1 /*        $NetBSD: message.c,v 1.16 2023/08/01 07:55:57 mrg Exp $     */
2 
3 /*
4  * Copyright (c) 1988, 1993
5  *        The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Timothy C. Stoehr.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 
35 #include <sys/cdefs.h>
36 #ifndef lint
37 #if 0
38 static char sccsid[] = "@(#)message.c   8.1 (Berkeley) 5/31/93";
39 #else
40 __RCSID("$NetBSD: message.c,v 1.16 2023/08/01 07:55:57 mrg Exp $");
41 #endif
42 #endif /* not lint */
43 
44 /*
45  * message.c
46  *
47  * This source herein may be modified and/or distributed by anybody who
48  * so desires, with the following restrictions:
49  *    1.)  No portion of this notice shall be removed.
50  *    2.)  Credit shall not be taken for the creation of this source.
51  *    3.)  This code is not to be traded, sold, or used for personal
52  *         gain or profit.
53  *
54  */
55 
56 #include <signal.h>
57 #include <termios.h>
58 #include <stdarg.h>
59 #include "rogue.h"
60 #include "pathnames.h"
61 
62 static char msgs[NMESSAGES][DCOLS] = {"", "", "", "", ""};
63 static short msg_col = 0, imsg = -1;
64 static boolean rmsg = 0;
65 
66 boolean msg_cleared = 1;
67 char hunger_str[HUNGER_STR_LEN] = "";
68 const char *more = "-more-";
69 
70 static void save_screen(void);
71 
72 static
73 void
message(const char * msg,boolean intrpt)74 message(const char *msg, boolean intrpt)
75 {
76           cant_int = 1;
77 
78           if (!save_is_interactive) {
79                     return;
80           }
81           if (intrpt) {
82                     interrupted = 1;
83                     md_slurp();
84           }
85 
86           if (!msg_cleared) {
87                     mvaddstr(MIN_ROW-1, msg_col, more);
88                     refresh();
89                     wait_for_ack();
90                     check_message();
91           }
92           if (!rmsg) {
93                     imsg = (imsg + 1) % NMESSAGES;
94                     (void)strlcpy(msgs[imsg], msg, sizeof(msgs[imsg]));
95           }
96           mvaddstr(MIN_ROW-1, 0, msg);
97           addch(' ');
98           refresh();
99           msg_cleared = 0;
100           msg_col = strlen(msg);
101 
102           cant_int = 0;
103 
104           if (did_int) {
105                     did_int = 0;
106                     onintr(0);
107           }
108 }
109 
110 void
messagef(boolean intrpt,const char * fmt,...)111 messagef(boolean intrpt, const char *fmt, ...)
112 {
113           va_list ap;
114           char buf[DCOLS];
115 
116           va_start(ap, fmt);
117           vsnprintf(buf, sizeof(buf), fmt, ap);
118           va_end(ap);
119 
120           message(buf, intrpt);
121 }
122 
123 void
remessage(short c)124 remessage(short c)
125 {
126           if (imsg != -1) {
127                     check_message();
128                     rmsg = 1;
129                     while (c > imsg) {
130                               c -= NMESSAGES;
131                     }
132                     message(msgs[((imsg - c) % NMESSAGES)], 0);
133                     rmsg = 0;
134                     move(rogue.row, rogue.col);
135                     refresh();
136           }
137 }
138 
139 void
check_message(void)140 check_message(void)
141 {
142           if (msg_cleared) {
143                     return;
144           }
145           move(MIN_ROW-1, 0);
146           clrtoeol();
147           refresh();
148           msg_cleared = 1;
149 }
150 
151 int
get_input_line(const char * prompt,const char * insert,char * buf,size_t buflen,const char * if_cancelled,boolean add_blank,boolean do_echo)152 get_input_line(const char *prompt, const char *insert,
153                  char *buf, size_t buflen,
154                  const char *if_cancelled,
155                  boolean add_blank, boolean do_echo)
156 {
157           short ch;
158           size_t i = 0, n;
159 
160           message(prompt, 0);
161           n = strlen(prompt);
162 
163           if (insert[0]) {
164                     mvaddstr(0, n + 1, insert);
165                     (void)strlcpy(buf, insert, buflen);
166                     i = strlen(buf);
167                     move(0, (n + i + 1));
168                     refresh();
169           }
170 
171           while (((ch = rgetchar()) != '\r') && (ch != '\n') && (ch != CANCEL)) {
172                     if ((ch >= ' ') && (ch <= '~') && (i < buflen-2)) {
173                               if ((ch != ' ') || (i > 0)) {
174                                         buf[i++] = ch;
175                                         if (do_echo) {
176                                                   addch(ch);
177                                         }
178                               }
179                     }
180                     if ((ch == '\b') && (i > 0)) {
181                               if (do_echo) {
182                                         mvaddch(0, i + n, ' ');
183                                         move(MIN_ROW-1, i+n);
184                               }
185                               i--;
186                     }
187                     refresh();
188           }
189           check_message();
190           if (add_blank) {
191                     buf[i++] = ' ';
192           } else {
193                     while ((i > 0) && (buf[i-1] == ' ')) {
194                               i--;
195                     }
196           }
197 
198           buf[i] = 0;
199 
200           if ((ch == CANCEL) || (i == 0) || ((i == 1) && add_blank)) {
201                     if (if_cancelled) {
202                               message(if_cancelled, 0);
203                     }
204                     return(0);
205           }
206           return(i);
207 }
208 
209 int
rgetchar(void)210 rgetchar(void)
211 {
212           int ch;
213 
214           for(;;) {
215                     ch = getchar();
216 
217                     switch(ch) {
218                     case '\022': /* ^R */
219                               wrefresh(curscr);
220                               break;
221 #ifdef UNIX_BSD4_2
222                     case '\032': /* ^Z */
223                               printf("%s", CL);
224                               fflush(stdout);
225                               tstp();
226                               break;
227 #endif
228                     case '&':
229                               save_screen();
230                               break;
231                     default:
232                               return(ch);
233                     }
234           }
235 }
236 
237 /*
238 Level: 99 Gold: 999999 Hp: 999(999) Str: 99(99) Arm: 99 Exp: 21/10000000 Hungry
239 0    5    1    5    2    5    3    5    4    5    5    5    6    5    7    5
240 */
241 
242 void
print_stats(int stat_mask)243 print_stats(int stat_mask)
244 {
245           char buf[16];
246           boolean label;
247           int row = DROWS - 1;
248 
249           label = (stat_mask & STAT_LABEL) ? 1 : 0;
250 
251           if (stat_mask & STAT_LEVEL) {
252                     if (label) {
253                               mvaddstr(row, 0, "Level: ");
254                     }
255                     /* max level taken care of in make_level() */
256                     mvprintw(row, 7, "%-2d", cur_level);
257           }
258           if (stat_mask & STAT_GOLD) {
259                     if (label) {
260                               mvaddstr(row, 10, "Gold: ");
261                     }
262                     if (rogue.gold > MAX_GOLD) {
263                               rogue.gold = MAX_GOLD;
264                     }
265                     mvprintw(row, 16, "%-6ld", rogue.gold);
266           }
267           if (stat_mask & STAT_HP) {
268                     if (label) {
269                               mvaddstr(row, 23, "Hp: ");
270                     }
271                     if (rogue.hp_max > MAX_HP) {
272                               rogue.hp_current -= (rogue.hp_max - MAX_HP);
273                               rogue.hp_max = MAX_HP;
274                     }
275                     snprintf(buf, sizeof(buf), "%d(%d)",
276                               rogue.hp_current, rogue.hp_max);
277                     mvprintw(row, 27, "%-8s", buf);
278           }
279           if (stat_mask & STAT_STRENGTH) {
280                     if (label) {
281                               mvaddstr(row, 36, "Str: ");
282                     }
283                     if (rogue.str_max > MAX_STRENGTH) {
284                               rogue.str_current -= (rogue.str_max - MAX_STRENGTH);
285                               rogue.str_max = MAX_STRENGTH;
286                     }
287                     snprintf(buf, sizeof(buf), "%d(%d)",
288                               (rogue.str_current + add_strength), rogue.str_max);
289                     mvprintw(row, 41, "%-6s", buf);
290           }
291           if (stat_mask & STAT_ARMOR) {
292                     if (label) {
293                               mvaddstr(row, 48, "Arm: ");
294                     }
295                     if (rogue.armor && (rogue.armor->d_enchant > MAX_ARMOR)) {
296                               rogue.armor->d_enchant = MAX_ARMOR;
297                     }
298                     mvprintw(row, 53, "%-2d", get_armor_class(rogue.armor));
299           }
300           if (stat_mask & STAT_EXP) {
301                     if (label) {
302                               mvaddstr(row, 56, "Exp: ");
303                     }
304                     if (rogue.exp_points > MAX_EXP) {
305                               rogue.exp_points = MAX_EXP;
306                     }
307                     if (rogue.exp > MAX_EXP_LEVEL) {
308                               rogue.exp = MAX_EXP_LEVEL;
309                     }
310                     snprintf(buf, sizeof(buf), "%d/%lu",
311                               rogue.exp, (unsigned long)rogue.exp_points);
312                     mvprintw(row, 61, "%-11s", buf);
313           }
314           if (stat_mask & STAT_HUNGER) {
315                     mvaddstr(row, 73, hunger_str);
316                     clrtoeol();
317           }
318           refresh();
319 }
320 
321 static void
save_screen(void)322 save_screen(void)
323 {
324           FILE *fp;
325           short i, j;
326           char buf[DCOLS+2];
327 
328           if ((fp = fopen(_PATH_SCREENDUMP, "w")) != NULL) {
329                     for (i = 0; i < DROWS; i++) {
330                               for (j=0; j<DCOLS; j++) {
331                                         buf[j] = mvinch(i, j);
332                               }
333                               /*buf[DCOLS] = 0; -- redundant */
334                               for (j=DCOLS; j>0 && buf[j-1]==' '; j--);
335                               buf[j] = 0;
336 
337                               fputs(buf, fp);
338                               putc('\n', fp);
339                     }
340                     fclose(fp);
341           } else {
342                     sound_bell();
343           }
344 }
345 
346 void
sound_bell(void)347 sound_bell(void)
348 {
349           putchar(7);
350           fflush(stdout);
351 }
352 
353 boolean
is_digit(int ch)354 is_digit(int ch)
355 {
356           return((ch >= '0') && (ch <= '9'));
357 }
358 
359 int
r_index(const char * str,int ch,boolean last)360 r_index(const char *str, int ch, boolean last)
361 {
362           int i = 0;
363 
364           if (last) {
365                     for (i = strlen(str) - 1; i >= 0; i--) {
366                               if (str[i] == ch) {
367                                         return(i);
368                               }
369                     }
370           } else {
371                     for (i = 0; str[i]; i++) {
372                               if (str[i] == ch) {
373                                         return(i);
374                               }
375                     }
376           }
377           return(-1);
378 }
379