Pathfinder issues

[WhiteTreePaladin]

Just wanted to mention some pathfinding issues. I know it's a long process, and really appreciate the working being done.

1. Units get stuck trying to drop off resources at the edge of a building.

This seems to be mostly fixed. Haven't had this issue in a long time.

2. Units ignore movement orders. (The reintroduction of formations has allowed this to affect groups of units rather than just single large units.)

This happens many times during a match and interferes with enjoyment of the game. It occurs with larger units like rams and lately has begun to affect formations of units.

3. Units sometimes ignore impassable terrain and structures. (This started fairly recently.)

This includes units sailing over mountains and walking through structures. On rarer occasions, ships even move around on land.

Edited September 30, 2015 by WhiteTreePaladin

[Stan`]

Just wanted to mention some pathfinding issues. I know it's a long process, and really appreciate the working being done.

1. Units get stuck trying to drop off resources at the edge of a building.

This seems to be mostly fixed. Haven't had this issue in a long time.

2. Units ignore movement orders. (The reintroduction of formations has allowed this to affect groups of units rather than just single large units.)

This happens many times during a match and interferes with enjoyment of the game. It occurs with larger units like rams and lately has begun to affect formations of units.

3. Units sometimes ignore impassable terrain and structures. (This started fairly recently.)

This includes units sailing over mountains and walking through structures. On rarer occasions, ships even move around on land.

Last is http://trac.wildfiregames.com/ticket/3410

[Itms]

I'd really like a commands.txt for the second one, which is a UnitAI problem (not a pathfinder problem) I can't manage to reproduce.

[WhiteTreePaladin]

I'd really like a commands.txt for the second one, which is a UnitAI problem (not a pathfinder problem) I can't manage to reproduce.

I'm pretty sure I encountered the issue with rams and formation groups in the attached commands.txt. It wasn't the worse case of it that I've had, but it did happen repeatedly.

(Had to rename metadata.json to get it to upload.)

commands.txt

metadata_json.txt

I don't remember the revision, but it would have been whatever was current on the Git repo this past Sunday (27th) afternoon (3:00 or so).

Edited September 30, 2015 by WhiteTreePaladin

[mimo]

I also attach a very short commands.txt showing some problems: a bunch a cav is ordered to move to a given point, and the order succeeded only after the cavs made a lot of back-and-forth moves. In this small test (200 turns), I had to order them to move 3 times for the order to succeed. If we remove by hand the 2nd and 3rd move order from the commands.txt, the group of cavs is blocked at the first obstacle met, and strange enough, one of them stay in FORMATIONMEMBER.WALKING. while all others are in IDLE state.

commands.txt

[gameboy]

Even more strange is that deer and elephants and other wildlife in the game for more than 10 seconds of time, they will not necessarily move but where to turn left or right. Their actions are not natural.

[wowgetoffyourcellphone]

Even more strange is that deer and elephants and other wildlife in the game for more than 10 seconds of time, they will not necessarily move but where to turn left or right. Their actions are not natural

It is true. The disco dancing animals are back.

[Beru]

Hi.

I'm new here so I hope I won't say too much stupid things...

I'm using 0AD v18 since a week or so.

I've noticed that sometime the game get quite stuck, i.e. framerate drop to 1/sec, sometimes lower.

Having try to reproduce (proper word in English?) the bug, I notice it tends to happens when unit try to go to unreachable place and "keep trying finding a new path".

Smell to me like when years (20 ) ago I was doing basic computer science and the program get stuck in an infinite loop, eating all ressources, because the number of allowed loop for any process was set to high.

I'm a newbie related to programming, but I wonder if a simple solution would be something like "

- try to find a path to reach the location

- if you can't try again and increase value $pathtried of one

- if pathtried ever reach 10 (or any pre-set value), stop moving (and tell the stupid player that you don't have wings )

[Lion.Kanzen]

@Beru you must try with developers version , we have a new Pathfinder and A18 uses the old one.

[gameboy]

Animals should be able to move naturally, this is not natural I'm worried for them to walk.

[Stan`]

The bug is reported.

[historic_bruno]

One of the issues I'm seeing with the pathfinder and formations is that it prevents formation movement through gaps. A good example is on Acropolis Bay (2), take 3-4 of your initial military units and try to send them down the hill toward the middle of the map. They will walk the long way around the back even though they have no problem going down the hill individually. I don't know if this is an intentional behavior to try to improve formation pathfinding, but the result is quite awful in this case. It's not clear what is happening based on the pathfinder overlay.

[Lion.Kanzen]

my last gameplay was buggy, especially for the Ai.

Units Stucked, I Try to move in another way but the still, one thing, that was sucessful was, change some units to Testudo.

commands.txt

Edited October 9, 2015 by Lion.Kanzen

[Lion.Kanzen]

the summary of all bugs related to pathfinder (pics)

more bugs

female ai units stuck in own wall.

units stuck between buildings and a forest

cavalry range roman stuck by own friends

farm stuck units

see the 2 farms near CC

units climbing hills and get stuck

actor inside wall

Edited October 9, 2015 by Lion.Kanzen

[gameboy]

Since formations were enabled again in r17028, units in formation are stuck frequently at obstructions, mostly at resources. They seem to become stuck once one of the units are stuck and don't retry finding a path. When using no formation, they are stuck rather rarerly.

Often many walk-orders are required to resolve it.

http://trac.wildfiregames.com/raw-attachment/ticket/3505/formation_stuck_in_metal.gif

[Lion.Kanzen]

Yeah they don't try to find a new path.

[niektb]

I think it would be best to re-disable formations again, since that's where the most pathfinder bugs come from.

[gameboy]

My friends,Perhaps our old friend Itms can help us

Edited October 11, 2015 by gameboy

[gameboy]

Historic_bruno, my friend, I tested the latest SVN17136, found the problem still exists.

Soldiers and cavalry suddenly in there to do, and do not move around freely.

BTW: when cavalry and soldiers hunting for Gaia, only in the presence of prey keep do go without meat of hunted prey.

[Stan`]

Can you rephrase that ?

[wowgetoffyourcellphone]

I think cavalry now have trouble gather from sheep? Reproduce anyone?

[gameboy]

Let us take a look at this #3505 new defect.

http://trac.wildfiregames.com/ticket/3505

[gameboy]

 

Just wanted to mention some pathfinding issues. I know it's a long process, and really appreciate the working being done.

1. Units get stuck trying to drop off resources at the edge of a building.

This seems to be mostly fixed. Haven't had this issue in a long time.

2. Units ignore movement orders. (The reintroduction of formations has allowed this to affect groups of units rather than just single large units.)

This happens many times during a match and interferes with enjoyment of the game. It occurs with larger units like rams and lately has begun to affect formations of units.

3. Units sometimes ignore impassable terrain and structures. (This started fairly recently.)

This includes units sailing over mountains and walking through structures. On rarer occasions, ships even move around on land.

 

Today, I tested the latest version of SVN17146, these problems still exist

[Lion.Kanzen]

  

Today, I tested the latest version of SVN17146, these problems still exist

If they still thinking how fixing...

[historic_bruno]

Just an update: wraitii and others have been doing some great work on the pathfinder, and many issues have been solved. Now we need as much testing as possible before A19

And a note on formations specifically: the team discussed this during today's meeting; it seems they have many problems compared to A18, so we may have no formation set by default in A19 (units will move all individually unless a formation is chosen), until they can be properly fixed. Again, some testing is needed to decide this.