Make rare race cars show up in the UCD?

[gambleboyen]

It's not even slightly random. It's massively long and irritating - and your start point is most likely different to anyone else's start point (though it is fixed on each console) - but it isn't random.

Most annoying thing is when you get two instances of the same car in the UCD at once, even worse when this also happens twice on one UCD screen. They haven't even "randomized" their looong list properly.

 

[Famine]

Ultimately, how the list is generated - while interesting - is not a concern, because we only care about the end result: the list. The list is always the same regardless of the underlying mechanisms.

However, someone came up with an interesting theory - based on relatively strong mathematical evidence - that the UCD list might be as short* as 9,600 days or so. It's almost unbelievable that it doesn't cycle (or else there's no level playing field), so this is the next major milestone we're going to come to. Let's hope, eh?


*Yeah, I know.

 

[gambleboyen]

I have one last idea, though at the same time it kinda sounds out there, but I'll do my best to explain in it in a manner that makes sense. Effectively what if its a calculator. Meaning regardless of what system or unit you use it on, it wil always equal the same thing. So, instead of having it presecripted exactly, its making its calculations exactly the same way each time because it has no other or ew variables to take into account as well as not properly being random. So basically saying, the computer is making up the list as it goes, but each and everyone's list will be exactly the same. It'd be like saying my calculator says 1024 multiplied by pi to the Nth power equals X. Well if you do the same thing on yours its going to come out the same. Its predictable, but not scripted. So either, I may have given people nightmares with that theory, I'm going to get laughed at, or worse, Kaz is just as weird as I am and actually iplemented something like that. If the first applies, sorry. But its just a theory. It would also give the idea that the list is random when its not, keep the lists consistent across all the different PS3s and also keep the list from repeating itself for quite possibly a very very long time if ever. It would also keep anyone from precisely planning when a car is going to show up to purchase it, as well as allow for a list that PD wouldn't exactly have had to make themselves (though I'm not sure how much thought process goes into that). Sorry for the long post.

I'm pretty sure you're on to something, and that all used cars have some sort of rarity rating that is used in the calculation of this sequence. For instance, I have had the opportunity to buy the Veyron at least 10 times that I have seen. But the Lambo Nomad I've only seen once. The Chapparal cars I have never seen yet.

 

[Mr. S]

BTW - you do not have to run the race. Just let the race load up and then exit....the UCD refreshes.

Even better: load up a license test, skip forward (so that you've seen 5 loading screens) - voila, 30 new cars in your UCD!

 

[HortusIX]

this thread interested me as it seems like people are trying to uncover some sort of conspiracy... and that's always exciting

just wondered, has anybody matched the new UCD cars to their corresponding number in the Official Car list (as published by PD) over a long period on a regular, non-interrupted basis?

i haven't read about it in this thread yet and so thought it might be worth a try if it hasn't already been done.
- for instance - ascertain which are the first 30 cars to appear in the dealership on day 1. check their number on official list. note those numbers down and keep them in a diary.
- do the same for day 2 when 6 new cars replace 6 of those from day 1.
note down the numbers of the 6 new cars.
- do the same for day 3, when 6 more new cars come into the garage and replace (i'd imagine) 6 of the oldest cars (those from the day 1 garage).
- keep doing this until you get a repeat of a car and then try to find a pattern in the differences between the numbers. it might be worth repeating the process until the garage repeats a few more cars before trying to find a pattern though.
it could be that the system which has been put in place simply skips a certain number from one car number to another. it could be a different number difference between each of the six cars as well.

it seems a very simple thing to do, so either it's been tried already, or it just wouldn't work because it's too simple...but i'm seriously considering giving this a go myself when i get some time as i like this sort of thing - it's painstaking and requires attention detail, a sharp mind and lots of patience.

i would guess that it might have something to do with a preset rarity rating though, like somebody has already mentioned. in which case it would be hard to ascertain which cars would show on, say, day 7693 without first going through that many game days to find out unless you know the system which is being used... i hope somebody finds out what it is, because it would be nice to know when a certain nugget is about to pop it's head in briefly to the UCD.

 

[Jack002]

Even better: load up a license test, skip forward (so that you've seen 5 loading screens) - voila, 30 new cars in your UCD!

Read post #23. It seems you can load ONE race ONCE, start it and end early for like 5 times (?) then have a whole new UCD, that's faster than going to the license tests and loading five different ones. (I'll have to test this, if it works, its faster than the licence test method)

 

[chances14]

Ultimately, how the list is generated - while interesting - is not a concern, because we only care about the end result: the list. The list is always the same regardless of the underlying mechanisms.

However, someone came up with an interesting theory - based on relatively strong mathematical evidence - that the UCD list might be as short* as 9,600 days or so. It's almost unbelievable that it doesn't cycle (or else there's no level playing field), so this is the next major milestone we're going to come to. Let's hope, eh?


*Yeah, I know.

i am getting close to that number as i am at 7500 days and still no cycle. we shall see...

Read post #23. It seems you can load ONE race ONCE, start it and end early for like 5 times (?) then have a whole new UCD, that's faster than going to the license tests and loading five different ones. (I'll have to test this, if it works, its faster than the licence test method)

yes it does work. i can cycle through roughly 400 days in 30 mins using that method

 

[glw]

i am getting close to that number as i am at 7500 days and still no cycle. we shall see...



yes it does work. i can cycle through roughly 400 days in 30 mins using that method

7500? Wow!

I'm at 3714 and looking for the Chaparral 2D Race Car '67. As far as I can tell my Day 1 is on Master List #1 Day 56+4.

Can you tell me when the 2D will show up next?

 

[Jack002]

Ok, where is this day number? I don't see one.

Also, I tried to load a race (I used curcuit de la sarthe) and get out and restart 5 times and the UCD didn't budge a bit. What did I do wrong?

 

[StevenDunn99]

Ok, where is this day number? I don't see one.

Also, I tried to load a race (I used curcuit de la sarthe) and get out and restart 5 times and the UCD didn't budge a bit. What did I do wrong?

On your save file.
Exit and re-enter NOT restart.

Read post #23. It seems you can load ONE race ONCE, start it and end early for like 5 times (?) then have a whole new UCD, that's faster than going to the license tests and loading five different ones. (I'll have to test this, if it works, its faster than the licence test method)

Over a minute faster per cycle.

 

[Jack002]

On your save file.
Exit and re-enter NOT restart.


Over a minute faster per cycle.

Ok, thanks!

 

[fasj6418]

I know it´s not a smart reply, but god, it shouldn´t be that hard.

What were they thinking?

We saw that small carroussel on GT PSP and hated. Couldn´t they change it?

The least they can do is release the whole used car cycle list so we can program ourselves to get the last cars we want.

 

[eSZee]

Even better: load up a license test, skip forward (so that you've seen 5 loading screens) - voila, 30 new cars in your UCD!

THat's actually slower than loading up one race, starting it, quitting, and restarting it 4 more times to completely refresh the UCD.



err whatever

 

[glw]

Ok, where is this day number? I don't see one.

Exit the game and go to the XMB under Game, click on Saved Data Utility... Scroll down/up to GT5 and wait for the text to pop up. It is the value next to Play Time:

Also, I tried to load a race (I used curcuit de la sarthe) and get out and restart 5 times and the UCD didn't budge a bit. What did I do wrong?

After loading the race, you need to start the race then quit back to the menu to get the UCD to change.

 

[glw]

7500? Wow!

I'm at 3714 and looking for the Chaparral 2D Race Car '67. As far as I can tell my Day 1 is on Master List #1 Day 56+4.

Can you tell me when the 2D will show up next?

OK. I guess patience worked!

The Chaparral 2D Race Car '67 showed up on my day 3811, the Nissan R390 GT1 Race Car '98 on my day 3810, and the Toyota Wedssport Celica '03 on my day 3808.

That was a pretty good cycle for my needed cars list!

 

[Biobunny]

Here's more confusion. What if one of the mechanism is determined by the races they do. I mean not many people buy the game to cycle through the lisence tests just so they don't really do any real races, sometimes you do races with supercars and later you challenge a Toyota Vitz. Some of you may think that this statement is incorrect but if it was there should also be more mechanics.

 

[sorg]

Car appearance in UCD is a function of some unique to PS3 value (PSID, MAC, whatever) and current day.
No other things are involved. I doesn't matter what cars you have, which track you raced, which care you've used and so on.

Function not exactly should be cyclic. It means it's possible that THERE IS NO PERIOD IN THIS FUNCTION.

but cycle also depends on resolution of argument (calculated from unique value and day). But even if size of argument is 16bit, we get 65k possible values. PS3 uses 64bit CPU. So it's possible that argument is 64bit-wide. It means, practically, no cycle at all.

 

[sorg]

To whom, who still believe that UCD cars depend on something else, there is simple test for you:
1) put save to USB
2) do something you thing can change cars in UCD. Write down cars you see in UCD.
3) restore save from USB.
4) do something again and then compare UCD cars from (2)

you will see that UCD cars will depend on only days passed and nothing else.

So stop spamming this thread by crazy theories unless you have real proof.

 

[HumanDestroyah]

When you stop looking for that particular car it will appear. That's the way of life (in GT5 too) it seems.

The second you run low on cash, poof there it is!