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Below is the full text to cmd.c from the source code of NetHack 3.1.0. To link to a particular line, write [[NetHack 3.1.0/cmd.c#line123]], for example.

Warning! This is the source code from an old release. For the latest release, see Source code

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1.    /*	SCCS Id: @(#)cmd.c	3.1	92/11/25	*/
2.    /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
3.    /* NetHack may be freely redistributed.  See license for details. */
4.    
5.    #include "hack.h"
6.    #include "func_tab.h"
7.    
8.    /*
9.     * Some systems may have getchar() return EOF for various reasons, and
10.    * we should not quit before seeing at least NR_OF_EOFS consecutive EOFs.
11.    */
12.   #if defined(SYSV) || defined(DGUX) || defined(HPUX)
13.   #define	NR_OF_EOFS	20
14.   #endif
15.   
16.   #ifdef DUMB	/* stuff commented out in extern.h, but needed here */
17.   extern int NDECL(doapply); /**/
18.   extern int NDECL(dorub); /**/
19.   extern int NDECL(dojump); /**/
20.   extern int NDECL(doextlist); /**/
21.   extern int NDECL(dodrop); /**/
22.   extern int NDECL(doddrop); /**/
23.   extern int NDECL(dodown); /**/
24.   extern int NDECL(doup); /**/
25.   extern int NDECL(donull); /**/
26.   extern int NDECL(dowipe); /**/
27.   extern int NDECL(do_mname); /**/
28.   extern int NDECL(ddocall); /**/
29.   extern int NDECL(dotakeoff); /**/
30.   extern int NDECL(doremring); /**/
31.   extern int NDECL(dowear); /**/
32.   extern int NDECL(doputon); /**/
33.   extern int NDECL(doddoremarm); /**/
34.   extern int NDECL(dokick); /**/
35.   extern int NDECL(dothrow); /**/
36.   extern int NDECL(doeat); /**/
37.   extern int NDECL(done2); /**/
38.   extern int NDECL(doengrave); /**/
39.   extern int NDECL(dopickup); /**/
40.   extern int NDECL(ddoinv); /**/
41.   extern int NDECL(dotypeinv); /**/
42.   extern int NDECL(dolook); /**/
43.   extern int NDECL(doprgold); /**/
44.   extern int NDECL(doprwep); /**/
45.   extern int NDECL(doprarm); /**/
46.   extern int NDECL(doprring); /**/
47.   extern int NDECL(dopramulet); /**/
48.   extern int NDECL(doprtool); /**/
49.   extern int NDECL(dosuspend); /**/
50.   extern int NDECL(doforce); /**/
51.   extern int NDECL(doopen); /**/
52.   extern int NDECL(doclose); /**/
53.   extern int NDECL(dosh); /**/
54.   extern int NDECL(dodiscovered); /**/
55.   extern int NDECL(doset); /**/
56.   extern int NDECL(dotogglepickup); /**/
57.   extern int NDECL(dowhatis); /**/
58.   extern int NDECL(doquickwhatis); /**/
59.   extern int NDECL(dowhatdoes); /**/
60.   extern int NDECL(dohelp); /**/
61.   extern int NDECL(dohistory); /**/
62.   extern int NDECL(doloot); /**/
63.   extern int NDECL(dodrink); /**/
64.   extern int NDECL(dodip); /**/
65.   extern int NDECL(dosacrifice); /**/
66.   extern int NDECL(dopray); /**/
67.   extern int NDECL(doturn); /**/
68.   extern int NDECL(doredraw); /**/
69.   extern int NDECL(doread); /**/
70.   extern int NDECL(dosave); /**/
71.   extern int NDECL(dosearch); /**/
72.   extern int NDECL(doidtrap); /**/
73.   extern int NDECL(dopay); /**/
74.   extern int NDECL(dosit); /**/
75.   extern int NDECL(dotalk); /**/
76.   extern int NDECL(docast); /**/
77.   extern int NDECL(dovspell); /**/
78.   extern int NDECL(dotele); /**/
79.   extern int NDECL(dountrap); /**/
80.   extern int NDECL(doversion); /**/
81.   extern int NDECL(doextversion); /**/
82.   extern int NDECL(dowield); /**/
83.   extern int NDECL(dozap); /**/
84.   extern int NDECL(doorganize); /**/
85.   #endif /* DUMB */
86.   
87.   #ifdef OVL1
88.   static int NDECL((*timed_occ_fn));
89.   #endif /* OVL1 */
90.   
91.   STATIC_PTR int NDECL(doprev_message);
92.   STATIC_PTR int NDECL(timed_occupation);
93.   STATIC_PTR int NDECL(doextcmd);
94.   # ifdef POLYSELF
95.   STATIC_PTR int NDECL(domonability);
96.   # endif
97.   # ifdef WIZARD
98.   STATIC_PTR int NDECL(wiz_wish);
99.   STATIC_PTR int NDECL(wiz_identify);
100.  STATIC_PTR int NDECL(wiz_map);
101.  STATIC_PTR int NDECL(wiz_genesis);
102.  STATIC_PTR int NDECL(wiz_where);
103.  STATIC_PTR int NDECL(wiz_detect);
104.  STATIC_PTR int NDECL(wiz_level_tele);
105.  # endif
106.  # ifdef EXPLORE_MODE
107.  STATIC_PTR int NDECL(enter_explore_mode);
108.  # endif
109.  # if defined(WIZARD) || defined(EXPLORE_MODE)
110.  STATIC_PTR int NDECL(wiz_attributes);
111.  # endif
112.  
113.  #ifdef OVLB
114.  static void FDECL(enlght_line, (const char *,const char *,const char *));
115.  #ifdef UNIX
116.  static void NDECL(end_of_input);
117.  #endif
118.  #endif /* OVLB */
119.  
120.  #ifdef OVL0
121.  static int FDECL(click_to_cmd, (int,int,int));
122.  #endif /* OVL0 */
123.  
124.  STATIC_OVL char *NDECL(parse);
125.  
126.  #ifdef UNIX
127.  extern boolean hu;
128.  #endif
129.  
130.  #ifdef OVL1
131.  
132.  STATIC_PTR int
133.  doprev_message()
134.  {
135.      return nh_doprev_message();
136.  }
137.  
138.  /* Count down by decrementing multi */
139.  STATIC_PTR int
140.  timed_occupation() {
141.  	(*timed_occ_fn)();
142.  	if (multi > 0)
143.  		multi--;
144.  	return multi > 0;
145.  }
146.  
147.  /* If you have moved since initially setting some occupations, they
148.   * now shouldn't be able to restart.
149.   *
150.   * The basic rule is that if you are carrying it, you can continue
151.   * since it is with you.  If you are acting on something at a distance,
152.   * your orientation to it must have changed when you moved.
153.   *
154.   * The exception to this is taking off items, since they can be taken
155.   * off in a number of ways in the intervening time, screwing up ordering.
156.   *
157.   *	Currently:	Take off all armor.
158.   *			Picking Locks / Forcing Chests.
159.   */
160.  void
161.  reset_occupations() {
162.  
163.  	reset_remarm();
164.  	reset_pick();
165.  }
166.  
167.  /* If a time is given, use it to timeout this function, otherwise the
168.   * function times out by its own means.
169.   */
170.  void
171.  set_occupation(fn, txt, xtime)
172.  int NDECL((*fn));
173.  const char *txt;
174.  int xtime;
175.  {
176.  	if (xtime) {
177.  		occupation = timed_occupation;
178.  		timed_occ_fn = fn;
179.  	} else
180.  		occupation = fn;
181.  	occtxt = txt;
182.  	occtime = 0;
183.  	return;
184.  }
185.  
186.  #ifdef REDO
187.  
188.  static char NDECL(popch);
189.  
190.  /* Provide a means to redo the last command.  The flag `in_doagain' is set
191.   * to true while redoing the command.  This flag is tested in commands that
192.   * require additional input (like `throw' which requires a thing and a
193.   * direction), and the input prompt is not shown.  Also, while in_doagain is
194.   * TRUE, no keystrokes can be saved into the saveq.
195.   */
196.  #define BSIZE 20
197.  static char pushq[BSIZE], saveq[BSIZE];
198.  static int NEARDATA phead, NEARDATA ptail, NEARDATA shead, NEARDATA stail;
199.  
200.  static char
201.  popch() {
202.  	/* If occupied, return '\0', letting tgetch know a character should
203.  	 * be read from the keyboard.  If the character read is not the
204.  	 * ABORT character (as checked in pcmain.c), that character will be
205.  	 * pushed back on the pushq.
206.  	 */
207.  	if (occupation) return '\0';
208.  	if (in_doagain) return (shead != stail) ? saveq[stail++] : '\0';
209.  	else		return (phead != ptail) ? pushq[ptail++] : '\0';
210.  }
211.  
212.  char
213.  pgetchar() {		/* curtesy of aeb@cwi.nl */
214.  	register int ch;
215.  
216.  	if(!(ch = popch()))
217.  		ch = nhgetch();
218.  	return(ch);
219.  }
220.  
221.  /* A ch == 0 resets the pushq */
222.  void
223.  pushch(ch)
224.  char ch;
225.  {
226.  	if (!ch)
227.  		phead = ptail = 0;
228.  	if (phead < BSIZE)
229.  		pushq[phead++] = ch;
230.  	return;
231.  }
232.  
233.  /* A ch == 0 resets the saveq.	Only save keystrokes when not
234.   * replaying a previous command.
235.   */
236.  void
237.  savech(ch)
238.  char ch;
239.  {
240.  	if (!in_doagain) {
241.  		if (!ch)
242.  			phead = ptail = shead = stail = 0;
243.  		else if (shead < BSIZE)
244.  			saveq[shead++] = ch;
245.  	}
246.  	return;
247.  }
248.  #endif /* REDO */
249.  
250.  #endif /* OVL1 */
251.  #ifdef OVLB
252.  
253.  STATIC_PTR int
254.  doextcmd()	/* here after # - now read a full-word command */
255.  {
256.  	char buf[BUFSZ];
257.  	register const struct ext_func_tab *efp = extcmdlist;
258.  again:
259.  #ifdef COM_COMPL
260.  	get_ext_cmd(buf);
261.  #else
262.  	getlin("#", buf);
263.  #endif
264.  	clear_nhwindow(WIN_MESSAGE);
265.  	if(buf[0] == '\0' || buf[0] == '\033')
266.  		return 0;
267.  	if(buf[0] == '?') {
268.  		(void) doextlist();
269.  		goto again;
270.  	}
271.  	while(efp->ef_txt) {
272.  		if(!strncmpi(efp->ef_txt, buf,BUFSIZ))
273.  			return (*(efp->ef_funct))();
274.  		efp++;
275.  	}
276.  	pline("%s: unknown extended command.", buf);
277.  	return 0;
278.  }
279.  
280.  int
281.  doextlist()	/* here after #? - now list all full-word commands */
282.  {
283.  	register const struct ext_func_tab *efp;
284.  	char	 buf[BUFSZ];
285.  	winid datawin;
286.  
287.  	datawin = create_nhwindow(NHW_TEXT);
288.  	putstr(datawin, 0, "");
289.  	putstr(datawin, 0, "            Extended Commands List");
290.  	putstr(datawin, 0, "");
291.  #ifdef COM_COMPL
292.  	putstr(datawin, 0, "    Press '#', then type (first letter only):");
293.  #else
294.  	putstr(datawin, 0, "    Press '#', then type:");
295.  #endif
296.  	putstr(datawin, 0, "");
297.  
298.  	for(efp = extcmdlist; efp->ef_txt; efp++) {
299.  		Sprintf(buf, "    %-8s  - %s.", efp->ef_txt, efp->ef_desc);
300.  		putstr(datawin, 0, buf);
301.  	}
302.  	display_nhwindow(datawin, FALSE);
303.  	destroy_nhwindow(datawin);
304.  	return 0;
305.  }
306.  
307.  #ifdef POLYSELF
308.  STATIC_PTR int
309.  domonability()
310.  {
311.  	if (can_breathe(uasmon)) return dobreathe();
312.  	else if (attacktype(uasmon, AT_SPIT)) return dospit();
313.  	else if (u.usym == S_NYMPH) return doremove();
314.  	else if (u.usym == S_UMBER) return doconfuse();
315.  	else if (is_were(uasmon)) return dosummon();
316.  	else if (webmaker(uasmon)) return dospinweb();
317.  	else if (is_hider(uasmon)) return dohide();
318.  	else if(u.umonnum == PM_GREMLIN) {
319.  	    if(IS_FOUNTAIN(levl[u.ux][u.uy].typ)) {
320.  		struct monst *mtmp;
321.  		if ((mtmp = cloneu()) != 0) {
322.  			mtmp->mhpmax = (u.mhmax /= 2);
323.  			You("multiply.");
324.  			dryup(u.ux,u.uy);
325.  		}
326.  	    } else pline("There is no fountain here.");
327.  	}
328.  	else if (u.usym == S_UNICORN) {
329.  	    use_unicorn_horn((struct obj *)0);
330.  	    return 1;
331.  	} else if (u.umonnum == PM_MIND_FLAYER) return domindblast();
332.  	else if (uasmon->msound == MS_SHRIEK) {
333.  	    You("shriek.");
334.  	    aggravate();
335.  	} else if (u.umonnum >= 0)
336.  		pline("Any special ability you may have is purely reflexive.");
337.  	else You("don't have a special ability!");
338.  	return 0;
339.  }
340.  #endif
341.  
342.  #ifdef EXPLORE_MODE
343.  STATIC_PTR int
344.  enter_explore_mode()
345.  {
346.  	if(!discover && !wizard) {
347.  		pline("Beware!  From discovery mode there will be no return to normal game.");
348.  		if (yn("Do you want to enter discovery mode?") == 'y') {
349.  			clear_nhwindow(WIN_MESSAGE);
350.  			You("are now in non-scoring discovery mode.");
351.  			discover = TRUE;
352.  		}
353.  		else {
354.  			clear_nhwindow(WIN_MESSAGE);
355.  			pline("Resuming normal game.");
356.  		}
357.  	}
358.  	return 0;
359.  }
360.  #endif
361.  
362.  #ifdef WIZARD
363.  STATIC_PTR int
364.  wiz_wish()	/* Unlimited wishes for debug mode by Paul Polderman */
365.  {
366.  	if (wizard) {
367.  	    makewish();
368.  	    (void) encumber_msg();
369.  	} else
370.  	    pline("Unavailable command '^W'.");
371.  	return 0;
372.  }
373.  
374.  STATIC_PTR int
375.  wiz_identify()
376.  {
377.  	struct obj *obj;
378.  
379.  	if (!wizard)
380.  		pline("Unavailable command '^I'.");
381.  	else {
382.  		for (obj = invent; obj; obj = obj->nobj)
383.  			if (!objects[obj->otyp].oc_name_known || !obj->known
384.  						|| !obj->dknown || !obj->bknown)
385.  				(void) identify(obj);
386.  	}
387.  	return 0;
388.  }
389.  
390.  STATIC_PTR int
391.  wiz_map()
392.  {
393.  	if (wizard)	do_mapping();
394.  	else		pline("Unavailable command '^F'.");
395.  	return 0;
396.  }
397.  
398.  STATIC_PTR int
399.  wiz_genesis()
400.  {
401.  	if (wizard)	(void) create_particular();
402.  	else		pline("Unavailable command '^G'.");
403.  	return 0;
404.  }
405.  
406.  STATIC_PTR int
407.  wiz_where()
408.  {
409.  	if (wizard) print_dungeon();
410.  	else	    pline("Unavailable command '^O'.");
411.  	return 0;
412.  }
413.  
414.  STATIC_PTR int
415.  wiz_detect()
416.  {
417.  	if(wizard)  (void) findit();
418.  	else	    pline("Unavailable command '^E'.");
419.  	return 0;
420.  }
421.  
422.  STATIC_PTR int
423.  wiz_level_tele()
424.  {
425.  	if (wizard)	level_tele();
426.  	else		pline("Unavailable command '^V'.");
427.  	return 0;
428.  }
429.  
430.  #endif /* WIZARD */
431.  
432.  /* -enlightenment- */
433.  static winid en_win;
434.  static const char
435.  	*You_ = "You ",
436.  	*are  = "are ",  *were  = "were ",
437.  	*have = "have ", *had   = "had ",
438.  	*can  = "can ",  *could = "could ";
439.  
440.  #define enl_msg(prefix,present,past,suffix) \
441.  			enlght_line(prefix, final ? past : present, suffix)
442.  #define you_are(attr)	enl_msg(You_,are,were,attr)
443.  #define you_have(attr)	enl_msg(You_,have,had,attr)
444.  #define you_can(attr)	enl_msg(You_,can,could,attr)
445.  
446.  static void
447.  enlght_line(start, middle, end)
448.  const char *start, *middle, *end;
449.  {
450.  	char buf[BUFSZ];
451.  
452.  	Sprintf(buf, "%s%s%s.", start, middle, end);
453.  	putstr(en_win, 0, buf);
454.  }
455.  
456.  void
457.  enlightenment(final)
458.  boolean final;
459.  {
460.  	int ltmp;
461.  	char buf[BUFSZ];
462.  
463.  	en_win = create_nhwindow(NHW_MENU);
464.  	putstr(en_win, 0, final ? "Final Attributes:" : "Current Attributes:");
465.  	putstr(en_win, 0, "");
466.  
467.  	/* note: piousness 20 matches MIN_QUEST_ALIGN (quest.h) */
468.  	if (u.ualign.record >= 20)	you_are("piously aligned");
469.  	else if (u.ualign.record > 13)	you_are("devoutly aligned");
470.  	else if (u.ualign.record > 8)	you_are("fervently aligned");
471.  	else if (u.ualign.record > 3)	you_are("stridently aligned");
472.  	else if (u.ualign.record == 3)	you_are("aligned");
473.  	else if (u.ualign.record > 0)	you_are("haltingly aligned");
474.  	else if (u.ualign.record == 0)	you_are("nominally aligned");
475.  	else if (u.ualign.record >= -3)	you_have("strayed");
476.  	else if (u.ualign.record >= -8)	you_have("sinned");
477.  	else you_have("transgressed");
478.  #ifdef WIZARD
479.  	if (wizard) {
480.  		Sprintf(buf, " %d", u.ualign.record);
481.  		enl_msg("Your alignment ", "is", "was", buf);
482.  	}
483.  #endif
484.  
485.  	if (Telepat) you_are("telepathic");
486.  	if (Searching) you_have("automatic searching");
487.  	if (Teleportation) you_can("teleport");
488.  	if (Teleport_control) you_have("teleport control");
489.  	if (See_invisible) enl_msg(You_, "see", "saw", " invisible");
490.  	if (Invisible) you_are("invisible");
491.  	else if (Invis) you_are("invisible to others");
492.  	if (Fast) you_are((Fast & ~INTRINSIC) ? "very fast" : "fast");
493.  	if (Stealth) you_are("stealthy");
494.  	if (Regeneration) enl_msg("You regenerate", "", "d", "");
495.  	if (Hunger) you_have("hunger");
496.  	if (Conflict) enl_msg("You cause", "", "d", " conflict");
497.  	if (Aggravate_monster) enl_msg("You aggravate", "", "d", " monsters");
498.  	if (Poison_resistance) you_are("poison resistant");
499.  	if (Fire_resistance) you_are("fire resistant");
500.  	if (Cold_resistance) you_are("cold resistant");
501.  	if (Shock_resistance) you_are("shock resistant");
502.  	if (Sleep_resistance) you_are("sleep resistant");
503.  	if (Disint_resistance) you_are("disintegration-resistant");
504.  	if (Protection_from_shape_changers)
505.  		you_are("protected from shape changers");
506.  #ifdef POLYSELF
507.  	if (Polymorph) you_are("polymorphing");
508.  	if (Polymorph_control) you_have("polymorph control");
509.  #endif
510.  	if (HHalluc_resistance)
511.  		enl_msg("You resist", "", "ed", " hallucinations");
512.  	if (final) {
513.  		if (Hallucination) you_are("hallucinating");
514.  		if (Stunned) you_are("stunned");
515.  		if (Confusion) you_are("confused");
516.  		if (Sick) you_are("sick");
517.  		if (Blinded) you_are("blinded");
518.  	}
519.  	if (Wounded_legs) {
520.  		Sprintf(buf, "wounded %s", makeplural(body_part(LEG)));
521.  		you_have(buf);
522.  	}
523.  	if (Glib) {
524.  		Sprintf(buf, "slippery %s", makeplural(body_part(FINGER)));
525.  		you_have(buf);
526.  	}
527.  	if (Strangled) you_are("being strangled");
528.  	if (Stoned) you_are("turning to stone");
529.  	if (Lifesaved)
530.  		enl_msg("Your life ", "will be", "would have been", " saved");
531.  	if (Adornment) you_are("adorned");
532.  	if (Warning) you_are("warned");
533.  	if (Protection) you_are("protected");
534.  	if (Reflecting) you_have("reflection");
535.  	if (Levitation) you_are("levitating");
536.  	if (Fumbling) enl_msg("You fumble", "", "d", "");
537.  	if (Jumping) you_can("jump");
538.  	if (Wwalking) you_can("walk on water");
539.  	if (Magical_breathing) you_can("survive without air");
540.  	if (Antimagic) you_are("magic-protected");
541.  	if (Displaced) you_are("displaced");
542.  	if (Clairvoyant) you_are("clairvoyant");
543.  #ifdef POLYSELF
544.  	if (u.ulycn != -1) {	
545.  		Strcpy(buf, an(mons[u.ulycn].mname));
546.  		you_are(buf);
547.  	}
548.  #endif
549.  	if (Luck) {
550.  	    ltmp = abs((int)Luck);
551.  	    Sprintf(buf, "%s%slucky",
552.  		    ltmp >= 10 ? "extremely " : ltmp >= 5 ? "very " : "",
553.  		    Luck < 0 ? "un" : "");
554.  #ifdef WIZARD
555.  	    if (wizard) Sprintf(eos(buf), " (%d)", Luck);
556.  #endif
557.  	    you_are(buf);
558.  	}
559.  #ifdef WIZARD
560.  	 else if (wizard) enl_msg("Your luck ", "is", "was", " zero");
561.  #endif
562.  	ltmp = stone_luck(TRUE);
563.  	if (ltmp > 0) you_have("extra luck");
564.  	else if (ltmp < 0) you_have("reduced luck");
565.  	if (carrying(LUCKSTONE)) {
566.  	    ltmp = stone_luck(FALSE);
567.  	    if (ltmp <= 0)
568.  		enl_msg("Bad luck ", "does", "did", " not time out for you");
569.  	    if (ltmp >= 0)
570.  		enl_msg("Good luck ", "does", "did", " not time out for you");
571.  	}
572.  
573.  	display_nhwindow(en_win, TRUE);
574.  	destroy_nhwindow(en_win);
575.  	return;
576.  }
577.  
578.  #if defined(WIZARD) || defined(EXPLORE_MODE)
579.  STATIC_PTR int
580.  wiz_attributes()
581.  {
582.  	if (wizard || discover)
583.  		enlightenment(FALSE);
584.  	else
585.  		pline("Unavailable command '^X'.");
586.  	return 0;
587.  }
588.  #endif /* WIZARD || EXPLORE_MODE */
589.  
590.  #endif /* OVLB */
591.  #ifdef OVL1
592.  
593.  #ifndef M
594.  # ifndef NHSTDC
595.  #  define M(c)		(0x80 | (c))
596.  # else
597.  #  define M(c)		((c) - 128)
598.  # endif /* NHSTDC */
599.  #endif
600.  #ifndef C
601.  #define C(c)		(0x1f & (c))
602.  #endif
603.  
604.  static const struct func_tab cmdlist[] = {
605.  	{C('d'), dokick},	/* "D" is for door!...? */
606.  #ifdef WIZARD
607.  	{C('e'), wiz_detect},
608.  	{C('f'), wiz_map},
609.  	{C('g'), wiz_genesis},
610.  	{C('i'), wiz_identify},
611.  #endif
612.  	{C('l'), doredraw}, /* if number_pad is set */
613.  #ifdef WIZARD
614.  	{C('o'), wiz_where},
615.  #endif
616.  	{C('p'), doprev_message},
617.  	{C('r'), doredraw},
618.  	{C('t'), dotele},
619.  #ifdef WIZARD
620.  	{C('v'), wiz_level_tele},
621.  	{C('w'), wiz_wish},
622.  #endif
623.  #if defined(WIZARD) || defined(EXPLORE_MODE)
624.  	{C('x'), wiz_attributes},
625.  #endif
626.  #ifdef SUSPEND
627.  	{C('z'), dosuspend},
628.  #endif
629.  	{'a', doapply},
630.  	{'A', doddoremarm},
631.  	{M('a'), doorganize},
632.  /*	'b', 'B' : go sw */
633.  	{'c', doclose},
634.  	{'C', do_mname},
635.  	{M('c'), dotalk},
636.  	{'d', dodrop},
637.  	{'D', doddrop},
638.  	{M('d'), dodip},
639.  	{'e', doeat},
640.  	{'E', doengrave},
641.  /* Soon to be
642.  	{'f', dofight, "fighting"},
643.  	{'F', doFight, "fighting"},
644.   */
645.  	{M('f'), doforce},
646.  /*	'g', 'G' : multiple go */
647.  /*	'h', 'H' : go west */
648.  	{'h', dohelp}, /* if number_pad is set */
649.  	{'i', ddoinv},
650.  	{'I', dotypeinv},		/* Robert Viduya */
651.  	{M('i'), doinvoke},
652.  /*	'j', 'J', 'k', 'K', 'l', 'L', 'm', 'M', 'n', 'N' : move commands */
653.  	{'j', dojump}, /* if number_pad is on */
654.  	{M('j'), dojump},
655.  	{'k', dokick}, /* if number_pad is on */
656.  	{'l', doloot}, /* if number_pad is on */
657.  	{M('l'), doloot},
658.  /*	'n' prefixes a count if number_pad is on */
659.  #ifdef POLYSELF
660.  	{M('m'), domonability},
661.  #endif /* POLYSELF */
662.  	{'N', ddocall}, /* if number_pad is on */
663.  	{M('N'), ddocall},
664.  	{'o', doopen},
665.  	{'O', doset},
666.  	{M('o'), dosacrifice},
667.  	{'p', dopay},
668.  	{'P', doputon},
669.  	{M('p'), dopray},
670.  	{'q', dodrink},
671.  	{'Q', done2},
672.  	{'r', doread},
673.  	{'R', doremring},
674.  	{M('r'), dorub},
675.  	{'s', dosearch, "searching"},
676.  	{'S', dosave},
677.  	{M('s'), dosit},
678.  	{'t', dothrow},
679.  	{'T', dotakeoff},
680.  	{M('t'), doturn},
681.  /*	'u', 'U' : go ne */
682.  	{'u', dountrap}, /* if number_pad is on */
683.  	{M('u'), dountrap},
684.  	{'v', doversion},
685.  	{'V', dohistory},
686.  	{M('v'), doextversion},
687.  	{'w', dowield},
688.  	{'W', dowear},
689.  	{M('w'), dowipe},
690.  	{'x', dovspell},			/* Mike Stephenson */
691.  #ifdef EXPLORE_MODE
692.  	{'X', enter_explore_mode},
693.  #endif
694.  /*	'y', 'Y' : go nw */
695.  	{'z', dozap},
696.  	{'Z', docast},
697.  	{'<', doup},
698.  	{'>', dodown},
699.  	{'/', dowhatis},
700.  	{'&', dowhatdoes},
701.  	{'?', dohelp},
702.  #ifdef SHELL
703.  	{'!', dosh},
704.  #endif
705.  	{'.', donull, "waiting"},
706.  	{' ', donull, "waiting"},
707.  	{',', dopickup},
708.  	{':', dolook},
709.  	{';', doquickwhatis},
710.  	{'^', doidtrap},
711.  	{'\\', dodiscovered},		/* Robert Viduya */
712.  	{'@', dotogglepickup},
713.  	{WEAPON_SYM,  doprwep},
714.  	{ARMOR_SYM,  doprarm},
715.  	{RING_SYM,  doprring},
716.  	{AMULET_SYM, dopramulet},
717.  	{TOOL_SYM, doprtool},
718.  	{GOLD_SYM, doprgold},
719.  	{SPBOOK_SYM, dovspell},			/* Mike Stephenson */
720.  	{'#', doextcmd},
721.  	{0,0,0}
722.  };
723.  #undef M
724.  
725.  const struct ext_func_tab extcmdlist[] = {
726.  	{"adjust", "adjust inventory letters", doorganize},
727.  	{"chat", "talk to someone", dotalk},	/* converse? */
728.  	{"dip", "dip an object into something", dodip},
729.  	{"force", "force a lock", doforce},
730.  	{"invoke", "invoke an object's powers", doinvoke},
731.  	{"jump", "jump to a location", dojump},
732.  	{"loot", "loot a box on the floor", doloot},
733.  #ifdef POLYSELF
734.  	{"monster", "use a monster's special ability", domonability},
735.  #endif
736.  	{"name", "name an item or type of object", ddocall},
737.  	{"offer", "offer a sacrifice to the gods", dosacrifice},
738.  	{"pray", "pray to the gods for help", dopray},
739.  	{"rub", "rub a lamp", dorub},
740.  	{"sit", "sit down", dosit},
741.  	{"turn", "turn undead", doturn},
742.  	{"untrap", "untrap something", dountrap},
743.  	{"version", "list compile time options for this version of NetHack",
744.  		doextversion},
745.  #ifdef MAC
746.  	{"window", "clean up windows", SanePositions},
747.  #endif
748.  	{"wipe", "wipe off your face", dowipe},
749.  	{"?", "get this list of extended commands", doextlist},
750.  	{NULL, NULL, donull}
751.  };
752.  
753.  #define unctrl(c)	((c) <= C('z') ? (0x60 | (c)) : (c))
754.  #define unmeta(c)	(0x7f & (c))
755.  
756.  
757.  void
758.  rhack(cmd)
759.  register char *cmd;
760.  {
761.  	register const struct func_tab *tlist = cmdlist;
762.  	boolean firsttime = FALSE;
763.  	register int res;
764.  
765.  	if(!cmd) {
766.  		firsttime = TRUE;
767.  		flags.nopick = 0;
768.  		cmd = parse();
769.  	}
770.  	if(*cmd == (char)033) {
771.  		flags.move = 0;
772.  		return;
773.  	}
774.  #ifdef REDO
775.  	if (*cmd == DOAGAIN && !in_doagain && saveq[0]) {
776.  		in_doagain = TRUE;
777.  		stail = 0;
778.  		rhack(NULL);	/* read and execute command */
779.  		in_doagain = FALSE;
780.  		return;
781.  	}
782.  	/* Special case of *cmd == ' ' handled better below */
783.  	if(!*cmd || *cmd == (char)0377) {
784.  #else
785.  	if(!*cmd || *cmd == (char)0377 ||
786.  	   (!flags.rest_on_space && *cmd == ' ')) {
787.  #endif
788.  		nhbell();
789.  		flags.move = 0;
790.  		return;		/* probably we just had an interrupt */
791.  	}
792.  	if(movecmd(*cmd)) {
793.  	walk:
794.  		if(multi) flags.mv = 1;
795.  		domove();
796.  		return;
797.  	}
798.  	if(movecmd(flags.num_pad ? unmeta(*cmd) : lowc(*cmd))) {
799.  		flags.run = 1;
800.  	rush:
801.  		if(firsttime){
802.  			if(!multi) multi = COLNO;
803.  			u.last_str_turn = 0;
804.  		}
805.  		flags.mv = 1;
806.  		domove();
807.  		return;
808.  	}
809.  	if(*cmd == 'g' && movecmd(cmd[1])) {
810.  		flags.run = 2;
811.  		goto rush;
812.  	}
813.  	if (((*cmd == 'G' || (flags.num_pad && *cmd == '5')) &&
814.  	    movecmd(lowc(cmd[1]))) || movecmd(unctrl(*cmd))) {
815.  		flags.run = 3;
816.  		goto rush;
817.  	}
818.  	if((*cmd == 'm' || (flags.num_pad && *cmd == '-')) &&
819.  	    movecmd(cmd[1])) {
820.  		flags.run = 0;
821.  		flags.nopick = 1;
822.  		goto walk;
823.  	}
824.  	if(*cmd == 'M' && movecmd(lowc(cmd[1]))) {
825.  		flags.run = 1;
826.  		flags.nopick = 1;
827.  		goto rush;
828.  	}
829.  	if (flags.num_pad && *cmd == '0') {
830.  		(void)ddoinv();	/* A convenience borrowed from the PC */
831.  		flags.move = 0;
832.  		multi = 0;
833.  		return;
834.  	}
835.  	while(tlist->f_char) {
836.  		if((*cmd & 0xff) == (tlist->f_char & 0xff)){
837.  			/* Special case of *cmd == ' ' handled here */
838.  			if (*cmd == ' ' && !flags.rest_on_space)
839.  				break;
840.  
841.  			/* Now control-A can stop lengthy commands */
842.  			/* in the PC version only -- use ^C-N otherwise */
843.  			if (tlist->f_text && !occupation && multi)
844.  #ifdef GCC_WARN
845.  				set_occupation(tlist->f_funct,
846.  						tlist->f_text, multi);
847.  #else
848.  				set_occupation(((struct func_tab *)tlist)->f_funct,
849.  					tlist->f_text, multi);
850.  #endif
851.  			res = (*(tlist->f_funct))();
852.  			if(!res) {
853.  				flags.move = 0;
854.  				multi = 0;
855.  			}
856.  			return;
857.  		}
858.  		tlist++;
859.  	}
860.  	{ char expcmd[10];
861.  	  register char *cp = expcmd;
862.  	  while(*cmd && cp-expcmd < sizeof(expcmd)-2) {
863.  		if(*cmd >= 040 && *cmd < 0177)
864.  			*cp++ = *cmd++;
865.  		else if (*cmd & 0200) {
866.  			*cp++ = 'M';
867.  			*cp++ = '-';
868.  			*cp++ = *cmd++ &=~ 0200;
869.  		}
870.  		else {
871.  			*cp++ = '^';
872.  			*cp++ = *cmd++ ^ 0100;
873.  		}
874.  	  }
875.  	  *cp = 0;
876.  	  Norep("Unknown command '%s'.", expcmd);
877.  	}
878.  	multi = flags.move = 0;
879.  	return;
880.  }
881.  
882.  int
883.  xytod(x, y)	/* convert an x,y pair into a direction code */
884.  schar x, y;
885.  {
886.  	register int dd;
887.  
888.  	for(dd = 0; dd < 8; dd++)
889.  	    if(x == xdir[dd] && y == ydir[dd]) return dd;
890.  
891.  	return -1;
892.  }
893.  
894.  #ifdef WALKIES
895.  void
896.  dtoxy(cc,dd)	/* convert a direction code into an x,y pair */
897.  coord *cc;
898.  register int dd;
899.  {
900.  	cc->x = xdir[dd];
901.  	cc->y = ydir[dd];
902.  	return;
903.  }
904.  #endif /* WALKIES */
905.  
906.  int
907.  movecmd(sym)	/* also sets u.dz, but returns false for <> */
908.  char sym;
909.  {
910.  	register const char *dp;
911.  	register const char *sdp = flags.num_pad ? ndir : sdir;
912.  
913.  	u.dz = 0;
914.  	if(!(dp = index(sdp, sym))) return 0;
915.  	u.dx = xdir[dp-sdp];
916.  	u.dy = ydir[dp-sdp];
917.  	u.dz = zdir[dp-sdp];
918.  #ifdef POLYSELF
919.  	if (u.dx && u.dy && u.umonnum == PM_GRID_BUG) {
920.  		u.dx = u.dy = 0;
921.  		return 0;
922.  	}
923.  #endif
924.  	return !u.dz;
925.  }
926.  
927.  int
928.  getdir(s)
929.  const char *s;
930.  {
931.  	char dirsym;
932.  
933.  #ifdef REDO	
934.  	if(in_doagain)
935.  	    dirsym = readchar();
936.  	else
937.  #endif
938.  	    dirsym = yn_function (s ? s : "In what direction?", NULL, '\0');
939.  #ifdef REDO
940.  	savech(dirsym);
941.  #endif
942.  	if(dirsym == '.' || dirsym == 's')
943.  		u.dx = u.dy = u.dz = 0;
944.  	else if(!movecmd(dirsym) && !u.dz) {
945.  		if(!index(quitchars, dirsym))
946.  			pline("What a strange direction!");
947.  		return 0;
948.  	}
949.  	if(!u.dz && (Stunned || (Confusion && !rn2(5)))) confdir();
950.  	return 1;
951.  }
952.  
953.  #endif /* OVL1 */
954.  #ifdef OVLB
955.  
956.  void
957.  confdir()
958.  {
959.  	register int x =
960.  #ifdef POLYSELF
961.  		(u.umonnum == PM_GRID_BUG) ? 2*rn2(4) :
962.  #endif
963.  							rn2(8);
964.  	u.dx = xdir[x];
965.  	u.dy = ydir[x];
966.  	return;
967.  }
968.  
969.  #endif /* OVLB */
970.  #ifdef OVL0
971.  
972.  int
973.  isok(x,y)
974.  register int x, y;
975.  {
976.  	/* x corresponds to curx, so x==1 is the first column. Ach. %% */
977.  	return x >= 1 && x <= COLNO-1 && y >= 0 && y <= ROWNO-1;
978.  }
979.  
980.  static int NEARDATA last_multi;
981.  
982.  /*
983.   * convert a MAP window position into a movecmd
984.   */
985.  static int
986.  click_to_cmd(x, y, mod)
987.      int x, y, mod;
988.  {
989.      x -= u.ux;
990.      y -= u.uy;
991.      /* convert without using floating point, allowing sloppy clicking */
992.      if(x > 2*abs(y))
993.  	x = 1, y = 0;
994.      else if(y > 2*abs(x))
995.  	x = 0, y = 1;
996.      else if(x < -2*abs(y))
997.  	x = -1, y = 0;
998.      else if(y < -2*abs(x))
999.  	x = 0, y = -1;
1000.     else
1001. 	x = sgn(x), y = sgn(y);
1002. 
1003.     if(x == 0 && y == 0)	/* map click on player to "rest" command */
1004. 	return '.';
1005. 
1006.     x = xytod(x, y);
1007.     if(mod == CLICK_1) {
1008. 	return (flags.num_pad ? ndir[x] : sdir[x]);
1009.     } else {
1010. 	return (sdir[x] - 'a' + 'A'); /* run command */
1011.     }
1012. }
1013. 
1014. STATIC_OVL char *
1015. parse()
1016. {
1017. #ifdef LINT	/* static char in_line[COLNO]; */
1018. 	char in_line[COLNO];
1019. #else
1020. 	static char in_line[COLNO];
1021. #endif
1022. 	register int foo;
1023. 	boolean prezero = FALSE;
1024. 
1025. 	multi = 0;
1026. 	flags.move = 1;
1027. 	flush_screen(1); /* Flush screen buffer. Put the cursor on the hero. */
1028. 
1029. 	if (!flags.num_pad || (foo = readchar()) == 'n')
1030. 	    for (;;) {
1031. 		foo = readchar();
1032. 		if (foo >= '0' && foo <= '9') {
1033. 		    multi = 10 * multi + foo - '0';
1034. 		    if (multi < 0 || multi > LARGEST_INT) multi = LARGEST_INT;
1035. 		    if (multi > 9) {
1036. 			clear_nhwindow(WIN_MESSAGE);
1037. 			Sprintf(in_line, "Count: %d", multi);
1038. 			pline(in_line);
1039. 			mark_synch();
1040. 		    }
1041. 		    last_multi = multi;
1042. 		    if (!multi && foo == '0') prezero = TRUE;
1043. 		} else break;	/* not a digit */
1044. 	    }
1045. 
1046. 	if (foo == '\033') {   /* esc cancels count (TH) */
1047. 	    clear_nhwindow(WIN_MESSAGE);
1048. 	    multi = last_multi = 0;
1049. # ifdef REDO
1050. 	} else if (foo == DOAGAIN || in_doagain) {
1051. 	    multi = last_multi;
1052. 	} else {
1053. 	    last_multi = multi;
1054. 	    savech(0);	/* reset input queue */
1055. 	    savech((char)foo);
1056. # endif
1057. 	}
1058. 
1059. 	if (multi) {
1060. 	    multi--;
1061. 	    save_cm = in_line;
1062. 	} else {
1063. 	    save_cm = NULL;
1064. 	}
1065. 	in_line[0] = foo;
1066. 	in_line[1] = '\0';
1067. 	if (foo == 'g' || foo == 'G' || (flags.num_pad && foo == '5') ||
1068. 	    foo == 'm' || foo == 'M') {
1069. 	    foo = readchar();
1070. #ifdef REDO
1071. 	    savech((char)foo);
1072. #endif
1073. 	    in_line[1] = foo;
1074. 	    in_line[2] = 0;
1075. 	}
1076. 	clear_nhwindow(WIN_MESSAGE);
1077. 	if (prezero) in_line[0] = '\033';
1078. 	return(in_line);
1079. }
1080. 
1081. #endif /* OVL0 */
1082. #ifdef OVLB
1083. 
1084. #ifdef UNIX
1085. static
1086. void
1087. end_of_input()
1088. {
1089. 	exit_nhwindows("End of input?");
1090. #ifndef NOSAVEONHANGUP
1091. 	if(!hu) {
1092. 	    hu = TRUE;
1093. 	    (void) dosave0();
1094. 	}
1095. #endif
1096. 	clearlocks();
1097. 	terminate(0);
1098. }
1099. #endif
1100. 
1101. #endif /* OVLB */
1102. #ifdef OVL0
1103. 
1104. char
1105. readchar()
1106. {
1107. 	register int sym;
1108. 	int x, y, mod;
1109. 
1110. #ifdef REDO
1111. 	sym = in_doagain ? Getchar() : nh_poskey(&x, &y, &mod);
1112. #else
1113. 	sym = Getchar();
1114. #endif
1115. 
1116. #ifdef UNIX
1117. # ifdef NR_OF_EOFS
1118. 	if (sym == EOF) {
1119. 	    register int cnt = NR_OF_EOFS;
1120. 	  /*
1121. 	   * Some SYSV systems seem to return EOFs for various reasons
1122. 	   * (?like when one hits break or for interrupted systemcalls?),
1123. 	   * and we must see several before we quit.
1124. 	   */
1125. 	    do {
1126. 		clearerr(stdin);	/* omit if clearerr is undefined */
1127. 		sym = Getchar();
1128. 	    } while (--cnt && sym == EOF);
1129. 	}
1130. # endif /* NR_OF_EOFS */
1131. 	if (sym == EOF)
1132. 	    end_of_input();
1133. #endif /* UNIX */
1134. 
1135. 	if(sym == 0) /* click event */
1136. 	    sym = click_to_cmd(x, y, mod);
1137. 	return((char) sym);
1138. }
1139. #endif /* OVL0 */
1140. 
1141. /*cmd.c*/
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