+
+ redraw[xx][yy] = TRUE;
+ redraw_mask |= REDRAW_TILES;
+}
+
+void GetOptions(char *argv[])
+{
+ char **options_left = &argv[1];
+
+ /* initialize global program options */
+ options.display_name = NULL;
+ options.server_host = NULL;
+ options.server_port = 0;
+ options.base_directory = BASE_PATH;
+ options.level_directory = BASE_PATH "/" LEVELS_DIRECTORY;
+ options.serveronly = FALSE;
+ options.network = FALSE;
+ options.verbose = FALSE;
+
+ while (*options_left)
+ {
+ char option_str[MAX_OPTION_LEN];
+ char *option = options_left[0];
+ char *next_option = options_left[1];
+ char *option_arg = NULL;
+ int option_len = strlen(option);
+
+ if (option_len >= MAX_OPTION_LEN)
+ Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
+
+ strcpy(option_str, option); /* copy argument into buffer */
+ option = option_str;
+
+ if (strcmp(option, "--") == 0) /* stop scanning arguments */
+ break;
+
+ if (strncmp(option, "--", 2) == 0) /* treat '--' like '-' */
+ option++;
+
+ option_arg = strchr(option, '=');
+ if (option_arg == NULL) /* no '=' in option */
+ option_arg = next_option;
+ else
+ {
+ *option_arg++ = '\0'; /* cut argument from option */
+ if (*option_arg == '\0') /* no argument after '=' */
+ Error(ERR_EXIT_HELP, "option '%s' has invalid argument", option_str);
+ }
+
+ option_len = strlen(option);
+
+ if (strcmp(option, "-") == 0)
+ Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
+ else if (strncmp(option, "-help", option_len) == 0)
+ {
+ printf("Usage: %s [options] [server.name [port]]\n"
+ "Options:\n"
+ " -d, --display machine:0 X server display\n"
+ " -b, --basepath directory alternative base directory\n"
+ " -l, --levels directory alternative level directory\n"
+ " -s, --serveronly only start network server\n"
+ " -n, --network network multiplayer game\n"
+ " -v, --verbose verbose mode\n",
+ program_name);
+ exit(0);
+ }
+ else if (strncmp(option, "-display", option_len) == 0)
+ {
+ if (option_arg == NULL)
+ Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
+
+ options.display_name = option_arg;
+ if (option_arg == next_option)
+ options_left++;
+ }
+ else if (strncmp(option, "-basepath", option_len) == 0)
+ {
+ if (option_arg == NULL)
+ Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
+
+ options.base_directory = option_arg;
+ if (option_arg == next_option)
+ options_left++;
+
+ /* adjust path for level directory accordingly */
+ options.level_directory =
+ getPath2(options.base_directory, LEVELS_DIRECTORY);
+ }
+ else if (strncmp(option, "-levels", option_len) == 0)
+ {
+ if (option_arg == NULL)
+ Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
+
+ options.level_directory = option_arg;
+ if (option_arg == next_option)
+ options_left++;
+ }
+ else if (strncmp(option, "-network", option_len) == 0)
+ {
+ options.network = TRUE;
+ }
+ else if (strncmp(option, "-serveronly", option_len) == 0)
+ {
+ options.serveronly = TRUE;
+ }
+ else if (strncmp(option, "-verbose", option_len) == 0)
+ {
+ options.verbose = TRUE;
+ }
+ else if (*option == '-')
+ {
+ Error(ERR_EXIT_HELP, "unrecognized option '%s'", option_str);
+ }
+ else if (options.server_host == NULL)
+ {
+ options.server_host = *options_left;
+ }
+ else if (options.server_port == 0)
+ {
+ options.server_port = atoi(*options_left);
+ if (options.server_port < 1024)
+ Error(ERR_EXIT_HELP, "bad port number '%d'", options.server_port);
+ }
+ else
+ Error(ERR_EXIT_HELP, "too many arguments");
+
+ options_left++;
+ }
+}
+
+void Error(int mode, char *format, ...)
+{
+ char *process_name = "";
+ FILE *error = stderr;
+
+ /* display warnings only when running in verbose mode */
+ if (mode & ERR_WARN && !options.verbose)
+ return;
+
+#ifdef MSDOS
+ if ((error = openErrorFile()) == NULL)
+ {
+ printf("Cannot write to error output file!\n");
+ CloseAllAndExit(1);
+ }
+#endif
+
+ if (mode & ERR_SOUND_SERVER)
+ process_name = " sound server";
+ else if (mode & ERR_NETWORK_SERVER)
+ process_name = " network server";
+ else if (mode & ERR_NETWORK_CLIENT)
+ process_name = " network client **";
+
+ if (format)
+ {
+ va_list ap;
+
+ fprintf(error, "%s%s: ", program_name, process_name);
+
+ if (mode & ERR_WARN)
+ fprintf(error, "warning: ");
+
+ va_start(ap, format);
+ vfprintf(error, format, ap);
+ va_end(ap);
+
+ fprintf(error, "\n");
+ }
+
+ if (mode & ERR_HELP)
+ fprintf(error, "%s: Try option '--help' for more information.\n",
+ program_name);
+
+ if (mode & ERR_EXIT)
+ fprintf(error, "%s%s: aborting\n", program_name, process_name);
+
+ if (error != stderr)
+ fclose(error);
+
+ if (mode & ERR_EXIT)
+ {
+ if (mode & ERR_FROM_SERVER)
+ exit(1); /* child process: normal exit */
+ else
+ CloseAllAndExit(1); /* main process: clean up stuff */
+ }
+}
+
+void *checked_malloc(unsigned long size)
+{
+ void *ptr;
+
+ ptr = malloc(size);
+
+ if (ptr == NULL)
+ Error(ERR_EXIT, "cannot allocate %d bytes -- out of memory", size);
+
+ return ptr;
+}
+
+void *checked_calloc(unsigned long size)
+{
+ void *ptr;
+
+ ptr = calloc(1, size);
+
+ if (ptr == NULL)
+ Error(ERR_EXIT, "cannot allocate %d bytes -- out of memory", size);
+
+ return ptr;
+}
+
+#define TRANSLATE_KEYSYM_TO_KEYNAME 0
+#define TRANSLATE_KEYSYM_TO_X11KEYNAME 1
+#define TRANSLATE_X11KEYNAME_TO_KEYSYM 2
+
+void translate_keyname(KeySym *keysym, char **x11name, char **name, int mode)
+{
+ static struct
+ {
+ KeySym keysym;
+ char *x11name;
+ char *name;
+ } translate_key[] =
+ {
+ /* normal cursor keys */
+ { XK_Left, "XK_Left", "cursor left" },
+ { XK_Right, "XK_Right", "cursor right" },
+ { XK_Up, "XK_Up", "cursor up" },
+ { XK_Down, "XK_Down", "cursor down" },
+
+ /* keypad cursor keys */
+#ifdef XK_KP_Left
+ { XK_KP_Left, "XK_KP_Left", "keypad left" },
+ { XK_KP_Right, "XK_KP_Right", "keypad right" },
+ { XK_KP_Up, "XK_KP_Up", "keypad up" },
+ { XK_KP_Down, "XK_KP_Down", "keypad down" },
+#endif
+
+ /* other keypad keys */
+#ifdef XK_KP_Enter
+ { XK_KP_Enter, "XK_KP_Enter", "keypad enter" },
+ { XK_KP_Add, "XK_KP_Add", "keypad +" },
+ { XK_KP_Subtract, "XK_KP_Subtract", "keypad -" },
+ { XK_KP_Multiply, "XK_KP_Multiply", "keypad mltply" },
+ { XK_KP_Divide, "XK_KP_Divide", "keypad /" },
+ { XK_KP_Separator, "XK_KP_Separator", "keypad ," },
+#endif
+
+ /* modifier keys */
+ { XK_Shift_L, "XK_Shift_L", "left shift" },
+ { XK_Shift_R, "XK_Shift_R", "right shift" },
+ { XK_Control_L, "XK_Control_L", "left control" },
+ { XK_Control_R, "XK_Control_R", "right control" },
+ { XK_Meta_L, "XK_Meta_L", "left meta" },
+ { XK_Meta_R, "XK_Meta_R", "right meta" },
+ { XK_Alt_L, "XK_Alt_L", "left alt" },
+ { XK_Alt_R, "XK_Alt_R", "right alt" },
+ { XK_Mode_switch, "XK_Mode_switch", "mode switch" },
+ { XK_Multi_key, "XK_Multi_key", "multi key" },
+
+ /* some special keys */
+ { XK_BackSpace, "XK_BackSpace", "backspace" },
+ { XK_Delete, "XK_Delete", "delete" },
+ { XK_Insert, "XK_Insert", "insert" },
+ { XK_Tab, "XK_Tab", "tab" },
+ { XK_Home, "XK_Home", "home" },
+ { XK_End, "XK_End", "end" },
+ { XK_Page_Up, "XK_Page_Up", "page up" },
+ { XK_Page_Down, "XK_Page_Down", "page down" },
+ { XK_space, "XK_space", "space" },
+
+ /* even more special keys */
+ { XK_adiaeresis, "XK_adiaeresis", "ä" },
+ { XK_odiaeresis, "XK_odiaeresis", "ö" },
+ { XK_udiaeresis, "XK_udiaeresis", "ü" },
+ { XK_apostrophe, "XK_apostrophe", "'" },
+ { XK_plus, "XK_plus", "+" },
+ { XK_minus, "XK_minus", "-" },
+ { XK_equal, "XK_equal", "equal" },
+ { XK_comma, "XK_comma", "," },
+ { XK_period, "XK_period", "." },
+ { XK_colon, "XK_colon", ";" },
+ { XK_slash, "XK_slash", "/" },
+ { XK_numbersign, "XK_numbersign", "#" },
+ { XK_backslash, "XK_backslash", "backslash" },
+ { XK_braceleft, "XK_braceleft", "brace left" },
+ { XK_braceright, "XK_braceright", "brace right" },
+ { XK_less, "XK_less", "less" },
+ { XK_greater, "XK_greater", "greater" },
+ { XK_asciicircum, "XK_asciicircum", "circumflex" },
+ { XK_ssharp, "XK_ssharp", "sharp s" },
+
+ /* end-of-array identifier */
+ { 0, NULL, NULL }
+ };
+
+ int i;
+
+ if (mode == TRANSLATE_KEYSYM_TO_KEYNAME)
+ {
+ static char name_buffer[30];
+ KeySym key = *keysym;
+
+ if (key >= XK_A && key <= XK_Z)
+ sprintf(name_buffer, "%c", 'A' + (char)(key - XK_A));
+ else if (key >= XK_a && key <= XK_z)
+ sprintf(name_buffer, "%c", 'a' + (char)(key - XK_a));
+ else if (key >= XK_0 && key <= XK_9)
+ sprintf(name_buffer, "%c", '0' + (char)(key - XK_0));
+ else if (key >= XK_KP_0 && key <= XK_KP_9)
+ sprintf(name_buffer, "keypad %c", '0' + (char)(key - XK_KP_0));
+ else if (key >= XK_F1 && key <= XK_F24)
+ sprintf(name_buffer, "function F%d", (int)(key - XK_F1 + 1));
+ else if (key == KEY_UNDEFINDED)
+ strcpy(name_buffer, "(undefined)");
+ else
+ {
+ i = 0;
+
+ do
+ {
+ if (key == translate_key[i].keysym)
+ {
+ strcpy(name_buffer, translate_key[i].name);
+ break;
+ }
+ }
+ while (translate_key[++i].name);
+
+ if (!translate_key[i].name)
+ strcpy(name_buffer, "(unknown)");
+ }
+
+ *name = name_buffer;
+ }
+ else if (mode == TRANSLATE_KEYSYM_TO_X11KEYNAME)
+ {
+ static char name_buffer[30];
+ KeySym key = *keysym;
+
+ if (key >= XK_A && key <= XK_Z)
+ sprintf(name_buffer, "XK_%c", 'A' + (char)(key - XK_A));
+ else if (key >= XK_a && key <= XK_z)
+ sprintf(name_buffer, "XK_%c", 'a' + (char)(key - XK_a));
+ else if (key >= XK_0 && key <= XK_9)
+ sprintf(name_buffer, "XK_%c", '0' + (char)(key - XK_0));
+ else if (key >= XK_KP_0 && key <= XK_KP_9)
+ sprintf(name_buffer, "XK_KP_%c", '0' + (char)(key - XK_KP_0));
+ else if (key >= XK_F1 && key <= XK_F24)
+ sprintf(name_buffer, "XK_F%d", (int)(key - XK_F1 + 1));
+ else if (key == KEY_UNDEFINDED)
+ strcpy(name_buffer, "[undefined]");
+ else
+ {
+ i = 0;
+
+ do
+ {
+ if (key == translate_key[i].keysym)
+ {
+ strcpy(name_buffer, translate_key[i].x11name);
+ break;
+ }
+ }
+ while (translate_key[++i].x11name);
+
+ if (!translate_key[i].x11name)
+ sprintf(name_buffer, "0x%04lx", (unsigned long)key);
+ }
+
+ *x11name = name_buffer;
+ }
+ else if (mode == TRANSLATE_X11KEYNAME_TO_KEYSYM)
+ {
+ KeySym key = XK_VoidSymbol;
+ char *name_ptr = *x11name;
+
+ if (strncmp(name_ptr, "XK_", 3) == 0 && strlen(name_ptr) == 4)
+ {
+ char c = name_ptr[3];
+
+ if (c >= 'A' && c <= 'Z')
+ key = XK_A + (KeySym)(c - 'A');
+ else if (c >= 'a' && c <= 'z')
+ key = XK_a + (KeySym)(c - 'a');
+ else if (c >= '0' && c <= '9')
+ key = XK_0 + (KeySym)(c - '0');
+ }
+ else if (strncmp(name_ptr, "XK_KP_", 6) == 0 && strlen(name_ptr) == 7)
+ {
+ char c = name_ptr[6];
+
+ if (c >= '0' && c <= '9')
+ key = XK_0 + (KeySym)(c - '0');
+ }
+ else if (strncmp(name_ptr, "XK_F", 4) == 0 && strlen(name_ptr) <= 6)
+ {
+ char c1 = name_ptr[4];
+ char c2 = name_ptr[5];
+ int d = 0;
+
+ if ((c1 >= '0' && c1 <= '9') &&
+ ((c2 >= '0' && c1 <= '9') || c2 == '\0'))
+ d = atoi(&name_ptr[4]);
+
+ if (d >=1 && d <= 24)
+ key = XK_F1 + (KeySym)(d - 1);
+ }
+ else if (strncmp(name_ptr, "XK_", 3) == 0)
+ {
+ i = 0;
+
+ do
+ {
+ if (strcmp(name_ptr, translate_key[i].x11name) == 0)
+ {
+ key = translate_key[i].keysym;
+ break;
+ }
+ }
+ while (translate_key[++i].x11name);
+ }
+ else if (strncmp(name_ptr, "0x", 2) == 0)
+ {
+ unsigned long value = 0;
+
+ name_ptr += 2;
+
+ while (name_ptr)
+ {
+ char c = *name_ptr++;
+ int d = -1;
+
+ if (c >= '0' && c <= '9')
+ d = (int)(c - '0');
+ else if (c >= 'a' && c <= 'f')
+ d = (int)(c - 'a' + 10);
+ else if (c >= 'A' && c <= 'F')
+ d = (int)(c - 'A' + 10);
+
+ if (d == -1)
+ {
+ value = -1;
+ break;
+ }
+
+ value = value * 16 + d;
+ }
+
+ if (value != -1)
+ key = (KeySym)value;
+ }
+
+ *keysym = key;
+ }
+}
+
+char *getKeyNameFromKeySym(KeySym keysym)
+{
+ char *name;
+
+ translate_keyname(&keysym, NULL, &name, TRANSLATE_KEYSYM_TO_KEYNAME);
+ return name;
+}
+
+char *getX11KeyNameFromKeySym(KeySym keysym)
+{
+ char *x11name;
+
+ translate_keyname(&keysym, &x11name, NULL, TRANSLATE_KEYSYM_TO_X11KEYNAME);
+ return x11name;
+}
+
+KeySym getKeySymFromX11KeyName(char *x11name)
+{
+ KeySym keysym;
+
+ translate_keyname(&keysym, &x11name, NULL, TRANSLATE_X11KEYNAME_TO_KEYSYM);
+ return keysym;
+}
+
+#define TRANSLATE_JOYSYMBOL_TO_JOYNAME 0
+#define TRANSLATE_JOYNAME_TO_JOYSYMBOL 1
+
+void translate_joyname(int *joysymbol, char **name, int mode)
+{
+ static struct
+ {
+ int joysymbol;
+ char *name;
+ } translate_joy[] =
+ {
+ { JOY_LEFT, "joystick_left" },
+ { JOY_RIGHT, "joystick_right" },
+ { JOY_UP, "joystick_up" },
+ { JOY_DOWN, "joystick_down" },
+ { JOY_BUTTON_1, "joystick_button_1" },
+ { JOY_BUTTON_2, "joystick_button_2" },
+ };
+
+ int i;
+
+ if (mode == TRANSLATE_JOYSYMBOL_TO_JOYNAME)
+ {
+ *name = "[undefined]";
+
+ for (i=0; i<6; i++)
+ {
+ if (*joysymbol == translate_joy[i].joysymbol)
+ {
+ *name = translate_joy[i].name;
+ break;
+ }
+ }
+ }
+ else if (mode == TRANSLATE_JOYNAME_TO_JOYSYMBOL)
+ {
+ *joysymbol = 0;
+
+ for (i=0; i<6; i++)
+ {
+ if (strcmp(*name, translate_joy[i].name) == 0)
+ {
+ *joysymbol = translate_joy[i].joysymbol;
+ break;
+ }
+ }