NML - a Newgrf Meta Language

[planetmaker]

EDIT: removed code which only works for some corner cases. See Yexo's posting below for a proper solution.

[Yexo]

While that works, it's a hack and the proper code also works:

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    graphics {
        0xFF: toyland_passenger_rail_group;
        normal_passenger_switch;
    }

Code from ogfx-trains, modified to always use the toyland graphics in the menu.

[dandan]

I would have sworn I tried that and it did not work, but of course it does.

Thank you both.

[xenon]

how to install it???

[Kogut]

Morning all!

I have decided to see if i can give NewGRF-ing a go, but am struggling to install it properly
Is there a guide or even just a list of packages needed to install?
I'm on ubuntu 10.04 (10.10 coming soon! )

PS i have read the reference.htm

python
python-imaging
ply (from http://www.dabeaz.com/ply/ )

I hope I didn't forget anything.

[planetmaker]

how to install it???

The documentation has an as comprehensive guide as we could come up with http://hg.openttdcoop.org/nml/raw-file/ ... stallation

[Lord Aro]

I didn't see that last time i looked!
When was it added? Or did i just miss it?

[xenon]

i red the docs but still don't get it. i have python,pil, but how to install ply and mnl in windows x64?? i get error messages every time i trying to run setup.py via IDLE

[planetmaker]

You install them by fixing the errors.

My answer is as precise as your question.

[xenon]

ok. i should rephrase my question. where should place the files?? how to properly execute setup?? with which program?? i don't have ANY expireince with python.
iget this when trying to run the setup via python

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Python 2.7 (r27:82525, Jul  4 2010, 09:01:59) [MSC v.1500 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> ================================ RESTART ================================
>>> 

Traceback (most recent call last):
  File "C:\Python27\Scripts\setup.py", line 34, in <module>
    scripts=['nmlc'],
  File "C:\Python27\lib\distutils\core.py", line 140, in setup
    raise SystemExit, gen_usage(dist.script_name) + "\nerror: %s" % msg
SystemExit: usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
   or: setup.py --help [cmd1 cmd2 ...]
   or: setup.py --help-commands
   or: setup.py cmd --help

error: no commands supplied
>>> 

[Alberth]

Open a command window (start->run...-> cmd)

In the command window, go to the directory with setup, and run it with python:

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> cd \path\to\ply-x.y
> python setup.py install

You can do the same with nml, but it is not needed, as you need the terminal window also for running nmlc, and at that time, the directories are set up such that it also works without installing.

To run nml:

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> cd \path\to\nml-x.y
> python nmlc --help

Gives help, I think you need 'nmlc --grf myfile.grf myfile.nml' to convert 'myfile.nml' to .grf. You can also output .nfo files.

Edit: fixed some white spaces, and the \path\to\nml-x.y

[xenon]

thanks. i think i get now. i'll write if i'll have any other questions.

how to create lang file?? how to create palette to my sprite?? do i need to do this??

[Kogut]

how to install it???

The documentation has an as comprehensive guide as we could come up with http://hg.openttdcoop.org/nml/raw-file/ ... stallation

There is Python Imaging Library 1.1.7 for Python 2.6 but not for 2.7. Is it safe to use python 2.7?

EDIT: Answer:No.

[Kogut]

how to install it???

The documentation has an as comprehensive guide as we could come up with http://hg.openttdcoop.org/nml/raw-file/ ... stallation

Binary instalator of PIL is crashing on windows 7. How can I get files installable by:

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python setup.py install

?

[Eddi]

how to install it???

The documentation has an as comprehensive guide as we could come up with http://hg.openttdcoop.org/nml/raw-file/ ... stallation

There is Python Imaging Library 1.1.7 for Python 2.6 but not for 2.7. Is it safe to use python 2.7?

EDIT: Answer:No.

rule of thumb: if the libary interfaces to C/C++/other language code, then not, unless you compile yourself. if it only consists of python code, then it is probably fine (but in rare cases needs updating for some language features)

[Alberth]

I just checked, PIL does use compiled libraries of its own at my linux system. It is probably the same at Win* systems.

If you want to use 'python setup.py install' (that is, install PIL from source code), you must at least download the PIL source code and install the same compiler as used for building the python.exe . If PIL needs other libraries to be available, you must install those first.

The distutils module (part of the python library, comes with python.exe) used by setup.py will compile the libraries, and install the PIL pytlhon code.


I would be surprised if you are the first with a crashing PIL installer, perhaps you should ask at some PIL group/channel/forum about it?

[Ammler]

There is a binary for 2.7, this doesn't work?
http://effbot.org/downloads/#pil

[oberhümer]

I have two complaints (both with NML r1047):
1. This is probably more serious: a language file was not recognized. I put it in the "lang" folder, set it up according to the documentation, saved it in UTF-8 encoding, but I still got an error message about an undefined string. solved
2. Less important: NML can't handle numbers in railtype names. This makes it hard, if not impossible, to make third rail (3RDR) vehicles.
3. Another thing cropped up: I could not make a road vehicle be introduced in any climate.

Test code can be found in the attachment.

...Well, now it's decided not to work at all (in the very newest version). The error can be seen in the screenshot.

[planetmaker]

2. Less important: NML can't handle numbers in railtype names. This makes it hard, if not impossible, to make third rail (3RDR) vehicles.

Confirmed. That's nasty.

3. Another thing cropped up: I could not make a road vehicle be introduced in any climate.

Your example fails to use bitmasks in a few places:

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		refittable_cargo_classes: bitmask(CC_PASSENGERS);
		callback_flags: bitmask(VEH_CBF_REFITTED_CAPACITY);

The climates work for me:

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		climates_available: bitmask(CLIMATE_TEMPERATE, CLIMATE_ARCTIC, CLIMATE_TROPIC);

or alternatively

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		climates_available: ALL_CLIMATES // note that it's not climates_all and no bitmask there

With these changes, and changing 3RDR to something starting with a letter it compiles for r1072 (db155332df58) and I don't see anything further which is obviously wrong and climate declaration works for me in OpenGFX+Trains; the attached nml works for me. Note that I removed the sprite_id: SPRITE_ID_NEW_ROAD_VEH and re-defined an arbitrary vehicleID as I don't have any graphcis.

[oberhümer]

Thanks for the help. I'll see if it works now.
(It does. Seems the problem was my Python installation.)

However, I have another small problem: the way language files begin seems to have changed from "lang: XX" to "##grflangid XX", and the documentation doesn't seem to have noticed. E.g.: I have no idea which numbers to use, the IDs seem to be completely different (at least 7F or 127 does not mean "default").