[Test] AI Fix

Nicolas · 03-05-10, 11:32 AM

Ok, i have been frustated because of enemy ai always detect you when you are in front of them, i made tests dumbing the enemy ai but it gets too easy, if you leave it normal is almost impossible sneak into convoys/tf.

It's hardcoded and the only posible way to fix this is patch the game, the files or modify data when the game is running.
-------------------------

The thing work like this:

- You try to sneak into a convoy, i set enemy sonar range 1 meter,
- You get detected by visual or hydrophone or when you fire torpedoes, i set the range to the original value, and the escorts can ping.
- The is a counter 'Lost contact time' that 'loops' until the escorts gives up, when that happen this counter is set to 0 and i set to 1 the sonar range again.

--------------

Download:
http://www.filefront.com/15749085/SH-AI.zip/

Use:
Copy the file to silent hunter 4 folder, run it, launch sh4, when sh4 is in the menu press Ctrl-Alt-T or do an Alt-Tab and click 'Enable AI Fix', if you hear a beep it's enabled and it will be enabled until you close sh4.

Note:
- Only works with 1.5 version. Do not use it when playing uboat missions.
You can use it with or without any mod, only matters if is 1.5 version.
- I have avast antivirus and it say nothing about the program but some other AV or security program may report something. Because it works with data in other process memory.

keltos01 · 03-05-10, 12:11 PM

Quote:

Originally Posted by Nicolas

-------------------------

- Only works with 1.5 version. Do not use it when playing uboat missions.

but 1.5 is uboot version !

why can't we use it with uboots ? I meant I-Boats

keltos

Nicolas · 03-05-10, 02:39 PM

I suppose you can use it, i never played uboat missions, i thought that only the japanese escort AI have this behaviour.

Nicolas · 03-05-10, 05:35 PM

I made a test, seems to work properly by now.

I created a mission with 2 convoys looping. 100 km away from each other.

The escorts passed over the sub without detecting me, i then ordered ahead flank to make some noise, i got some pings, dived to 400 ft below thermal layer and escaped. Next i go to the other convoy location and the escorts the same, the didn't detected me when passing near.

However the escorts don't give up just in a few hours, may pass half a day and they are still on alarm.

For now i have doubts what happens if you are detected by aircraft.

Capt. Morgan · 03-06-10, 10:41 AM

Nice work Nicolas!

I tested it using a slightly modified version of the Borneo Convoy mission (altered so that the sub starts 7-Km away - to insure that they are not initially being detected by the escorts).

Approach to the convoy was conducted at 120' depth (10' above the thermal), 1/2 kts, rigged for silent running, battle stations. this is a straight-in approach from the front - the kind that always fails in SHIV.

e
<------X-------------- s
m m
m m ........e
m m

e

e=escort, m=merchant, s=my sub, X=where I get depth-charged if I try this without the fix.

Without your program, the escorts unfailingly detected me well before I could reach a firing position. I could only make the approach if I remained below the thermal, but was detected as soon as I came up to periscope depth.

With your program, I remained undetected as long as I kept my speed at 2 kts or slower.
Prolonged periscope use, firing torps., or going to 2/3rds speed all brought the escorts in on me.

Only strange thing. Using the Sonar depth finder did not seem to alert the escorts the one time I tried it.

Reminds me of how the AI worked in SH-1 - Getting into the convoy was rarely a problem, escaping after the attack was the trick.

Nbjackso · 03-06-10, 07:14 PM

I also want to extend a BRAVO ZULU for a job well done. I am currently playing SH4 with TMO 1.9 which is well known for having super sensitive destroyer sonar/detection ability. Although I have no specific scientific or statistical data to offer. All I can say is it is now possible to sneak into attack position on convoys, whereas before I would not even attempt to engage any convoys because all I ended up doing was evading depth charge attacks as the rest of the convoy would sail by out of harms way. Now, at least I can get a few fish into a couple of unsuspecting merchants before having to tangle with attacking destroyers. After awhile, the attackers tire from trying to find me and race back to join the convoy. Then I sneak back up to periscope depth and finish off the wounded merchants. This seems more realistic to me. Thanks again for this Mod/Tweak/Program/What ever you want to call it.

03-05-10, 11:32 AM	#1
Nicolas Commander Join Date: Jun 2007 Location: Uruguay Posts: 453 Downloads: 196 Uploads: 4	[Test] AI Fix Ok, i have been frustated because of enemy ai always detect you when you are in front of them, i made tests dumbing the enemy ai but it gets too easy, if you leave it normal is almost impossible sneak into convoys/tf. It's hardcoded and the only posible way to fix this is patch the game, the files or modify data when the game is running. ------------------------- The thing work like this: - You try to sneak into a convoy, i set enemy sonar range 1 meter, - You get detected by visual or hydrophone or when you fire torpedoes, i set the range to the original value, and the escorts can ping. - The is a counter 'Lost contact time' that 'loops' until the escorts gives up, when that happen this counter is set to 0 and i set to 1 the sonar range again. -------------- Download: http://www.filefront.com/15749085/SH-AI.zip/ Use: Copy the file to silent hunter 4 folder, run it, launch sh4, when sh4 is in the menu press Ctrl-Alt-T or do an Alt-Tab and click 'Enable AI Fix', if you hear a beep it's enabled and it will be enabled until you close sh4. Note: - Only works with 1.5 version. Do not use it when playing uboat missions. You can use it with or without any mod, only matters if is 1.5 version. - I have avast antivirus and it say nothing about the program but some other AV or security program may report something. Because it works with data in other process memory. Last edited by Nicolas; 03-05-10 at 05:22 PM.

03-06-10, 10:41 AM	#5
Capt. Morgan Commander Join Date: Dec 2009 Location: Just east of the west coast. Posts: 463 Downloads: 423 Uploads: 0	Seems to be working in TMO 1.9 and RFB2 Nice work Nicolas! I tested it using a slightly modified version of the Borneo Convoy mission (altered so that the sub starts 7-Km away - to insure that they are not initially being detected by the escorts). Approach to the convoy was conducted at 120' depth (10' above the thermal), 1/2 kts, rigged for silent running, battle stations. this is a straight-in approach from the front - the kind that always fails in SHIV. e <------X-------------- s m m m m ........e m m e e=escort, m=merchant, s=my sub, X=where I get depth-charged if I try this without the fix. Without your program, the escorts unfailingly detected me well before I could reach a firing position. I could only make the approach if I remained below the thermal, but was detected as soon as I came up to periscope depth. With your program, I remained undetected as long as I kept my speed at 2 kts or slower. Prolonged periscope use, firing torps., or going to 2/3rds speed all brought the escorts in on me. Only strange thing. Using the Sonar depth finder did not seem to alert the escorts the one time I tried it. Reminds me of how the AI worked in SH-1 - Getting into the convoy was rarely a problem, escaping after the attack was the trick. __________________ There are no great men, only great challenges that ordinary men are forced by circumstances to meet. -- Admiral William Halsey Last edited by Capt. Morgan; 03-08-10 at 03:01 PM. Reason: more info

03-06-10, 07:14 PM	#6
Nbjackso Navy Dude Join Date: Jul 2008 Location: San Jose, California, USA Posts: 174 Downloads: 448 Uploads: 18	I also want to extend a BRAVO ZULU for a job well done. I am currently playing SH4 with TMO 1.9 which is well known for having super sensitive destroyer sonar/detection ability. Although I have no specific scientific or statistical data to offer. All I can say is it is now possible to sneak into attack position on convoys, whereas before I would not even attempt to engage any convoys because all I ended up doing was evading depth charge attacks as the rest of the convoy would sail by out of harms way. Now, at least I can get a few fish into a couple of unsuspecting merchants before having to tangle with attacking destroyers. After awhile, the attackers tire from trying to find me and race back to join the convoy. Then I sneak back up to periscope depth and finish off the wounded merchants. This seems more realistic to me. Thanks again for this Mod/Tweak/Program/What ever you want to call it. __________________ Just get me within 1000 yards, and I'll do the rest

03-05-10, 02:39 PM	#3
Nicolas Commander Join Date: Jun 2007 Location: Uruguay Posts: 453 Downloads: 196 Uploads: 4	I suppose you can use it, i never played uboat missions, i thought that only the japanese escort AI have this behaviour.

03-05-10, 05:35 PM	#4
Nicolas Commander Join Date: Jun 2007 Location: Uruguay Posts: 453 Downloads: 196 Uploads: 4	I made a test, seems to work properly by now. I created a mission with 2 convoys looping. 100 km away from each other. The escorts passed over the sub without detecting me, i then ordered ahead flank to make some noise, i got some pings, dived to 400 ft below thermal layer and escaped. Next i go to the other convoy location and the escorts the same, the didn't detected me when passing near. However the escorts don't give up just in a few hours, may pass half a day and they are still on alarm. For now i have doubts what happens if you are detected by aircraft.