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>
30 /* maximal allowed length of a command line option */
31 #define MAX_OPTION_LEN 256
33 static unsigned long mainCounter(int mode)
35 static struct timeval base_time = { 0, 0 };
36 struct timeval current_time;
37 unsigned long counter_ms;
39 gettimeofday(¤t_time, NULL);
41 if (mode == INIT_COUNTER || current_time.tv_sec < base_time.tv_sec)
42 base_time = current_time;
44 counter_ms = (current_time.tv_sec - base_time.tv_sec) * 1000
45 + (current_time.tv_usec - base_time.tv_usec) / 1000;
47 return counter_ms; /* return milliseconds since last init */
50 void InitCounter() /* set counter back to zero */
52 mainCounter(INIT_COUNTER);
55 unsigned long Counter() /* get milliseconds since last call of InitCounter() */
57 return(mainCounter(READ_COUNTER));
60 static void sleep_milliseconds(unsigned long milliseconds_delay)
62 if (milliseconds_delay < 5)
64 /* we want to wait only a few ms -- if we assume that we have a
65 kernel timer resolution of 10 ms, we would wait far to long;
66 therefore it's better to do a short interval of busy waiting
67 to get our sleeping time more accurate */
69 unsigned long base_counter = Counter(), actual_counter = Counter();
71 while (actual_counter < base_counter + milliseconds_delay &&
72 actual_counter >= base_counter)
73 actual_counter = Counter();
79 delay.tv_sec = milliseconds_delay / 1000;
80 delay.tv_usec = 1000 * (milliseconds_delay % 1000);
82 if (select(0, NULL, NULL, NULL, &delay) != 0)
83 Error(ERR_WARN, "sleep_milliseconds(): select() failed");
87 void Delay(unsigned long delay) /* Sleep specified number of milliseconds */
89 sleep_milliseconds(delay);
92 boolean FrameReached(unsigned long *frame_counter_var,
93 unsigned long frame_delay)
95 unsigned long actual_frame_counter = FrameCounter;
97 if (actual_frame_counter < *frame_counter_var+frame_delay &&
98 actual_frame_counter >= *frame_counter_var)
101 *frame_counter_var = actual_frame_counter;
105 boolean DelayReached(unsigned long *counter_var,
108 unsigned long actual_counter = Counter();
110 if (actual_counter < *counter_var + delay &&
111 actual_counter >= *counter_var)
114 *counter_var = actual_counter;
118 void WaitUntilDelayReached(unsigned long *counter_var, unsigned long delay)
120 unsigned long actual_counter;
124 actual_counter = Counter();
126 if (actual_counter < *counter_var + delay &&
127 actual_counter >= *counter_var)
128 sleep_milliseconds((*counter_var + delay - actual_counter) / 2);
133 *counter_var = actual_counter;
136 char *int2str(int number, int size)
145 sprintf(s, " %09d", number);
146 return &s[strlen(s) - size];
150 sprintf(s, "%d", number);
155 unsigned int SimpleRND(unsigned int max)
157 static unsigned long root = 654321;
158 struct timeval current_time;
160 gettimeofday(¤t_time,NULL);
161 root = root * 4253261 + current_time.tv_sec + current_time.tv_usec;
166 static unsigned int last_RND_value = 0;
168 unsigned int last_RND()
170 return last_RND_value;
174 unsigned int RND(unsigned int max)
177 return (last_RND_value = random_linux_libc() % max);
179 return (random_linux_libc() % max);
183 unsigned int InitRND(long seed)
185 struct timeval current_time;
187 if (seed == NEW_RANDOMIZE)
189 gettimeofday(¤t_time,NULL);
190 srandom_linux_libc((unsigned int) current_time.tv_usec);
191 return (unsigned int)current_time.tv_usec;
195 srandom_linux_libc((unsigned int) seed);
196 return (unsigned int)seed;
204 if (!(pwd = getpwuid(getuid())))
212 static char *home_dir = NULL;
216 if (!(home_dir = getenv("HOME")))
220 if ((pwd = getpwuid(getuid())))
221 home_dir = pwd->pw_dir;
230 char *getPath2(char *path1, char *path2)
232 char *complete_path = checked_malloc(strlen(path1) + strlen(path2) + 2);
234 sprintf(complete_path, "%s/%s", path1, path2);
235 return complete_path;
238 char *getStringCopy(char *s)
240 char *s_copy = checked_malloc(strlen(s) + 1);
246 char *getStringToLower(char *s)
248 char *s_copy = checked_malloc(strlen(s) + 1);
249 char *s_ptr = s_copy;
252 *s_ptr++ = tolower(*s++);
257 void MarkTileDirty(int x, int y)
259 int xx = redraw_x1 + x;
260 int yy = redraw_y1 + y;
265 redraw[xx][yy] = TRUE;
266 redraw_mask |= REDRAW_TILES;
269 void GetOptions(char *argv[])
271 char **options_left = &argv[1];
273 /* initialize global program options */
274 options.display_name = NULL;
275 options.server_host = NULL;
276 options.server_port = 0;
277 options.base_directory = BASE_PATH;
278 options.level_directory = BASE_PATH "/" LEVELS_DIRECTORY;
279 options.serveronly = FALSE;
280 options.network = FALSE;
281 options.verbose = FALSE;
283 while (*options_left)
285 char option_str[MAX_OPTION_LEN];
286 char *option = options_left[0];
287 char *next_option = options_left[1];
288 char *option_arg = NULL;
289 int option_len = strlen(option);
291 strcpy(option_str, option); /* copy argument into buffer */
294 if (strcmp(option, "--") == 0) /* stop scanning arguments */
297 if (option_len >= MAX_OPTION_LEN)
298 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
300 if (strncmp(option, "--", 2) == 0) /* treat '--' like '-' */
303 option_arg = strchr(option, '=');
304 if (option_arg == NULL) /* no '=' in option */
305 option_arg = next_option;
308 *option_arg++ = '\0'; /* cut argument from option */
309 if (*option_arg == '\0') /* no argument after '=' */
310 Error(ERR_EXIT_HELP, "option '%s' has invalid argument", option_str);
313 option_len = strlen(option);
315 if (strcmp(option, "-") == 0)
316 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
317 else if (strncmp(option, "-help", option_len) == 0)
319 printf("Usage: %s [options] [server.name [port]]\n"
321 " -d, --display machine:0 X server display\n"
322 " -b, --basepath directory alternative base directory\n"
323 " -l, --levels directory alternative level directory\n"
324 " -s, --serveronly only start network server\n"
325 " -n, --network network multiplayer game\n"
326 " -v, --verbose verbose mode\n",
330 else if (strncmp(option, "-display", option_len) == 0)
332 if (option_arg == NULL)
333 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
335 options.display_name = option_arg;
336 if (option_arg == next_option)
339 printf("--display == '%s'\n", options.display_name);
341 else if (strncmp(option, "-basepath", option_len) == 0)
343 if (option_arg == NULL)
344 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
346 options.base_directory = option_arg;
347 if (option_arg == next_option)
350 printf("--basepath == '%s'\n", options.base_directory);
352 /* adjust path for level directory accordingly */
353 options.level_directory = checked_malloc(strlen(options.base_directory) +
354 strlen(LEVELS_DIRECTORY) + 2);
355 sprintf(options.level_directory, "%s/%s",
356 options.base_directory, LEVELS_DIRECTORY);
358 else if (strncmp(option, "-levels", option_len) == 0)
360 if (option_arg == NULL)
361 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
363 options.level_directory = option_arg;
364 if (option_arg == next_option)
367 printf("--levels == '%s'\n", options.level_directory);
369 else if (strncmp(option, "-network", option_len) == 0)
371 printf("--network\n");
373 options.network = TRUE;
375 else if (strncmp(option, "-serveronly", option_len) == 0)
377 printf("--serveronly\n");
379 options.serveronly = TRUE;
381 else if (strncmp(option, "-verbose", option_len) == 0)
383 printf("--verbose\n");
385 options.verbose = TRUE;
387 else if (*option == '-')
388 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option_str);
389 else if (options.server_host == NULL)
391 options.server_host = *options_left;
393 printf("server.name == '%s'\n", options.server_host);
395 else if (options.server_port == 0)
397 options.server_port = atoi(*options_left);
398 if (options.server_port < 1024)
399 Error(ERR_EXIT_HELP, "bad port number '%d'", options.server_port);
401 printf("port == %d\n", options.server_port);
404 Error(ERR_EXIT_HELP, "too many arguments");
410 void Error(int mode, char *format, ...)
412 FILE *output_stream = stderr;
413 char *process_name = "";
415 if (mode & ERR_SOUNDSERVER)
416 process_name = " sound server";
422 fprintf(output_stream, "%s%s: ", program_name, process_name);
425 fprintf(output_stream, "warning: ");
427 va_start(ap, format);
428 vfprintf(output_stream, format, ap);
431 fprintf(output_stream, "\n");
435 fprintf(output_stream, "%s: Try option '--help' for more information.\n",
440 fprintf(output_stream, "%s%s: aborting\n", program_name, process_name);
445 void *checked_malloc(unsigned long size)
452 Error(ERR_EXIT, "cannot allocate %d bytes -- out of memory", size);
457 void *checked_calloc(unsigned long size)
461 ptr = calloc(1, size);
464 Error(ERR_EXIT, "cannot allocate %d bytes -- out of memory", size);
469 #define TRANSLATE_KEYSYM_TO_KEYNAME 0
470 #define TRANSLATE_KEYSYM_TO_X11KEYNAME 1
471 #define TRANSLATE_X11KEYNAME_TO_KEYSYM 2
473 void translate_keyname(KeySym *keysym, char **x11name, char **name, int mode)
482 /* normal cursor keys */
483 { XK_Left, "XK_Left", "cursor left" },
484 { XK_Right, "XK_Right", "cursor right" },
485 { XK_Up, "XK_Up", "cursor up" },
486 { XK_Down, "XK_Down", "cursor down" },
488 /* keypad cursor keys */
490 { XK_KP_Left, "XK_KP_Left", "keypad left" },
491 { XK_KP_Right, "XK_KP_Right", "keypad right" },
492 { XK_KP_Up, "XK_KP_Up", "keypad up" },
493 { XK_KP_Down, "XK_KP_Down", "keypad down" },
496 /* other keypad keys */
498 { XK_KP_Enter, "XK_KP_Enter", "keypad enter" },
499 { XK_KP_Add, "XK_KP_Add", "keypad +" },
500 { XK_KP_Subtract, "XK_KP_Subtract", "keypad -" },
501 { XK_KP_Multiply, "XK_KP_Multiply", "keypad mltply" },
502 { XK_KP_Divide, "XK_KP_Divide", "keypad /" },
503 { XK_KP_Separator, "XK_KP_Separator", "keypad ," },
507 { XK_Shift_L, "XK_Shift_L", "left shift" },
508 { XK_Shift_R, "XK_Shift_R", "right shift" },
509 { XK_Control_L, "XK_Control_L", "left control" },
510 { XK_Control_R, "XK_Control_R", "right control" },
511 { XK_Meta_L, "XK_Meta_L", "left meta" },
512 { XK_Meta_R, "XK_Meta_R", "right meta" },
513 { XK_Alt_L, "XK_Alt_L", "left alt" },
514 { XK_Alt_R, "XK_Alt_R", "right alt" },
515 { XK_Mode_switch, "XK_Mode_switch", "mode switch" },
516 { XK_Multi_key, "XK_Multi_key", "multi key" },
518 /* some special keys */
519 { XK_BackSpace, "XK_BackSpace", "backspace" },
520 { XK_Delete, "XK_Delete", "delete" },
521 { XK_Insert, "XK_Insert", "insert" },
522 { XK_Tab, "XK_Tab", "tab" },
523 { XK_Home, "XK_Home", "home" },
524 { XK_End, "XK_End", "end" },
525 { XK_Page_Up, "XK_Page_Up", "page up" },
526 { XK_Page_Down, "XK_Page_Down", "page down" },
527 { XK_space, "XK_space", "space" },
529 /* even more special keys */
530 { XK_adiaeresis, "XK_adiaeresis", "ä" },
531 { XK_odiaeresis, "XK_odiaeresis", "ö" },
532 { XK_udiaeresis, "XK_udiaeresis", "ü" },
533 { XK_apostrophe, "XK_apostrophe", "'" },
534 { XK_plus, "XK_plus", "+" },
535 { XK_minus, "XK_minus", "-" },
536 { XK_comma, "XK_comma", "," },
537 { XK_period, "XK_period", "." },
538 { XK_numbersign, "XK_numbersign", "#" },
539 { XK_less, "XK_less", "less" },
540 { XK_greater, "XK_greater", "greater" },
541 { XK_asciicircum, "XK_asciicircum", "circumflex" },
542 { XK_ssharp, "XK_ssharp", "sharp s" },
544 /* end-of-array identifier */
550 if (mode == TRANSLATE_KEYSYM_TO_KEYNAME)
552 static char name_buffer[30];
553 KeySym key = *keysym;
555 if (key >= XK_A && key <= XK_Z)
556 sprintf(name_buffer, "%c", 'A' + (char)(key - XK_A));
557 else if (key >= XK_a && key <= XK_z)
558 sprintf(name_buffer, "%c", 'a' + (char)(key - XK_a));
559 else if (key >= XK_0 && key <= XK_9)
560 sprintf(name_buffer, "%c", '0' + (char)(key - XK_0));
561 else if (key >= XK_KP_0 && key <= XK_KP_9)
562 sprintf(name_buffer, "keypad %c", '0' + (char)(key - XK_KP_0));
563 else if (key >= XK_F1 && key <= XK_F24)
564 sprintf(name_buffer, "function F%d", (int)(key - XK_F1 + 1));
565 else if (key == KEY_UNDEFINDED)
566 strcpy(name_buffer, "(undefined)");
573 if (key == translate_key[i].keysym)
575 strcpy(name_buffer, translate_key[i].name);
579 while (translate_key[++i].name);
581 if (!translate_key[i].name)
582 strcpy(name_buffer, "(unknown)");
587 else if (mode == TRANSLATE_KEYSYM_TO_X11KEYNAME)
589 static char name_buffer[30];
590 KeySym key = *keysym;
592 if (key >= XK_A && key <= XK_Z)
593 sprintf(name_buffer, "XK_%c", 'A' + (char)(key - XK_A));
594 else if (key >= XK_a && key <= XK_z)
595 sprintf(name_buffer, "XK_%c", 'a' + (char)(key - XK_a));
596 else if (key >= XK_0 && key <= XK_9)
597 sprintf(name_buffer, "XK_%c", '0' + (char)(key - XK_0));
598 else if (key >= XK_KP_0 && key <= XK_KP_9)
599 sprintf(name_buffer, "XK_KP_%c", '0' + (char)(key - XK_KP_0));
600 else if (key >= XK_F1 && key <= XK_F24)
601 sprintf(name_buffer, "XK_F%d", (int)(key - XK_F1 + 1));
602 else if (key == KEY_UNDEFINDED)
603 strcpy(name_buffer, "[undefined]");
610 if (key == translate_key[i].keysym)
612 strcpy(name_buffer, translate_key[i].x11name);
616 while (translate_key[++i].x11name);
618 if (!translate_key[i].x11name)
619 sprintf(name_buffer, "0x%04lx", (unsigned long)key);
622 *x11name = name_buffer;
624 else if (mode == TRANSLATE_X11KEYNAME_TO_KEYSYM)
626 KeySym key = XK_VoidSymbol;
627 char *name_ptr = *x11name;
629 if (strncmp(name_ptr, "XK_", 3) == 0 && strlen(name_ptr) == 4)
631 char c = name_ptr[3];
633 if (c >= 'A' && c <= 'Z')
634 key = XK_A + (KeySym)(c - 'A');
635 else if (c >= 'a' && c <= 'z')
636 key = XK_a + (KeySym)(c - 'a');
637 else if (c >= '0' && c <= '9')
638 key = XK_0 + (KeySym)(c - '0');
640 else if (strncmp(name_ptr, "XK_KP_", 6) == 0 && strlen(name_ptr) == 7)
642 char c = name_ptr[6];
644 if (c >= '0' && c <= '9')
645 key = XK_0 + (KeySym)(c - '0');
647 else if (strncmp(name_ptr, "XK_F", 4) == 0 && strlen(name_ptr) <= 6)
649 char c1 = name_ptr[4];
650 char c2 = name_ptr[5];
653 if ((c1 >= '0' && c1 <= '9') &&
654 ((c2 >= '0' && c1 <= '9') || c2 == '\0'))
655 d = atoi(&name_ptr[4]);
657 if (d >=1 && d <= 24)
658 key = XK_F1 + (KeySym)(d - 1);
660 else if (strncmp(name_ptr, "XK_", 3) == 0)
666 if (strcmp(name_ptr, translate_key[i].x11name) == 0)
668 key = translate_key[i].keysym;
672 while (translate_key[++i].x11name);
674 else if (strncmp(name_ptr, "0x", 2) == 0)
676 unsigned long value = 0;
682 char c = *name_ptr++;
685 if (c >= '0' && c <= '9')
687 else if (c >= 'a' && c <= 'f')
688 d = (int)(c - 'a' + 10);
689 else if (c >= 'A' && c <= 'F')
690 d = (int)(c - 'A' + 10);
698 value = value * 16 + d;
709 char *getKeyNameFromKeySym(KeySym keysym)
713 translate_keyname(&keysym, NULL, &name, TRANSLATE_KEYSYM_TO_KEYNAME);
717 char *getX11KeyNameFromKeySym(KeySym keysym)
721 translate_keyname(&keysym, &x11name, NULL, TRANSLATE_KEYSYM_TO_X11KEYNAME);
725 KeySym getKeySymFromX11KeyName(char *x11name)
729 translate_keyname(&keysym, &x11name, NULL, TRANSLATE_X11KEYNAME_TO_KEYSYM);
733 #define TRANSLATE_JOYSYMBOL_TO_JOYNAME 0
734 #define TRANSLATE_JOYNAME_TO_JOYSYMBOL 1
736 void translate_joyname(int *joysymbol, char **name, int mode)
744 { JOY_LEFT, "joystick_left" },
745 { JOY_RIGHT, "joystick_right" },
746 { JOY_UP, "joystick_up" },
747 { JOY_DOWN, "joystick_down" },
748 { JOY_BUTTON_1, "joystick_button_1" },
749 { JOY_BUTTON_2, "joystick_button_2" },
754 if (mode == TRANSLATE_JOYSYMBOL_TO_JOYNAME)
756 *name = "[undefined]";
760 if (*joysymbol == translate_joy[i].joysymbol)
762 *name = translate_joy[i].name;
767 else if (mode == TRANSLATE_JOYNAME_TO_JOYSYMBOL)
773 if (strcmp(*name, translate_joy[i].name) == 0)
775 *joysymbol = translate_joy[i].joysymbol;
782 char *getJoyNameFromJoySymbol(int joysymbol)
786 translate_joyname(&joysymbol, &name, TRANSLATE_JOYSYMBOL_TO_JOYNAME);
790 int getJoySymbolFromJoyName(char *name)
794 translate_joyname(&joysymbol, &name, TRANSLATE_JOYNAME_TO_JOYSYMBOL);
798 /* the following is only for debugging purpose and normally not used */
799 #define DEBUG_NUM_TIMESTAMPS 3
801 void debug_print_timestamp(int counter_nr, char *message)
803 static long counter[DEBUG_NUM_TIMESTAMPS][2];
805 if (counter_nr >= DEBUG_NUM_TIMESTAMPS)
806 Error(ERR_EXIT, "debugging: increase DEBUG_NUM_TIMESTAMPS in misc.c");
808 counter[counter_nr][0] = Counter();
811 printf("%s %.2f seconds\n", message,
812 (float)(counter[counter_nr][0] - counter[counter_nr][1]) / 1000);
814 counter[counter_nr][1] = Counter();