Pull request by elunna with assistance by entrez tried to fix up
wand of striking discovery when the wand is zapped by a monster.
The fix didn't match the intended behavior (which may or may not be
the desired behavior...), so this skips the code in the pull request.
[I can't post comments on github anymore since I declined to switch
to their 2-factor authentication. But I can still read submissions
without logging in.]
This also tries to fix a couple of inconsistencies between zapping
by the hero versus by a monster. If the zap "boinged" :-) due to
target's magic resistance, zap by hero didn't discover the wand but
zap by monster did. Conversely, a zap by the hero that reached a
target and missed did discover it but one by a monster did not.
Now a zap of not-yet-discovered wand of striking by the hero which
hits, whether or not the hit gets resisted, will become discovered
provided that the spot where target is hit can be seen (the target
itself need not be), and one which misses or which can't be seen
hitting something will no longer be.
Supersedes #1223Closes#1223
Recharge only handles items carried by hero.
I don't think it really matters that we just skip it, but leave
a FIXME in the code if anyone has enough energy to improve this later.
Fallout from the unified item destruction.
Note: Original change is from xNetHack by copperwater <aosdict@gmail.com>,
but this commit comes from HACKEM-MUCHE by Erik Lunna, with
some minor code formatting.
From xNetHack commit a0a6103bea:
'The original goal: nerf item destruction using a method I initially
proposed for SpliceHack, in which the number of items subject to
damage from any single source is limited by the amount of damage the
effect caused. The intent was to be more fair all around and prevent
aggravating situations where, for instance, a chest shock trap zaps
you for 4 damage and immediately ten of your rings and wands blow up.
Problem 1: no easy way to limit the items destroyed without biasing
heavily towards the start of the invent chain. The old code was able
to get away without bias by just indiscriminately destroying
everything eligible with a 1/3 chance. Here, I had to introduce
reservoir sampling in a somewhat more complex form than I've applied
it elsewhere, since there are a pool of potential items.
Problem 2: destroy_item no longer worked remotely like destroy_mitem,
which still destroyed 1/3 of items indiscriminately. Commence the
process of squishing them into one function that handles both the
player and monsters. (Which required making a lot of adjustments to
destroy_one_item, now named maybe_destroy_item, on nits such as
messaging and when to negate damage. An annoying consequence of the
merge is that in the player case, their HP is deducted and they can
be killed directly, but for monsters they need to add up the
destruction damage and return it.)
Unifying destroy_item and destroy_mitem has some advantages: in
addition to the obvious code duplication removal, it ensures monsters
now take the same damage as players for destruction (previously they
took a piddly 1 damage per destroyed item). Now when you hit
something with Mjollnir and their coveted wand of death breaks apart
and explodes, you at least get the satisfaction of knowing they took
the standard amount of damage from it. Monsters also now get
symmetry with players in having extrinsic elemental resistance
protect them from item destruction, and damage negation from item
destruction if they were appropriately resistant.
Problem 3: a lot of callers didn't preserve the "amount of incoming
damage" that this refactor relies on. E.g. if the defender resisted
that element, the local dmg variable would be set to 0. So I had to
do some wrangling with callers to save that original damage
value. The rule of thumb is: all *incoming* damage counts. So that
includes the player's spellcasting bonus if applicable, but not
things like half damage, negation due to resistance, or extra damage
due to being vulnerable to cold/fire.
Then I figured, while I'm here let's get rid of all those silly cases
where destroy_items is called multiple times for various different
object classes, and cut the object class parameter out of it. This
has a few minor effects:
- Places where different object classes previously rolled
independently for destruction to happen at all now roll
once. (Which, by my calculation, generally means less incidences of
destruction - a fire attack now won't have three separate chances
to hit your scrolls, potions, and spellbooks. On the flip side, a
lucky roll will no longer save an entire object class in your
inventory.)
- Callers can no longer specify different probabilities for
destroying different object classes. The only place this was really
used was to call destroy_item with a slightly lower probability on
SPBOOK_CLASS. With the nerf in this commit, less of them ought to
be destroyed anyway.
- A very edge case of where explosion-vs-monster damage was totted up
differently for golems, which could result in differences of a hit
point here or there.
- All object classes being processed in one go means that less items
are destroyed than would be if they were still processed
independently. This is not really visible compared to the old
baseline of just destroying 33% of everything, but would be a
marked difference versus a copy of the game that still called
destroy_items separately for different object classes. To
compensate, I adjusted my planned damage-to-destruction-limit
scaling factor down from 8 to 5.
Not done: merging in ignite_items(), though that would probably be
really easy now.'
Notes from porting from xNetHack:
- It might be necessary to reexamine at all the conditional checks for
calling destroy_items. Because item destruction is much more
restrained and uses the actual damage from an effect, we might now
need to check 'if (!rn2(3))' and similar in all the places item
destruction occurs.
Reported by elunna: a poison gas breath attack that was reflected
by the target still left that target enveloped in a poison gas cloud.
This makes the gas trail not extend to the target if the attack hits
and is reflected. But if the attack misses then the cloud does reach
the target, which seems weird to me. However, being in the cloud is
a separate event that isn't deterred by reflection.
Closes#1204
Update some potential weight issues. Eggs won't hatch when in
containers so they weren't affected but add some bulletproofing.
Corpse revival from inside containers was already ok too, so
effectively there's no change except for making container_weight() be
global instead of local to mkobj.c.
Have monster spells
| "shower of missiles" (AT_MAGC+AD_MAGM: Angels, Yeenoghu)
scuff an engraving at the hero's spot if there is one,
| "frost" (AT_MAGC+AD_COLD: only Asmodeus)
freeze water and lava terrain,
| "flames" (AT_MAGC+AD_FIRE: moot, no monster has this attack)
burn items on the floor at the hero's spot and melt ice terrain,
| "pillar of flame" (AT_MAGC+AD_CLRC+randomly chosen clerical spell)
which already burns floor items, melt ice too, and
| "lightning" (same casters as pillar of flame)
give a tiny chance of destroying iron bars. The chance to hit bars
is low and the hero has to be targeted while located on an iron bars
spot so probably won't happen before the sun burns out, but only
needed one extra line of code.
Only the first two have been thoroughly tested.
Issue reported by AmyBSOD: several actions change the object type of
a potion rather than force creation of a replacement one, and if/when
the type was changed to oil, the age wasn't converted from absolute
to relative. Relative age is the amount available and/or the number
of turns it will burn if applied. The later in a game a potion got
converted into oil, the longer it would burn. Not mentioned: reverse
situation was also the case, although that didn't have any noticeable
effect since incorrect absolute age of former oil doesn't matter.
Not thoroughly tested. I got a potion of oil from a horn of plenty
and it burned for 400 turns, but it might have been created directly
rather than be a rejected magic potion that was converted into oil.
Closes#1191
Adds a new boolean option, accessiblemsg. If on, some game messages
are prefixed with direction or location information, for example:
(west): The newt bites!
(northwest): You find a hidden door.
I added the info to the most common messages, but several are
still missing it.
Some functions are passed an obj or monst chain,
and the callers typically don't check them
against 0, so mark them explicitly as NO_NONNULLS
(NO_NONNULLS expands to nothing, but it flags that
some null arg analysis has been done)
Update several places where lazy lastseentyp[] might be an issue.
I think it isn't updated in a timely fashion when newsym() shows
a spot covered by an object or trap, but didn't manage to find any
cases where that caused a problem. This is more in the nature of
a precaution.
Fixup some of the inconsistently formatted code that has been
introduced recently or been building up for a while. Done manually.
I wasn't systematic except for looking for lines ending in '&' or '|'
(which wouldn't find such things if they're followed by a comment)
so there might be lots more. I changed a bunch of C++-style //...
comments to old style C /*...*/ so that they'll match the rest of
the core's code rather than because they shouldn't be used.
Prior to this commit, there was no good way to deal with swarms of
weak, good-AC enemies using magic; trying to play a wizard as a
pure spellcaster would make bees and ants very difficult to deal
with (because they would usually dodge force bolts).
This commit adds a new spell designed to be very good against
swarms of weak enemies: "chain lightning", which does 2d6 lightning
damage to every monster around you. It has an initially short range,
but can chain from monster to monster to cover potentially large
distances (as long as none of the monsters en route are shock
resistant or tame/peaceful; the spell can't chain past shock
resistant monsters and avoids peacefuls). Monsters within one
space of the visible lightning bolts are affected. Unlike other
lightning effects, this one does only 2d6 damage, not enough to
blind affected monsters.
This commit breaks existing save and bones files (thus the
EDITLEVEL increase).
The change to Sokoban difficulty calculation introduced a balance
issue: previously the Sokoban prize was obtainable before item-
destruction attacks became common and would protect from them,
whereas now they commonly appear in Sokoban itself, before the
prize is accessible. This makes scrolls and potions much less
usable as escape items, and potions of healing less usable for
HP recovery, because they either get stashed or destroyed (and
in either case aren't usable by the character in time-critical
situations).
This commit attempts to alleviate the problem by adding a way to
protect items from cold and fire in the early game. It's a
little unreliable, and requires equipping an item that has bad
stats and generally isn't otherwise used, but which is generally
easy to find early on.
Not included in this commit, but probably necessary for a
"finished" version of the feature: some way of letting players
know the new mechanic. It shows up in enlightenment, but there
should probably be at least rumors (and maybe even a major Oracle
consultation) hinting at the mechanic. We might also want to
change the unIDed description of the dwarvish cloak as a hint,
although that would require, e.g., new database entries.
The same checks were being repeated for every damage type; this
sends them through two centralised functions (one for checking
whether an extrinsic blocks a specific instance of item destruction
and one for the enlightenment message), so that new mechanisms of
item destruction prevention will need to change only one point in
the code.
For the accessories section of '*' and perminv_mode=InUse, show the
ring on main hand first (after amulet) and the one on off hand after
(before blindfold). Main hand ring is more significant due to the
potential of a one-handed weapon becoming cursed, preventing it from
being removed.
cg.zeroobj was originally added (under its previous unprefixed name)
for providing a one-line way to zero out the fields of a struct obj.
struct obj tempobj;
tempobj = cg.zeroobj;
initfn(struct obj *otmp)
{
if (otmp)
*otmp = cg.zeroobj;
}
More recently, the address of cg.zeroobj began to be used as a return
flag to indicate some things, but the 'const struct obj zeroobj' wasn't
an ideal fit for the purpose and required a number of casts, including
casting away const.
Provide a better fitting variable (gi.invalid_obj) and eliminate a
number of casts.
Classify nearby ice as "solid" (no melt timer), "sturdy" (more than
1000 turns left), "steady" (101 to 1000 turns left), "unsteady" (51
to 100 turns left), "thin" (15 to 50 turns left), or "slushy" (1 to
14 turns left, matching walking on ice with the Warning attribute).
[I'm not thrilled with "steady" and particularly "unsteady".]
I was originally going to do this just for probing downward, but ended
up also doing it for look-here and getpos's autodescribe. It nearly
got out of hand and touched more files than anticipated.
'mention_decor' ought to treat moving from ice firmer than thin to
thin or slushy, from thin to slushy, from slushy to any other, and
from thin to firmer as if moving onto different terrain but I haven't
attempted to tackle that.
The melt timer could work more like a candle's burn timer, triggering
at intermediate stages and resetting itself, so that ice which changes
to a weaker state under the hero could be reported to the player. But
this doesn't implement that.
