[bug][1.3beta] path-finding issue

from Elemental Forums

An old issue we haven heard about for a while.

Why is it that when a unit starts in Ithuane or any surrounding square except for the two forested squares it will take the red path instead of the green path? 

Both have roads with stables to increase movement all the way but the red path takes two turns to the green paths one.

Most likely the path-finding is trying to avoid the forest squares even though the roads make them the same movement cost.

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Reply #1 from Elemental Forums Top

Most likely the path-finding is trying to avoid the forest squares even though the roads make them the same movement cost.
End of quote

The red path goes through more forest than the green path.  There is no logic in the pathing AI's decision.

Strategic pathfinding is sometimes downright bonkers.  I've seen units leave a city, move a few squares, and then route back through that same city.  They could have just left the city there!  Sometimes, if I've got a unit stationed in a city, and I tell him to exit the city to an adjacent tile that I've selected, he will leave the city somewhere else and walk outside to get there.

The pathing AI also prefers diagonal paths to straight ones.  I understand that they're, from the game perspective, the same distance, but those diagonal paths have so often put my Pioneers next to a monster that will kill it, when it could have just gone straight and been fine.

I've been wanting to report problems with the pathing AI for a while, I've just been too lazy to do it properly.

Reply #2 from Elemental Forums Top

Yea the red path does go through more forest tiles but for the first move action it goes through less.

The only difference between the paths other than distance I could see is that one would start going though forest.

 

Of course it would also use less movement for the red route to continue along the coast side of the chasm, (4 vs 6).

 

Nakisisa

 

 

 

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