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Topic: Slower vehicles on diagonals (Read 19811 times) previous topic - next topic

Slower vehicles on diagonals

With the attached patch, vehicle on diagonals will travel only at 0.75 speed. That will make them more similar to the true 1.41...=sqrt(2) speed. Without the vehicles were way too fast on diagonals.

However, this will affect graphics. The ridicilous stretching in SW/NE would be gone too. Actually the very old vehicles of pakHAJO have already nearly correct length. (The correct length is the lower row, labled 2/3.)

Re: Slower vehicles on diagonals

Reply #1
Quote
vehicle on diagonals will travel only at 0.75 speed.

That's a pity, it made diagonal track very useful  ;D. Unfortunately you are right, it is better...
Bob Marley: No woman, no cry

Programmer: No user, no bugs



Re: Slower vehicles on diagonals

Reply #2
This is really great!!!  ;D

I need to adjest the length of all the pak128.Japan vehicles, suitable for this.  :D

Re: Slower vehicles on diagonals

Reply #3
Yes, that'll be a lot of redrawing  :( ... but probably more than worth the effort.   :D
  
***** PAK128 Dev Team - semi-retired*****

Re: Slower vehicles on diagonals

Reply #4
Ok, then I will do more debugging. Last time I asked about this, there was less enthusiasm.

Let's make realistic vehicles in all views ...

Re: Slower vehicles on diagonals

Reply #5
I'll have to see and try it before I can give my final judgement - but it sounds great! So, go prissi, go!  :D
  
***** PAK128 Dev Team - semi-retired*****

Re: Slower vehicles on diagonals

Reply #6
As far as I can see on the screenshot it's absolutely wonderful! Can't wait to use it.

Re: Slower vehicles on diagonals

Reply #7
This is something I've wanted for ages in Simutrans, much more realism, would go really well with an enhancement to switches to improve the look of diagonal ways.
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Re: Slower vehicles on diagonals

Reply #8
I am soo stupid: The correct value (sqrt(2)) is easily appromimated, and faster too. Just wait before changing all your vehicle for a little longer please.

Re: Slower vehicles on diagonals

Reply #9
Don't worry. At least I am not going to start before I have the new system running here in its "final" form. (As a pixel-pusher I have learned that much patience  ;D)
  
***** PAK128 Dev Team - semi-retired*****

Re: Slower vehicles on diagonals

Reply #10
Good work there, Prissi, even if needs one more change :)

Re: Slower vehicles on diagonals

Reply #11
In r1978, the vehicle speed on diagonals seems to be 0.724. But why isn't it 0.707 (correct value)?
I'm sorry, if there is a technical reason, but I'm simply curious.

Re: Slower vehicles on diagonals

Reply #12
It is to avoid a division. 724 is 1024*sqrt(2)=724. Instead of a division, I can shift 10 to the right ... 707/1000=724/1024 (which the rounding error of course).

Re: Slower vehicles on diagonals

Reply #13
Thanks for the answer, I really need to study programming...

Re: Slower vehicles on diagonals

Reply #14
Actually, better keep to making nice drawings. Much better than anything I could produce ...

Re: Slower vehicles on diagonals

Reply #15
I've tried the feature in the nightly and it is great!  Everything looks more natural now.  Thanks, Prissi.

Re: Slower vehicles on diagonals

Reply #16
Anybody who tried this in the nightly: The savegames created there will not readable with 1983 and up. But now the length on a diagonal can be configurable, from the simuconf.tab in the pak/config folder (and only there) by "diagonal_length=512 (old resp. 724 (new default)

Re: Slower vehicles on diagonals

Reply #17
Isn't it "diagonal_multiplier = 512"?


*Edit*

When I use "diagonal_multiplier = 512", the vehilce movement on diagonal tracks is not as smooth as past versions... Isn't this avoidable?

Re: Slower vehicles on diagonals

Reply #18
This is a calculation error ...

Re: Slower vehicles on diagonals

Reply #19
This patch cause me a problem : in my project MLM dev., diagonal vehicles are stretched to avoid spaces between vehicles as explained in this picture :


So the question : Have I to continue stretching vehicles or reduce their length as a normal vehicle of pak128 European ?

Re: Slower vehicles on diagonals

Reply #20
If I understood correctly, the new default will be that the vehicles can now be shorter on diagonals since most vehicles in pak128 (and pak64) were not stretched for that view any way. But I guess the final word on that has to come from the PAKset-maintainers. But if it comes as I have said, and your vehicles were already stretched for the old version, then yes, you'd have to either shorten them, or live with some graphical errors happening (tried it with my Shinkansen trains - it's there, but the error wasn't that bad. So updates can wait a little, but I think I will shorten them to fit in the new system soon.)

Just try for yourself - once you know what pak128 will do.
  
***** PAK128 Dev Team - semi-retired*****



Re: Slower vehicles on diagonals

Reply #23
I haven't started yet, but what I'll probably do is make up some dummy graphics (just one wagon a red rectangle, the next a yellow rectable of the approximate size and then just do it by trial&error, using screenshots. (That's how I usually check my creations for detail and/or positioning issues (of course as soon as I have it done once, I'll take the measures from that prototype. And if you take the length-settings into accout, that's usually working well enough for all vehicles.)
  
***** PAK128 Dev Team - semi-retired*****

Re: Slower vehicles on diagonals

Reply #24
It should be 64/sqrt(2) of the full length, I think which is 45.3. THus to have overlap use 46, for loose coupling use 44. But I would wait until a maintainer of pak128 spokes up.




Re: Slower vehicles on diagonals

Reply #28
Sorry, I donĀ“t write it  to everybody  :D
I hope you understand my English


Re: Slower vehicles on diagonals

Reply #30
Just got to check it for the first time...

looks a bit strange at first - I guess one is simply used to the "wrong" images. But after a couple of minutes I really started to like it - well done, prissi!

But it's going to be so much work...  :P
  
***** PAK128 Dev Team - semi-retired*****

Re: Slower vehicles on diagonals

Reply #31
It can be switched off anyway from pak128/config/simuconf.tab ...

Re: Slower vehicles on diagonals

Reply #32
I tried to do that (just for testing) - and it didn't work.

Didn't bother me enough to dig any deeper, because I am already convinced of the new system. (=Maybe I did it wrong).
  
***** PAK128 Dev Team - semi-retired*****

Re: Slower vehicles on diagonals

Reply #33
diagonal_length=1024 in the config file in the pak/config (and only there!)

Re: Slower vehicles on diagonals

Reply #34
Yes, that works. I tried with 512  ::)
  
***** PAK128 Dev Team - semi-retired*****