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[Blacken]

So...yeah.

[UberNube]

That looks just like an overflow error to me. It's probably a bug in the pathing which actually calculates a very large distance, but it overflows to a negative one. I can't imagine a skilled programmer like toady writing a path-finding algorithm capable of producing a negative value under any conditions.

[Blacken]

That looks just like an overflow error to me. It's probably a bug in the pathing which actually calculates a very large distance, but it overflows to a negative one.

It may be an overflow error, but the items being referred to are one Z-level up and a few steps away. It is miscalculating, regardless of whether it is overflowing or not.

I can't imagine a skilled programmer like toady writing a path-finding algorithm capable of producing a negative value under any conditions.

Clearly he has, so perhaps you can imagine it now. Toady's a good programmer, but any programmer can make any number of mistakes that cause shortest-path to not work correctly.

[Aklyon]

This happened to me too.

[ein Syndication]

I believe this used to happen in the older versions when it couldn't find a valid path to the materials normally, but it could when it assumed the tile you were placing already existed. If you go into individual view, it should list some accessible logs mixed in with the crazy negative number logs.

[Zombie]

I can't imagine a skilled programmer like toady writing a path-finding algorithm capable of producing a negative value under any conditions.

Clearly he has, so perhaps you can imagine it now. Toady's a good programmer, but any programmer can make any number of mistakes that cause shortest-path to not work correctly.

I concur here. It likely is a pathfinding bug and if it is then Toady indeed did write a pathfinding algorithm that was capable of producing a negative value under the condition that it overflowed. I highly doubt he intended to, but the result is plainly there. If anyone else has this error, perhaps we can use DorfLogic to see how many tiles the shortest path would be. Keep your saves, as well, as it'll help track down this most strange error.

It's quite odd, though, as overflows usually make the lowest negative number possible +1... Or at least the ones I have seen.

[immibis]

I've experienced this bug when I try to build something in a place that doesn't have access to any building materials (but the game thinks it does due to the other pathing bug).