/* io.c: terminal I/O code, uses the curses package Copyright (c) 1989 James E. Wilson, Robert A. Koeneke This software may be copied and distributed for educational, research, and not for profit purposes provided that this copyright and statement are included in all such copies. */ #ifdef MSDOS #include #include #endif #if defined(NLS) && defined(lint) /* for AIX, don't let curses include the NL stuff */ #undef NLS #endif #if !defined(GEMDOS) #ifdef MAC #include #else #include #endif #else #define ATARIST_MWC #include "curses.h" long wgetch(); #include char *getenv(); #endif #include "constant.h" #include "config.h" #include "types.h" #include "externs.h" #include #if defined(SYS_V) && defined(lint) /* for AIX, prevent hundreds of unnecessary lint errors, must define before signal.h is included */ #define _h_IEEETRAP typedef struct { int stuff; } fpvmach; #endif #if defined(MSDOS) #if defined(ANSI) #include "ms_ansi.h" #endif #else /* not msdos */ #if !defined(ATARIST_MWC) && !defined(MAC) #ifndef VMS #include #endif #include #endif #endif #ifndef USG /* only needed for Berkeley UNIX */ #include #include #include #endif #if defined(USG) #ifndef ATARIST_MWC #include #else #include "string.h" #endif #if !defined(MAC) && !defined(MSDOS) && !defined(ATARIST_MWC) #include #endif #else #ifndef VMS #include #if defined(atarist) && defined(__GNUC__) /* doesn't have sys/wait.h */ #else #include #endif #endif #endif #if defined(SYS_V) && defined(lint) struct screen { int dumb; }; #endif /* Fooling lint. Unfortunately, c defines all the TIO. -CJS- constants to be long, and lint expects them to be int. Also, ioctl is sometimes called with just two arguments. The following definition keeps lint happy. It may need to be reset for different systems. */ #ifndef MAC #ifdef lint #ifdef Pyramid /* Pyramid makes constants greater than 65535 into long! Gakk! -CJS- */ /*ARGSUSED*/ /*VARARGS2*/ static Ioctl(i, l, p) long l; char *p; { return 0; } #else /*ARGSUSED*/ /*VARARGS2*/ static Ioctl(i, l, p) char *p; { return 0; } #endif #define ioctl Ioctl #endif #if !defined(USG) && defined(lint) /* This use_value hack is for curses macros which return a value, but don't shut up about it when you try to tell them (void). */ /* only needed for Berkeley UNIX */ int Use_value; #define use_value Use_value += #else #define use_value #endif #if defined(SYS_V) && defined(lint) /* This use_value2 hack is for curses macros which use a conditional expression, and which say null effect even if you cast to (void). */ /* only needed for SYS V */ int Use_value2; #define use_value2 Use_value2 += #else #define use_value2 #endif #endif #ifndef MAC char *getenv(); #endif #ifdef USG void exit(); #ifdef __TURBOC__ void sleep(); #else unsigned sleep(); #endif #endif #ifdef ultrix void exit(); void sleep(); #endif #if !defined(MAC) && !defined(MSDOS) && !defined(ATARIST_MWC) #if defined(USG) static struct termios save_termio; #else #ifndef VMS static struct ltchars save_special_chars; static struct sgttyb save_ttyb; static struct tchars save_tchars; static int save_local_chars; #endif #endif #endif #ifndef MAC static int curses_on = FALSE; static WINDOW *savescr; /* Spare window for saving the screen. -CJS- */ #endif #ifdef MAC /* Attributes of normal and hilighted characters */ #define ATTR_NORMAL attrNormal #define ATTR_HILITED attrReversed #endif #if !defined(MAC) #ifdef SIGTSTP /* suspend() -CJS- Handle the stop and start signals. This ensures that the log is up to date, and that the terminal is fully reset and restored. */ #if defined(AMIGA) void * #else int #endif suspend() { #ifdef USG /* for USG systems with BSDisms that have SIGTSTP defined, but don't actually implement it */ #else struct sgttyb tbuf; struct ltchars lcbuf; struct tchars cbuf; int lbuf; long time(); py.misc.male |= 2; (void) ioctl(0, TIOCGETP, (char *)&tbuf); (void) ioctl(0, TIOCGETC, (char *)&cbuf); (void) ioctl(0, TIOCGLTC, (char *)&lcbuf); (void) ioctl(0, TIOCLGET, (char *)&lbuf); restore_term(); (void) kill(0, SIGSTOP); curses_on = TRUE; (void) ioctl(0, TIOCSETP, (char *)&tbuf); (void) ioctl(0, TIOCSETC, (char *)&cbuf); (void) ioctl(0, TIOCSLTC, (char *)&lcbuf); (void) ioctl(0, TIOCLSET, (char *)&lbuf); (void) wrefresh(curscr); cbreak(); noecho(); py.misc.male &= ~2; #endif #if defined(AMIGA) return(void *)0; #else return 0; #endif } #endif #endif /* initializes curses routines */ void init_curses() #ifdef MAC { /* Primary initialization is done in mac.c since game is restartable */ /* Only need to clear the screen here */ Rect scrn; scrn.left = scrn.top = 0; scrn.right = SCRN_COLS; scrn.bottom = SCRN_ROWS; EraseScreen(&scrn); UpdateScreen(); } #else { int i, y, x; #if !defined(USG) (void) ioctl(0, TIOCGLTC, (char *)&save_special_chars); (void) ioctl(0, TIOCGETP, (char *)&save_ttyb); (void) ioctl(0, TIOCGETC, (char *)&save_tchars); (void) ioctl(0, TIOCLGET, (char *)&save_local_chars); #else #if !defined(VMS) && !defined(MSDOS) && !defined(ATARIST_MWC) (void) ioctl(0, TIOCGETA, (char *)&save_termio); #endif #endif #ifdef ATARIST_MWC WINDOW *newwin(); initscr(); if (ERR) #else #if defined(USG) && !defined(PC_CURSES) /* PC curses returns ERR */ if (initscr() == NULL) #else if (initscr() == ERR) #endif #endif { (void) printf("Error allocating screen in curses package.\n"); exit(1); } if (LINES < 24 || COLS < 80) /* Check we have enough screen. -CJS- */ { (void) printf("Screen too small for moria.\n"); exit (1); } #ifdef SIGTSTP (void) signal (SIGTSTP, suspend); #endif if ((savescr = newwin (0, 0, 0, 0)) == NULL) { (void) printf ("Out of memory in starting up curses.\n"); exit_game(); } (void) clear(); (void) refresh(); moriaterm (); /* check tab settings, exit with error if they are not 8 spaces apart */ #ifdef ATARIST_MWC move(0, 0); #else (void) move(0, 0); #endif for (i = 1; i < 10; i++) { #ifdef ATARIST_MWC addch('\t'); #else (void) addch('\t'); #endif getyx(stdscr, y, x); if (y != 0 || x != i*8) break; } if (i != 10) { msg_print("Tabs must be set 8 spaces apart."); exit_game(); } } #endif /* Set up the terminal into a suitable state for moria. -CJS- */ void moriaterm() #if defined(MAC) /* Nothing to do on Mac */ { } #else { #if !defined(MSDOS) && !defined(ATARIST_MWC) #if defined(USG) struct termios tbuf; #else struct ltchars lbuf; struct tchars buf; #endif #endif curses_on = TRUE; #if !defined(BSD4_3) use_value crmode(); #else use_value cbreak(); #endif use_value noecho(); /* can not use nonl(), because some curses do not handle it correctly */ #ifdef MSDOS msdos_raw(); #else #if !defined(ATARIST_MWC) #if defined(USG) (void) ioctl(0, TIOCGETA, (char *)&tbuf); /* disable all of the normal special control characters */ tbuf.c_cc[VINTR] = (char)3; /* control-C */ tbuf.c_cc[VQUIT] = (char)-1; tbuf.c_cc[VERASE] = (char)-1; tbuf.c_cc[VKILL] = (char)-1; tbuf.c_cc[VEOF] = (char)-1; /* don't know what these are for */ tbuf.c_cc[VEOL] = (char)-1; tbuf.c_cc[VEOL2] = (char)-1; /* stuff needed when !icanon, i.e. cbreak/raw mode */ tbuf.c_cc[VMIN] = 1; /* Input should wait for at least 1 char */ tbuf.c_cc[VTIME] = 0; /* no matter how long that takes. */ (void) ioctl(0, TIOCSETA, (char *)&tbuf); #else #ifndef VMS /* disable all of the special characters except the suspend char, interrupt char, and the control flow start/stop characters */ (void) ioctl(0, TIOCGLTC, (char *)&lbuf); lbuf.t_suspc = (char)26; /* control-Z */ lbuf.t_dsuspc = (char)-1; lbuf.t_rprntc = (char)-1; lbuf.t_flushc = (char)-1; lbuf.t_werasc = (char)-1; lbuf.t_lnextc = (char)-1; (void) ioctl(0, TIOCSLTC, (char *)&lbuf); (void) ioctl (0, TIOCGETC, (char *)&buf); buf.t_intrc = (char)3; /* control-C */ buf.t_quitc = (char)-1; buf.t_startc = (char)17; /* control-Q */ buf.t_stopc = (char)19; /* control-S */ buf.t_eofc = (char)-1; buf.t_brkc = (char)-1; (void) ioctl(0, TIOCSETC, (char *)&buf); #endif #endif #endif #endif } #endif /* Dump IO to buffer -RAK- */ void put_buffer(out_str, row, col) char *out_str; int row, col; #ifdef MAC { /* The screen manager handles writes past the edge ok */ DSetScreenCursor(col, row); DWriteScreenStringAttr(out_str, ATTR_NORMAL); } #else { vtype tmp_str; /* truncate the string, to make sure that it won't go past right edge of screen */ if (col > 79) col = 79; (void) strncpy (tmp_str, out_str, 79 - col); tmp_str [79 - col] = '\0'; #ifndef ATARIST_MWC if (mvaddstr(row, col, tmp_str) == ERR) #else mvaddstr(row, col, out_str); if (ERR) #endif { abort(); /* clear msg_flag to avoid problems with unflushed messages */ msg_flag = 0; (void) sprintf(tmp_str, "error in put_buffer, row = %d col = %d\n", row, col); prt(tmp_str, 0, 0); bell(); /* wait so user can see error */ (void) sleep(2); } } #endif /* Dump the IO buffer to terminal -RAK- */ void put_qio() { screen_change = TRUE; /* Let inven_command know something has changed. */ (void) refresh(); } /* Put the terminal in the original mode. -CJS- */ void restore_term() #ifdef MAC /* Nothing to do on Mac */ { } #else { if (!curses_on) return; put_qio(); /* Dump any remaining buffer */ #ifdef MSDOS (void) sleep(2); /* And let it be read. */ #endif #ifdef VMS pause_line(15); #endif /* this moves curses to bottom right corner */ mvcur(curscr->_cury, curscr->_curx, LINES-1, 0); #ifdef VMS pause_line(15); #endif endwin(); /* exit curses */ (void) fflush (stdout); #ifdef MSDOS msdos_noraw(); (void) clear(); #endif /* restore the saved values of the special chars */ #if defined(USG) #if !defined(MSDOS) && !defined(ATARIST_MWC) (void) ioctl(0, TIOCSETA, (char *)&save_termio); #endif #else #ifndef VMS (void) ioctl(0, TIOCSLTC, (char *)&save_special_chars); (void) ioctl(0, TIOCSETP, (char *)&save_ttyb); (void) ioctl(0, TIOCSETC, (char *)&save_tchars); (void) ioctl(0, TIOCLSET, (char *)&save_local_chars); #endif #endif curses_on = FALSE; } #endif void shell_out() #ifdef MAC { alert_error("This command is not implemented on the Macintosh."); } #else { #if defined(USG) #if !defined(MSDOS) && !defined(ATARIST_MWC) struct termios tbuf; #endif #else struct sgttyb tbuf; struct ltchars lcbuf; struct tchars cbuf; int lbuf; #endif #ifdef MSDOS char *comspec, key; #else #ifdef ATARIST_MWC char comstr[80]; char *str; extern char **environ; #else int val; char *str; #endif #endif save_screen(); /* clear screen and print 'exit' message */ clear_screen(); #ifndef ATARIST_MWC put_buffer("[Entering shell, type 'exit' to resume your game.]\n",0,0); #else put_buffer("[Escaping to shell]\n",0,0); #endif put_qio(); #if defined(USG) #if !defined(MSDOS) && !defined(ATARIST_MWC) (void) ioctl(0, TIOCGETA, (char *)&tbuf); #endif #else #ifndef VMS (void) ioctl(0, TIOCGETP, (char *)&tbuf); (void) ioctl(0, TIOCGETC, (char *)&cbuf); (void) ioctl(0, TIOCGLTC, (char *)&lcbuf); (void) ioctl(0, TIOCLGET, (char *)&lbuf); #endif #endif /* would call nl() here if could use nl()/nonl(), see moriaterm() */ #ifndef BSD4_3 use_value nocrmode(); #else use_value nocbreak(); #endif #ifdef MSDOS use_value msdos_noraw(); #endif use_value echo(); ignore_signals(); #ifdef MSDOS /*{*/ if ((comspec = getenv("COMSPEC")) == NULL || spawnl(P_WAIT, comspec, comspec, (char *) NULL) < 0) { clear_screen(); /* BOSS key if shell failed */ put_buffer("M:\\> ", 0, 0); do { key = inkey(); } while (key != '!'); } #else /* MSDOS }{*/ #ifndef ATARIST_MWC val = fork(); if (val == 0) { #endif default_signals(); #if defined(USG) #if !defined(MSDOS) && !defined(ATARIST_MWC) (void) ioctl(0, TIOCSETA, (char *)&save_termio); #endif #else #ifndef VMS (void) ioctl(0, TIOCSLTC, (char *)&save_special_chars); (void) ioctl(0, TIOCSETP, (char *)&save_ttyb); (void) ioctl(0, TIOCSETC, (char *)&save_tchars); (void) ioctl(0, TIOCLSET, (char *)&save_local_chars); #endif #endif #ifndef MSDOS /* close scoreboard descriptor */ /* it is not open on MSDOS machines */ #if 0 /* this file is not open now, see init_file() in files.c */ (void) close(highscore_fd); #endif #endif if (str = getenv("SHELL")) #ifndef ATARIST_MWC (void) execl(str, str, (char *) 0); #else system(str); #endif else #ifndef ATARIST_MWC (void) execl("/bin/sh", "sh", (char *) 0); #endif msg_print("Cannot execute shell."); #ifndef ATARIST_MWC exit(1); } if (val == -1) { msg_print("Fork failed. Try again."); return; } #if defined(USG) || defined(AMIGA) (void) wait((int *) 0); #else (void) wait((union wait *) 0); #endif #endif /* ATARIST_MWC */ #endif /* MSDOS }*/ restore_signals(); /* restore the cave to the screen */ restore_screen(); #ifndef BSD4_3 use_value crmode(); #else use_value cbreak(); #endif use_value noecho(); /* would call nonl() here if could use nl()/nonl(), see moriaterm() */ #ifdef MSDOS msdos_raw(); #endif /* disable all of the local special characters except the suspend char */ /* have to disable ^Y for tunneling */ #if defined(USG) #if !defined(MSDOS) && !defined(ATARIST_MWC) (void) ioctl(0, TIOCSETA, (char *)&tbuf); #endif #else #ifndef VMS (void) ioctl(0, TIOCSLTC, (char *)&lcbuf); (void) ioctl(0, TIOCSETP, (char *)&tbuf); (void) ioctl(0, TIOCSETC, (char *)&cbuf); (void) ioctl(0, TIOCLSET, (char *)&lbuf); #endif #endif (void) wrefresh(curscr); } #endif /* Returns a single character input from the terminal. This silently -CJS- consumes ^R to redraw the screen and reset the terminal, so that this operation can always be performed at any input prompt. inkey() never returns ^R. */ char inkey() #ifdef MAC /* The Mac does not need ^R, so it just consumes it */ /* This routine does nothing special with direction keys */ /* Just returns their keypad ascii value (e.g. '0'-'9') */ /* Compare with inkeydir() below */ { char ch; int dir; int shift_flag, ctrl_flag; put_qio(); command_count = 0; do { macgetkey(&ch, FALSE); } while (ch == CTRL('R')); dir = extractdir(ch, &shift_flag, &ctrl_flag); if (dir != -1) ch = '0' + dir; return(ch); } #else { int i; put_qio(); /* Dump IO buffer */ command_count = 0; /* Just to be safe -CJS- */ while (TRUE) { #ifdef MSDOS i = msdos_getch(); #else i = getch(); #endif /* some machines may not sign extend. */ if (i == EOF) { eof_flag++; /* avoid infinite loops while trying to call inkey() for a -more- prompt. */ msg_flag = FALSE; (void) refresh (); if (!character_generated || character_saved) exit_game(); disturb(1, 0); if (eof_flag > 100) { /* just in case, to make sure that the process eventually dies */ panic_save = 1; (void) strcpy(died_from, "(end of input: panic saved)"); if (!save_char()) { (void) strcpy(died_from, "panic: unexpected eof"); death = TRUE; } exit_game(); } return ESCAPE; } if (i != CTRL('R')) return (char)i; (void) wrefresh (curscr); moriaterm(); } } #endif #ifdef MAC char inkeydir() /* The Mac does not need ^R, so it just consumes it */ /* This routine translates the direction keys in rogue-like mode */ /* Compare with inkeydir() below */ { char ch; int dir; int shift_flag, ctrl_flag; static char tab[9] = { 'b', 'j', 'n', 'h', '.', 'l', 'y', 'k', 'u' }; static char shifttab[9] = { 'B', 'J', 'N', 'H', '.', 'L', 'Y', 'K', 'U' }; static char ctrltab[9] = { CTRL('B'), CTRL('J'), CTRL('N'), CTRL('H'), '.', CTRL('L'), CTRL('Y'), CTRL('K'), CTRL('U') }; put_qio(); command_count = 0; do { macgetkey(&ch, FALSE); } while (ch == CTRL('R')); dir = extractdir(ch, &shift_flag, &ctrl_flag); if (dir != -1) { if (!rogue_like_commands) { ch = '0' + dir; } else { if (ctrl_flag) ch = ctrltab[dir - 1]; else if (shift_flag) ch = shifttab[dir - 1]; else ch = tab[dir - 1]; } } return(ch); } #endif /* Flush the buffer -RAK- */ void flush() #ifdef MAC { /* Removed put_qio() call. Reduces flashing. Doesn't seem to hurt. */ FlushScreenKeys(); } #else { #ifdef MSDOS while (kbhit()) (void) getch(); #else /* the code originally used ioctls, TIOCDRAIN, or TIOCGETP/TIOCSETP, or TCGETA/TCSETAF, however this occasionally resulted in loss of output, the happened especially often when rlogin from BSD to SYS_V machine, using check_input makes the desired effect a bit clearer */ /* wierd things happen on EOF, don't try to flush input in that case */ if (!eof_flag) #ifndef AMIGA while (check_input(0)); #else while (check_input(50)); #endif #endif /* used to call put_qio() here to drain output, but it is not necessary */ } #endif /* Clears given line of text -RAK- */ void erase_line(row, col) int row; int col; #ifdef MAC { Rect line; if (row == MSG_LINE && msg_flag) msg_print(NULL); line.left = col; line.top = row; line.right = SCRN_COLS; line.bottom = row + 1; DEraseScreen(&line); } #else { if (row == MSG_LINE && msg_flag) msg_print(NULL); (void) move(row, col); clrtoeol(); } #endif /* Clears screen */ void clear_screen() #ifdef MAC { Rect area; if (msg_flag) msg_print(NULL); area.left = area.top = 0; area.right = SCRN_COLS; area.bottom = SCRN_ROWS; DEraseScreen(&area); } #else { if (msg_flag) msg_print(NULL); (void) clear(); } #endif void clear_from (row) int row; #ifdef MAC { Rect area; area.left = 0; area.top = row; area.right = SCRN_COLS; area.bottom = SCRN_ROWS; DEraseScreen(&area); } #else { (void) move(row, 0); clrtobot(); } #endif /* Outputs a char to a given interpolated y, x position -RAK- */ /* sign bit of a character used to indicate standout mode. -CJS */ void print(ch, row, col) char ch; int row; int col; { vtype tmp_str; row -= panel_row_prt;/* Real co-ords convert to screen positions */ col -= panel_col_prt; if (row<0 || row>24 || col<0 || col>80) return; if (mvaddch (row, col, ch) == ERR) { abort(); /* clear msg_flag to avoid problems with unflushed messages */ msg_flag = 0; (void) sprintf(tmp_str, "error in print, row = %d col = %d\n", row, col); prt(tmp_str, 0, 0); bell (); /* wait so user can see error */ (void) sleep(2); } } /* Moves the cursor to a given interpolated y, x position -RAK- */ void move_cursor_relative(row, col) int row; int col; #ifdef MAC { row -= panel_row_prt;/* Real co-ords convert to screen positions */ col -= panel_col_prt; DSetScreenCursor(col, row); } #else { vtype tmp_str; row -= panel_row_prt;/* Real co-ords convert to screen positions */ col -= panel_col_prt; if (move (row, col) == ERR) { abort(); /* clear msg_flag to avoid problems with unflushed messages */ msg_flag = 0; (void) sprintf(tmp_str, "error in move_cursor_relative, row = %d col = %d\n", row, col); prt(tmp_str, 0, 0); bell(); /* wait so user can see error */ (void) sleep(2); } } #endif /* Print a message so as not to interrupt a counted command. -CJS- */ void count_msg_print(p) char *p; { int i; i = command_count; msg_print(p); command_count = i; } /* Outputs a line to a given y, x position -RAK- */ void prt(str_buff, row, col) char *str_buff; int row; int col; #ifdef MAC { Rect line; if (row == MSG_LINE && msg_flag) msg_print(NULL); line.left = col; line.top = row; line.right = SCRN_COLS; line.bottom = row + 1; DEraseScreen(&line); put_buffer(str_buff, row, col); } #else { if (row == MSG_LINE && msg_flag) msg_print(NULL); (void) move(row, col); clrtoeol(); put_buffer(str_buff, row, col); } #endif /* move cursor to a given y, x position */ void move_cursor(row, col) int row, col; #ifdef MAC { DSetScreenCursor(col, row); } #else { (void) move (row, col); } #endif /* Outputs message to top line of screen */ /* These messages are kept for later reference. */ void msg_print(str_buff) char *str_buff; { char in_char; static len=0; if (msg_flag) { if (str_buff && (len+strlen(str_buff))>72) { /* ensure that the complete -more- message is visible. */ if (len > 73) len = 73; put_buffer(" -more-", MSG_LINE, len); /* let sigint handler know that we are waiting for a space */ wait_for_more = 1; do { in_char = inkey(); } while ((in_char != ' ') && (in_char != ESCAPE) && (in_char != '\n') && (in_char != '\r')); len = 0; wait_for_more = 0; (void) move(MSG_LINE, 0); clrtoeol(); /* Make the null string a special case. -CJS- */ if (str_buff) { put_buffer(str_buff, MSG_LINE, 0); command_count = 0; last_msg++; if (last_msg >= MAX_SAVE_MSG) last_msg = 0; (void) strncpy(old_msg[last_msg], str_buff, VTYPESIZ); old_msg[last_msg][VTYPESIZ - 1] = '\0'; len = strlen(str_buff)+1; msg_flag = TRUE; } else { len = 0; msg_flag = FALSE; } } else { if (!str_buff) { if (len > 73) len = 73; put_buffer(" -more-", MSG_LINE, len); /* let sigint handler know that we are waiting for a space */ wait_for_more = 1; do { in_char = inkey(); } while ((in_char != ' ') && (in_char != ESCAPE) && (in_char != '\n') && (in_char != '\r')); wait_for_more = 0; len = 0; (void) move(MSG_LINE, 0); clrtoeol(); msg_flag = FALSE; } else { put_buffer(str_buff, MSG_LINE, len); len+=strlen(str_buff)+1; command_count = 0; last_msg++; if (last_msg >= MAX_SAVE_MSG) last_msg = 0; (void) strncpy(old_msg[last_msg], str_buff, VTYPESIZ); old_msg[last_msg][VTYPESIZ - 1] = '\0'; msg_flag = TRUE; } } } else { (void) move(MSG_LINE, 0); clrtoeol(); if (str_buff) { put_buffer(str_buff, MSG_LINE, 0); command_count = 0; len=strlen(str_buff)+1; last_msg++; if (last_msg >= MAX_SAVE_MSG) last_msg = 0; (void) strncpy(old_msg[last_msg], str_buff, VTYPESIZ); old_msg[last_msg][VTYPESIZ - 1] = '\0'; msg_flag = TRUE; } else { msg_flag = FALSE; len = 0; } } } /* Used to verify a choice - user gets the chance to abort choice. -CJS- */ int get_check(prompt) char *prompt; { int res; int y, x; prt(prompt, 0, 0); #ifdef MAC GetScreenCursor(&x, &y); #else getyx(stdscr, y, x); #if defined(lint) /* prevent message 'warning: y is unused' */ x = y; #endif #ifdef LINT_ARGS /* prevent message about y never used for MSDOS systems */ res = y; #endif #endif if (x > 73) #ifdef ATARIST_MWC move(0, 73); #else (void) move(0, 73); #endif #ifdef MAC DWriteScreenStringAttr(" [y/n]", ATTR_NORMAL); #else (void) addstr(" [y/n]"); #endif do { res = inkey(); } while(res == ' '); erase_line(0, 0); if (res == 'Y' || res == 'y') return TRUE; else return FALSE; } /* Prompts (optional) and returns ord value of input char */ /* Function returns false if is input */ int get_com(prompt, command) char *prompt; char *command; { int res; if (prompt) prt(prompt, 0, 0); *command = inkey(); if (*command == 0 || *command == ESCAPE) res = FALSE; else res = TRUE; erase_line(MSG_LINE, 0); return(res); } #ifdef MAC /* Same as get_com(), but translates direction keys from keypad */ int get_comdir(prompt, command) char *prompt; char *command; { int res; if (prompt) prt(prompt, 0, 0); *command = inkeydir(); if (*command == 0 || *command == ESCAPE) res = FALSE; else res = TRUE; erase_line(MSG_LINE, 0); return(res); } #endif /* Gets a string terminated by */ /* Function returns false if is input */ int get_string(in_str, row, column, slen) char *in_str; int row, column, slen; { register int start_col, end_col, i; char *p; int flag, aborted; aborted = FALSE; flag = FALSE; (void) move(row, column); for (i = slen; i > 0; i--) (void) addch(' '); (void) move(row, column); start_col = column; end_col = column + slen - 1; if (end_col > 79) { slen = 80 - column; end_col = 79; } p = in_str; do { i = inkey(); switch(i) { case ESCAPE: aborted = TRUE; break; case CTRL('J'): case CTRL('M'): flag = TRUE; break; case DELETE: case CTRL('H'): if (column > start_col) { column--; put_buffer(" ", row, column); move_cursor(row, column); *--p = '\0'; } break; default: if (!isprint(i) || column > end_col) bell(); else { #ifdef MAC DSetScreenCursor(column, row); DWriteScreenCharAttr((char) i, ATTR_NORMAL); #else use_value2 mvaddch(row, column, (char)i); #endif *p++ = i; column++; } break; } } while ((!flag) && (!aborted)); if (aborted) return(FALSE); /* Remove trailing blanks */ while (p > in_str && p[-1] == ' ') p--; *p = '\0'; return(TRUE); } /* Pauses for user response before returning -RAK- */ void pause_line(prt_line) int prt_line; { prt("[Press any key to continue.]", prt_line, 23); (void) inkey(); erase_line(prt_line, 0); } /* Pauses for user response before returning -RAK- */ /* NOTE: Delay is for players trying to roll up "perfect" */ /* characters. Make them wait a bit. */ void pause_exit(prt_line, delay) int prt_line; int delay; { char dummy; prt("[Press any key to continue, or Q to exit.]", prt_line, 10); dummy = inkey(); if (dummy == 'Q') { erase_line(prt_line, 0); #ifndef MSDOS /* PCs are slow enough as is -dgk */ if (delay > 0) (void) sleep((unsigned)delay); #else /* prevent message about delay unused */ dummy = delay; #endif #ifdef MAC enablefilemenu(FALSE); exit_game(); enablefilemenu(TRUE); #else exit_game(); #endif } erase_line(prt_line, 0); } #ifdef MAC void save_screen() { mac_save_screen(); } void restore_screen() { mac_restore_screen(); } #else void save_screen() { overwrite(stdscr, savescr); } void restore_screen() { overwrite(savescr, stdscr); touchwin(stdscr); } #endif void bell() { put_qio(); #ifdef MAC mac_beep(); #else (void) write(1, "\007", 1); #endif } /* definitions used by screen_map() */ /* index into border character array */ #define TL 0 /* top left */ #define TR 1 #define BL 2 #define BR 3 #define HE 4 /* horizontal edge */ #define VE 5 /* character set to use */ #ifdef MSDOS # ifdef ANSI # define CH(x) (ansi ? screen_border[0][x] : screen_border[1][x]) # else # define CH(x) (screen_border[1][x]) # endif #else # define CH(x) (screen_border[0][x]) #endif /* Display highest priority object in the RATIO by RATIO area */ #define RATIO 3 void screen_map() { register int i, j; static int8u screen_border[2][6] = { {'+', '+', '+', '+', '-', '|'}, /* normal chars */ {201, 187, 200, 188, 205, 186} /* graphics chars */ }; int8u map[MAX_WIDTH / RATIO + 1]; int8u tmp; int priority[256]; int row, orow, col, myrow, mycol = 0; #ifndef MAC char prntscrnbuf[80]; #endif for (i = 0; i < 256; i++) priority[i] = 0; priority['<'] = 5; priority['>'] = 5; priority['@'] = 10; #ifdef MSDOS priority[wallsym] = -5; priority[floorsym] = -10; #else priority['#'] = -5; priority['.'] = -10; #endif priority['\''] = -3; priority[' '] = -15; save_screen(); clear_screen(); #ifdef MAC DSetScreenCursor(0, 0); DWriteScreenCharAttr(CH(TL), ATTR_NORMAL); for (i = 0; i < MAX_WIDTH / RATIO; i++) DWriteScreenCharAttr(CH(HE), ATTR_NORMAL); DWriteScreenCharAttr(CH(TR), ATTR_NORMAL); #else use_value2 mvaddch(0, 0, CH(TL)); for (i = 0; i < MAX_WIDTH / RATIO; i++) (void) addch(CH(HE)); (void) addch(CH(TR)); #endif orow = -1; map[MAX_WIDTH / RATIO] = '\0'; for (i = 0; i < MAX_HEIGHT; i++) { row = i / RATIO; if (row != orow) { if (orow >= 0) { #ifdef MAC DSetScreenCursor(0, orow+1); DWriteScreenCharAttr(CH(VE), ATTR_NORMAL); DWriteScreenString(map); DWriteScreenCharAttr(CH(VE), ATTR_NORMAL); #else /* can not use mvprintw() on ibmpc, because PC-Curses is horribly written, and mvprintw() causes the fp emulation library to be linked with PC-Moria, makes the program 10K bigger */ (void) sprintf(prntscrnbuf,"%c%s%c",CH(VE), map, CH(VE)); use_value2 mvaddstr(orow+1, 0, prntscrnbuf); #endif } for (j = 0; j < MAX_WIDTH / RATIO; j++) map[j] = ' '; orow = row; } for (j = 0; j < MAX_WIDTH; j++) { col = j / RATIO; tmp = loc_symbol(i, j); if (priority[map[col]] < priority[tmp]) map[col] = tmp; if (map[col] == '@') { mycol = col + 1; /* account for border */ myrow = row + 1; } } } if (orow >= 0) { #ifdef MAC DSetScreenCursor(0, orow+1); DWriteScreenCharAttr(CH(VE), ATTR_NORMAL); DWriteScreenString(map); DWriteScreenCharAttr(CH(VE), ATTR_NORMAL); #else (void) sprintf(prntscrnbuf,"%c%s%c",CH(VE), map, CH(VE)); use_value2 mvaddstr(orow+1, 0, prntscrnbuf); #endif } #ifdef MAC DSetScreenCursor(0, orow + 2); DWriteScreenCharAttr(CH(BL), ATTR_NORMAL); for (i = 0; i < MAX_WIDTH / RATIO; i++) DWriteScreenCharAttr(CH(HE), ATTR_NORMAL); DWriteScreenCharAttr(CH(BR), ATTR_NORMAL); #else use_value2 mvaddch(orow + 2, 0, CH(BL)); for (i = 0; i < MAX_WIDTH / RATIO; i++) (void) addch(CH(HE)); (void) addch(CH(BR)); #endif #ifdef MAC DSetScreenCursor(23, 23); DWriteScreenStringAttr("Hit any key to continue", ATTR_NORMAL); if (mycol > 0) DSetScreenCursor(mycol, myrow); #else use_value2 mvaddstr(23, 23, "Hit any key to continue"); if (mycol > 0) (void) move(myrow, mycol); #endif (void) inkey(); restore_screen(); } #ifdef NEVER #define NOCHANGE -1 overwrite(win1, win2) WINDOW *win1, *win2; { int col, line, last_line, last_col; short *firstchar, *lastchar; struct lnel *w1ptr, *w2ptr, attrs; #ifdef TRACE if (_tracing) _tracef("overwrite(%o, %o) called", win1, win2); #endif last_col = min(win1->_maxx, win2->_maxx); last_line = min(win1->_maxy, win2->_maxy); attrs = win2->_attrs; firstchar = win2->_firstchar; for(line = 0; line <= last_line; line++) { short fc, lc; w1ptr = win1->LnArry[line]; w2ptr = win2->LnArry[line]; fc = _NOCHANGE; for(col = 0; col <= last_col; col++) { if ((*w1ptr & A_CHARTEXT) != (*w2ptr & A_CHARTEXT)) { *w2ptr = (*w1ptr & A_CHARTEXT) | attrs; if (fc == _NOCHANGE) fc = col; lc = col; } w1ptr++; w2ptr++; } if (*firstchar == _NOCHANGE) { *firstchar = fc; *lastchar = lc; } else if (fc != _NOCHANGE) { if (fc < *firstchar) *firstchar = fc; if (lc > *lastchar) *lastchar = lc; } firstchar++; lastchar++; } } #endif