XEEN: Crash when trying to enter Deep Mine Alpha

[RX4NT9UP]

Entering Deep Mine Alpha in the dwarven mines results in a crash with the following output:

scummvm: ./common/array.h:192: T& Common::Array<T>::operator[](Common::Array<T>::size_type) [with T = Xeen::MonsterStruct; Common::Array<T>::size_type = unsigned int]: Assertion `idx < _size' failed.
Aborted (core dumped)

To reproduce:
click on mine cart and type alpha

ScummVM version:
ScummVM 2.1.0 (Oct 12 2019 12:00:00)
Features compiled in: TAINTED Vorbis FLAC MP3 ALSA SEQ TiMidity RGB zLib MPEG2 FluidSynth Theora AAC FreeType2 JPEG PNG

Game Language:
ENGLISH

Game Version:
DOS CD

OS:
Linux OpenSuse Leap 15.1

[priiice]

I can corroborate reproduction of this bug in my own playthrough. I'm using the 2.1.0 macOS 10.7+ 64-bit release binary.

[JesseDyer]

Same issue here.

[dreammaster]

I was able to track down and fix the problem. It'll be available from the next nightly build.

[JesseDyer]

Hey, was that to be in :

ScummVM 2.2.0git1851-g7d4045f4a9 (Jan 8 2020 06:31:17)

.. cause if so, I retested; still fails.

[dreammaster]

Ironically, that looks like the build from the commit just before the commit that fixes it. Try again with tomorrow's build.

[JesseDyer]

Retested : ScummVM 2.2.0git1884-ga18eae1067 (Jan 10 2020 06:15:22)

Still fails.

[dreammaster]

Further experimentation revealed that the problem occurred in the non-CD World of Xeen version as well as the originally reported CD version. If that's the case for you, the next nightly should include the fix.