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General Forums => Aces High General Discussion => Topic started by: Kazaa on November 28, 2009, 01:29:39 AM

Title: The way collisions work, changed?
Post by: Kazaa on November 28, 2009, 01:29:39 AM
The last 6 times players have collided with me I've gone down with them. This never use to be the case.

Has anyone else notice this?
Title: Re: The way collisions work, changed?
Post by: Latrobe on November 28, 2009, 01:34:00 AM
Are you implying that you ram on purpose???  :huh ;) :noid




I haven't collided with anyone yet so I wouldn't know. Kinda hard to to collide with someone with the sky being as big as it is.
Title: Re: The way collisions work, changed?
Post by: oakranger on November 28, 2009, 01:34:16 AM
yep, i notice it a lot. 
Title: Re: The way collisions work, changed?
Post by: Kazaa on November 28, 2009, 01:39:43 AM
Are you implying that you ram on purpose???  :huh ;) :noid




I haven't collided with anyone yet so I wouldn't know. Kinda hard to to collide with someone with the sky being as big as it is.

Remember, they've been colliding with me.
Title: Re: The way collisions work, changed?
Post by: Clone155 on November 28, 2009, 02:02:01 AM
Some guy collided with me, and I got the kill and flew away fine.
Title: Re: The way collisions work, changed?
Post by: Chalenge on November 28, 2009, 02:03:25 AM
Its just a matter of whether you both get the collision message or one of you or both got shot before or not... really. Sounds confusing but think about it and it will become clear.
Title: Re: The way collisions work, changed?
Post by: OOZ662 on November 28, 2009, 02:54:05 AM
Actually, in the case that you do not get a "You have collided" message and yet still go down, he flew through you with his guns blazing. He shot you down.
Title: Re: The way collisions work, changed?
Post by: AWwrgwy on November 28, 2009, 03:31:50 AM
Same as ever for me. 

Seems to still work fine.


wrongway
Title: Re: The way collisions work, changed?
Post by: grizz441 on November 28, 2009, 05:34:04 AM
The last 6 times players have collided with me I've gone down with them. This never use to be the case.

Has anyone else notice this?

You mean, you're only seeing the white collision message and you are going down?  If that's the case they are shooting you.
Title: Re: The way collisions work, changed?
Post by: oTRALFZo on November 28, 2009, 10:52:00 AM
Not too long ago, P38 sneaks up behind me, I never see him coming,  I get the XXX has collided with you msg..then I go down and hes fine. I dont get it. I was told that if the collision is on your screen, you get the msg..so forth. I will never understand the collison modeling here.
Title: Re: The way collisions work, changed?
Post by: Motherland on November 28, 2009, 11:21:37 AM
The last 6 times players have collided with me I've gone down with them. This never use to be the case.

Has anyone else notice this?
Maybe your ping has gone down?
Title: Re: The way collisions work, changed?
Post by: RAS on November 28, 2009, 12:27:27 PM
Not too long ago, P38 sneaks up behind me, I never see him coming,  I get the XXX has collided with you msg..then I go down and hes fine. I dont get it. I was told that if the collision is on your screen, you get the msg..so forth. I will never understand the collison modeling here.

Amen to the understanding of the collision model TRALFZ.  I have read many of the collision explanation threads about the issue with what "I" see on my FE versus what the other player see's on their FE and that all makes sense.  What doesn't make sense is why if the server recognizes "I" got hit or hit someone else and gives me damage (or deth) that it can't give damage (or deth) to the toher player ?  It obviously knows that a collision occured between two planes when it sends the message "XXX has collided with you".......well, anyway....I am with you....don't understand the modelling.

RASCAL
Title: Re: The way collisions work, changed?
Post by: RAS on November 28, 2009, 12:34:58 PM
Back to the original question from Kaaza.....no, I haven't noticed anything different.  I still die (take damage)....guess I have too good of a connection.  Thankfully they are rare for me.

RASCAL
Title: Re: The way collisions work, changed?
Post by: 68ZooM on November 28, 2009, 12:40:16 PM
I had a collision last night in a dogfight at 35 several planes looping in and out i guess he hit my tail section, i got the ^%$# has collided with you but we both were able to continue fighting in the dogfight, kinda weird
Title: Re: The way collisions work, changed?
Post by: Motherland on November 28, 2009, 12:41:19 PM
What doesn't make sense is why if the server recognizes "I" got hit or hit someone else and gives me damage (or deth) that it can't give damage (or deth) to the toher player ?  It obviously knows that a collision occured between two planes when it sends the message "XXX has collided with you".......well, anyway....I am with you....don't understand the modelling.
The server doesn't detect/deal damage from the collisions; that would take too long. All of the damage is done on your computer.
Title: Re: The way collisions work, changed?
Post by: RAS on November 28, 2009, 12:58:56 PM
The server doesn't detect/deal damage from the collisions; that would take too long. All of the damage is done on your computer.

Makes sense....so is my computer telling the server "I got hit" and/or that "I hit something" and then my computer also tells the server "XXX" is the result of that collision ?

Thanks in advance for a reply Motherland.

RASCAL
Title: Re: The way collisions work, changed?
Post by: Kazaa on November 28, 2009, 01:15:39 PM
You mean, you're only seeing the white collision message and you are going down?  If that's the case they are shooting you.

Yes I have the message in white which says "player has collided with you". Every time this happens to me I go down in flames.

Thanks for the input guys.
Title: Re: The way collisions work, changed?
Post by: E25280 on November 28, 2009, 01:17:37 PM
Makes sense....so is my computer telling the server "I got hit" and/or that "I hit something" and then my computer also tells the server "XXX" is the result of that collision ?

Thanks in advance for a reply Motherland.

RASCAL
I would make a small correction to your statement.  Your computer detects whether your airframe and an object occupy the same space at the same time.  If so, "you have collided" and suffer some form of damage.  (Note that collision damage need not always be fatal -- a simple fact that many have a hard time comprehending.)

"I got hit" and "I hit something" still imply that there is some kind of "at fault" mechanism at work, and there IS NOT.  Collisions are no-fault -- they simply either did or did not occur in your computer's "reality."

The other player's "reality" is slightly different due to internet lag, hence the occasion for one player's computer to detect a collision while the second player's computer did not.
Title: Re: The way collisions work, changed?
Post by: E25280 on November 28, 2009, 01:20:44 PM
Yes I have the message in white which says "player has collided with you". Every time this happens I go down in flames.

Thanks for the input guys.
Just for clarification - are you seeing this in game or when reviewing film? 

I ask because we have had occasions where people have claimed to have taken damage from a collision without receiving the orange "you have collided" message.  Usually this is because they are reviewing film and don't see the message.  However, the orange system messages do not appear on the film (i.e. you won't see "control mode 1 selected" on your film, either), which was the source of the confusion.

I've not noticed any change, but I don't think I've had any collisions (either way) recently.
Title: Re: The way collisions work, changed?
Post by: warhed on November 28, 2009, 01:21:17 PM
Yes I have the message in white which says "player has collided with you". Every time this happens to me I go down in flames.

Thanks for the input guys.

Bet you don't have film of that  :aok
Title: Re: The way collisions work, changed?
Post by: AWwrgwy on November 28, 2009, 01:58:54 PM
Not too long ago, P38 sneaks up behind me, I never see him coming,  I get the XXX has collided with you msg..then I go down and hes fine. I dont get it. I was told that if the collision is on your screen, you get the msg..so forth. I will never understand the collison modeling here.

A P-38 sneaks up behind you and you go down.  That's it. 

You really think you went down because his plane collided with you???

How do you know "he's fine"?  He didn't die, but is he undamaged?  Unless you PM'd him and compared notes, you're just speculating.


wrongway
Title: Re: The way collisions work, changed?
Post by: nimble on November 28, 2009, 04:06:40 PM
I've always been of the opinion that if a collision occurs regardless of fault both planes should go down. Gives people who HO a less than 50/50 they love so much and would reflect a collision during a scissors more realistically. Additionally it will take away the forced collisions people do in order to get a kill when someone is on their 6.

Yes I am still of the opinion that if you get HO'd it's your own fault.
Title: Re: The way collisions work, changed?
Post by: Lusche on November 28, 2009, 04:15:39 PM
I've always been of the opinion that if a collision occurs regardless of fault both planes should go down.

Picture time again:

Pictures of an actual AH2 collision, both taken exactly at the moment of the collision:

This is what the Pony Pilot saw on his screen:
(http://img222.imageshack.us/img222/1364/rammyfegg1.jpg)

This is what happened on the P-47s pilots computer:
(http://img222.imageshack.us/img222/8728/ramotherfexg7.jpg)
P-47 took no damage.

Nimble, if you are the P-47 pilot - would you still say "I should have gone down?"

Title: Re: The way collisions work, changed?
Post by: nimble on November 28, 2009, 04:32:04 PM
Picture time again:

Pictures of an actual AH2 collision, both taken exactly at the moment of the collision:

This is what the Pony Pilot saw on his screen:
(http://img222.imageshack.us/img222/1364/rammyfegg1.jpg)

This is what happened on the P-47s pilots computer:
(http://img222.imageshack.us/img222/8728/ramotherfexg7.jpg)
P-47 took no damage.

Nimble, if you are the P-47 pilot - would you still say "I should have gone down?"



No, I'll have to rethink my opinion on that. Thanks for the pics... Just wondering how large the latency is going on during these pictures if you have that info. Maybe the problem is a lag threshold that is too high? Is one a 56k connection user? Or is this just serverside? Regardless that is a big discrepancy in those pics, and it just seems to be too big for current broadband connections. Just wondering and thanks again for the pics.
Title: Re: The way collisions work, changed?
Post by: Lusche on November 28, 2009, 04:38:32 PM
No, I'll have to rethink my opinion on that. Thanks for the pics... Just wondering how large the latency is going on during these pictures if you have that info. Maybe the problem is a lag threshold that is too high? Is one a 56k connection user?

Both European users with a stable ADSL connection, ping time about 150ms. With two American cyberpilots the positional differences are smaller, but still there.
And as much of the AH playerbase is located allover the world, I deliberately used two non US players to illustrate my point.

OF course our collision model is not perfect when being compared to the real world. But it's not the model's fault, it's because of the technical nature of the internet.

With current model, you have a chance to avoid the collision - steer clear of your opponent and you don't get a collision, regardless what's happening on his side. What you see is what you get.
With "both go down", you can harldy avoid a collision that you aren't even seeing on your screen. You just go "boom".


BTW, this is a .wmv movie of the collision the pictures where taken from. It's a short (3MB) clip in which I merge both player's external view into one:
http://www.mediafire.com/?doynhxrgljy
Title: Re: The way collisions work, changed?
Post by: Flench on November 28, 2009, 04:41:39 PM
That's wild ..
I think if you get HO'd it's your own fault unless you get it in the back or side or something.
Title: Re: The way collisions work, changed?
Post by: nimble on November 28, 2009, 04:44:09 PM
Gotcha, thanks for the clarification. Still seems to be a rather large difference, but if the current model is the best we can get(150ms is pretty acceptable) with current technology support for eu broadband users, well I guess that's what we have. Thanks again, I hadn't seen those examples yet.
Title: Re: The way collisions work, changed?
Post by: AWwrgwy on November 28, 2009, 04:58:05 PM
BTW, this is a .wmv movie of the collision the pictures where taken from. It's a short (3MB) clip in which I merge both player's external view into one:
http://www.mediafire.com/?doynhxrgljy

Wow!!  That's great!!

Need to make it an animated .gif now so you can post a "moving" explanation now.

 :aok


wrongway
Title: Re: The way collisions work, changed?
Post by: grizz441 on November 28, 2009, 05:35:08 PM
Yes I have the message in white which says "player has collided with you". Every time this happens to me I go down in flames.

Thanks for the input guys.

The only legitimate explanation would be that you are getting shot and they are colliding with you on their end.  Is it possible they are shooting you as they collide?
Title: Re: The way collisions work, changed?
Post by: Karnak on November 28, 2009, 05:45:14 PM
Some of you should go do some tests in the MA using Me262s to see if it still works the same.   :t


 :P
Title: Re: The way collisions work, changed?
Post by: oTRALFZo on November 28, 2009, 06:59:59 PM
A P-38 sneaks up behind you and you go down.  That's it. 

You really think you went down because his plane collided with you???

How do you know "he's fine"?  He didn't die, but is he undamaged?  Unless you PM'd him and compared notes, you're just speculating.


wrongway
Yes, He did admit the overshoot and was just as confused as I was. I admit, I should of been filming but luckily we were both cool on the situation. Its not a whine..just wasnt clear on exactly happens. It was simplified to me as "if you see it on your screen..you get the msg" and yes he did admit to flying off unscaved.
Title: Re: The way collisions work, changed?
Post by: grizz441 on November 28, 2009, 07:26:36 PM
Kazaa one more possibility... if you're in a tater plane and shoot a guy too close (somewhere within 30yds or so) you will receive shrapnel damage from your own tater.  I'm sure you already know this but just reminding you.   :)
Title: Re: The way collisions work, changed?
Post by: BiPoLaR on November 28, 2009, 07:28:14 PM
The last 6 times players have collided with me I've gone down with them. This never use to be the case.

Has anyone else notice this?
i dont remember 1 single time where ive been in a collision with someone and i havent died.
so i wouldnt know