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 GetOptions(char *argv[])
320 char **options_left = &argv[1];
322 /* initialize global program options */
323 options.display_name = NULL;
324 options.server_host = NULL;
325 options.server_port = 0;
326 options.base_directory = BASE_PATH;
327 options.level_directory = BASE_PATH "/" LEVELS_DIRECTORY;
328 options.serveronly = FALSE;
329 options.network = FALSE;
330 options.verbose = FALSE;
332 while (*options_left)
334 char option_str[MAX_OPTION_LEN];
335 char *option = options_left[0];
336 char *next_option = options_left[1];
337 char *option_arg = NULL;
338 int option_len = strlen(option);
340 if (option_len >= MAX_OPTION_LEN)
341 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
343 strcpy(option_str, option); /* copy argument into buffer */
346 if (strcmp(option, "--") == 0) /* stop scanning arguments */
349 if (strncmp(option, "--", 2) == 0) /* treat '--' like '-' */
352 option_arg = strchr(option, '=');
353 if (option_arg == NULL) /* no '=' in option */
354 option_arg = next_option;
357 *option_arg++ = '\0'; /* cut argument from option */
358 if (*option_arg == '\0') /* no argument after '=' */
359 Error(ERR_EXIT_HELP, "option '%s' has invalid argument", option_str);
362 option_len = strlen(option);
364 if (strcmp(option, "-") == 0)
365 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
366 else if (strncmp(option, "-help", option_len) == 0)
368 printf("Usage: %s [options] [server.name [port]]\n"
370 " -d, --display machine:0 X server display\n"
371 " -b, --basepath directory alternative base directory\n"
372 " -l, --levels directory alternative level directory\n"
373 " -s, --serveronly only start network server\n"
374 " -n, --network network multiplayer game\n"
375 " -v, --verbose verbose mode\n",
379 else if (strncmp(option, "-display", option_len) == 0)
381 if (option_arg == NULL)
382 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
384 options.display_name = option_arg;
385 if (option_arg == next_option)
388 else if (strncmp(option, "-basepath", option_len) == 0)
390 if (option_arg == NULL)
391 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
393 options.base_directory = option_arg;
394 if (option_arg == next_option)
397 /* adjust path for level directory accordingly */
398 options.level_directory =
399 getPath2(options.base_directory, LEVELS_DIRECTORY);
401 else if (strncmp(option, "-levels", option_len) == 0)
403 if (option_arg == NULL)
404 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
406 options.level_directory = option_arg;
407 if (option_arg == next_option)
410 else if (strncmp(option, "-network", option_len) == 0)
412 options.network = TRUE;
414 else if (strncmp(option, "-serveronly", option_len) == 0)
416 options.serveronly = TRUE;
418 else if (strncmp(option, "-verbose", option_len) == 0)
420 options.verbose = TRUE;
422 else if (*option == '-')
424 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option_str);
426 else if (options.server_host == NULL)
428 options.server_host = *options_left;
430 else if (options.server_port == 0)
432 options.server_port = atoi(*options_left);
433 if (options.server_port < 1024)
434 Error(ERR_EXIT_HELP, "bad port number '%d'", options.server_port);
437 Error(ERR_EXIT_HELP, "too many arguments");
443 void Error(int mode, char *format, ...)
445 char *process_name = "";
446 FILE *error = stderr;
448 /* display warnings only when running in verbose mode */
449 if (mode & ERR_WARN && !options.verbose)
453 if ((error = openErrorFile()) == NULL)
455 printf("Cannot write to error output file!\n");
460 if (mode & ERR_SOUND_SERVER)
461 process_name = " sound server";
462 else if (mode & ERR_NETWORK_SERVER)
463 process_name = " network server";
464 else if (mode & ERR_NETWORK_CLIENT)
465 process_name = " network client **";
471 fprintf(error, "%s%s: ", program_name, process_name);
474 fprintf(error, "warning: ");
476 va_start(ap, format);
477 vfprintf(error, format, ap);
480 fprintf(error, "\n");
484 fprintf(error, "%s: Try option '--help' for more information.\n",
488 fprintf(error, "%s%s: aborting\n", program_name, process_name);
495 if (mode & ERR_FROM_SERVER)
496 exit(1); /* child process: normal exit */
498 CloseAllAndExit(1); /* main process: clean up stuff */
502 void *checked_malloc(unsigned long size)
509 Error(ERR_EXIT, "cannot allocate %d bytes -- out of memory", size);
514 void *checked_calloc(unsigned long size)
518 ptr = calloc(1, size);
521 Error(ERR_EXIT, "cannot allocate %d bytes -- out of memory", size);
526 #define TRANSLATE_KEYSYM_TO_KEYNAME 0
527 #define TRANSLATE_KEYSYM_TO_X11KEYNAME 1
528 #define TRANSLATE_X11KEYNAME_TO_KEYSYM 2
530 void translate_keyname(KeySym *keysym, char **x11name, char **name, int mode)
539 /* normal cursor keys */
540 { XK_Left, "XK_Left", "cursor left" },
541 { XK_Right, "XK_Right", "cursor right" },
542 { XK_Up, "XK_Up", "cursor up" },
543 { XK_Down, "XK_Down", "cursor down" },
545 /* keypad cursor keys */
547 { XK_KP_Left, "XK_KP_Left", "keypad left" },
548 { XK_KP_Right, "XK_KP_Right", "keypad right" },
549 { XK_KP_Up, "XK_KP_Up", "keypad up" },
550 { XK_KP_Down, "XK_KP_Down", "keypad down" },
553 /* other keypad keys */
555 { XK_KP_Enter, "XK_KP_Enter", "keypad enter" },
556 { XK_KP_Add, "XK_KP_Add", "keypad +" },
557 { XK_KP_Subtract, "XK_KP_Subtract", "keypad -" },
558 { XK_KP_Multiply, "XK_KP_Multiply", "keypad mltply" },
559 { XK_KP_Divide, "XK_KP_Divide", "keypad /" },
560 { XK_KP_Separator, "XK_KP_Separator", "keypad ," },
564 { XK_Shift_L, "XK_Shift_L", "left shift" },
565 { XK_Shift_R, "XK_Shift_R", "right shift" },
566 { XK_Control_L, "XK_Control_L", "left control" },
567 { XK_Control_R, "XK_Control_R", "right control" },
568 { XK_Meta_L, "XK_Meta_L", "left meta" },
569 { XK_Meta_R, "XK_Meta_R", "right meta" },
570 { XK_Alt_L, "XK_Alt_L", "left alt" },
571 { XK_Alt_R, "XK_Alt_R", "right alt" },
572 { XK_Mode_switch, "XK_Mode_switch", "mode switch" },
573 { XK_Multi_key, "XK_Multi_key", "multi key" },
575 /* some special keys */
576 { XK_BackSpace, "XK_BackSpace", "backspace" },
577 { XK_Delete, "XK_Delete", "delete" },
578 { XK_Insert, "XK_Insert", "insert" },
579 { XK_Tab, "XK_Tab", "tab" },
580 { XK_Home, "XK_Home", "home" },
581 { XK_End, "XK_End", "end" },
582 { XK_Page_Up, "XK_Page_Up", "page up" },
583 { XK_Page_Down, "XK_Page_Down", "page down" },
586 /* ASCII 0x20 to 0x40 keys (except numbers) */
587 { XK_space, "XK_space", "space" },
588 { XK_exclam, "XK_exclam", "!" },
589 { XK_quotedbl, "XK_quotedbl", "\"" },
590 { XK_numbersign, "XK_numbersign", "#" },
591 { XK_dollar, "XK_dollar", "$" },
592 { XK_percent, "XK_percent", "%" },
593 { XK_ampersand, "XK_ampersand", "&" },
594 { XK_apostrophe, "XK_apostrophe", "'" },
595 { XK_parenleft, "XK_parenleft", "(" },
596 { XK_parenright, "XK_parenright", ")" },
597 { XK_asterisk, "XK_asterisk", "*" },
598 { XK_plus, "XK_plus", "+" },
599 { XK_comma, "XK_comma", "," },
600 { XK_minus, "XK_minus", "-" },
601 { XK_period, "XK_period", "." },
602 { XK_slash, "XK_slash", "/" },
603 { XK_colon, "XK_colon", ":" },
604 { XK_semicolon, "XK_semicolon", ";" },
605 { XK_less, "XK_less", "less" },
606 { XK_equal, "XK_equal", "equal" },
607 { XK_greater, "XK_greater", "greater" },
608 { XK_question, "XK_question", "?" },
609 { XK_at, "XK_at", "@" },
611 /* more ASCII keys */
612 { XK_bracketleft, "XK_bracketleft", "[" },
613 { XK_backslash, "XK_backslash", "backslash" },
614 { XK_bracketright, "XK_bracketright", "]" },
615 { XK_asciicircum, "XK_asciicircum", "circumflex" },
616 { XK_underscore, "XK_underscore", "_" },
617 { XK_grave, "XK_grave", "grave" },
618 { XK_quoteleft, "XK_quoteleft", "quote left" },
619 { XK_braceleft, "XK_braceleft", "brace left" },
620 { XK_bar, "XK_bar", "bar" },
621 { XK_braceright, "XK_braceright", "brace right" },
622 { XK_asciitilde, "XK_asciitilde", "ascii tilde" },
624 /* special (non-ASCII) keys */
625 { XK_Adiaeresis, "XK_Adiaeresis", "Ă„" },
626 { XK_Odiaeresis, "XK_Odiaeresis", "Ă–" },
627 { XK_Udiaeresis, "XK_Udiaeresis", "Ăœ" },
628 { XK_adiaeresis, "XK_adiaeresis", "ä" },
629 { XK_odiaeresis, "XK_odiaeresis", "ö" },
630 { XK_udiaeresis, "XK_udiaeresis", "Ă¼" },
631 { XK_ssharp, "XK_ssharp", "sharp s" },
633 /* end-of-array identifier */
639 if (mode == TRANSLATE_KEYSYM_TO_KEYNAME)
641 static char name_buffer[30];
642 KeySym key = *keysym;
644 if (key >= XK_A && key <= XK_Z)
645 sprintf(name_buffer, "%c", 'A' + (char)(key - XK_A));
646 else if (key >= XK_a && key <= XK_z)
647 sprintf(name_buffer, "%c", 'a' + (char)(key - XK_a));
648 else if (key >= XK_0 && key <= XK_9)
649 sprintf(name_buffer, "%c", '0' + (char)(key - XK_0));
650 else if (key >= XK_KP_0 && key <= XK_KP_9)
651 sprintf(name_buffer, "keypad %c", '0' + (char)(key - XK_KP_0));
652 else if (key >= XK_F1 && key <= XK_F24)
653 sprintf(name_buffer, "function F%d", (int)(key - XK_F1 + 1));
654 else if (key == KEY_UNDEFINDED)
655 strcpy(name_buffer, "(undefined)");
662 if (key == translate_key[i].keysym)
664 strcpy(name_buffer, translate_key[i].name);
668 while (translate_key[++i].name);
670 if (!translate_key[i].name)
671 strcpy(name_buffer, "(unknown)");
676 else if (mode == TRANSLATE_KEYSYM_TO_X11KEYNAME)
678 static char name_buffer[30];
679 KeySym key = *keysym;
681 if (key >= XK_A && key <= XK_Z)
682 sprintf(name_buffer, "XK_%c", 'A' + (char)(key - XK_A));
683 else if (key >= XK_a && key <= XK_z)
684 sprintf(name_buffer, "XK_%c", 'a' + (char)(key - XK_a));
685 else if (key >= XK_0 && key <= XK_9)
686 sprintf(name_buffer, "XK_%c", '0' + (char)(key - XK_0));
687 else if (key >= XK_KP_0 && key <= XK_KP_9)
688 sprintf(name_buffer, "XK_KP_%c", '0' + (char)(key - XK_KP_0));
689 else if (key >= XK_F1 && key <= XK_F24)
690 sprintf(name_buffer, "XK_F%d", (int)(key - XK_F1 + 1));
691 else if (key == KEY_UNDEFINDED)
692 strcpy(name_buffer, "[undefined]");
699 if (key == translate_key[i].keysym)
701 strcpy(name_buffer, translate_key[i].x11name);
705 while (translate_key[++i].x11name);
707 if (!translate_key[i].x11name)
708 sprintf(name_buffer, "0x%04lx", (unsigned long)key);
711 *x11name = name_buffer;
713 else if (mode == TRANSLATE_X11KEYNAME_TO_KEYSYM)
715 KeySym key = XK_VoidSymbol;
716 char *name_ptr = *x11name;
718 if (strncmp(name_ptr, "XK_", 3) == 0 && strlen(name_ptr) == 4)
720 char c = name_ptr[3];
722 if (c >= 'A' && c <= 'Z')
723 key = XK_A + (KeySym)(c - 'A');
724 else if (c >= 'a' && c <= 'z')
725 key = XK_a + (KeySym)(c - 'a');
726 else if (c >= '0' && c <= '9')
727 key = XK_0 + (KeySym)(c - '0');
729 else if (strncmp(name_ptr, "XK_KP_", 6) == 0 && strlen(name_ptr) == 7)
731 char c = name_ptr[6];
733 if (c >= '0' && c <= '9')
734 key = XK_0 + (KeySym)(c - '0');
736 else if (strncmp(name_ptr, "XK_F", 4) == 0 && strlen(name_ptr) <= 6)
738 char c1 = name_ptr[4];
739 char c2 = name_ptr[5];
742 if ((c1 >= '0' && c1 <= '9') &&
743 ((c2 >= '0' && c1 <= '9') || c2 == '\0'))
744 d = atoi(&name_ptr[4]);
746 if (d >=1 && d <= 24)
747 key = XK_F1 + (KeySym)(d - 1);
749 else if (strncmp(name_ptr, "XK_", 3) == 0)
755 if (strcmp(name_ptr, translate_key[i].x11name) == 0)
757 key = translate_key[i].keysym;
761 while (translate_key[++i].x11name);
763 else if (strncmp(name_ptr, "0x", 2) == 0)
765 unsigned long value = 0;
771 char c = *name_ptr++;
774 if (c >= '0' && c <= '9')
776 else if (c >= 'a' && c <= 'f')
777 d = (int)(c - 'a' + 10);
778 else if (c >= 'A' && c <= 'F')
779 d = (int)(c - 'A' + 10);
787 value = value * 16 + d;
798 char *getKeyNameFromKeySym(KeySym keysym)
802 translate_keyname(&keysym, NULL, &name, TRANSLATE_KEYSYM_TO_KEYNAME);
806 char *getX11KeyNameFromKeySym(KeySym keysym)
810 translate_keyname(&keysym, &x11name, NULL, TRANSLATE_KEYSYM_TO_X11KEYNAME);
814 KeySym getKeySymFromX11KeyName(char *x11name)
818 translate_keyname(&keysym, &x11name, NULL, TRANSLATE_X11KEYNAME_TO_KEYSYM);
822 char getCharFromKeySym(KeySym keysym)
824 char *keyname = getKeyNameFromKeySym(keysym);
827 if (strlen(keyname) == 1)
829 else if (strcmp(keyname, "space") == 0)
831 else if (strcmp(keyname, "less") == 0)
833 else if (strcmp(keyname, "equal") == 0)
835 else if (strcmp(keyname, "greater") == 0)
841 #define TRANSLATE_JOYSYMBOL_TO_JOYNAME 0
842 #define TRANSLATE_JOYNAME_TO_JOYSYMBOL 1
844 void translate_joyname(int *joysymbol, char **name, int mode)
852 { JOY_LEFT, "joystick_left" },
853 { JOY_RIGHT, "joystick_right" },
854 { JOY_UP, "joystick_up" },
855 { JOY_DOWN, "joystick_down" },
856 { JOY_BUTTON_1, "joystick_button_1" },
857 { JOY_BUTTON_2, "joystick_button_2" },
862 if (mode == TRANSLATE_JOYSYMBOL_TO_JOYNAME)
864 *name = "[undefined]";
868 if (*joysymbol == translate_joy[i].joysymbol)
870 *name = translate_joy[i].name;
875 else if (mode == TRANSLATE_JOYNAME_TO_JOYSYMBOL)
881 if (strcmp(*name, translate_joy[i].name) == 0)
883 *joysymbol = translate_joy[i].joysymbol;
890 char *getJoyNameFromJoySymbol(int joysymbol)
894 translate_joyname(&joysymbol, &name, TRANSLATE_JOYSYMBOL_TO_JOYNAME);
898 int getJoySymbolFromJoyName(char *name)
902 translate_joyname(&joysymbol, &name, TRANSLATE_JOYNAME_TO_JOYSYMBOL);
906 int getJoystickNrFromDeviceName(char *device_name)
911 if (device_name == NULL || device_name[0] == '\0')
914 c = device_name[strlen(device_name) - 1];
916 if (c >= '0' && c <= '9')
917 joystick_nr = (int)(c - '0');
919 if (joystick_nr < 0 || joystick_nr >= MAX_PLAYERS)
925 /* ----------------------------------------------------------------- */
926 /* the following is only for debugging purpose and normally not used */
927 /* ----------------------------------------------------------------- */
929 #define DEBUG_NUM_TIMESTAMPS 3
931 void debug_print_timestamp(int counter_nr, char *message)
933 static long counter[DEBUG_NUM_TIMESTAMPS][2];
935 if (counter_nr >= DEBUG_NUM_TIMESTAMPS)
936 Error(ERR_EXIT, "debugging: increase DEBUG_NUM_TIMESTAMPS in misc.c");
938 counter[counter_nr][0] = Counter();
941 printf("%s %.2f seconds\n", message,
942 (float)(counter[counter_nr][0] - counter[counter_nr][1]) / 1000);
944 counter[counter_nr][1] = Counter();