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) + 1 +
235 sprintf(complete_path, "%s/%s", path1, path2);
236 return complete_path;
239 char *getPath3(char *path1, char *path2, char *path3)
241 char *complete_path = checked_malloc(strlen(path1) + 1 +
245 sprintf(complete_path, "%s/%s/%s", path1, path2, path3);
246 return complete_path;
249 char *getStringCopy(char *s)
251 char *s_copy = checked_malloc(strlen(s) + 1);
257 char *getStringToLower(char *s)
259 char *s_copy = checked_malloc(strlen(s) + 1);
260 char *s_ptr = s_copy;
263 *s_ptr++ = tolower(*s++);
268 void MarkTileDirty(int x, int y)
270 int xx = redraw_x1 + x;
271 int yy = redraw_y1 + y;
276 redraw[xx][yy] = TRUE;
277 redraw_mask |= REDRAW_TILES;
280 void GetOptions(char *argv[])
282 char **options_left = &argv[1];
284 /* initialize global program options */
285 options.display_name = NULL;
286 options.server_host = NULL;
287 options.server_port = 0;
288 options.base_directory = BASE_PATH;
289 options.level_directory = BASE_PATH "/" LEVELS_DIRECTORY;
290 options.serveronly = FALSE;
291 options.network = FALSE;
292 options.verbose = FALSE;
294 while (*options_left)
296 char option_str[MAX_OPTION_LEN];
297 char *option = options_left[0];
298 char *next_option = options_left[1];
299 char *option_arg = NULL;
300 int option_len = strlen(option);
302 strcpy(option_str, option); /* copy argument into buffer */
305 if (strcmp(option, "--") == 0) /* stop scanning arguments */
308 if (option_len >= MAX_OPTION_LEN)
309 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
311 if (strncmp(option, "--", 2) == 0) /* treat '--' like '-' */
314 option_arg = strchr(option, '=');
315 if (option_arg == NULL) /* no '=' in option */
316 option_arg = next_option;
319 *option_arg++ = '\0'; /* cut argument from option */
320 if (*option_arg == '\0') /* no argument after '=' */
321 Error(ERR_EXIT_HELP, "option '%s' has invalid argument", option_str);
324 option_len = strlen(option);
326 if (strcmp(option, "-") == 0)
327 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
328 else if (strncmp(option, "-help", option_len) == 0)
330 printf("Usage: %s [options] [server.name [port]]\n"
332 " -d, --display machine:0 X server display\n"
333 " -b, --basepath directory alternative base directory\n"
334 " -l, --levels directory alternative level directory\n"
335 " -s, --serveronly only start network server\n"
336 " -n, --network network multiplayer game\n"
337 " -v, --verbose verbose mode\n",
341 else if (strncmp(option, "-display", option_len) == 0)
343 if (option_arg == NULL)
344 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
346 options.display_name = option_arg;
347 if (option_arg == next_option)
350 printf("--display == '%s'\n", options.display_name);
352 else if (strncmp(option, "-basepath", option_len) == 0)
354 if (option_arg == NULL)
355 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
357 options.base_directory = option_arg;
358 if (option_arg == next_option)
361 printf("--basepath == '%s'\n", options.base_directory);
363 /* adjust path for level directory accordingly */
364 options.level_directory = checked_malloc(strlen(options.base_directory) +
365 strlen(LEVELS_DIRECTORY) + 2);
366 sprintf(options.level_directory, "%s/%s",
367 options.base_directory, LEVELS_DIRECTORY);
369 else if (strncmp(option, "-levels", option_len) == 0)
371 if (option_arg == NULL)
372 Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
374 options.level_directory = option_arg;
375 if (option_arg == next_option)
378 printf("--levels == '%s'\n", options.level_directory);
380 else if (strncmp(option, "-network", option_len) == 0)
382 printf("--network\n");
384 options.network = TRUE;
386 else if (strncmp(option, "-serveronly", option_len) == 0)
388 printf("--serveronly\n");
390 options.serveronly = TRUE;
392 else if (strncmp(option, "-verbose", option_len) == 0)
394 printf("--verbose\n");
396 options.verbose = TRUE;
398 else if (*option == '-')
399 Error(ERR_EXIT_HELP, "unrecognized option '%s'", option_str);
400 else if (options.server_host == NULL)
402 options.server_host = *options_left;
404 printf("server.name == '%s'\n", options.server_host);
406 else if (options.server_port == 0)
408 options.server_port = atoi(*options_left);
409 if (options.server_port < 1024)
410 Error(ERR_EXIT_HELP, "bad port number '%d'", options.server_port);
412 printf("port == %d\n", options.server_port);
415 Error(ERR_EXIT_HELP, "too many arguments");
421 void Error(int mode, char *format, ...)
423 FILE *output_stream = stderr;
424 char *process_name = "";
426 if (mode & ERR_SOUNDSERVER)
427 process_name = " sound server";
433 fprintf(output_stream, "%s%s: ", program_name, process_name);
436 fprintf(output_stream, "warning: ");
438 va_start(ap, format);
439 vfprintf(output_stream, format, ap);
442 fprintf(output_stream, "\n");
446 fprintf(output_stream, "%s: Try option '--help' for more information.\n",
451 fprintf(output_stream, "%s%s: aborting\n", program_name, process_name);
456 void *checked_malloc(unsigned long size)
463 Error(ERR_EXIT, "cannot allocate %d bytes -- out of memory", size);
468 void *checked_calloc(unsigned long size)
472 ptr = calloc(1, size);
475 Error(ERR_EXIT, "cannot allocate %d bytes -- out of memory", size);
480 #define TRANSLATE_KEYSYM_TO_KEYNAME 0
481 #define TRANSLATE_KEYSYM_TO_X11KEYNAME 1
482 #define TRANSLATE_X11KEYNAME_TO_KEYSYM 2
484 void translate_keyname(KeySym *keysym, char **x11name, char **name, int mode)
493 /* normal cursor keys */
494 { XK_Left, "XK_Left", "cursor left" },
495 { XK_Right, "XK_Right", "cursor right" },
496 { XK_Up, "XK_Up", "cursor up" },
497 { XK_Down, "XK_Down", "cursor down" },
499 /* keypad cursor keys */
501 { XK_KP_Left, "XK_KP_Left", "keypad left" },
502 { XK_KP_Right, "XK_KP_Right", "keypad right" },
503 { XK_KP_Up, "XK_KP_Up", "keypad up" },
504 { XK_KP_Down, "XK_KP_Down", "keypad down" },
507 /* other keypad keys */
509 { XK_KP_Enter, "XK_KP_Enter", "keypad enter" },
510 { XK_KP_Add, "XK_KP_Add", "keypad +" },
511 { XK_KP_Subtract, "XK_KP_Subtract", "keypad -" },
512 { XK_KP_Multiply, "XK_KP_Multiply", "keypad mltply" },
513 { XK_KP_Divide, "XK_KP_Divide", "keypad /" },
514 { XK_KP_Separator, "XK_KP_Separator", "keypad ," },
518 { XK_Shift_L, "XK_Shift_L", "left shift" },
519 { XK_Shift_R, "XK_Shift_R", "right shift" },
520 { XK_Control_L, "XK_Control_L", "left control" },
521 { XK_Control_R, "XK_Control_R", "right control" },
522 { XK_Meta_L, "XK_Meta_L", "left meta" },
523 { XK_Meta_R, "XK_Meta_R", "right meta" },
524 { XK_Alt_L, "XK_Alt_L", "left alt" },
525 { XK_Alt_R, "XK_Alt_R", "right alt" },
526 { XK_Mode_switch, "XK_Mode_switch", "mode switch" },
527 { XK_Multi_key, "XK_Multi_key", "multi key" },
529 /* some special keys */
530 { XK_BackSpace, "XK_BackSpace", "backspace" },
531 { XK_Delete, "XK_Delete", "delete" },
532 { XK_Insert, "XK_Insert", "insert" },
533 { XK_Tab, "XK_Tab", "tab" },
534 { XK_Home, "XK_Home", "home" },
535 { XK_End, "XK_End", "end" },
536 { XK_Page_Up, "XK_Page_Up", "page up" },
537 { XK_Page_Down, "XK_Page_Down", "page down" },
538 { XK_space, "XK_space", "space" },
540 /* even more special keys */
541 { XK_adiaeresis, "XK_adiaeresis", "ä" },
542 { XK_odiaeresis, "XK_odiaeresis", "ö" },
543 { XK_udiaeresis, "XK_udiaeresis", "ü" },
544 { XK_apostrophe, "XK_apostrophe", "'" },
545 { XK_plus, "XK_plus", "+" },
546 { XK_minus, "XK_minus", "-" },
547 { XK_comma, "XK_comma", "," },
548 { XK_period, "XK_period", "." },
549 { XK_numbersign, "XK_numbersign", "#" },
550 { XK_less, "XK_less", "less" },
551 { XK_greater, "XK_greater", "greater" },
552 { XK_asciicircum, "XK_asciicircum", "circumflex" },
553 { XK_ssharp, "XK_ssharp", "sharp s" },
555 /* end-of-array identifier */
561 if (mode == TRANSLATE_KEYSYM_TO_KEYNAME)
563 static char name_buffer[30];
564 KeySym key = *keysym;
566 if (key >= XK_A && key <= XK_Z)
567 sprintf(name_buffer, "%c", 'A' + (char)(key - XK_A));
568 else if (key >= XK_a && key <= XK_z)
569 sprintf(name_buffer, "%c", 'a' + (char)(key - XK_a));
570 else if (key >= XK_0 && key <= XK_9)
571 sprintf(name_buffer, "%c", '0' + (char)(key - XK_0));
572 else if (key >= XK_KP_0 && key <= XK_KP_9)
573 sprintf(name_buffer, "keypad %c", '0' + (char)(key - XK_KP_0));
574 else if (key >= XK_F1 && key <= XK_F24)
575 sprintf(name_buffer, "function F%d", (int)(key - XK_F1 + 1));
576 else if (key == KEY_UNDEFINDED)
577 strcpy(name_buffer, "(undefined)");
584 if (key == translate_key[i].keysym)
586 strcpy(name_buffer, translate_key[i].name);
590 while (translate_key[++i].name);
592 if (!translate_key[i].name)
593 strcpy(name_buffer, "(unknown)");
598 else if (mode == TRANSLATE_KEYSYM_TO_X11KEYNAME)
600 static char name_buffer[30];
601 KeySym key = *keysym;
603 if (key >= XK_A && key <= XK_Z)
604 sprintf(name_buffer, "XK_%c", 'A' + (char)(key - XK_A));
605 else if (key >= XK_a && key <= XK_z)
606 sprintf(name_buffer, "XK_%c", 'a' + (char)(key - XK_a));
607 else if (key >= XK_0 && key <= XK_9)
608 sprintf(name_buffer, "XK_%c", '0' + (char)(key - XK_0));
609 else if (key >= XK_KP_0 && key <= XK_KP_9)
610 sprintf(name_buffer, "XK_KP_%c", '0' + (char)(key - XK_KP_0));
611 else if (key >= XK_F1 && key <= XK_F24)
612 sprintf(name_buffer, "XK_F%d", (int)(key - XK_F1 + 1));
613 else if (key == KEY_UNDEFINDED)
614 strcpy(name_buffer, "[undefined]");
621 if (key == translate_key[i].keysym)
623 strcpy(name_buffer, translate_key[i].x11name);
627 while (translate_key[++i].x11name);
629 if (!translate_key[i].x11name)
630 sprintf(name_buffer, "0x%04lx", (unsigned long)key);
633 *x11name = name_buffer;
635 else if (mode == TRANSLATE_X11KEYNAME_TO_KEYSYM)
637 KeySym key = XK_VoidSymbol;
638 char *name_ptr = *x11name;
640 if (strncmp(name_ptr, "XK_", 3) == 0 && strlen(name_ptr) == 4)
642 char c = name_ptr[3];
644 if (c >= 'A' && c <= 'Z')
645 key = XK_A + (KeySym)(c - 'A');
646 else if (c >= 'a' && c <= 'z')
647 key = XK_a + (KeySym)(c - 'a');
648 else if (c >= '0' && c <= '9')
649 key = XK_0 + (KeySym)(c - '0');
651 else if (strncmp(name_ptr, "XK_KP_", 6) == 0 && strlen(name_ptr) == 7)
653 char c = name_ptr[6];
655 if (c >= '0' && c <= '9')
656 key = XK_0 + (KeySym)(c - '0');
658 else if (strncmp(name_ptr, "XK_F", 4) == 0 && strlen(name_ptr) <= 6)
660 char c1 = name_ptr[4];
661 char c2 = name_ptr[5];
664 if ((c1 >= '0' && c1 <= '9') &&
665 ((c2 >= '0' && c1 <= '9') || c2 == '\0'))
666 d = atoi(&name_ptr[4]);
668 if (d >=1 && d <= 24)
669 key = XK_F1 + (KeySym)(d - 1);
671 else if (strncmp(name_ptr, "XK_", 3) == 0)
677 if (strcmp(name_ptr, translate_key[i].x11name) == 0)
679 key = translate_key[i].keysym;
683 while (translate_key[++i].x11name);
685 else if (strncmp(name_ptr, "0x", 2) == 0)
687 unsigned long value = 0;
693 char c = *name_ptr++;
696 if (c >= '0' && c <= '9')
698 else if (c >= 'a' && c <= 'f')
699 d = (int)(c - 'a' + 10);
700 else if (c >= 'A' && c <= 'F')
701 d = (int)(c - 'A' + 10);
709 value = value * 16 + d;
720 char *getKeyNameFromKeySym(KeySym keysym)
724 translate_keyname(&keysym, NULL, &name, TRANSLATE_KEYSYM_TO_KEYNAME);
728 char *getX11KeyNameFromKeySym(KeySym keysym)
732 translate_keyname(&keysym, &x11name, NULL, TRANSLATE_KEYSYM_TO_X11KEYNAME);
736 KeySym getKeySymFromX11KeyName(char *x11name)
740 translate_keyname(&keysym, &x11name, NULL, TRANSLATE_X11KEYNAME_TO_KEYSYM);
744 #define TRANSLATE_JOYSYMBOL_TO_JOYNAME 0
745 #define TRANSLATE_JOYNAME_TO_JOYSYMBOL 1
747 void translate_joyname(int *joysymbol, char **name, int mode)
755 { JOY_LEFT, "joystick_left" },
756 { JOY_RIGHT, "joystick_right" },
757 { JOY_UP, "joystick_up" },
758 { JOY_DOWN, "joystick_down" },
759 { JOY_BUTTON_1, "joystick_button_1" },
760 { JOY_BUTTON_2, "joystick_button_2" },
765 if (mode == TRANSLATE_JOYSYMBOL_TO_JOYNAME)
767 *name = "[undefined]";
771 if (*joysymbol == translate_joy[i].joysymbol)
773 *name = translate_joy[i].name;
778 else if (mode == TRANSLATE_JOYNAME_TO_JOYSYMBOL)
784 if (strcmp(*name, translate_joy[i].name) == 0)
786 *joysymbol = translate_joy[i].joysymbol;
793 char *getJoyNameFromJoySymbol(int joysymbol)
797 translate_joyname(&joysymbol, &name, TRANSLATE_JOYSYMBOL_TO_JOYNAME);
801 int getJoySymbolFromJoyName(char *name)
805 translate_joyname(&joysymbol, &name, TRANSLATE_JOYNAME_TO_JOYSYMBOL);
809 /* the following is only for debugging purpose and normally not used */
810 #define DEBUG_NUM_TIMESTAMPS 3
812 void debug_print_timestamp(int counter_nr, char *message)
814 static long counter[DEBUG_NUM_TIMESTAMPS][2];
816 if (counter_nr >= DEBUG_NUM_TIMESTAMPS)
817 Error(ERR_EXIT, "debugging: increase DEBUG_NUM_TIMESTAMPS in misc.c");
819 counter[counter_nr][0] = Counter();
822 printf("%s %.2f seconds\n", message,
823 (float)(counter[counter_nr][0] - counter[counter_nr][1]) / 1000);
825 counter[counter_nr][1] = Counter();