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Below is the full text to src/quest.c from NetHack 3.4.3. To link to a particular line, write [[quest.c#line123]], for example.

Top of file Edit

1.    /*	SCCS Id: @(#)quest.c	3.4	2000/05/05	*/
2.    /*	Copyright 1991, M. Stephenson		  */
3.    /* NetHack may be freely redistributed.  See license for details. */
4.    
The NetHack General Public License applies to screenshots, source code and other content from NetHack.
5.    #include "hack.h"
6.    
7.    /*  quest dungeon branch routines. */
8.    
9.    #include "quest.h"
10.   #include "qtext.h"
11.   
12.   #define Not_firsttime	(on_level(&u.uz0, &u.uz))
13.   #define Qstat(x)	(quest_status.x)
14.   
15.   STATIC_DCL void NDECL(on_start);
16.   STATIC_DCL void NDECL(on_locate);
17.   STATIC_DCL void NDECL(on_goal);
18.   STATIC_DCL boolean NDECL(not_capable);
19.   STATIC_DCL int FDECL(is_pure, (BOOLEAN_P));
20.   STATIC_DCL void FDECL(expulsion, (BOOLEAN_P));
21.   STATIC_DCL void NDECL(chat_with_leader);
22.   STATIC_DCL void NDECL(chat_with_nemesis);
23.   STATIC_DCL void NDECL(chat_with_guardian);
24.   STATIC_DCL void FDECL(prisoner_speaks, (struct monst *));
25.   
26.   

on_start Edit

27.   STATIC_OVL void
28.   on_start()
29.   {
30.     if(!Qstat(first_start)) {
31.       qt_pager(QT_FIRSTTIME);
32.       Qstat(first_start) = TRUE;
33.     } else if((u.uz0.dnum != u.uz.dnum) || (u.uz0.dlevel < u.uz.dlevel)) {
34.       if(Qstat(not_ready) <= 2) qt_pager(QT_NEXTTIME);
35.       else	qt_pager(QT_OTHERTIME);
36.     }
37.   }
38.   

on_locate Edit

39.   STATIC_OVL void
40.   on_locate()
41.   {
42.     if(!Qstat(first_locate)) {
43.       qt_pager(QT_FIRSTLOCATE);
44.       Qstat(first_locate) = TRUE;
45.     } else if(u.uz0.dlevel < u.uz.dlevel && !Qstat(killed_nemesis))
46.   	qt_pager(QT_NEXTLOCATE);
47.   }
48.   

on_goal Edit

49.   STATIC_OVL void
50.   on_goal()
51.   {
52.     if (Qstat(killed_nemesis)) {
53.       return;
54.     } else if (!Qstat(made_goal)) {
55.       qt_pager(QT_FIRSTGOAL);
56.       Qstat(made_goal) = 1;
57.     } else {
58.       qt_pager(QT_NEXTGOAL);
59.       if(Qstat(made_goal) < 7) Qstat(made_goal)++;
60.     }
61.   }
62.   

onquest Edit

63.   void
64.   onquest()
65.   {
66.   	if(u.uevent.qcompleted || Not_firsttime) return;
67.   	if(!Is_special(&u.uz)) return;
68.   
69.   	if(Is_qstart(&u.uz)) on_start();
70.   	else if(Is_qlocate(&u.uz) && u.uz.dlevel > u.uz0.dlevel) on_locate();
71.   	else if(Is_nemesis(&u.uz)) on_goal();
72.   	return;
73.   }
74.   

nemdead Edit

75.   void
76.   nemdead()
77.   {
78.   	if(!Qstat(killed_nemesis)) {
79.   	    Qstat(killed_nemesis) = TRUE;
80.   	    qt_pager(QT_KILLEDNEM);
81.   	}
82.   }
83.   

artitouch Edit

84.   void
85.   artitouch()
86.   {
87.   	if(!Qstat(touched_artifact)) {
88.   	    Qstat(touched_artifact) = TRUE;
89.   	    qt_pager(QT_GOTIT);
90.   	    exercise(A_WIS, TRUE);
91.   	}
92.   }
93.   

ok_to_quest Edit

94.   /* external hook for do.c (level change check) */
95.   boolean
96.   ok_to_quest()
97.   {
98.   	return((boolean)((Qstat(got_quest) || Qstat(got_thanks)))
99.   			&& (is_pure(FALSE) > 0));
100.  }
101.  

This function determines if you are allowed to walk down the stairs or level teleport from the quest home level, but does not govern branchporting. Qstat(got_quest) means if your quest leader has irrevocably given you permission to proceed, and is_pure(FALSE) is an alignment check. Qstat(got_thanks) is only relevant if you wish for your own quest artifact in wizard mode and then throw it to your quest leader without going through the usual dialog with him. It is set in finish_quest(). (The dialog would set Qstat(cheater), but that doesn't seem to be referenced anywhere else.)

not_capable Edit

102.  STATIC_OVL boolean
103.  not_capable()
104.  {
105.  	return((boolean)(u.ulevel < MIN_QUEST_LEVEL));
106.  }
107.  

is_pure Edit

108.  STATIC_OVL int
109.  is_pure(talk)
110.  boolean talk;
111.  {
112.      int purity;
113.      aligntyp original_alignment = u.ualignbase[A_ORIGINAL];
114.  
115.  #ifdef WIZARD
116.      if (wizard && talk) {
117.  	if (u.ualign.type != original_alignment) {
118.  	    You("are currently %s instead of %s.",
119.  		align_str(u.ualign.type), align_str(original_alignment));
120.  	} else if (u.ualignbase[A_CURRENT] != original_alignment) {
121.  	    You("have converted.");
122.  	} else if (u.ualign.record < MIN_QUEST_ALIGN) {
123.  	    You("are currently %d and require %d.",
124.  		u.ualign.record, MIN_QUEST_ALIGN);
125.  	    if (yn_function("adjust?", (char *)0, 'y') == 'y')
126.  		u.ualign.record = MIN_QUEST_ALIGN;
127.  	}
128.      }
129.  #endif
130.      purity = (u.ualign.record >= MIN_QUEST_ALIGN &&
131.  	      u.ualign.type == original_alignment &&
132.  	      u.ualignbase[A_CURRENT] == original_alignment) ?  1 :
133.  	     (u.ualignbase[A_CURRENT] != original_alignment) ? -1 : 0;
134.      return purity;
135.  }
136.  

expulsion Edit

137.  /*
138.   * Expell the player to the stairs on the parent of the quest dungeon.
139.   *
140.   * This assumes that the hero is currently _in_ the quest dungeon and that
141.   * there is a single branch to and from it.
142.   */
143.  STATIC_OVL void
144.  expulsion(seal)
145.  boolean seal;
146.  {
147.      branch *br;
148.      d_level *dest;
149.      struct trap *t;
150.      int portal_flag;
151.  
152.      br = dungeon_branch("The Quest");
153.      dest = (br->end1.dnum == u.uz.dnum) ? &br->end2 : &br->end1;
154.      portal_flag = u.uevent.qexpelled ? 0 :	/* returned via artifact? */
155.  		  !seal ? 1 : -1;
156.      schedule_goto(dest, FALSE, FALSE, portal_flag, (char *)0, (char *)0);
157.      if (seal) {	/* remove the portal to the quest - sealing it off */
158.  	int reexpelled = u.uevent.qexpelled;
159.  	u.uevent.qexpelled = 1;
160.  	/* Delete the near portal now; the far (main dungeon side)
161.  	   portal will be deleted as part of arrival on that level.
162.  	   If monster movement is in progress, any who haven't moved
163.  	   yet will now miss out on a chance to wander through it... */
164.  	for (t = ftrap; t; t = t->ntrap)
165.  	    if (t->ttyp == MAGIC_PORTAL) break;
166.  	if (t) deltrap(t);	/* (display might be briefly out of sync) */
167.  	else if (!reexpelled) impossible("quest portal already gone?");
168.      }
169.  }
170.  

finish_quest Edit

171.  /* Either you've returned to quest leader while carrying the quest
172.     artifact or you've just thrown it to/at him or her.  If quest
173.     completion text hasn't been given yet, give it now.  Otherwise
174.     give another message about the character keeping the artifact
175.     and using the magic portal to return to the dungeon. */
176.  void
177.  finish_quest(obj)
178.  struct obj *obj;	/* quest artifact; possibly null if carrying Amulet */
179.  {
180.  	struct obj *otmp;
181.  
182.  	if (u.uhave.amulet) {	/* unlikely but not impossible */
183.  	    qt_pager(QT_HASAMULET);
184.  	    /* leader IDs the real amulet but ignores any fakes */
185.  	    if ((otmp = carrying(AMULET_OF_YENDOR)) != 0)
186.  		fully_identify_obj(otmp);
187.  	} else {
188.  	    qt_pager(!Qstat(got_thanks) ? QT_OFFEREDIT : QT_OFFEREDIT2);
189.  	    /* should have obtained bell during quest;
190.  	       if not, suggest returning for it now */
191.  	    if ((otmp = carrying(BELL_OF_OPENING)) == 0)
192.  		com_pager(5);
193.  	}
194.  	Qstat(got_thanks) = TRUE;
195.  
196.  	if (obj) {
197.  	    u.uevent.qcompleted = 1;	/* you did it! */
198.  	    /* behave as if leader imparts sufficient info about the
199.  	       quest artifact */
200.  	    fully_identify_obj(obj);
201.  	    update_inventory();
202.  	}
203.  }
204.  

chat_with_leader Edit

205.  STATIC_OVL void
206.  chat_with_leader()
207.  {
208.  /*	Rule 0:	Cheater checks.					*/
209.  	if(u.uhave.questart && !Qstat(met_nemesis))
210.  	    Qstat(cheater) = TRUE;
211.  
212.  /*	It is possible for you to get the amulet without completing
213.   *	the quest.  If so, try to induce the player to quest.
214.   */
215.  	if(Qstat(got_thanks)) {
216.  /*	Rule 1:	You've gone back with/without the amulet.	*/
217.  	    if(u.uhave.amulet)	finish_quest((struct obj *)0);
218.  
219.  /*	Rule 2:	You've gone back before going for the amulet.	*/
220.  	    else		qt_pager(QT_POSTHANKS);
221.  	}
222.  
223.  /*	Rule 3: You've got the artifact and are back to return it. */
224.  	  else if(u.uhave.questart) {
225.  	    struct obj *otmp;
226.  
227.  	    for (otmp = invent; otmp; otmp = otmp->nobj)
228.  		if (is_quest_artifact(otmp)) break;
229.  
230.  	    finish_quest(otmp);
231.  
232.  /*	Rule 4: You haven't got the artifact yet.	*/
233.  	} else if(Qstat(got_quest)) {
234.  	    qt_pager(rn1(10, QT_ENCOURAGE));
235.  
236.  /*	Rule 5: You aren't yet acceptable - or are you? */
237.  	} else {
238.  	  if(!Qstat(met_leader)) {
239.  	    qt_pager(QT_FIRSTLEADER);
240.  	    Qstat(met_leader) = TRUE;
241.  	    Qstat(not_ready) = 0;
242.  	  } else qt_pager(QT_NEXTLEADER);
243.  	  /* the quest leader might have passed through the portal into
244.  	     the regular dungeon; none of the remaining make sense there */
245.  	  if (!on_level(&u.uz, &qstart_level)) return;
246.  
247.  	  if(not_capable()) {
248.  	    qt_pager(QT_BADLEVEL);
249.  	    exercise(A_WIS, TRUE);
250.  	    expulsion(FALSE);
251.  	  } else if(is_pure(TRUE) < 0) {
252.  	    com_pager(QT_BANISHED);
253.  	    expulsion(TRUE);
254.  	  } else if(is_pure(TRUE) == 0) {
255.  	    qt_pager(QT_BADALIGN);
256.  	    if(Qstat(not_ready) == MAX_QUEST_TRIES) {
257.  	      qt_pager(QT_LASTLEADER);
258.  	      expulsion(TRUE);
259.  	    } else {
260.  	      Qstat(not_ready)++;
261.  	      exercise(A_WIS, TRUE);
262.  	      expulsion(FALSE);
263.  	    }
264.  	  } else {	/* You are worthy! */
265.  	    qt_pager(QT_ASSIGNQUEST);
266.  	    exercise(A_WIS, TRUE);
267.  	    Qstat(got_quest) = TRUE;
268.  	  }
269.  	}
270.  }
271.  

leader_speaks Edit

272.  void
273.  leader_speaks(mtmp)
274.  	register struct monst *mtmp;
275.  {
276.  	/* maybe you attacked leader? */
277.  	if(!mtmp->mpeaceful) {
278.  		Qstat(pissed_off) = TRUE;
279.  		mtmp->mstrategy &= ~STRAT_WAITMASK;	/* end the inaction */
280.  	}
281.  	/* the quest leader might have passed through the portal into the
282.  	   regular dungeon; if so, mustn't perform "backwards expulsion" */
283.  	if (!on_level(&u.uz, &qstart_level)) return;
284.  
285.  	if(Qstat(pissed_off)) {
286.  	  qt_pager(QT_LASTLEADER);
287.  	  expulsion(TRUE);
288.  	} else chat_with_leader();
289.  }
290.  

chat_with_nemesis Edit

291.  STATIC_OVL void
292.  chat_with_nemesis()
293.  {
294.  /*	The nemesis will do most of the talking, but... */
295.  	qt_pager(rn1(10, QT_DISCOURAGE));
296.  	if(!Qstat(met_nemesis)) Qstat(met_nemesis++);
297.  }
298.  

nemesis_speaks Edit

299.  void
300.  nemesis_speaks()
301.  {
302.  	if(!Qstat(in_battle)) {
303.  	  if(u.uhave.questart) qt_pager(QT_NEMWANTSIT);
304.  	  else if(Qstat(made_goal) == 1 || !Qstat(met_nemesis))
305.  	      qt_pager(QT_FIRSTNEMESIS);
306.  	  else if(Qstat(made_goal) < 4) qt_pager(QT_NEXTNEMESIS);
307.  	  else if(Qstat(made_goal) < 7) qt_pager(QT_OTHERNEMESIS);
308.  	  else if(!rn2(5))	qt_pager(rn1(10, QT_DISCOURAGE));
309.  	  if(Qstat(made_goal) < 7) Qstat(made_goal)++;
310.  	  Qstat(met_nemesis) = TRUE;
311.  	} else /* he will spit out random maledictions */
312.  	  if(!rn2(5))	qt_pager(rn1(10, QT_DISCOURAGE));
313.  }
314.  

chat_with_guardian Edit

315.  STATIC_OVL void
316.  chat_with_guardian()
317.  {
318.  /*	These guys/gals really don't have much to say... */
319.  	if (u.uhave.questart && Qstat(killed_nemesis))
320.  	    qt_pager(rn1(5, QT_GUARDTALK2));
321.  	else
322.  	    qt_pager(rn1(5, QT_GUARDTALK));
323.  }
324.  

prisoner_speaks Edit

325.  STATIC_OVL void
326.  prisoner_speaks (mtmp)
327.  	register struct monst *mtmp;
328.  {
329.  	if (mtmp->data == &mons[PM_PRISONER] &&
330.  			(mtmp->mstrategy & STRAT_WAITMASK)) {
331.  	    /* Awaken the prisoner */
332.  	    if (canseemon(mtmp))
333.  	    	pline("%s speaks:", Monnam(mtmp));
334.  	    verbalize("I'm finally free!");
335.  	    mtmp->mstrategy &= ~STRAT_WAITMASK;
336.  	    mtmp->mpeaceful = 1;
337.  
338.  	    /* Your god is happy... */
339.  	    adjalign(3);
340.  
341.  		/* ...But the guards are not */
342.  	    (void) angry_guards(FALSE);
343.  	}
344.  	return;
345.  }
346.  

quest_chat Edit

347.  void
348.  quest_chat(mtmp)
349.  	register struct monst *mtmp;
350.  {
351.      if (mtmp->m_id == Qstat(leader_m_id)) {
352.  	chat_with_leader();
353.  	return;
354.      }
355.      switch(mtmp->data->msound) {
356.  	    case MS_NEMESIS:	chat_with_nemesis(); break;
357.  	    case MS_GUARDIAN:	chat_with_guardian(); break;
358.  	    default:	impossible("quest_chat: Unknown quest character %s.",
359.  				   mon_nam(mtmp));
360.  	}
361.  }
362.  

quest_talk Edit

363.  void
364.  quest_talk(mtmp)
365.  	register struct monst *mtmp;
366.  {
367.      if (mtmp->m_id == Qstat(leader_m_id)) {
368.  	leader_speaks(mtmp);
369.  	return;
370.      }
371.      switch(mtmp->data->msound) {
372.  	    case MS_NEMESIS:	nemesis_speaks(); break;
373.  	    case MS_DJINNI:	prisoner_speaks(mtmp); break;
374.  	    default:		break;
375.  	}
376.  }
377.  

quest_stat_check Edit

378.  void
379.  quest_stat_check(mtmp)
380.  	struct monst *mtmp;
381.  {
382.      if(mtmp->data->msound == MS_NEMESIS)
383.  	Qstat(in_battle) = (mtmp->mcanmove && !mtmp->msleeping &&
384.  			    monnear(mtmp, u.ux, u.uy));
385.  }
386.  
387.  /*quest.c*/

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