#openttdcoop

There is another big game on Alanin’s server – large scale europe map.

It’s a new game type we want to try with our community. Goals are – realistic functionality and eyecandy looks. Where possible – based on historical/geographical data and very minor landscaping (aside of breaking long bridges). The end result should not look exactly as current europe railway map, but it should feel close to that, being combined cargo and pax game.
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As you may have recognised, we have some problems with the latest Nightlies of OpenTTD (beginning with r10300 and higher).
The problem is a desync of the game due to the YAPF of trains. The devs are already looking at this problem and started their work:

-Codechange [YAPF]: added DEBUG_YAPF_CACHE macro that (when set to 1) allows to track YAPF “cache errors”. They are probably responsible for current MP desyncs. (thanks Rubidium for this great idea!).
I will deal with those errors/desyncs tomorrow.

I hope they will be able to fix the problem tomorrow.
Unfortunately we can’t revert to an older revision because the savegame version changed and we can’t load them with older revs.

Update:
Good News! The Problems with YAPF will be fixed with the next nightly release.

Commit by KUDr :: r10394 /trunk/src/yapf/yapf_costrail.hpp:
-Fix [YAPF]: MP desync caused by incorrect last-red-signal penalties applied when cached segment was reused. Players that connected more recently (didn’t have these segments cached yet) calculated those penalties correctly. This caused different YAPF results.

Hurraaaay…
we finally released the #openttdcoop – NewGRF package v5.
There are a lot of changes since v4:

• added Serbian standard rail set
• added Thgergo’s bridges
• added new bridges
• updated av8
• added some the Tram Sets
• added Canadian Stations

For more details you might also want to check the Package History

Downloads:

• Zip: Download (10 MB)
• Rar: Download (8.6 MB)
• 7-Zip: Download (7.8 MB)
• tar: Download (10 MB)

You can find more Information on our Wiki-Page and enjoy gaming with the newest release of the #penttdcoop NewGRF Package.

After more than a week of abstinence caused by the reparation of my PC I want to give you some details about the Grand Southern Station of the Public Server Game #44. The Station handles 343 trains*, because all primary tier and secondary tier trains go through one big station area and use it to unload. The unloading consists of 34 platforms separated into 3 major areas (2x 12 platforms; 1x 5+5 platforms), because we have 3-track mainline. To ensure a high flexibility all incoming tracks can access all areas (orange: 1, 2 & 3). We used the Shift Mainlines Concept in this network and therefor I gave some penalties to some intersections of major areas, otherwise they would’ve been jammed very fast. In fact, I had to balance the SML-like traffic.
After the unloading platforms, I had to split primary and secondary tier trains. Primary trains just go back to their stations, but i.e. empty goods trains should load directly goods afterwards and transport them to the northern station (the secondary tier trains are never empty idea).
Finally I mixed all trains again and joined them again to a 3-track-mainline. The final joiner is a very compact 9>3 joiner. It misses some flexibility, but the practise showed it works very well and fluid. XeryusTC added some priority lines which smoothes the train traffic.
It took me almost the whole game to build, balance and optimise this station.
So here is my little warning:

Don’t try this at home 🙂

* the number of trains is quite relative depending on the type of map and size
in this case ~65 trains entered the station per month

We have prepared a testing version (5beta), mostly with trams. For those, who don’t like to download to much, there is also a update pack with about 2 Megs. Enjoy the new grfs…