Like on a media player for example?
If so, what is the best media player to use?
Thank you
Is there a way to view coh2 replays other that ingame?
5 Apr 2018, 15:26 PM
#1
Posts: 266 | Subs: 1
5 Apr 2018, 15:30 PM
#2
10 
Posts: 4785 | Subs: 3
As far as I know that isn't possible
5 Apr 2018, 16:01 PM
#3
Posts: 1138 | Subs: 2
That's probably not what you are looking for, but if you just quickly want to check what units have been build and so on, you can use this tool.
5 Apr 2018, 18:11 PM
#4
1 
Posts: 2307 | Subs: 4
The replay file is basically a list of all commands executed that runs through the game. When you load up the file in a replay it's the ai executing all the same commands with the same rng rolls happening (basically). There's really no other way to play these without the game.
Tobis "Complete Throw"
Someone asked what my avatar was from... I really don't know.
Defeated Paula and knocked him out of 2v2 Anniversary Cup
Someone asked what my avatar was from... I really don't know.
Defeated Paula and knocked him out of 2v2 Anniversary Cup
5 Apr 2018, 19:24 PM
#5
1 
Posts: 2885
The replay file is basically a list of all commands executed that runs through the game. When you load up the file in a replay it's the ai executing all the same commands with the same rng rolls happening (basically). There's really no other way to play these without the game.
Just would like to add one thing. A game in the version that was used to play the match is needed. One can play it in other version, but as the game is being replayed live, different stats will couse different outcome or a desync. That is why replays from different versions are hidden unless you run the game with some special parameter.
Also, in case OP would wonder about that, the game uses pseudorandom algorithm for the generation of rng rolls, so the file doesnt have to contain results of rng rolls, it simply contains the initial seed.
5 Apr 2018, 22:19 PM
#6
10 Posts: 4785 | Subs: 3
Damn what a nice insight. Always wondered how replays actually work
5 Apr 2018, 22:24 PM
#7
Posts: 1044 | Subs: 1
The replay file is basically a list of all commands executed that runs through the game. When you load up the file in a replay it's the ai executing all the same commands with the same rng rolls happening (basically). There's really no other way to play these without the game.
That seems like a really complicated way to do replays.
bg /l
5 Apr 2018, 22:25 PM
#8
1 Posts: 2885
That seems like a really complicated way to do replays.
As far as I know all rts games do that the same way. Why do you think it's complicated? Did you come up with a better idea?
5 Apr 2018, 22:29 PM
#9
Posts: 1044 | Subs: 1
As far as I know all rts games do that the same way. Why do you think it's complicated? Did you come up with a better idea?
idk I'm not really someone who would understand this type of stuff I guess it makes the most sense instead of other alternatives
just seems to limit possible 3rd party replay programs you see in other genres
bg /l
5 Apr 2018, 22:29 PM
#10
Posts: 1740
That seems like a really complicated way to do replays.
It is not. In fact this technique is extremly efficient. If you look at the demo file, it is usually around 100kb big. And that is for a file that represents a Full HD "video" with lengths of up to an hour and more.
Movies like this are usually about 5-6 GB big. That is more than 80.000 times the file size.
Instead of telling the screen each frame (usually 60 per second) the position of each and every pixel, you can simply say "Gren Squad moved from Position A to B at 0:12" and that's it.
It is though God by command has withdrawn every other throne.
And God is saying 'No. These people will deal with me alone.'
And God is saying 'No. These people will deal with me alone.'
5 Apr 2018, 22:33 PM
#11
Posts: 1044 | Subs: 1
It is not. In fact this technique is extremly efficient. If you look at the demo file, it is usually around 100kb big. And that is for a file that represents a Full HD "video" with lengths of up to an hour and more.
Movies like this are usually about 5-6 GB big. That is more than 80.000 times the file size.
Instead of telling the screen each frame (usually 60 per second) the position of each and every pixel, you can simply say "Gren Squad moved from Position A to B at 0:12" and that's it.
huh I never thought about it that way, so basically, instead of trying to upload a file with all the gameplay in it it just has commands to "replay" the match while keeping the file small.
Thanks, Ive never been that good at this stuff so its nice to learn about it.
bg /l
5 Apr 2018, 22:40 PM
#12
Posts: 1740
huh I never thought about it that way, so basically, instead of trying to upload a file with all the gameplay in it it just has commands to "replay" the match while keeping the file small.
Thanks, Ive never been that good at this stuff so its nice to learn about it.
You're welcome!
I also find that topic quite interesting.Of course the file is not written like a book, but the basic things apply.
I think the file probably has some kind of a header where the basic information is stored, like player name, ID, faction, loadout, map, etc. And then there's the content which contains the "replay"
It probably is more something like this:
Player0|1|AMove|22.54,12.99|121From left to right this would then be
ID of the player | ID of the unit of selected player | Command Type | Coordinates | Timestamp
As I never looked to these files, this is probably wrong in terms of markup. But the theory is probably correct
(Also there are probably a lot more contents aswell)It is though God by command has withdrawn every other throne.
And God is saying 'No. These people will deal with me alone.'
And God is saying 'No. These people will deal with me alone.'
5 Apr 2018, 22:53 PM
#13
1 Posts: 2307 | Subs: 4
That seems like a really complicated way to do replays.
It's too simple tbh. That's why you can't rewind.
Tobis "Complete Throw"
Someone asked what my avatar was from... I really don't know.
Defeated Paula and knocked him out of 2v2 Anniversary Cup
Someone asked what my avatar was from... I really don't know.
Defeated Paula and knocked him out of 2v2 Anniversary Cup
6 Apr 2018, 05:13 AM
#14
Posts: 607
This method of replay has been around since the original Doom, if not earlier. Great way, but unfortunately, no way to go "backward".
6 Apr 2018, 07:15 AM
#15
Posts: 1740
This method of replay has been around since the original Doom, if not earlier. Great way, but unfortunately, no way to go "backward".
As far as I know, Age of Empires and League of Legends can.
It is though God by command has withdrawn every other throne.
And God is saying 'No. These people will deal with me alone.'
And God is saying 'No. These people will deal with me alone.'
6 Apr 2018, 07:35 AM
#16
Posts: 17914 | Subs: 8
As far as I know, Age of Empires and League of Legends can.
Because they do not use same methods nor damage the map in permanent way.
There are 2 ways to do replays, what coh does with list of commands being executed in an order(and RNG outcomes playing as they did), or pretty much a 'video' kind of thing akin to SC2 replays.
Maybe it's 'cause the Axis players aren't a bunch of forum crybabies, and they keep their cool and fight the uphill battle, unlike some of their "allied" counterparts.
6 Apr 2018, 07:45 AM
#17
Posts: 1740
Because they do not use same methods nor damage the map in permanent way.
This is correct, I didn't think about this.
It is though God by command has withdrawn every other throne.
And God is saying 'No. These people will deal with me alone.'
And God is saying 'No. These people will deal with me alone.'
6 Apr 2018, 10:11 AM
#18
14 
Posts: 10665 | Subs: 9
Because they do not use same methods nor damage the map in permanent way.
There are 2 ways to do replays, what coh does with list of commands being executed in an order(and RNG outcomes playing as they did), or pretty much a 'video' kind of thing akin to SC2 replays.
But as you recall, there was a video playback version for COH1, which was not translated onto the Steam version of COH1, and video replays never appeared on COH2 at all.
Why would that be, do you think?
6 Apr 2018, 10:21 AM
#19
Posts: 1273
For people interested in this type of subject, have a gander on Google about Deterministic Gameplay.
6 Apr 2018, 10:58 AM
#20
1 Posts: 2307 | Subs: 4
But as you recall, there was a video playback version for COH1, which was not translated onto the Steam version of COH1, and video replays never appeared on COH2 at all.
Why would that be, do you think?
We didn't even get a proper replay overlay for months after the game came out.
What a sorry state the game was back then.
Tobis "Complete Throw"
Someone asked what my avatar was from... I really don't know.
Defeated Paula and knocked him out of 2v2 Anniversary Cup
Someone asked what my avatar was from... I really don't know.
Defeated Paula and knocked him out of 2v2 Anniversary Cup
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