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Home » Stars! 2.6/7 » The Academy » Shields - RS - min dam bug ... weird battle reports
Shields - RS - min dam bug ... weird battle reports Sun, 06 May 2012 09:35 Go to next message
Altruist is currently offline Altruist

 
Commander

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Registered: August 2005
Location: Berlin
I stumbled upon a very weird battle report.

* http://stars.arglos.net/download/shield.zip (the zip consists of m4, m8 and xy-file, no passwords)

My best guess:
The min dam bug from torps vs bigger stacks of ships is also working vs shields (so far we thought it only affected armour).
Worse: It looks like torps in terms of damage allocation have an AUTOMATIC hit because the shield losses in the battle report only work out roughly when even the deflected torps make full (min dam bug-)damage to shields.

As a sidenote:
It shows that max damage ratio does not take gatling weapons correctly into account: it would be better to get to zero distance vs gat-weapons but the max distance is kept.

Anybody can find a different or better explanation?


[Updated on: Sun, 06 May 2012 09:37]

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Re: Shields - RS - min dam bug ... weird battle reports Sun, 06 May 2012 17:54 Go to previous messageGo to next message
Eagle of Fire

 
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Are you sure this is not related to the battle view being altered by perception depending of if the "viewing" race have RS or not versus a race which would have RS or not?

Also, your sidenote is widely known since... Ages ago, way before my time if I have to believe the articles I've read all over the web.



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Re: Shields - RS - min dam bug ... weird battle reports Sun, 06 May 2012 18:19 Go to previous messageGo to next message
Altruist is currently offline Altruist

 
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Eagle of Fire wrote on Sun, 06 May 2012 23:54

Are you sure this is not related to the battle view being altered by perception depending of if the "viewing" race have RS or not versus a race which would have RS or not?


Did you look at the battle report?

I doubt that an altered perception destroys a ship. And that's the case here.

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Re: Shields - RS - min dam bug ... weird battle reports Sun, 06 May 2012 18:55 Go to previous messageGo to next message
Eagle of Fire

 
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No I didn't. But even then the altered perception is exactly what could make you believe that a ship is destroyed even though it should not, especially with big stacks.


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Re: Shields - RS - min dam bug ... weird battle reports Sun, 06 May 2012 20:20 Go to previous messageGo to next message
LittleEddie is currently offline LittleEddie

 
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Helped track down one or more Stars bugs

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Altruist wrote on Sun, 06 May 2012 09:35

I stumbled upon a very weird battle report.

* http://stars.arglos.net/download/shield.zip (the zip consists of m4, m8 and xy-file, no passwords)

My best guess:
The min dam bug from torps vs bigger stacks of ships is also working vs shields (so far we thought it only affected armour).
Worse: It looks like torps in terms of damage allocation have an AUTOMATIC hit because the shield losses in the battle report only work out roughly when even the deflected torps make full (min dam bug-)damage to shields.


well I looked at the battle, I can't see anything wrong with it.

From M8 battle

The stack of 100 DDs have 6000 shields before the first shot. The shields take 7156 damage points during the battle, with the 10% increase each round that works out about right. (I'm not doing the math for that, it's close)

After the shields come down a total of 16 DDs are destroyed. At that point, Phase 75, the Armor has been hit with 2638 Beam Damage points and 562 Missile Damage points*

In the M4 Battle

At Phase 60 the 100 DD's still have 3000+ shields but no more damage is done to the shields and they re-gen each round, but all damage, by both Beams and Missiles is taken by the Armor.

That's where I see the problem.

*Total Missile Damage Points to Armor reported in the Video to this point is 3632, but the real damage in a 100 ship stack is about 0.154 per reported point.

Quote:


As a sidenote:
It shows that max damage ratio does not take gatling weapons correctly into account: it would be better to get to zero distance vs gat-weapons but the max distance is kept.

Anybody can find a different or better explanation?



Maximize damage ratio Attempts to get in range of at least one ship of the target class and move in such a way as to do some damage while maximizing damage_done/damage_taken.

That is what the Mini-gun DD's did.

Little Eddie


[Updated on: Sun, 06 May 2012 20:36]

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Re: Shields - RS - min dam bug ... weird battle reports Mon, 07 May 2012 16:38 Go to previous messageGo to next message
Altruist is currently offline Altruist

 
Commander

Messages: 1068
Registered: August 2005
Location: Berlin
LittleEddie wrote on Mon, 07 May 2012 02:20

Altruist wrote on Sun, 06 May 2012 09:35

I stumbled upon a very weird battle report.

* http://stars.arglos.net/download/shield.zip (the zip consists of m4, m8 and xy-file, no passwords)

My best guess:
The min dam bug from torps vs bigger stacks of ships is also working vs shields (so far we thought it only affected armour).
Worse: It looks like torps in terms of damage allocation have an AUTOMATIC hit because the shield losses in the battle report only work out roughly when even the deflected torps make full (min dam bug-)damage to shields.


well I looked at the battle, I can't see anything wrong with it.

From M8 battle

The stack of 100 DDs have 6000 shields before the first shot. The shields take 7156 damage points during the battle, with the 10% increase each round that works out about right. (I'm not doing the math for that, it's close)


Both races participating in the battle have RS, so the shield value of the 100 DD (with wolverine shields) is 8400.

Well, here what happens in the battle. Since the display in the battle engine for shields behaves a bit weird, I'll do it with calculations.

The stack of 100 DD start with 8400 shields (regenerating).

Round 1: 8400 shields
64 damage to shields from torps, no ship lost (shields should completly regenerate)

Round 2: 8400 shields (after regenerating)
2574 damage to shields from lasers
64 damage to shields from torps
no ship lost

Round 3: 6602 shields (after regenerating 10%=840)
2574 damage from lasers to shields
54 damage to shields from torps
no ship lost

Round 4: 4814 shields (after regenerating 10%=840)
1400 damage to shields from lasers
1232 damage to armor from lasers
6 ships destroyed

More damage follows, all goes to armor.

So the question arises, what has happeed to the missing shields? In round 4 there should had been 4814 shields. But the lasers brought down only an additional 1400 before hitting armor. 3414 shields missing, that's quite a lot.

I have repeated the same battle without any torp-ships taking part and then everything works out. So the explanation seems somehow connected with the 6 single beta-torp-DDs and perhaps with the min dam bug. But so far we always thought that the min dam bug would apply only to armor.



[Updated on: Mon, 07 May 2012 16:40]

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Re: Shields - RS - min dam bug ... weird battle reports Tue, 08 May 2012 01:28 Go to previous messageGo to next message
iztok is currently offline iztok

 
Commander

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Registered: April 2003
Location: Slovenia, Europe
Hi!
Shields disapearing is an old, but rare bug. I've been hit once by it. At that time 44k shields disapeared and I lost one third of my FF horde instead of 10%. Didn't help when host regenned the turn, not even with the third regen.

Quote:

In round 4 there should had been 4814 shields. But the lasers brought down only an additional 1400 before hitting armor. 3414 shields missing

But when you mention this, 3414 missing shields is close to 40% increase of strenght by regen shields (3360), with some rounding errors. Confused Are we close to a clue?


BR, Iztok


[Updated on: Tue, 08 May 2012 01:35]

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Re: Shields - RS - min dam bug ... weird battle reports Tue, 08 May 2012 13:20 Go to previous message
Altruist is currently offline Altruist

 
Commander

Messages: 1068
Registered: August 2005
Location: Berlin
iztok wrote on Tue, 08 May 2012 07:28

Hi!
Shields disapearing is an old, but rare bug. I've been hit once by it. At that time 44k shields disapeared and I lost one third of my FF horde instead of 10%. Didn't help when host regenned the turn, not even with the third regen.


If it's a rare bug, then it should occure only sometimes... the posted battlereports weren't a unique occurance, though, but consistently happening within 3 battletests I made.

Perhaps somebody else can give it a try to see if it can be always repeated on different computers: one big stack of ships with RS vs a stack of lasers and 6+ single torps-tokens

iztok wrote on Tue, 08 May 2012 07:28

Quote:

In round 4 there should had been 4814 shields. But the lasers brought down only an additional 1400 before hitting armor. 3414 shields missing

But when you mention this, 3414 missing shields is close to 40% increase of strenght by regen shields (3360), with some rounding errors. Confused Are we close to a clue?


I've thought about this, too.
But in the first battle round the damage is only 64 damage, so inclusive battle round 4, there is only the follwoing regeneration:
64 + 3 x 840 = 2584 shields
which again is too far off to make sense as an explanation like "bugged regeneration".

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