Lucky Luc
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Still using the 6060 build, but I don't think this has been reported so far, so probably it hasn't been fixed.



Consider the above situation: For the first two steps the golem acts smart and realizes it can't cross the diagonal gentryii chain, so it moves eastwards. Until it reaches the circled spot. Then it tries to move southeast instead.

I guess this is happening because the golem checks all the surrounding squares without first checking whether a move would actually be "brain-possible"?

Expected behaviour: The brain realizes the golem can't cross the chain even if it's directly next to it.

Dragon Fogel
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This still happens in 5.1.0.6462.

Dragon Fogel
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The problem is that the brain is being inconsistent about the diagonal chain.

If the golem is diagonally adjacent to you and unobstructed, it will move diagonally towards you. The brained golem in the example does not do that. It thinks there's an obstacle. But the moment it's next to the chain, it doesn't.

Either brains should be fooled by diagonal chains in the same way they're fooled by orthosquares, or they shouldn't be fooled by them at all.

I think it's reasonable for chains to break the pathfinding system, but if that's going to happen they should break it consistently, not only when the monster is right next to one.

Dragon Fogel
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So on further testing, this is actually an issue with Direct brained movement.

A brained roach can navigate its way around the chain. But golems, gel babies, and wubbas get stuck.

This suggests that the intention is that the diagonal chain is an obstacle, and the bug is that Direct-moving entities treat it as their preferred move being blocked.

The spitemaster
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Is this possibly a wisp trail holdover?

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skell
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Things fixed for the release candidate after 5.1.0.6462:
- Brained golems no longer get stuck on diagonal chains if they stand next to them.

The issue was caused by the fact, that even though gentryii chains' diagonals are brain aware obstacle, the sorting function which chooses which moves to try first was not aware of them. This lead to discrepancy with other elements in the game, because for example orthosquares are brain invisible obstacles, thus pathmaps go through them as if they didn't exist. This resulted in golems trying to step onto ortosquares diagonally and get stuck and that is okay.
But in case of the chains they are brain visible and rock golems treated them as such until standing next to them where their logic broke.

If my explanation makes no sense just know that it's fine now

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Dragon Fogel
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Confirmed in 5.1.0.6478. Brained golems, gel babies, and wubbas now consider a diagonal gentryii chain to be an obstacle at all times.