Tramroads for OTTD

athanasios · Post by **athanasios** » 27 Feb 2007 07:17

Tram is light rail train. Only difference from train is its tracks. So cargo is acceptable.

From Wikipedia for Athens metro (I translated and made a summary):
In 1911 were bought from "Gοοssens" 2 "SteepΙe-cab" type hybrid trains that could be supplied both from third rail and tram cable, to carry cargo from the port!

So it is not something new

Trams should be under train menu, not road vehicle menu, it is wrong!!!
Thanks OczeQ. And nice graphics almost ready to be coded there.

Quark · Post by **Quark** » 27 Feb 2007 09:11

athanasios wrote: Trams should be under train menu, not road vehicle menu, it is wrong!!!

Trams is under road menu because of the way they can be builded. You can't place diagonal tramroads for example and they share road with road vehicles.

charlymorton · Post by **charlymorton** » 27 Feb 2007 12:47

athanasios wrote:Tram is light rail train. Only difference from train is its tracks. So cargo is acceptable.

The Manchester trams run on standard gauge rails and is actually connected to the National Rail network, so at least in theory the trams could "escape" the tramlines and run on the normal rail network.
A mate of mine who's a tram driver has confirmed this.

Brianetta · Post by **Brianetta** » 27 Feb 2007 17:12

charlymorton wrote:
athanasios wrote:Tram is light rail train. Only difference from train is its tracks. So cargo is acceptable.
The Manchester trams run on standard gauge rails and is actually connected to the National Rail network, so at least in theory the trams could "escape" the tramlines and run on the normal rail network.
A mate of mine who's a tram driver has confirmed this.

Same goes for the Croydon Tramlink.

Psistorm · Post by **Psistorm** » 27 Feb 2007 17:20

this is confirmed for the trams in my hometown. standard gauge and - whats special about them - run on both AC and DC current. they do drive on mainlines, connecting the towns here, then divert to the inner city tramways at the end of the journey.

running trams on a mainline would be interesting, but a way needs to be coded to allow trams to drive on these tramrails, but prevent regular trains from it (imagine an ICE driving through a downtown area xD)
also it needs to be considered if it is a worthy choice, gameplay-wise. it would definitely make for some very interesting options, but it would also need a special piece of track to convert standard-gauge tramroads to normal railway.

one could, for example, connect the inner-city tram network of two towns by using a piece of already existing mainline. to make this easier, there should be speed limits for trams (aka no more than 50 km/h on tramroads, but about 100km/h on mainline rail, as for example, the aforementioned "Karlsruhe" trams do it)

Ameecher · Post by **Ameecher** » 27 Feb 2007 17:22

I suppose at some point, we (the british tram set) ought to look into trying out our aRVs in OTTD. Keep up the good work.

athanasios · Post by **athanasios** » 27 Feb 2007 17:42

Quark wrote:
athanasios wrote: Trams should be under train menu, not road vehicle menu, it is wrong!!!
Trams is under road menu because of the way they can be builded. You can't place diagonal tramroads for example and they share road with road vehicles.

From resent posts seems that we 'll have trams go on ng rails too. At least 3 new types of vehicles are needed:
1. Hybrid third-rail and overhead tram-line wire vehicle.
2. Hybrid third-rail and overhead train-line (electrified) wires vehicle.
3. Hybrid overhead tram-line wire and overhead train-line (electrified) wires vehicle.

A lot of coding I suppose will be needed to fix it...

Anyone willing to to it? Quark is already doing to much with "MiniIn" revival, and we thank him.

Quark · Post by **Quark** » 27 Feb 2007 18:18

athanasios wrote:Quark is already doing to much with "MiniIn" revival, and we thank him.

O, thanks

By topic: I think that it's not necessary to have possibility to run tram on normal rails. Firstly, tram rail have different scale, secondly, you can build tramroads out of town, and thirdly, to much effort needed to code that feature.

P.S. Did you think about double rails on one tile?

Celestar · Post by **Celestar** » 28 Feb 2007 08:46

Hi Valence,

i've done a code-level review, here are my findings. Feel free to discuss.

Celestar

Darkvater · Post by **Darkvater** » 28 Feb 2007 10:12

Celestar wrote:Hi Valence,

i've done a code-level review, here are my findings. Feel free to discuss.

Celestar

Just a single addition to the NOT_REACHED() suggestion. You usually use it as "default: NOT_REACHED();". If the switch's cases initialize some variable, put the default on top without a break so it will cascade down. Since asserts are only used for programming errors and NOT for validating user-input all problems will (hopefully) be noticed in time for the next major release.

Digitalfox · Post by **Digitalfox** » 05 Mar 2007 02:58

So Valence how's work on Trams going ??

Any more screenshots for us??

Post by **peter1138** » 05 Mar 2007 07:47

Celestar wrote:Trambits should be in the same place as roadbits and then just use the already-existing RoadType.
Store the RoadType in the map (whereever you want)

The bits have to be stored separately if you want mixed road and tram tiles...

athanasios · Post by **athanasios** » 06 Mar 2007 08:26

Quark wrote:By topic: I think that it's not necessary to have possibility to run tram on normal rails. Firstly, tram rail have different scale, secondly, you can build tramroads out of town, and thirdly, to much effort needed to code that feature.

P.S. Did you think about double rails on one tile?

If I wasn't clear I am sorry. I was referring to third rail tracks or narrow gauge. Not standard truck which is wider. Nevertheless is to much work as you said. For the very distant future if ever.

Celestar · Post by **Celestar** » 07 Mar 2007 11:44

peter1138 wrote:
Celestar wrote:Trambits should be in the same place as roadbits and then just use the already-existing RoadType.
Store the RoadType in the map (whereever you want)
The bits have to be stored separately if you want mixed road and tram tiles...

Ok you're right and I stand corrected, but then we need two different GetTileTrackStatus functions.

Celestar

Dragon · Post by **Dragon** » 07 Mar 2007 16:02

athanasios wrote:Tram is light rail train. Only difference from train is its tracks. So cargo is acceptable.

From Wikipedia for Athens metro (I translated and made a summary):
In 1911 were bought from "Gοοssens" 2 "SteepΙe-cab" type hybrid trains that could be supplied both from third rail and tram cable, to carry cargo from the port!

So it is not something new

Today ( 7 of march) Amsterdam started with a test to see if cargo with trams profitable. They want to reduce the number of trucks in the old city centre by replacing them with special trams. (they mainly transport goods)

Toni Babelony · Post by **Toni Babelony** » 15 Mar 2007 10:42

How's the development going? Is there actually support for Articulated Road Vehicles in OTTD? If not it will be difficult to use the Hiroshima Tram Set in OTTD...

Johnny B Goode · Post by **Johnny B Goode** » 18 Mar 2007 20:30

This extension is beautiful. People need to build more tram grfs, and hopefully the devs will incorporate this into trunk. Just a nitpick. Could you make it say tramways instead of tramroads? And the celebration newspaper and the windows call it a bus instead of a tram.

Octopussy · Post by **Octopussy** » 19 Mar 2007 11:26

Valance, Wake Up !

Dragon · Post by **Dragon** » 20 Mar 2007 10:01

Follow the white rabbit

sorry, i've seen the matrix to many times

Octopussy · Post by **Octopussy** » 20 Mar 2007 14:07

peter1138 wrote:
Celestar wrote:Trambits should be in the same place as roadbits and then just use the already-existing RoadType.
Store the RoadType in the map (whereever you want)
The bits have to be stored separately if you want mixed road and tram tiles...

I am trying to clear the code.
The problem is there is already a RoadType Structure... :

Code: Select all

typedef enum RoadTypes {
	ROAD_TYPE_NONE,
	ROAD_TYPE_NORMAL,
	ROAD_TYPE_LIGHTRAIL,
	ROAD_TYPE_ALL
} RoadType;

And we need to create another one for tram.. :

Code: Select all

typedef enum RoadTypes {
	ROADTYPE_ROAD = 0,
	ROADTYPE_TRAM = 1
} RoadType;

Is it possible to mix them ?

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Tramroads for OTTD

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