Adding new vehicle graphics

Dinges · Post by **Dinges** » 28 Apr 2003 14:48

Patchman wrote:You need to start a new game, or use "Cht: ResetVehicles". The date and climate aren't reset otherwise.

I always start a new game to test something, but what I asked is this:

How does that propery count the years?

Patchman · Post by **Patchman** » 28 Apr 2003 15:33

It counts days since 1920. And for each new game, it has a random amount of 2-18 months added to it.

SHADOW-XIII · Post by **SHADOW-XIII** » 28 Apr 2003 16:55

1) Patchman .... I was thinking about running cost with waggons ....
if you could replace all of waggons by some kind of mixed engines and waggons ??

2) and my important question ... I was thinking about new program (or plugin for TTDPatchStarter) ... GRF editor (changing all settings of vehicles in my program, maybe possibility of painting there

..
anyway ... I was thinking... is it possible to edit GRF's "on the fly" or I have to always extract file ..

3) how could be hard to add negative years (count, to add possibility to play years before 1920)

Dinges · Post by **Dinges** » 28 Apr 2003 17:01

Patchman wrote:It counts days since 1920. And for each new game, it has a random amount of 2-18 months added to it.

You should add that line to sprites.txt so anybody that reads it understands

Patchman · Post by **Patchman** » 28 Apr 2003 23:19

SHADOW-XIII wrote:1) Patchman .... I was thinking about running cost with waggons ....
if you could replace all of waggons by some kind of mixed engines and waggons ??

2) and my important question ... I was thinking about new program (or plugin for TTDPatchStarter) ... GRF editor (changing all settings of vehicles in my program, maybe possibility of painting there ..
anyway ... I was thinking... is it possible to edit GRF's "on the fly" or I have to always extract file ..

3) how could be hard to add negative years (count, to add possibility to play years before 1920)

1) No.
2) If you can parse the .grf file format, you can edit it on the fly. Just look at the source code for GRFCodec, or link it into your program.
3) No, doesn't support negative numbers. For example, "-1" is "FF FF", which would instead be interpreted as 65535 days.

Dinges · Post by **Dinges** » 29 Apr 2003 07:26

Maybe we can make engines with capacity which have 0 power and 0 speed, will this work?

Patchman · Post by **Patchman** » 29 Apr 2003 14:12

If you give them 1 hp they will be engines. With 0 hp they will be waggons.

SHADOW-XIII · Post by **SHADOW-XIII** » 29 Apr 2003 14:13

Patchman wrote:If you give them 1 hp they will be engines. With 0 hp they will be waggons.

so TTD that way recongnizing engines and waggons ?? lol ...

Patchman · Post by **Patchman** » 30 Apr 2003 00:59

Well, no, TTD goes by the vehicle number. First 27 are engines, next 27 are waggons and so on. I changed it to use the power instead.

SHADOW-XIII · Post by **SHADOW-XIII** » 30 Apr 2003 10:35

so it won't be IMPOSSIBLE to create running cost for waggons ... TTD still can recognizing it by HP but instead of waggons it can use "another_engine_waggon" type ....

Dinges · Post by **Dinges** » 30 Apr 2003 10:42

SHADOW-XIII wrote:so it won't be IMPOSSIBLE to create running cost for waggons ... TTD still can recognizing it by HP but instead of waggons it can use "another_engine_waggon" type ....

You mean a engine with 1 hp?

SHADOW-XIII · Post by **SHADOW-XIII** » 30 Apr 2003 11:19

NO ... new type of part vehicles .... it still would have 0 hp .. but only running cost would be added there

uzurpator · Post by **uzurpator** » 30 Apr 2003 14:13

well I once added hp via hex editor to the waggons and ttd didn't notice enything bat patch properely added power of the whole train. But I tried to same with grf coding and came up with nothing so i assume that Patchman simply made certain properties inactive for waggons. Am i right? (more or less?)

uzurpator · Post by **uzurpator** » 03 May 2003 16:03

Patchman: Could you explain how shortened vehicles are calculated in station loading time?
eg 4 length 0.5 cars are the same as 2 full length cars or 4 full length cars?

Patchman · Post by **Patchman** » 03 May 2003 16:21

The only thing that shortened cars makes a difference in is when the train leaves the depot, the vehicles are closer together, thus making them look right. It's 100% eye-candy.

[Actually, it also modifies how a train reverses, because now the vehicles can't just switch positions, but that's a technicality...]

uzurpator · Post by **uzurpator** » 03 May 2003 16:35

Thanks

This eye candy will have major gameplay impact once I finish the tropic set

EDIT:

Warning to all who want to create ttd graphics. Dunno if it is only me but TTD does not like odd numbers when it comes to sprite sizes.

EDIT 2.0

It is actually pcx file size - if the base image has odd numbers (such as 27x41) then sprites will come up scrambled. It is better to use non-odd size for the image the sprites are drawn on (for example 28x42). Sprites themselves can be of odd size.

Hyronymus · Post by **Hyronymus** » 14 May 2003 12:41

Did anyone of you ever analyze the vehicle prices? They are all even numbers! Maybe CS had difficulty with odd numbers...

John Clark · Post by **John Clark** » 15 May 2003 16:16

hi guys

what's about a zeppelin? Like that in the game? It has to be a kind of helicopter but the real problem is the landing of it. Where does it has to stop? It's too large, or not?

If I would be a good painter I would make it. But I'm not... (unfortunately; I admire MB and Dinges and Marcel and Andreas and ... )

It was only an idea.

SHADOW-XIII · Post by **SHADOW-XIII** » 15 May 2003 17:05

Brilliant idea ... we can use existing zeppelin sprite to create zeppelin
if/when we will create PLANESET

Patchman · Post by **Patchman** » 16 May 2003 04:31

You could probably make the landing / taking off look very realistic by using variation sprite IDs, that make it look different depending on the stage of ascent / descent it's at.

But you'd still have to draw it...

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Adding new vehicle graphics

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