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[connor.clark]

https://zquestclassi...leases/2.55.11/

To help reduce the number of bugs in official releases, here is an unofficial prerelease build to give people a chance to find and report any obvious new bugs. The official release will come in a few days.

 

The Windows prerelease of 2.55.11 can be downloaded here. Keep this separate from your main ZC install. Once the version has been officially released, replace this prelease build with one from official channels (the updater, GitHub, or zquestclassic.com). This link will expire at that point.

 

Use this thread to discuss or ask questions about the new changes.

 

Changelog:

 

# Features

 

zc: optimize ORR/ORV/ORR32/ORV32 in x64 jit

zq: add 'Script Bugfix' option (default on) to new file dialog

 

zscript: support `Trace(string)`

  When a string is given to `Trace()`, it now smartly prints that string,

  same as `TraceS` would.

 

zscript: log error when GetPixel input is out-of-bounds

 

# Bug Fixes

 

 

refuse large string allocation when loading qst

  Corrupt or newer qst files should never crash (just show an error), but

  in some cases the loading code can try to allocate huge strings from bad

  data. Now, refuse to allocate large strings to avoid a potential crash.

 

properly apply 'custom' counter max increases given by starting items

zc: prevent crash from div-by-0 with enemy misc

  Many configurable enemy misc values are used as the dividend in a

  modulus operation. If these values are set to 0, a crash can happen. The

  result now is to return 0 (same result as when configured with 1).

 

zc: ignore corrupted enemies in 1.90 or older quests

  Somehow, quests saved in old versions could sometimes set invalid screen

  enemies. Modern ZC has more enemies, so those bad quests were now

  loading scary new enemies like Ice Wizzrobes where before they might do

  nothing interesting.

  

  Now, when loading 1.90 or older quests, any enemy ids that were not

  possible at the time are now ignored.

 

zc: stop drawing dive items in lens view after pickup

  This bug only happened if the `Old Special Room Screenstate Detection`

  QR was on.

 

zc: pitfalls + Block Hole flag on same layer as block using wrong next combo

zc: handle when save no longer exists with "Reload Last Quest" on

  Instead of closing the program when the last quest save file cannot be

  loaded, load the title screen instead.

  

  Also, store the save path instead of the slot index, since the latter

  can change when manually adding or deleting save files.

 

zc: do not unselect A button when loading save

  A bug in initializing the game resulted in the A button always being

  unequipped (unless it was forcibly set with a script).

 

zc: cane of byrna sparkles lingering after death if extra dying frame qr is on

zc: prevent possible crash in ZCSubscreen::get_item_pos

zc: avoid "invalid save slot index" when creating new save

  Creating a new save slot could sometimes invalidate all existing save

  slots (until the program was restarted).

 

zc: tile width/height not working for custom/ice weapons

zc: wrong combo ID used for some water behavior

  When the "New Water Collision" QR is off, the combo type instead of the

  combo ID was being used to control some behavior (such as the damage

  amount).

 

zc: pit/water corner cutting (newer movement only)

zc: minimap title requiring map item didn't actually check for item

  When "Invisible w/o Map item" was set, the map item wasn't always being

  checked.

 

zc: falling/drowning issues

  Enemies/items/weapons were not using correct hitbox for falling/drowning

  Enemies/items were immune to drowning in sideview

 

zc: move custom eweapon to lweapon sprite list when reflected

zc: walk-through-walls not being respected for pit/water scroll check

zc: prevent memory leak from replay steps

zc: 'Move' missing from combo page rclick menu

zc: held-up items treated 'Only Held' pickup string flag as 'Always'

zc: cutscene trigger combos that allow F6 softlocking on F6

zc: walking over pits in some cases (made pits more sensitive)

zc: prevent trigger change effect resulting in invalid combo

  When the combo change for a trigger effect produces a combo with a bad

  ID (negative or larger than the max), the engine would crash. Now, the

  resulting combo is clamped to the valid range.

 

zc: allow background to be transparent in active subscreens

  When the compat QR "Old Engine Subscreen Quirks" is off, a bug caused

  the background for active subscreens to never display the playing field

  even when the subscreen did not have a solid background.

 

zq: allow item editor to enter larger numbers for the Power field

zq: subscreen editor color selectors not showing cset 12/13 properly

zq: improve test mode screen matching

  Take into account the dmap xoff value when selecting the default dmap

  to use for test mode.

 

zq: prevent test mode from using screens >= 0x80

zq: use correct width for tile anim preview frames

zq: properly set enemy move flags when saving old quests

  Quests older than 2.11 were accidentally clearing enemy move flags if

  saved in the editor, resulting in enemies not be able to traverse over

  water or pits.

 

zq: handle all filesystem errors when creating quest package

zscript: clear eweapon script when it ends

  When a script ends, the scripting engine is supposed to clear the

  object's script so that it cannot run again. But a bug prevented that

  from happening for eweapons.

  

  Normally that wouldn't matter, but if the weapon was reflected it would

  then try to run the eweapon script on the newly created lweapon.

  

  And normally, _that_ would maybe mostly work, but another bug actually

  caused a crash to happen instead.

  

  So now eweapons have their script cleared when it ends, and the crash is

  avoided.

 

zscript: prevent crash when drawing to system bitmap render targets

  Script draws to the `RT_BITMAP0`, `RT_BITMAP1`, etc. bitmaps could

  result in a crash.

  

  This regressed in 2.55.9.

 

zscript: correctly handle COMPAREV2 in x64 jit

zscript: use correct sprite for step in weapon MakeAngular

  The wrong variable was being referenced to access the weapon's step

  value. Instead of using the weapon, it used whatever was last set to a

  global `sprite` variable in the scripting engine (which could possibly

  result in a crash).

 

zscript: load initial screen before onSaveLoad global script

  When the "Use Old Global Init and SaveLoad Timing" compat QR is off, the

  onSaveLoad global script ran before the initial screen even loaded. That

  made accessing anything on `Screen` do the wrong thing.

  

  Now, this global script can access the initially loaded screen.

 

 

# Refactors

 

check each file section version for validity

 

remove date check when loading qst

  The date check had some correctness issues and was kind of complicated,

  and the explict version checks are sufficient, so it's been removed.

 

zc: use monospace font for text overlay (fps, etc.)

zq: save test mode replays to "replays/test" folder

  Just to separate from replays for normal saves.

 

 

# Tests

 

add stellar_seas_intro.zplay

 

# CI

 

[win] update vcpkg to 2025.08.27