debug version and the original get the different result in battle

[fheroes2bugs]

Preliminary checks

• I've checked that there aren't other open issues on the same topic.
• I've checked that this issue is reproducible on the latest snapshot build.

Platform

Windows

Describe the bug

In autobattle I got different result in autobattle in debug version (debug = 5460) and the original one.

In original I don't lose unit(also my archers get morale):

dont.lose.units.in.original.version.mp4

In debug version I loose unit:

lose.unit.in.debug.version.mp4

Sure I understand that lose of units is caused by random damage of units, but in original one I can play it 100 times and never get my unit killed, and in the second one (in debug version, when archers get luck) I always get my unit killed.

The bug is in different luck in original fheroes and debug version.
In debug version I don't get luck.

Save file

autobattle - morale.zip

Additional info

version 1.09

[oleg-derevenetz]

The bug is in different luck in original fheroes and debug version.

What do you mean by "original fheroes"? If the "original fheroes" is the binary from our Releases section and "debug version" is the one that you built yourself from our sources, then it is inevitable for two reasons:

1. The logic of AI operation in newer sources may differ. AI makes different decisions during the battle, and it affects everything, including random events (including damage, luck and morale);
2. The operation of the random number generator may be different depending on the flavor and version of the compiler. That is, MSVC 2019, MSVC 2022, Clang and GCC all may give different chains of pseudo-random numbers for the same seed.

[ihhub]

Hi @oleg-derevenetz , I assume nothing we can do here as you correctly described the root of the problem, can't we?

[oleg-derevenetz]

Hi @ihhub if debug and release versions are built from the different set of sources (or using different compilers) then this is inevitable due to reasons described above.

[ihhub]

Closing this issue as nothing we can do.