planet-generator

Download link if you want to quickly run the program: https://github.com/MagicalDrizzle/planet-generator/archive/refs/heads/main.zip

HTTPS mirror of Torben Mogensen's planet generator along with modifications I and others made.
Original site (warning - no https support): http://hjemmesider.diku.dk/~torbenm/Planet/

• planet.c: Torben's original code. Current version: September 2023.
• planet_mod.c: The modified code.

Note: MSVC is unable to compile the original code.
I have managed to modify the code in planet_mod.c to be compile-able by MSVC.
How I usually compile the program: gcc -O2 -Wall -Wextra -lm planet.c -o planet.exe && strip planet.exe

Warning: Currently this program depends on at least one color file in the executable directory, for when you don't specify any color files at all (ie. the default). Currently it is Olsson.col.
You can change which default file the program use in the code, but there's currently no way to embed the file into the program itself (ie. standalone).
More information: https://topps.diku.dk/torbenm/thread.msp?topic=392461439

char filename[256] = "planet-map";
char colorsname[256] = "Olsson.col"; /* << change that */
int do_file = 0, tmp = 0;

Changes from the original code:

• Double orthographic projection with -pO by Riviera71: https://topps.diku.dk/torbenm/thread.msp?topic=218566649
• Addition of Ian Mallet's Climate Simulator biomes color scheme (uses -Z instead of -z).
• Better version information printing (program will now exit after printing).
• A little progress bar showing progress on creating planets (mostly adapted from Torben's old debug code).
• Basic help information, accessible with planet -1.
• A bunch of rewriting declarations and definitions to be more compliant with modern C.
• Able to be compiled by MSVC.

All my changes are released to the public domain, mostly because I didn't change much of anything...

Original readme file with copyright information

ReadMe file for the planet generating program "Planet".
Copyright 1988-2009 Torben Æ. Mogensen


Copyright notice:

The program and manual are the copyright of Torben Æ. Mogensen.

The program and its sources are provided free of charge for use,
modification and redistribution for anyone who might want to do so.

Redistribution of the program or parts or modifications thereof in any
form must contain the original copyright notice and must in no way
restrict distribution of other versions of the program over what is
stipulated in this copyright notice.

Maps produced by the program are not copyrighted.


Disclaimer:

The program is provided "as is" and no guarantee of correctness or
usefulness is given.  The author accepts no responsibility for any
problems you may encounter during use of the program or maps generated
by the program.


Installation:

The program and a number of files (including this manual) are provided
in a Zip file called "planet.zip".  Extract this using e.g. WinZip (on
Windows) or unzip (linux/unix).

A makefile is provided for compiling the program, so if you have make
installed on your computer you can just write "make all" to compile
the program.  If not, you can use the following simplified method:

How to compile the program:

On a unix platform, just write

	cc planet.c -o planet -lm -O

or, if using Gnu C (GCC)

	gcc planet.c -o planet -lm -O

If you have GCC (e.g., DJGPP) installed on a Windows machine, the same
method can be used, but the executable should be named "planet.exe"
instead of just plain "planet".  If you have another C compiler, just
compile the way you normally do.

Enquiries and error reports can be sent to torbenm@diku.dk.

Acknowledgements:

I thank Jim Burrows for contributions to the code.

Additional copyright information on Torben's website

Both the program itself and maps created by the program are free for use,
modification and reproduction, both privately and for commercial purposes,
as long as this does not limit what other people may do with the program
and images they produce with the program.

For example, you can not copyright an image produced by the program unless
you have substantially modified it afterwards, because other people might
use the same parameters as you used to produce the same image.

If you add code to the program that you do not wish to share, you can claim
copyright for the code you write yourself, but that does not extend to the
program as a whole.

If you are in doubt about any particular use, you are welcome to contact me
using the email address at the bottom if this page.  

Torben Mogensen  
DIKU, University of Copenhagen, Universitetsparken 5, DK-2100 København Ø  
E-mail: torbenm@di.ku.dk Telephone: (+45) 21 84 96 72 Fax: (+45) 35 32 14 01