Broken pathfinding

Gary Grigsby's strategic level wargame covering the entire War in the Pacific from 1941 to 1945 or beyond.

Moderators: Joel Billings, wdolson, Don Bowen, mogami

User avatar
BlackVoid
Posts: 639
Joined: Thu Oct 16, 2003 11:51 pm

Broken pathfinding

Post by BlackVoid »

This is with AB's map, but I have seen this happening in stock as well.

I just won a CV battle and now I am unable to give effective chase, because pathfinding is totally broken. This bug actually ruins my strategy for the 2nd time in PBEM. In a previous game I wanted to catch some allied transports near Lunga, but could not, because the idiotic pathfinding routine made a large detour [:@][:@][:@][:@][:@][:@][:@][:@]


Click on the link below for screenshot.
http://www.48.hu/chase.JPG
User avatar
BlackVoid
Posts: 639
Joined: Thu Oct 16, 2003 11:51 pm

RE: Broken pathfinding

Post by BlackVoid »

I have tried another route
http://www.48.hu/chase2.JPG
[X(][X(][X(]


User avatar
wdolson
Posts: 7686
Joined: Tue Jun 27, 2006 9:56 pm
Location: Near Portland, OR

RE: Broken pathfinding

Post by wdolson »

I've noticed that the software routes heavy combat TFs (carriers and BB TFs) so that they stay in deep water if possible. Try plotting the TF into the middle of the Slot near the Russle Islands. It can be irritating, I've run into the same sort of problem.

Bill
WIS Development Team
User avatar
BlackVoid
Posts: 639
Joined: Thu Oct 16, 2003 11:51 pm

RE: Broken pathfinding

Post by BlackVoid »

I just had a thought: Can this be avoided by following an ASW TF? Gotta work now, but I will try out. I normally follow a surface TF with CVs, but at this point in this campaign I do not have enough ships for that (South Pacific campaign).
AmiralLaurent
Posts: 3351
Joined: Tue Mar 11, 2003 8:53 pm
Location: Near Paris, France

RE: Broken pathfinding

Post by AmiralLaurent »

I don't think it is broken... If you ask Nagumo or Yamaguchi in 1942 to sail their CV at full speed in the uncharted shallow waters of Solomons, they will certainly not do that.

By the way, if something is broken, it is the ability of CV TF to effectively chase enemy TF after a CV battle. It wasn't done neither in Coral Sea, or off Midway, or off Guadalcanal, Marianas or Leyte. Never. After an heavy CV battle, even one-sided, CV hadn't much torpedoes left, and should come back to base to have replacement aircraft and so on.
el cid again
Posts: 16983
Joined: Mon Oct 10, 2005 4:40 pm

RE: Broken pathfinding

Post by el cid again »

It is reported by Mike Wood that pathfinding is partially messed up by pwhex programming.
Andrew Brown then reported he had deliberately not defined coasts properly to try to defeat a
particular problem of players landing in places they should not - and it didn't work out well
because of this issue - so he plans to convert back. I use his pwhex as the foundation file -
and I have also begun programming coasts back to the intended system - but so far only
Philippines and Japan are done for the RHS file.
User avatar
BlackVoid
Posts: 639
Joined: Thu Oct 16, 2003 11:51 pm

RE: Broken pathfinding

Post by BlackVoid »

Well, Japan had no problem sending down BBs and CAs through the "uncharted" waters of the Solomon's - during the night, at full speed! This is a bug, but this is not restricted to AB map, I had the same problem in a stock Guadalcanal campaign.
User avatar
Sardaukar
Posts: 12714
Joined: Wed Nov 28, 2001 10:00 am
Location: Finland/Israel

RE: Broken pathfinding

Post by Sardaukar »

Carrier TFs in game tend to avoid shallow waters because they are coastal waters, restricting carrier ops (at least I think that's the given reason). Bug or feature...take your pick...[:D][8D]
"To meaningless French Idealism, Liberty, Fraternity and Equality...we answer with German Realism, Infantry, Cavalry and Artillery" -Prince von Bülov, 1870-

Image
User avatar
BlackVoid
Posts: 639
Joined: Thu Oct 16, 2003 11:51 pm

RE: Broken pathfinding

Post by BlackVoid »

They avoid shallow water - that is OK by me, but avoiding 2 shallow water hexes of which one is my own base and make a 10 hex detour is a bit too much!
bradfordkay
Posts: 8658
Joined: Sun Mar 24, 2002 8:39 am
Location: Olympia, WA

RE: Broken pathfinding

Post by bradfordkay »

In WITP, carrier operations are only restricted in base hexes, not all coastal hexes (to the best of my knowledge). I am guessing that this was changed from UV because of the increase in hex size (60 miles from 30 miles).

fair winds,
Brad
Sonny
Posts: 2005
Joined: Wed Apr 03, 2002 9:51 pm

RE: Broken pathfinding

Post by Sonny »

You can get through there by plotting a specific hex in the shallow water (and having Patrol set not retirement). However, you need to plot a new hex each day which would mean it would take several days to go through the slot with a CV tf.
Quote from Snigbert -

"If you mess with the historical accuracy, you're going to have ahistorical outcomes."

"I'll say it again for Sonny's sake: If you mess with historical accuracy, you're going to have
ahistorical outcomes. "
bradfordkay
Posts: 8658
Joined: Sun Mar 24, 2002 8:39 am
Location: Olympia, WA

RE: Broken pathfinding

Post by bradfordkay »

No sane carrier task force commander would have been willing to sail his TF up the slot. It was certainly too narrow for carrier operations. Maybe 2by3 should have hardcoded CVs to stay out of the slot.
fair winds,
Brad
rokohn
Posts: 32
Joined: Fri Aug 04, 2006 6:59 pm
Location: California

RE: Broken pathfinding

Post by rokohn »

As I see it, the big problem with CV TF's in the slot is that the Carriers cannot sail into the wind to launch and recover. It takes a lot of ocean to conduct air operations.

My question for the designers is "Why designate battlecruisers as BC, when the US designation for the only battlecruisers the US authorized were CC-1 through CC-6.

As far as I know the only subtype for battleships were the Monitors, designated BM.

Actually I could guess at the reason, but it would have put a smile on my face to see CC's.
Whoever corrects a mocker invites insult;
. . .
Do not rebuke a mocker or he will hate you;
rebuke a wise man and he will love you.
Instruct a wise man and he will be wiser still;
teach a righteous man and he will add to his learning.
User avatar
Monter_Trismegistos
Posts: 1359
Joined: Tue Feb 01, 2005 8:58 pm
Location: Gdansk

RE: Broken pathfinding

Post by Monter_Trismegistos »

ORIGINAL: rokohn
My question for the designers is "Why designate battlecruisers as BC, when the US designation for the only battlecruisers the US authorized were CC-1 through CC-6.

Probably the reason is the same as why minesweepers are MS instead of AM and minelayers are ML instead of CM.
Nec Temere Nec Timide
Bez strachu ale z rozwagą
User avatar
wdolson
Posts: 7686
Joined: Tue Jun 27, 2006 9:56 pm
Location: Near Portland, OR

RE: Broken pathfinding

Post by wdolson »

ORIGINAL: BlackVoid

They avoid shallow water - that is OK by me, but avoiding 2 shallow water hexes of which one is my own base and make a 10 hex detour is a bit too much!

You could navigate through the Slot by plotting a course into the Slot, then the next day plot a course through on the other side. I ran into the same thing when trying to navigate a CV task force through Rabaul (when it and all bases around it were friendly). It wanted to plot the task force the long way around Rabaul. I first plotted my CVs to a point in the channel outside Rabaul with Patrol/Do Not Retire turned on. Then the next day, once they were committed to going through that channel, I plotted a course that took them through the other side. It took some micromanaging, but it worked.

Bill
WIS Development Team
User avatar
wdolson
Posts: 7686
Joined: Tue Jun 27, 2006 9:56 pm
Location: Near Portland, OR

Battlecruisers

Post by wdolson »

ORIGINAL: rokohn
My question for the designers is "Why designate battlecruisers as BC, when the US designation for the only battlecruisers the US authorized were CC-1 through CC-6.

As far as I know the only subtype for battleships were the Monitors, designated BM.

Actually I could guess at the reason, but it would have put a smile on my face to see CC's.

The Repulse is classified as a Battlecruiser in the game and has a BC designation. I forget the designations of the Alaska and Guam. I think they might be CCs.

Bill
WIS Development Team
User avatar
dtravel
Posts: 4533
Joined: Wed Jul 07, 2004 6:34 pm

RE: Battlecruisers

Post by dtravel »

"The Slot" is not the only place where you can see this broken path creation routine in action.  Moving thru the islands around Amboina you will see the same thing or between Timor and Java.  Probably the Aleutians too but no one in their right mind sends carriers there so its not confirmed.
This game does not have a learning curve. It has a learning cliff.

"Bomb early, bomb often, bomb everything." - Niceguy

Any bugs I report are always straight stock games.

Image
Halsey
Posts: 4688
Joined: Fri Feb 06, 2004 10:44 pm

RE: Battlecruisers

Post by Halsey »

My favorite "broken" pathfinding is when I send out an ASW TF and it mysteriously moves itself around unseen submarines.[:D]
User avatar
tsimmonds
Posts: 5490
Joined: Fri Feb 06, 2004 2:01 pm
Location: astride Mason and Dixon's Line

RE: Battlecruisers

Post by tsimmonds »

An SCTF should have no problem moving through the hex you describe. Send an SCTF thru and set anyone else you want to follow. If the SCTF won't go (but it should), use an ASWTF as someone else suggested above, and have the other TF follow that one.
Fear the kitten!
User avatar
JeffroK
Posts: 6417
Joined: Wed Jan 26, 2005 4:05 am

RE: Broken pathfinding

Post by JeffroK »

ORIGINAL: rokohn

As I see it, the big problem with CV TF's in the slot is that the Carriers cannot sail into the wind to launch and recover. It takes a lot of ocean to conduct air operations.

My question for the designers is "Why designate battlecruisers as BC, when the US designation for the only battlecruisers the US authorized were CC-1 through CC-6.

As far as I know the only subtype for battleships were the Monitors, designated BM.

Actually I could guess at the reason, but it would have put a smile on my face to see CC's.

Because the rest of the world uses BC to signify Battlecruisers, maybe the designers thought that they might have some sales outside of California.
Interdum feror cupidine partium magnarum Europae vincendarum
Post Reply

Return to “War In The Pacific - Struggle Against Japan 1941 - 1945”