
689 if (!translate_key[i].name)
690 strcpy(name_buffer, "(unknown)");
695 else if (mode == TRANSLATE_KEYSYM_TO_X11KEYNAME)
697 static char name_buffer[30];
698 KeySym key = *keysym;
700 if (key >= XK_A && key <= XK_Z)
701 sprintf(name_buffer, "XK_%c", 'A' + (char)(key - XK_A));
702 else if (key >= XK_a && key <= XK_z)
703 sprintf(name_buffer, "XK_%c", 'a' + (char)(key - XK_a));
704 else if (key >= XK_0 && key <= XK_9)
705 sprintf(name_buffer, "XK_%c", '0' + (char)(key - XK_0));
706 else if (key >= XK_KP_0 && key <= XK_KP_9)
707 sprintf(name_buffer, "XK_KP_%c", '0' + (char)(key - XK_KP_0));
708 else if (key >= XK_F1 && key <= XK_F24)
709 sprintf(name_buffer, "XK_F%d", (int)(key - XK_F1 + 1));
710 else if (key == KEY_UNDEFINDED)
711 strcpy(name_buffer, "[undefined]");
718 if (key == translate_key[i].keysym)
720 strcpy(name_buffer, translate_key[i].x11name);
724 while (translate_key[++i].x11name);
726 if (!translate_key[i].x11name)
727 sprintf(name_buffer, "0x%04lx", (unsigned long)key);
730 *x11name = name_buffer;
732 else if (mode == TRANSLATE_X11KEYNAME_TO_KEYSYM)
734 KeySym key = XK_VoidSymbol;
735 char *name_ptr = *x11name;
737 if (strncmp(name_ptr, "XK_", 3) == 0 && strlen(name_ptr) == 4)
739 char c = name_ptr[3];
741 if (c >= 'A' && c <= 'Z')
742 key = XK_A + (KeySym)(c - 'A');
743 else if (c >= 'a' && c <= 'z')
744 key = XK_a + (KeySym)(c - 'a');
745 else if (c >= '0' && c <= '9')
746 key = XK_0 + (KeySym)(c - '0');
748 else if (strncmp(name_ptr, "XK_KP_", 6) == 0 && strlen(name_ptr) == 7)
750 char c = name_ptr[6];
752 if (c >= '0' && c <= '9')
753 key = XK_0 + (KeySym)(c - '0');
755 else if (strncmp(name_ptr, "XK_F", 4) == 0 && strlen(name_ptr) <= 6)
757 char c1 = name_ptr[4];
758 char c2 = name_ptr[5];
761 if ((c1 >= '0' && c1 <= '9') &&
762 ((c2 >= '0' && c1 <= '9') || c2 == '\0'))
763 d = atoi(&name_ptr[4]);
765 if (d >=1 && d <= 24)
766 key = XK_F1 + (KeySym)(d - 1);
768 else if (strncmp(name_ptr, "XK_", 3) == 0)
774 if (strcmp(name_ptr, translate_key[i].x11name) == 0)
776 key = translate_key[i].keysym;
780 while (translate_key[++i].x11name);
782 else if (strncmp(name_ptr, "0x", 2) == 0)
784 unsigned long value = 0;
790 char c = *name_ptr++;
793 if (c >= '0' && c <= '9')
795 else if (c >= 'a' && c <= 'f')
796 d = (int)(c - 'a' + 10);
797 else if (c >= 'A' && c <= 'F')
798 d = (int)(c - 'A' + 10);
806 value = value * 16 + d;
817 char *getKeyNameFromKeySym(KeySym keysym)
821 translate_keyname(&keysym, NULL, &name, TRANSLATE_KEYSYM_TO_KEYNAME);
825 char *getX11KeyNameFromKeySym(KeySym keysym)
829 translate_keyname(&keysym, &x11name, NULL, TRANSLATE_KEYSYM_TO_X11KEYNAME);
833 KeySym getKeySymFromX11KeyName(char *x11name)
837 translate_keyname(&keysym, &x11name, NULL, TRANSLATE_X11KEYNAME_TO_KEYSYM);
841 char getCharFromKeySym(KeySym keysym)
843 char *keyname = getKeyNameFromKeySym(keysym);
846 if (strlen(keyname) == 1)
848 else if (strcmp(keyname, "space") == 0)
850 else if (strcmp(keyname, "circumflex") == 0)
856 #define TRANSLATE_JOYSYMBOL_TO_JOYNAME 0
857 #define TRANSLATE_JOYNAME_TO_JOYSYMBOL 1
859 void translate_joyname(int *joysymbol, char **name, int mode)
867 { JOY_LEFT, "joystick_left" },
868 { JOY_RIGHT, "joystick_right" },
869 { JOY_UP, "joystick_up" },
870 { JOY_DOWN, "joystick_down" },
871 { JOY_BUTTON_1, "joystick_button_1" },
872 { JOY_BUTTON_2, "joystick_button_2" },
877 if (mode == TRANSLATE_JOYSYMBOL_TO_JOYNAME)
879 *name = "[undefined]";
883 if (*joysymbol == translate_joy[i].joysymbol)
885 *name = translate_joy[i].name;
890 else if (mode == TRANSLATE_JOYNAME_TO_JOYSYMBOL)
896 if (strcmp(*name, translate_joy[i].name) == 0)
898 *joysymbol = translate_joy[i].joysymbol;
905 char *getJoyNameFromJoySymbol(int joysymbol)
909 translate_joyname(&joysymbol, &name, TRANSLATE_JOYSYMBOL_TO_JOYNAME);
913 int getJoySymbolFromJoyName(char *name)
917 translate_joyname(&joysymbol, &name, TRANSLATE_JOYNAME_TO_JOYSYMBOL);
921 int getJoystickNrFromDeviceName(char *device_name)
926 if (device_name == NULL || device_name[0] == '\0')
929 c = device_name[strlen(device_name) - 1];
931 if (c >= '0' && c <= '9')
932 joystick_nr = (int)(c - '0');
934 if (joystick_nr < 0 || joystick_nr >= MAX_PLAYERS)
940 /* ----------------------------------------------------------------- */
941 /* the following is only for debugging purpose and normally not used */
942 /* ----------------------------------------------------------------- */
944 #define DEBUG_NUM_TIMESTAMPS 3
946 void debug_print_timestamp(int counter_nr, char *message)
948 static long counter[DEBUG_NUM_TIMESTAMPS][2];
950 if (counter_nr >= DEBUG_NUM_TIMESTAMPS)
951 Error(ERR_EXIT, "debugging: increase DEBUG_NUM_TIMESTAMPS in misc.c");
953 counter[counter_nr][0] = Counter();
956 printf("%s %.2f seconds\n", message,
957 (float)(counter[counter_nr][0] - counter[counter_nr][1]) / 1000);
959 counter[counter_nr][1] = Counter();