Editing a GRF

[Slye_Fox]

Is there an Easy way to edit the UK Renewal set to change the introduction, and removal years of the train so they're at their propper real life years?

What tools will i need to do it?

[UltraNub]

Look, There is no easy way to do that (unless this was TTD) without using the good old notepad.

http://wiki.ttdpatch.net/tiki-index.php ... llbacks_1E_

[DeletedUser5]

good old notepad

There's no need to use notepad. Any other program that handles .nfo files can be used too. For decoding you need grfcodec.

[UltraNub]

good old notepad

There's no need to use notepad. Any other program that handles .nfo files can be used too. For decoding you need grfcodec.

Although that is an alternative to the original ways. Yeah, that would work.

(That does not include 'System Information' which also stores info in NFO format)

[Slye_Fox]

errrrrrrrrrr.......... you've both lost me.

[DeletedUser5]

Step by step tutorial:
1. Download grfcodec. I posted link in topic already.
2. Just enter grfcodec/./grfcodec ( first one if you use windows / second one if you use linux ) to see all available commends.
3. Enter "grfcodec-d *****.grf -p 2" to decode grf you want. As stars write grf name.
4. Now look on ttdpatch wiki. Links also were here.
5. Read it, do what do you want to do with grf.
6. Now encode grf. Enter that commend: "grfcodec -e *****.nfo". As stars enter nfo file name.
7. All commends enter in console
I hope it's understandable. But better tutorial on making grfs you'll find on ttdpatch wiki.

[Slye_Fox]

I allready got my file decoded, but i can't find what/how to edit the coding to set the years

[DeletedUser5]

I don't know that too. Read ttdpatch wiki and/or ask Dalestan

[Slye_Fox]

I found the thing i need to edit is on here:
http://wiki.ttdpatch.net/tiki-index.php ... on0General

But i've no idea where they are in the .nfo file

[DaleStan]

I dunno either. You have to find it. The wiki tells you everything you need to know.

[Slye_Fox]

All i see is a jumble of numbers and hexi code

Code: Select all

  229 * 7	 00 00 01 01 2F 27 07
  230 * 7	 00 00 01 01 39 27 07
  231 * 7	 00 00 01 01 3E 27 07
  232 * 7	 00 00 01 01 41 27 07
  233 * 9	 00 00 02 01 1B 27 03 1E 0B
  234 * 9	 00 00 02 01 1C 27 03 1E 0B
  235 * 9	 00 00 02 01 25 27 03 1E 0B
  236 * 13	 00 00 03 01 25 00 00 00 09 FF FF 06 03
  237 * 13	 00 00 03 01 1B 00 00 00 09 FF FF 06 03
  238 * 13	 00 00 03 01 1C 00 00 00 09 FF FF 06 03
  239 * 15	 00 00 05 01 1B 12 FD 17 56 1C 0F 16 23 14 28
  240 * 15	 00 00 05 01 1C 12 FD 17 48 1C 08 16 20 14 23
  241 * 15	 00 00 05 01 25 12 FD 17 48 1C 08 16 20 14 1E

[DaleStan]

Obviously you did not read (enough of) the wiki, as if you had, it would have become abundantly clear that that is exactly what you are supposed to see.

Find the vehicle's ID (either by name or graphics) then find its action 0s, then edit them.

[Slye_Fox]

I can't be bothered anymore, it is just too much of a hasstle.

And i know that's what i suposed to see.
What i'm saying, is that it makes zero sence to me.

[michael blunck]

it makes zero sence to me.

Obviously. But reading the Wiki, as Dale pointed out, would turn zero to a much higher number, believe me.

OTOH, it´d indeed less "hassle" to do nothing.

regards
Michael

[Gonozal_VIII]

use grf2html, that generates a html file out of the grf, in that html you can search for the line that contains the things you want to change

[Bilbo]

What tools will i need to do it?

You can directly use a hex editor. Using grfcodec is usually slightly easier, though the difference is pretty small :)

use grf2html, that generates a html file out of the grf, in that html you can search for the line that contains the things you want to change

There are also some atempts to convert NFO to something more human readable, like:
NFO2 language: http://www.tt-forums.net/viewtopic.php?f=26&t=35541
GRL language: http://www.tt-forums.net/viewtopic.php?f=26&t=35535
Newgrf Description Language (NDL): http://www.tt-forums.net/viewtopic.php?f=26&t=35497

Though none of the ttempts lived long enough to produce some usable (de)compiler for NFO

[DaleStan]

What tools will i need to do it?

You can directly use a hex editor. Using grfcodec is usually slightly easier, though the difference is pretty small

No, the difference is quite large. There's no reliable way to detect an end-of-sprite in the GRF, except by reading all previous sprites. For early sprites, this is OK (The most recent ttdpbase[w].grf, for example, was generated by hex-editing the previous one) but for later sprites it's rather a lot of bother, and quite prone to failure, especially in the real sprites.