It is unacceptable that yvel is on one hand modifiable without restriction from
scripting, but can be used as an array index without prior bound check in the C
code. Because that member has an overloaded meaning and is also used for
innocuous purposes such as the green color intensity of an SE light, it's
infeasible to restrict access from scripting. Consequently, we must add bound
checks on the C side. This is the first part of the effort to make .yvel safe,
adding two functions P_Get() and P_GetP(). There are a couple of other uses as
some kind of index.
git-svn-id: https://svn.eduke32.com/eduke32@4226 1a8010ca-5511-0410-912e-c29ae57300e0
- in the function itself: for floor, currently, do nothing (but this commit
is in preparation of the next one, again)
- In Proj_MaybeDamageCF(), Proj_MaybeDamageCF2() and the A_RadiusDamage() use
if the function, generalize to floors, but with the special case that
parallaxed floors keep blocking projectiles, as before (in constrast to
parallaxed ceilings). However, Sect_DamageCeilingOrFloor() is only
called for non-parallaxed ceilings *and* floors.
git-svn-id: https://svn.eduke32.com/eduke32@4205 1a8010ca-5511-0410-912e-c29ae57300e0
- factor out: G_WallSpriteDist()
- factor out: Proj_MaybeDamageCF() and Proj_MaybeDamageCF2()
in preparation for the next commit
- Make PROJ_DECAYVELOCITY macro take an arg for readability's sake
git-svn-id: https://svn.eduke32.com/eduke32@4204 1a8010ca-5511-0410-912e-c29ae57300e0
- Move ARRAY_SIZE() macro to compat.h, add another one ARRAY_SSIZE()
- In A_RadiusDamage(): note maybe-unaligned access issue, prevent unlikely oob
- sector.c: use SPRITES_OF* macros where appropriate
git-svn-id: https://svn.eduke32.com/eduke32@4199 1a8010ca-5511-0410-912e-c29ae57300e0
Because p->scream_voice is an int8_t.
This is an unlikely situation (126 voices ought to be playing simultaneously
while starting the "scream" sound), but still...
git-svn-id: https://svn.eduke32.com/eduke32@4180 1a8010ca-5511-0410-912e-c29ae57300e0
Likewise for blocking wall sprites. This makes it possible to construct
underwater sections containing complex spritework without losing the
"underwater-ness" when over such sprites, in a backward-compatible way.
Actually, the check is for bit 1 being set, but all other bits should be
considered reserved.
git-svn-id: https://svn.eduke32.com/eduke32@4166 1a8010ca-5511-0410-912e-c29ae57300e0
It was only ever used as upper bound to the time that a visibility change
decays, but since it does that in an exponential fashion, there's really
no point.
git-svn-id: https://svn.eduke32.com/eduke32@3961 1a8010ca-5511-0410-912e-c29ae57300e0
That is, its value was only referenced during the duration of a function call
that had previously set it. It was also never accessible from CON.
git-svn-id: https://svn.eduke32.com/eduke32@3921 1a8010ca-5511-0410-912e-c29ae57300e0
Using macros like AC_COUNT(t). Clean up related code:
- comment out the dead condition noted in the previous commit
- Lunatic: use get_count() instead of get_t_data(0) in one place,
rename to _get_t_data(), i.e. make that method internal
git-svn-id: https://svn.eduke32.com/eduke32@3920 1a8010ca-5511-0410-912e-c29ae57300e0
Also, an external 'minitext' with optional shade and pal. args and
documentation for ps:padecol().
git-svn-id: https://svn.eduke32.com/eduke32@3893 1a8010ca-5511-0410-912e-c29ae57300e0
Numbers 0 and 1 mean 'no spread', but the latter does one krand() call.
Negative numbers are reserved for potential future use.
git-svn-id: https://svn.eduke32.com/eduke32@3715 1a8010ca-5511-0410-912e-c29ae57300e0
Specifically, in GL modes, and if the CHAINGUN is not replaced by a model,
- draw the upper part twice: first, two screen pixels * weapon scale lower,
then at the original position
- reverse the previous order: draw the upper part first, then the lower part
This is much preferable to the previous engine-side hack, and to my eye,
it looks perfect now.
git-svn-id: https://svn.eduke32.com/eduke32@3695 1a8010ca-5511-0410-912e-c29ae57300e0
- In S_PlaySound(), move the sound index bound check above an indexing.
- For A_CheckHitSprite(), and A_FindPlayer(), allow NULL second arg.
- In A_ShootWithZvel(), make some one-letter vars be int32_t, making
storing safeldist() results in them meaningful.
- In MaybeTrainKillEnemies(), remove two redundant checks and move another
one further up.
- Comment that SIDEBOLT1 will never be translucent as was probably intended.
- In G_MoveFX(), fix an always-true comparison.
git-svn-id: https://svn.eduke32.com/eduke32@3680 1a8010ca-5511-0410-912e-c29ae57300e0
So that members needing it are checked when they're assigned to using the
usual syntax. What kind of check to perform (sector, player, ... x whether
negative values are allowed) is written in a declarative fashion inside the
C declaration.
Also, make Lunatic's MAXQUOTES be C's OBITQUOTEINDEX and bound-check an
access of sprite[p->wackedbyplayer] in the C code.
git-svn-id: https://svn.eduke32.com/eduke32@3653 1a8010ca-5511-0410-912e-c29ae57300e0
Also, for tip_incs values greater or equal than the number of elements in
this table, return early reporting that the hand has been drawn, so that
the otherwise selected weapon is not drawn.
git-svn-id: https://svn.eduke32.com/eduke32@3630 1a8010ca-5511-0410-912e-c29ae57300e0
The unmodified behavior is completely wrong and I don't see how any mod could ever use it.
git-svn-id: https://svn.eduke32.com/eduke32@3578 1a8010ca-5511-0410-912e-c29ae57300e0
This should have no adverse effects or side-effects. The changes only apply if a modder chose to use completely broken functionality in the first place.
git-svn-id: https://svn.eduke32.com/eduke32@3544 1a8010ca-5511-0410-912e-c29ae57300e0
We must not call these functions using the FFI, since the Lua state is
considered locked across such calls.
git-svn-id: https://svn.eduke32.com/eduke32@3520 1a8010ca-5511-0410-912e-c29ae57300e0
Previously, actor[].shootzvel (implementation detail, not available to CON)
was checked, and if it was !=0, that was the overridden velocity. The value
0 meant "hardcoded, projectile-dependent velocity". But that neccesiated a
hack where if zvel 0 was passed and really meant, it needed to be set to
1 instead. Now we have A_ShootWithZvel() taking an additional last argument
plus a macro SHOOT_HARDCODED_ZVEL permissible for that argument.
git-svn-id: https://svn.eduke32.com/eduke32@3465 1a8010ca-5511-0410-912e-c29ae57300e0
