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divine gift of spell knowledge

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Remove the conduct-specific aspect of receiving spells as prayer boon.
Anyone now has a 25% chance of having the spell directly implanted
into their head, not just characters who have maintained illiterate
conduct.  It can now also restore a forgotten spell or refresh one
that is nearly forgotten.  It still tries to choose a spell which
isn't already known (new: or was known but has been forgotten) but if
it picks one that is known and doesn't need refreshing, a redundant
book will be given, same as the behavior in earlier versions.

The chance for receiving a blank spellbook is higher when that item
is undiscovered.  When given as a prayer reward, make it become
discovered even if hero doesn't read it so that it will be less likely
to be given again.  There's a 1% chance for that auto-discovery to
happen with other bestowed books.  Unlike blank boots, having the book
be discovered doesn't lessen their chance of being repeat gifts.

Minor bug fix:  for a spell implanted from scratch, the book remains
unknown.  That's ok; it's actually more interesting than discovering
a book you haven't seen yet.  But after acquiring and reading the book
you could get "you know <spell> quite well already" and the book would
stay undiscovered even though you were just told what spell it's for.
This commit is contained in:
PatR
2022-03-09 07:06:37 -08:00
parent 0effaf529a
commit e3490743e0
6 changed files with 151 additions and 75 deletions
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5
src/apply.c
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@@ -1,4 +1,4 @@
/* NetHack 3.7 apply.c $NHDT-Date: 1629242800 2021/08/17 23:26:40 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.347 $ */
/* NetHack 3.7 apply.c $NHDT-Date: 1646838388 2022/03/09 15:06:28 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.369 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Robert Patrick Rankin, 2012. */
/* NetHack may be freely redistributed. See license for details. */
@@ -1756,7 +1756,7 @@ jump(int magic) /* 0=Physical, otherwise skill level */
coord cc;
/* attempt "jumping" spell if hero has no innate jumping ability */
if (!magic && !Jumping && known_spell(SPE_JUMPING))
if (!magic && !Jumping && known_spell(SPE_JUMPING) >= spe_Fresh)
return spelleffects(SPE_JUMPING, FALSE);
if (!magic && (nolimbs(g.youmonst.data) || slithy(g.youmonst.data))) {
@@ -1767,6 +1767,7 @@ jump(int magic) /* 0=Physical, otherwise skill level */
} else if (!magic && !Jumping) {
You_cant("jump very far.");
return ECMD_OK;
/* if steed is immobile, can't do physical jump but can do spell one */
} else if (!magic && u.usteed && stucksteed(FALSE)) {
/* stucksteed gave "<steed> won't move" message */