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Community => Simutrans Help Center => Topic started by: Vladki on September 01, 2012, 10:25:32 AM

Title: Three state presignals
Post by: Vladki on September 01, 2012, 10:25:32 AM
Hello all,

according to Wiki http://simutrans-germany.com/wiki/wiki/tiki-index.php?page=en_SignalsDef
presignals can have graphics for three states - red, yellow and green. However according to other tutorials, and my experience it shows just two states: red (or yellow according to pak graphics) and green. And green is shown only when the next signal is also in green state. So, what is the purpose of the third state?
Title: Re: Three state presignals
Post by: Ters on September 01, 2012, 12:18:58 PM
I get the yellow state when the next block is free, but the one after that isn't.
Title: Re: Three state presignals
Post by: Lubak91 on September 01, 2012, 12:40:14 PM
And why are not three state signals?
Title: Re: Three state presignals
Post by: Ters on September 01, 2012, 12:43:09 PM
Quote from: Lubak91 on September 01, 2012, 12:40:14 PM
And why are not three state signals?

What do you mean? I count to three: red for next block not free, yellow for next block free but not the one after that, and green for next two blocks free.
Title: Re: Three state presignals
Post by: AP on September 01, 2012, 03:33:25 PM
Is this pak-specific? The pak-gb ones (last I checked) had two visible states only.
Title: Re: Three state presignals
Post by: VS on September 01, 2012, 04:09:27 PM
After talking with Lubak, what he wants is that trains slow down on the yellow state.

Please note that I'm a bit out of loop regarding signals - just translating what has been said to enable actual discussion.
Title: Re: Three state presignals
Post by: Ters on September 01, 2012, 04:14:22 PM
Quote from: AP on September 01, 2012, 03:33:25 PM
Is this pak-specific? The pak-gb ones (last I checked) had two visible states only.
Nothing is stopping the pak maker from using the same image for more than one state. It's also possible that one of the states didn't work at the time the pak was made, and it has never been updated with a third set of images.
Quote from: VS on September 01, 2012, 04:09:27 PM
After talking with Lubak, what he wants is that trains slow down on the yellow state.
Don't think of them as presignals. They are meant for something else, namely reserve two blocks as opposed to just one.