Interesting AI Behaviour

John Channing · 03-08-10, 12:30 PM

So here I am, on my first patrol as Captain, near the southern end of my patrol zone when my sonar operator picks up a contact. I surface and move in to investigate. It's dark and a little foggy so I have to close the range for a while until I see it is a warship of some sort. Now, I'm here to sink merchant tonnage, not to get into cat and mouse games with warships, so while I am still outside of his visual range I reverse course and move out slowly.

But he follows me.

I am still out of his visual detection range so I increase speed. He increases speed.

I change course. He changes course.

I slow down. He slows down.

I decide to submerge, head north and go to silent running for a few hours in hopes he will get bored and go away. Nope.. he just hangs around. Never getting within attack range, and never moving away. I surface, change course and pour on the coals and he matches me course and speed. We are now over 100 miles from where I picked him up and he is still there.

Again, he never closes the distance, never moves in, but he is stuck to me like an annoying kid brother.

I may have to sink him just to get rid.

JCC

Sunfighter · 03-08-10, 12:39 PM

Ive heard quite a few people talking about this, never had it happen yet myself.

Im curious to see what would happen should you drag him all the way to a friendly port of yours, to see if the port guards engage him.

It almost sounds to me like its a scripted counter attack from the merch sending out a distress signal, but its obviously screwed up in some way.

Ziggy · 03-08-10, 01:53 PM

I had German ships doing this. They followed me into the English Channel... Think they got sunk eventually. I would try to close in to see what ship they were (didn't know they were following me at first I thought, hey they are going on the attack I am going to support.) When I tied to close in, they turned away. I tried this a while, they would try to stay the same distance away from me no matter the direction or speed I went, they always matched. I know one was an escort from outside the Kiel Canal, but one was a biggin as I could see his huge puffs of smoke and make out a big black smudge on the horizon.

Was very weird, I think they saved me from a huge mess of escorts that I made mad when I attacked a tanker between Dover and Calais.

SteamWake · 03-08-10, 02:00 PM

You got an AI stalker there JC

Have you tried closing the distance? Will he sail away to keep the distance?

Oh I know drag him accross the map into a friendly convoy !

shawnyp420 · 03-08-10, 02:02 PM

This little annoyance plagued me the last time I tried SHV. I heard a warship and cruised in on the surface to investigate. Looked small so I turned away, then I noticed it was following. Encountered the same strange behavior everyone else has noted. So I tried to play his own game against him. I got him in between me and the coast of England. I drove in at him at flank speed headed toward the coast with men on the deck gun. Once he got within deck gun range I manually blasted him with a few close calls. THAT got his attention. He change course and headed for me. I tried bow shots with torpedoes but they either bounced off or never got close enough to trigger. Short story, I ended up on the bottom.

Haven't played since.

ReFaN · 03-08-10, 02:06 PM

had the same problem loads of times, dont know what is causing it.

Frederf · 03-08-10, 02:25 PM

Maybe this is the "wolfpack code" designed to make other U-boats stick to the player sub to recreate group behavior.

Dowly · 03-08-10, 02:35 PM

I've had a group of three enemy DD's stalk be west of Ireland and once german DD followed me from Wilhemshaven all the way to east of Scapa flow before it turned back.

BaronVonDuncs · 03-08-10, 03:17 PM

Maybe Robert Mitchums the captain and just wont let go

Haven't had this happen yet, mind you haven't played much yesterday or today as the master Servers seem to be borked.

John Channing · 03-08-10, 03:46 PM

Quote:

Originally Posted by BaronVonDuncs

Maybe Robert Mitchums the captain and just wont let go

Haven't had this happen yet, mind you haven't played much yesterday or today as the master Servers seem to be borked.

HA! I was thinking the exact same thing. Kept remembering the line "Well... he certainly squirms like a pigboat".

Well, me and Hymie might have a surprise for him!

JCC

Hartmann · 03-08-10, 03:58 PM

It´s a hidden Ubi DRM policy

Now seriously i think that could be a broken script, perhaps following the u-boat and requesting assistance to other units , like hunter killer groups, but not funtional.

bigboywooly · 03-08-10, 04:03 PM

Had 2 dds folowing me this way the other day
Increased TC and they stayed following at a respectfull distance
Then they pounced
Due to TC and blind watch crew got the death roll as dropped to 1
Nice

John Channing · 03-08-10, 07:47 PM

Well I got sick of him hangin' around so I went to PD, turned into him, kept the scope up and when he was at 600m, 0 AOB, Bearing 0, I let him have it.

Quite satisfying, really!

JCC

mookiemookie · 03-08-10, 08:02 PM

Quote:

Originally Posted by bigboywooly

Had 2 dds folowing me this way the other day
Increased TC and they stayed following at a respectfull distance
Then they pounced
Due to TC and blind watch crew got the death roll as dropped to 1
Nice

This is almost exactly what happened to me. Had 1 following just like John Channing described. Put on the speed, upped the TC, and wham. Got me.

longam · 03-08-10, 08:09 PM

I had the same thing first patrol but it was friendly. He finally went away but was a pain. The only saving grace wace the patrol mode to keep friendly from tripping TC

03-08-10, 12:30 PM	#1
John Channing Sea Lord Join Date: Sep 1998 Posts: 1,846 Downloads: 163 Uploads: 5	Interesting AI Behaviour So here I am, on my first patrol as Captain, near the southern end of my patrol zone when my sonar operator picks up a contact. I surface and move in to investigate. It's dark and a little foggy so I have to close the range for a while until I see it is a warship of some sort. Now, I'm here to sink merchant tonnage, not to get into cat and mouse games with warships, so while I am still outside of his visual range I reverse course and move out slowly. But he follows me. I am still out of his visual detection range so I increase speed. He increases speed. I change course. He changes course. I slow down. He slows down. I decide to submerge, head north and go to silent running for a few hours in hopes he will get bored and go away. Nope.. he just hangs around. Never getting within attack range, and never moving away. I surface, change course and pour on the coals and he matches me course and speed. We are now over 100 miles from where I picked him up and he is still there. Again, he never closes the distance, never moves in, but he is stuck to me like an annoying kid brother. I may have to sink him just to get rid. JCC

03-08-10, 02:00 PM	#4
SteamWake Rear Admiral Join Date: Mar 2005 Posts: 13,224 Downloads: 5 Uploads: 0	You got an AI stalker there JC Have you tried closing the distance? Will he sail away to keep the distance? Oh I know drag him accross the map into a friendly convoy ! __________________ Follow the progress of Mr. Mulligan : http://www.subsim.com/radioroom/showthread.php?t=147648

03-08-10, 02:06 PM	#6
ReFaN Grey Wolf Join Date: Jul 2008 Location: Sweden Posts: 831 Downloads: 101 Uploads: 0	had the same problem loads of times, dont know what is causing it. __________________ Liverpool is my relegion, Anfield is my church. True believers never walk alone.

03-08-10, 03:58 PM	#11
Hartmann Sea Lord Join Date: Mar 2005 Location: Grid CH 26, Spain ,Barcelona Posts: 1,857 Downloads: 204 Uploads: 0	It´s a hidden Ubi DRM policy Now seriously i think that could be a broken script, perhaps following the u-boat and requesting assistance to other units , like hunter killer groups, but not funtional. __________________ But this ship can't sink!... She is made of iron, sir. I assure you, she can. and she will. It is a mathematical certainty. Strength and honor

03-08-10, 04:03 PM	#12
bigboywooly Rear Admiral Join Date: Apr 2006 Location: Swindon, England Posts: 10,151 Downloads: 35 Uploads: 0	Had 2 dds folowing me this way the other day Increased TC and they stayed following at a respectfull distance Then they pounced Due to TC and blind watch crew got the death roll as dropped to 1 Nice __________________ My mediafire page http://www.mediafire.com/?11eoq19bq9r41

03-08-10, 12:39 PM	#2
Sunfighter A-ganger Join Date: Mar 2010 Posts: 78 Downloads: 0 Uploads: 0	Ive heard quite a few people talking about this, never had it happen yet myself. Im curious to see what would happen should you drag him all the way to a friendly port of yours, to see if the port guards engage him. It almost sounds to me like its a scripted counter attack from the merch sending out a distress signal, but its obviously screwed up in some way.

03-08-10, 01:53 PM	#3
Ziggy Torpedoman Join Date: Mar 2010 Location: Wisconsin Posts: 111 Downloads: 14 Uploads: 0	I had German ships doing this. They followed me into the English Channel... Think they got sunk eventually. I would try to close in to see what ship they were (didn't know they were following me at first I thought, hey they are going on the attack I am going to support.) When I tied to close in, they turned away. I tried this a while, they would try to stay the same distance away from me no matter the direction or speed I went, they always matched. I know one was an escort from outside the Kiel Canal, but one was a biggin as I could see his huge puffs of smoke and make out a big black smudge on the horizon. Was very weird, I think they saved me from a huge mess of escorts that I made mad when I attacked a tanker between Dover and Calais.

03-08-10, 02:02 PM	#5
shawnyp420 A-ganger Join Date: Mar 2005 Posts: 78 Downloads: 38 Uploads: 0	This little annoyance plagued me the last time I tried SHV. I heard a warship and cruised in on the surface to investigate. Looked small so I turned away, then I noticed it was following. Encountered the same strange behavior everyone else has noted. So I tried to play his own game against him. I got him in between me and the coast of England. I drove in at him at flank speed headed toward the coast with men on the deck gun. Once he got within deck gun range I manually blasted him with a few close calls. THAT got his attention. He change course and headed for me. I tried bow shots with torpedoes but they either bounced off or never got close enough to trigger. Short story, I ended up on the bottom. Haven't played since.

03-08-10, 02:25 PM	#7
Frederf Seasoned Skipper Join Date: Apr 2005 Posts: 665 Downloads: 79 Uploads: 1	Maybe this is the "wolfpack code" designed to make other U-boats stick to the player sub to recreate group behavior.

03-08-10, 02:35 PM	#8
Dowly Lucky Jack Join Date: Apr 2005 Location: Finland Posts: 25,052 Downloads: 32 Uploads: 0	I've had a group of three enemy DD's stalk be west of Ireland and once german DD followed me from Wilhemshaven all the way to east of Scapa flow before it turned back.

03-08-10, 03:17 PM	#9
BaronVonDuncs Swabbie Join Date: Mar 2010 Posts: 14 Downloads: 8 Uploads: 0	Maybe Robert Mitchums the captain and just wont let go Haven't had this happen yet, mind you haven't played much yesterday or today as the master Servers seem to be borked.

03-08-10, 07:47 PM	#13
John Channing Sea Lord Join Date: Sep 1998 Posts: 1,846 Downloads: 163 Uploads: 5	Well I got sick of him hangin' around so I went to PD, turned into him, kept the scope up and when he was at 600m, 0 AOB, Bearing 0, I let him have it. Quite satisfying, really! JCC

03-08-10, 08:09 PM	#15
longam Admiral Join Date: Jun 2005 Posts: 2,014 Downloads: 26 Uploads: 0	I had the same thing first patrol but it was friendly. He finally went away but was a pain. The only saving grace wace the patrol mode to keep friendly from tripping TC

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