Wikia

Wikihack

Source:NetHack 3.2.0/o init.c

2,032pages on
this wiki
Talk0

Below is the full text to o_init.c from the source code of NetHack 3.2.0. To link to a particular line, write [[NetHack 3.2.0/o_init.c#line123]], for example.

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

The NetHack General Public License applies to screenshots, source code and other content from NetHack.
1.    /*	SCCS Id: @(#)o_init.c	3.2	94/07/10	*/
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 "lev.h"	/* save & restore info */
7.    
8.    static void NDECL(setgemprobs);
9.    static void FDECL(shuffle,(int,int,BOOLEAN_P));
10.   static void NDECL(shuffle_all);
11.   static boolean FDECL(interesting_to_discover,(int));
12.   
13.   
14.   static NEARDATA short disco[NUM_OBJECTS] = DUMMY;
15.   
16.   #ifdef USE_TILES
17.   static void NDECL(shuffle_tiles);
18.   extern short glyph2tile[];	/* from tile.c */
19.   
20.   /* Shuffle tile assignments to match descriptions, so a red potion isn't
21.    * displayed with a blue tile and so on.
22.    *
23.    * Tile assignments are not saved, and shouldn't be so that a game can
24.    * be resumed on an otherwise identical non-tile-using binary, so we have
25.    * to reshuffle the assignments from oc_descr_idx information when a game
26.    * is restored.  So might as well do that the first time instead of writing
27.    * another routine.
28.    */
29.   static void
30.   shuffle_tiles()
31.   {
32.   	int i;
33.   	short tmp_tilemap[NUM_OBJECTS];
34.   
35.   	for (i = 0; i < NUM_OBJECTS; i++)
36.   		tmp_tilemap[i] =
37.   			glyph2tile[objects[i].oc_descr_idx + GLYPH_OBJ_OFF];
38.   
39.   	for (i = 0; i < NUM_OBJECTS; i++)
40.   		glyph2tile[i + GLYPH_OBJ_OFF] = tmp_tilemap[i];
41.   }
42.   #endif	/* USE_TILES */
43.   
44.   static void
45.   setgemprobs()
46.   {
47.   	register int j, first;
48.   	int lev = (ledger_no(&u.uz) > maxledgerno())
49.   				? maxledgerno() : ledger_no(&u.uz);
50.   
51.   	first = bases[GEM_CLASS];
52.   
53.   	for(j = 0; j < 9-lev/3; j++)
54.   		objects[first+j].oc_prob = 0;
55.   	first += j;
56.   	if (first > LAST_GEM || objects[first].oc_class != GEM_CLASS ||
57.   	    OBJ_NAME(objects[first]) == (char *)0) {
58.   		raw_printf("Not enough gems? - first=%d j=%d LAST_GEM=%d",
59.   			first, j, LAST_GEM);
60.   		wait_synch();
61.   	    }
62.   	for (j = first; j <= LAST_GEM; j++)
63.   		objects[j].oc_prob = (184+j-first)/(LAST_GEM+1-first);
64.   }
65.   
66.   /* shuffle descriptions on objects o_low to o_high */
67.   static void
68.   shuffle(o_low, o_high, domaterial)
69.   	int o_low, o_high;
70.   	boolean domaterial;
71.   {
72.   	int i, j, num_to_shuffle;
73.   	short sw;
74.   #ifdef TEXTCOLOR
75.   	int color;
76.   #endif /* TEXTCOLOR */
77.   
78.   	for (num_to_shuffle = 0, j=o_low; j <= o_high; j++)
79.   		if (!objects[j].oc_name_known) num_to_shuffle++;
80.   	if (num_to_shuffle < 2) return;
81.   
82.   	for (j=o_low; j <= o_high; j++) {
83.   		if (objects[j].oc_name_known) continue;
84.   		do
85.   			i = j + rn2(o_high-j+1);
86.   		while (objects[i].oc_name_known);
87.   		sw = objects[j].oc_descr_idx;
88.   		objects[j].oc_descr_idx = objects[i].oc_descr_idx;
89.   		objects[i].oc_descr_idx = sw;
90.   		sw = objects[j].oc_tough;
91.   		objects[j].oc_tough = objects[i].oc_tough;
92.   		objects[i].oc_tough = sw;
93.   #ifdef TEXTCOLOR
94.   		color = objects[j].oc_color;
95.   		objects[j].oc_color = objects[i].oc_color;
96.   		objects[i].oc_color = color;
97.   #endif /* TEXTCOLOR */
98.   		/* shuffle material */
99.   		if (domaterial) {
100.  			sw = objects[j].oc_material;
101.  			objects[j].oc_material = objects[i].oc_material;
102.  			objects[i].oc_material = sw;
103.  		}
104.  	}
105.  }
106.  
107.  void
108.  init_objects()
109.  {
110.  register int i, first, last, sum;
111.  register char oclass;
112.  #ifdef TEXTCOLOR
113.  # define COPY_OBJ_DESCR(o_dst,o_src) \
114.  			o_dst.oc_descr_idx = o_src.oc_descr_idx,\
115.  			o_dst.oc_color = o_src.oc_color
116.  #else
117.  # define COPY_OBJ_DESCR(o_dst,o_src) o_dst.oc_descr_idx = o_src.oc_descr_idx
118.  #endif
119.  
120.  	/* bug fix to prevent "initialization error" abort on Intel Xenix.
121.  	 * reported by mikew@semike
122.  	 */
123.  	for (i = 0; i < MAXOCLASSES; i++)
124.  		bases[i] = 0;
125.  	/* initialize object descriptions */
126.  	for (i = 0; i < NUM_OBJECTS; i++)
127.  		objects[i].oc_name_idx = objects[i].oc_descr_idx = i;
128.  	/* init base; if probs given check that they add up to 1000,
129.  	   otherwise compute probs */
130.  	first = 0;
131.  	while( first < NUM_OBJECTS ) {
132.  		oclass = objects[first].oc_class;
133.  		last = first+1;
134.  		while (last < NUM_OBJECTS && objects[last].oc_class == oclass) last++;
135.  		bases[(int)oclass] = first;
136.  
137.  		if (oclass == GEM_CLASS) {
138.  			setgemprobs();
139.  
140.  			if (rn2(2)) { /* change turquoise from green to blue? */
141.  			    COPY_OBJ_DESCR(objects[TURQUOISE],objects[SAPPHIRE]);
142.  			}
143.  			if (rn2(2)) { /* change aquamarine from green to blue? */
144.  			    COPY_OBJ_DESCR(objects[AQUAMARINE],objects[SAPPHIRE]);
145.  			}
146.  			switch (rn2(4)) { /* change fluorite from violet? */
147.  			    case 0:  break;
148.  			    case 1:	/* blue */
149.  				COPY_OBJ_DESCR(objects[FLUORITE],objects[SAPPHIRE]);
150.  				break;
151.  			    case 2:	/* white */
152.  				COPY_OBJ_DESCR(objects[FLUORITE],objects[DIAMOND]);
153.  				break;
154.  			    case 3:	/* green */
155.  				COPY_OBJ_DESCR(objects[FLUORITE],objects[EMERALD]);
156.  				break;
157.  			}
158.  		}
159.  	check:
160.  		sum = 0;
161.  		for(i = first; i < last; i++) sum += objects[i].oc_prob;
162.  		if(sum == 0) {
163.  			for(i = first; i < last; i++)
164.  			    objects[i].oc_prob = (1000+i-first)/(last-first);
165.  			goto check;
166.  		}
167.  		if(sum != 1000)
168.  			error("init-prob error for class %d (%d%%)", oclass, sum);
169.  		first = last;
170.  	}
171.  	/* shuffle descriptions */
172.  	shuffle_all();
173.  #ifdef USE_TILES
174.  	shuffle_tiles();
175.  #endif
176.  }
177.  
178.  static void
179.  shuffle_all()
180.  {
181.  	int first, last, oclass;
182.  
183.  	for (oclass = 1; oclass < MAXOCLASSES; oclass++) {
184.  		first = bases[oclass];
185.  		last = first+1;
186.  		while (last < NUM_OBJECTS && objects[last].oc_class == oclass)
187.  			last++;
188.  
189.  		if (OBJ_DESCR(objects[first]) != (char *)0 &&
190.  				oclass != TOOL_CLASS &&
191.  				oclass != WEAPON_CLASS &&
192.  				oclass != ARMOR_CLASS &&
193.  				oclass != GEM_CLASS) {
194.  			int j = last-1;
195.  
196.  			if (oclass == POTION_CLASS)
197.  			    j -= 1;  /* only water has a fixed description */
198.  			else if (oclass == AMULET_CLASS ||
199.  				 oclass == SCROLL_CLASS ||
200.  				 oclass == SPBOOK_CLASS) {
201.  			    while (!objects[j].oc_magic || objects[j].oc_unique)
202.  				j--;
203.  			}
204.  
205.  			/* non-magical amulets, scrolls, and spellbooks
206.  			 * (ex. imitation Amulets, blank, scrolls of mail)
207.  			 * and one-of-a-kind magical artifacts at the end of
208.  			 * their class in objects[] have fixed descriptions.
209.  			 */
210.  			shuffle(first, j, TRUE);
211.  		}
212.  	}
213.  
214.  	/* shuffle the helmets */
215.  	shuffle(HELMET, HELM_OF_TELEPATHY, FALSE);
216.  
217.  	/* shuffle the gloves */
218.  	shuffle(LEATHER_GLOVES, GAUNTLETS_OF_DEXTERITY, FALSE);
219.  
220.  	/* shuffle the cloaks */
221.  	shuffle(CLOAK_OF_PROTECTION, CLOAK_OF_DISPLACEMENT, FALSE);
222.  
223.  	/* shuffle the boots [if they change, update find_skates() below] */
224.  	shuffle(SPEED_BOOTS, LEVITATION_BOOTS, FALSE);
225.  }
226.  
227.  /* find the object index for snow boots; used [once] by slippery ice code */
228.  int
229.  find_skates()
230.  {
231.      register int i;
232.      register const char *s;
233.  
234.      for (i = SPEED_BOOTS; i <= LEVITATION_BOOTS; i++)
235.  	if ((s = OBJ_DESCR(objects[i])) != 0 && !strcmp(s, "snow boots"))
236.  	    return i;
237.  
238.      impossible("snow boots not found?");
239.      return -1;	/* not 0, or caller would try again each move */
240.  }
241.  
242.  void
243.  oinit()			/* level dependent initialization */
244.  {
245.  	setgemprobs();
246.  }
247.  
248.  void
249.  savenames(fd, mode)
250.  int fd, mode;
251.  {
252.  	register int i;
253.  	unsigned int len;
254.  
255.  	if (perform_bwrite(mode)) {
256.  	    bwrite(fd, (genericptr_t)bases, sizeof bases);
257.  	    bwrite(fd, (genericptr_t)disco, sizeof disco);
258.  	    bwrite(fd, (genericptr_t)objects,
259.  		   sizeof(struct objclass) * NUM_OBJECTS);
260.  	}
261.  	/* as long as we use only one version of Hack we
262.  	   need not save oc_name and oc_descr, but we must save
263.  	   oc_uname for all objects */
264.  	for (i = 0; i < NUM_OBJECTS; i++)
265.  	    if (objects[i].oc_uname) {
266.  		if (perform_bwrite(mode)) {
267.  		    len = strlen(objects[i].oc_uname)+1;
268.  		    bwrite(fd, (genericptr_t)&len, sizeof len);
269.  		    bwrite(fd, (genericptr_t)objects[i].oc_uname, len);
270.  		}
271.  		if (release_data(mode)) {
272.  		    free((genericptr_t)objects[i].oc_uname);
273.  		    objects[i].oc_uname = 0;
274.  		}
275.  	    }
276.  }
277.  
278.  void
279.  restnames(fd)
280.  register int fd;
281.  {
282.  	register int i;
283.  	unsigned int len;
284.  
285.  	mread(fd, (genericptr_t) bases, sizeof bases);
286.  	mread(fd, (genericptr_t) disco, sizeof disco);
287.  	mread(fd, (genericptr_t) objects, sizeof(struct objclass) * NUM_OBJECTS);
288.  	for (i = 0; i < NUM_OBJECTS; i++)
289.  	    if (objects[i].oc_uname) {
290.  		mread(fd, (genericptr_t) &len, sizeof len);
291.  		objects[i].oc_uname = (char *) alloc(len);
292.  		mread(fd, (genericptr_t)objects[i].oc_uname, len);
293.  	    }
294.  #ifdef USE_TILES
295.  	shuffle_tiles();
296.  #endif
297.  }
298.  
299.  void
300.  discover_object(oindx, mark_as_known)
301.  register int oindx;
302.  boolean mark_as_known;
303.  {
304.      if (!objects[oindx].oc_name_known) {
305.  	register int dindx, acls = objects[oindx].oc_class;
306.  
307.  	/* Loop thru disco[] 'til we find the target (which may have been
308.  	   uname'd) or the next open slot; one or the other will be found
309.  	   before we reach the next class...
310.  	 */
311.  	for (dindx = bases[acls]; disco[dindx] != 0; dindx++)
312.  	    if (disco[dindx] == oindx) break;
313.  	disco[dindx] = oindx;
314.  
315.  	if (mark_as_known) {
316.  	    objects[oindx].oc_name_known = 1;
317.  	    exercise(A_WIS, TRUE);
318.  	}
319.      }
320.  }
321.  
322.  /* if a class name has been cleared, we may need to purge it from disco[] */
323.  void
324.  undiscover_object(oindx)
325.  register int oindx;
326.  {
327.      if (!objects[oindx].oc_name_known) {
328.  	register int dindx, acls = objects[oindx].oc_class;
329.  	register boolean found = FALSE;
330.  
331.  	/* find the object; shift those behind it forward one slot */
332.  	for (dindx = bases[acls];
333.  	      dindx < NUM_OBJECTS && disco[dindx] != 0
334.  		&& objects[dindx].oc_class == acls; dindx++)
335.  	    if (found)
336.  		disco[dindx-1] = disco[dindx];
337.  	    else if (disco[dindx] == oindx)
338.  		found = TRUE;
339.  
340.  	/* clear last slot */
341.  	if (found) disco[dindx-1] = 0;
342.  	else impossible("named object not in disco");
343.      }
344.  }
345.  
346.  static boolean
347.  interesting_to_discover(i)
348.  register int i;
349.  {
350.      if (objects[i].oc_pre_discovered) return FALSE;
351.      return((boolean)(objects[i].oc_uname != (char *)0 ||
352.  	    (objects[i].oc_name_known && OBJ_DESCR(objects[i]) != (char *)0)));
353.  }
354.  
355.  int
356.  dodiscovered()				/* free after Robert Viduya */
357.  {
358.      register int i, dis;
359.      int	ct = 0;
360.      char *s, oclass, prev_class, classes[MAXOCLASSES];
361.      winid tmpwin;
362.  
363.      tmpwin = create_nhwindow(NHW_MENU);
364.      putstr(tmpwin, 0, "Discoveries");
365.      putstr(tmpwin, 0, "");
366.  
367.      /* several classes are omitted from packorder; one is of interest here */
368.      Strcpy(classes, flags.inv_order);
369.      if (!index(classes, VENOM_CLASS)) {
370.  	s = eos(classes);
371.  	*s++ = VENOM_CLASS;
372.  	*s = '\0';
373.      }
374.  
375.      for (s = classes; *s; s++) {
376.  	oclass = *s;
377.  	prev_class = oclass + 1;	/* forced different from oclass */
378.  	for (i = bases[(int)oclass];
379.  	     i < NUM_OBJECTS && objects[i].oc_class == oclass; i++) {
380.  	    if ((dis = disco[i]) && interesting_to_discover(dis)) {
381.  		ct++;
382.  		if (oclass != prev_class) {
383.  		    putstr(tmpwin, ATR_INVERSE, let_to_name(oclass, FALSE));
384.  		    prev_class = oclass;
385.  		}
386.  		putstr(tmpwin, 0, typename(dis));
387.  	    }
388.  	}
389.      }
390.      if (ct == 0) {
391.  	You("haven't discovered anything yet...");
392.      } else
393.  	display_nhwindow(tmpwin, TRUE);
394.      destroy_nhwindow(tmpwin);
395.  
396.      return 0;
397.  }
398.  
399.  /*o_init.c*/

Around Wikia's network

Random Wiki