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/* SCCS Id: @(#)o_init.c 3.4 1999/12/09 */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* NetHack may be freely redistributed. See license for details. */
#include "hack.h"
#include "lev.h" /* save & restore info */
STATIC_DCL void FDECL(setgemprobs, (d_level*));
STATIC_DCL void FDECL(shuffle,(int,int,BOOLEAN_P));
STATIC_DCL void NDECL(shuffle_all);
STATIC_DCL boolean FDECL(interesting_to_discover,(int));
static NEARDATA short disco[NUM_OBJECTS] = DUMMY;
#ifdef USE_TILES
STATIC_DCL void NDECL(shuffle_tiles);
extern short glyph2tile[]; /* from tile.c */
/* Shuffle tile assignments to match descriptions, so a red potion isn't
* displayed with a blue tile and so on.
*
* Tile assignments are not saved, and shouldn't be so that a game can
* be resumed on an otherwise identical non-tile-using binary, so we have
* to reshuffle the assignments from oc_descr_idx information when a game
* is restored. So might as well do that the first time instead of writing
* another routine.
*/
STATIC_OVL void
shuffle_tiles()
{
int i;
short tmp_tilemap[NUM_OBJECTS];
for (i = 0; i < NUM_OBJECTS; i++)
tmp_tilemap[i] =
glyph2tile[objects[i].oc_descr_idx + GLYPH_OBJ_OFF];
for (i = 0; i < NUM_OBJECTS; i++)
glyph2tile[i + GLYPH_OBJ_OFF] = tmp_tilemap[i];
}
#endif /* USE_TILES */
STATIC_OVL void
setgemprobs(dlev)
d_level *dlev;
{
int j, first, lev;
if (dlev)
lev = (ledger_no(dlev) > maxledgerno())
? maxledgerno() : ledger_no(dlev);
else
lev = 0;
first = bases[GEM_CLASS];
for(j = 0; j < 9-lev/3; j++)
objects[first+j].oc_prob = 0;
first += j;
if (first > LAST_GEM || objects[first].oc_class != GEM_CLASS ||
OBJ_NAME(objects[first]) == (char *)0) {
raw_printf("Not enough gems? - first=%d j=%d LAST_GEM=%d",
first, j, LAST_GEM);
wait_synch();
}
for (j = first; j <= LAST_GEM; j++)
objects[j].oc_prob = (171+j-first)/(LAST_GEM+1-first);
}
/* shuffle descriptions on objects o_low to o_high */
STATIC_OVL void
shuffle(o_low, o_high, domaterial)
int o_low, o_high;
boolean domaterial;
{
int i, j, num_to_shuffle;
short sw;
int color;
for (num_to_shuffle = 0, j=o_low; j <= o_high; j++)
if (!objects[j].oc_name_known) num_to_shuffle++;
if (num_to_shuffle < 2) return;
for (j=o_low; j <= o_high; j++) {
if (objects[j].oc_name_known) continue;
do
i = j + rn2(o_high-j+1);
while (objects[i].oc_name_known);
sw = objects[j].oc_descr_idx;
objects[j].oc_descr_idx = objects[i].oc_descr_idx;
objects[i].oc_descr_idx = sw;
sw = objects[j].oc_tough;
objects[j].oc_tough = objects[i].oc_tough;
objects[i].oc_tough = sw;
color = objects[j].oc_color;
objects[j].oc_color = objects[i].oc_color;
objects[i].oc_color = color;
/* shuffle material */
if (domaterial) {
sw = objects[j].oc_material;
objects[j].oc_material = objects[i].oc_material;
objects[i].oc_material = sw;
}
}
}
void
init_objects()
{
register int i, first, last, sum;
register char oclass;
#ifdef TEXTCOLOR
# define COPY_OBJ_DESCR(o_dst,o_src) \
o_dst.oc_descr_idx = o_src.oc_descr_idx,\
o_dst.oc_color = o_src.oc_color
#else
# define COPY_OBJ_DESCR(o_dst,o_src) o_dst.oc_descr_idx = o_src.oc_descr_idx
#endif
/* bug fix to prevent "initialization error" abort on Intel Xenix.
* reported by mikew@semike
*/
for (i = 0; i < MAXOCLASSES; i++)
bases[i] = 0;
/* initialize object descriptions */
for (i = 0; i < NUM_OBJECTS; i++)
objects[i].oc_name_idx = objects[i].oc_descr_idx = i;
/* init base; if probs given check that they add up to 1000,
otherwise compute probs */
first = 0;
while( first < NUM_OBJECTS ) {
oclass = objects[first].oc_class;
last = first+1;
while (last < NUM_OBJECTS && objects[last].oc_class == oclass) last++;
bases[(int)oclass] = first;
if (oclass == GEM_CLASS) {
setgemprobs((d_level *)0);
if (rn2(2)) { /* change turquoise from green to blue? */
COPY_OBJ_DESCR(objects[TURQUOISE],objects[SAPPHIRE]);
}
if (rn2(2)) { /* change aquamarine from green to blue? */
COPY_OBJ_DESCR(objects[AQUAMARINE],objects[SAPPHIRE]);
}
switch (rn2(4)) { /* change fluorite from violet? */
case 0: break;
case 1: /* blue */
COPY_OBJ_DESCR(objects[FLUORITE],objects[SAPPHIRE]);
break;
case 2: /* white */
COPY_OBJ_DESCR(objects[FLUORITE],objects[DIAMOND]);
break;
case 3: /* green */
COPY_OBJ_DESCR(objects[FLUORITE],objects[EMERALD]);
break;
}
}
check:
sum = 0;
for(i = first; i < last; i++) sum += objects[i].oc_prob;
if(sum == 0) {
for(i = first; i < last; i++)
objects[i].oc_prob = (1000+i-first)/(last-first);
goto check;
}
if(sum != 1000)
error("init-prob error for class %d (%d%%)", oclass, sum);
first = last;
}
/* shuffle descriptions */
shuffle_all();
#ifdef USE_TILES
shuffle_tiles();
#endif
}
STATIC_OVL void
shuffle_all()
{
int first, last, oclass;
for (oclass = 1; oclass < MAXOCLASSES; oclass++) {
first = bases[oclass];
last = first+1;
while (last < NUM_OBJECTS && objects[last].oc_class == oclass)
last++;
if (OBJ_DESCR(objects[first]) != (char *)0 &&
oclass != TOOL_CLASS &&
oclass != WEAPON_CLASS &&
oclass != ARMOR_CLASS &&
oclass != GEM_CLASS) {
int j = last-1;
if (oclass == POTION_CLASS)
j -= 1; /* only water has a fixed description */
else if (oclass == AMULET_CLASS ||
oclass == SCROLL_CLASS ||
oclass == SPBOOK_CLASS) {
while (!objects[j].oc_magic || objects[j].oc_unique)
j--;
}
/* non-magical amulets, scrolls, and spellbooks
* (ex. imitation Amulets, blank, scrolls of mail)
* and one-of-a-kind magical artifacts at the end of
* their class in objects[] have fixed descriptions.
*/
shuffle(first, j, TRUE);
}
}
/* shuffle the helmets */
shuffle(HELMET, HELM_OF_TELEPATHY, FALSE);
/* shuffle the gloves */
shuffle(LEATHER_GLOVES, GAUNTLETS_OF_DEXTERITY, FALSE);
/* shuffle the cloaks */
shuffle(CLOAK_OF_PROTECTION, CLOAK_OF_DISPLACEMENT, FALSE);
/* shuffle the boots [if they change, update find_skates() below] */
shuffle(SPEED_BOOTS, LEVITATION_BOOTS, FALSE);
}
/* find the object index for snow boots; used [once] by slippery ice code */
int
find_skates()
{
register int i;
register const char *s;
for (i = SPEED_BOOTS; i <= LEVITATION_BOOTS; i++)
if ((s = OBJ_DESCR(objects[i])) != 0 && !strcmp(s, "snow boots"))
return i;
impossible("snow boots not found?");
return -1; /* not 0, or caller would try again each move */
}
void
oinit() /* level dependent initialization */
{
setgemprobs(&u.uz);
}
void
savenames(fd, mode)
FILE* fd;
int mode;
{
register int i;
unsigned int len;
if (perform_bwrite(mode)) {
bwrite(fd, (genericptr_t)bases, sizeof bases);
bwrite(fd, (genericptr_t)disco, sizeof disco);
bwrite(fd, (genericptr_t)objects,
sizeof(struct objclass) * NUM_OBJECTS);
}
/* as long as we use only one version of Hack we
need not save oc_name and oc_descr, but we must save
oc_uname for all objects */
for (i = 0; i < NUM_OBJECTS; i++)
if (objects[i].oc_uname) {
if (perform_bwrite(mode)) {
len = strlen(objects[i].oc_uname)+1;
bwrite(fd, (genericptr_t)&len, sizeof len);
bwrite(fd, (genericptr_t)objects[i].oc_uname, len);
}
if (release_data(mode)) {
free((genericptr_t)objects[i].oc_uname);
objects[i].oc_uname = 0;
}
}
}
void
restnames(fd)
register FILE* fd;
{
register int i;
unsigned int len;
mread(fd, (genericptr_t) bases, sizeof bases);
mread(fd, (genericptr_t) disco, sizeof disco);
mread(fd, (genericptr_t) objects, sizeof(struct objclass) * NUM_OBJECTS);
for (i = 0; i < NUM_OBJECTS; i++)
if (objects[i].oc_uname) {
mread(fd, (genericptr_t) &len, sizeof len);
objects[i].oc_uname = (char *) alloc(len);
mread(fd, (genericptr_t)objects[i].oc_uname, len);
}
#ifdef USE_TILES
shuffle_tiles();
#endif
}
void
discover_object(oindx, mark_as_known, credit_hero)
register int oindx;
boolean mark_as_known;
boolean credit_hero;
{
if (!objects[oindx].oc_name_known) {
register int dindx, acls = objects[oindx].oc_class;
/* Loop thru disco[] 'til we find the target (which may have been
uname'd) or the next open slot; one or the other will be found
before we reach the next class...
*/
for (dindx = bases[acls]; disco[dindx] != 0; dindx++)
if (disco[dindx] == oindx) break;
disco[dindx] = oindx;
if (mark_as_known) {
objects[oindx].oc_name_known = 1;
if (credit_hero) exercise(A_WIS, TRUE);
}
if (moves > 1L) update_inventory();
}
}
/* if a class name has been cleared, we may need to purge it from disco[] */
void
undiscover_object(oindx)
register int oindx;
{
if (!objects[oindx].oc_name_known) {
register int dindx, acls = objects[oindx].oc_class;
register boolean found = FALSE;
/* find the object; shift those behind it forward one slot */
for (dindx = bases[acls];
dindx < NUM_OBJECTS && disco[dindx] != 0
&& objects[dindx].oc_class == acls; dindx++)
if (found)
disco[dindx-1] = disco[dindx];
else if (disco[dindx] == oindx)
found = TRUE;
/* clear last slot */
if (found) disco[dindx-1] = 0;
else impossible("named object not in disco");
update_inventory();
}
}
STATIC_OVL boolean
interesting_to_discover(i)
register int i;
{
/* Pre-discovered objects are now printed with a '*' */
return((boolean)(objects[i].oc_uname != (char *)0 ||
(objects[i].oc_name_known && OBJ_DESCR(objects[i]) != (char *)0)));
}
/* items that should stand out once they're known */
static short uniq_objs[] = {
AMULET_OF_YENDOR,
SPE_BOOK_OF_THE_DEAD,
CANDELABRUM_OF_INVOCATION,
BELL_OF_OPENING,
};
int
dodiscovered() /* free after Robert Viduya */
{
register int i, dis;
int ct = 0;
char *s, oclass, prev_class, classes[MAXOCLASSES];
winid tmpwin;
char buf[BUFSZ];
tmpwin = create_nhwindow(NHW_MENU);
putstr(tmpwin, 0, "Discoveries");
putstr(tmpwin, 0, "");
/* gather "unique objects" into a pseudo-class; note that they'll
also be displayed individually within their regular class */
for (i = dis = 0; i < SIZE(uniq_objs); i++)
if (objects[uniq_objs[i]].oc_name_known) {
if (!dis++)
putstr(tmpwin, iflags.menu_headings, "Unique Items");
Sprintf(buf, " %s", OBJ_NAME(objects[uniq_objs[i]]));
putstr(tmpwin, 0, buf);
++ct;
}
/* display any known artifacts as another pseudo-class */
ct += disp_artifact_discoveries(tmpwin);
/* several classes are omitted from packorder; one is of interest here */
Strcpy(classes, flags.inv_order);
if (!index(classes, VENOM_CLASS)) {
s = eos(classes);
*s++ = VENOM_CLASS;
*s = '\0';
}
for (s = classes; *s; s++) {
oclass = *s;
prev_class = oclass + 1; /* forced different from oclass */
for (i = bases[(int)oclass];
i < NUM_OBJECTS && objects[i].oc_class == oclass; i++) {
if ((dis = disco[i]) && interesting_to_discover(dis)) {
ct++;
if (oclass != prev_class) {
putstr(tmpwin, iflags.menu_headings, let_to_name(oclass, FALSE));
prev_class = oclass;
}
Sprintf(buf, "%s %s",(objects[dis].oc_pre_discovered ? "*" : " "),
obj_typename(dis));
putstr(tmpwin, 0, buf);
}
}
}
if (ct == 0) {
You("haven't discovered anything yet...");
} else
display_nhwindow(tmpwin, TRUE);
destroy_nhwindow(tmpwin);
return 0;
}
/*o_init.c*/