The current stable version is 0.18.0
You can generate worlds data (heighmap, biome, etc.) and images for your own worlds.
For example:
# WorldEngine
worldengine world -s 1 -n seed1
# Lands 0.5.1 or next
lands world -s 1 -n seed1
# Lands 0.5.0 or previous
python lands/generator.py world -s 1 -n seed1Worlds are generated using plate simulations, erosion, rain shadows, Holdridge life zones model and plenty of other phenomenons.
Once a world it can be used for simulation civs evolution (see project civs).
For a generated world is also possible to generate additional maps, for example ancient looking map:
# WorldEngine
worldengine ancient_map -w seed1.world
# Lands 0.5.1 or next
lands ancient_map -w seed1.world
# Lands 0.5.0 or previous
python lands/generator.py ancient_map -w seed1.world
We started a google group: if you have ideas, problems, suggestions or want to contribute please join us!
We would love to see WorldEngine used together with other tools. Worlds generated by WorldEngine can be loaded into python applications using WorldEngine itself as a library. Java applications can instead use WorldEngine-Java, a java library to load WorldEngine files.
Worlds can be saved using pickle or protobuf format, for which there are libraries in several languages. We keep working on supporting more formats and always interested in ways to improve interoperability.
For Windows, Linux and Mac are available on the releases page.
An experimental (and limited!) GUI is available as a separate project: https://github.com/Mindwerks/worldengine-gui.
# Currently not yet released on pypi, you may want to still use Lands or WorldSynth
# or alternatively download the source
pip install worldengine
git clone or download the code
# for unit-testing: also clone worldengine-data
git clone git@github.com:Mindwerks/worldengine-data.git ../worldengine-data
nosetest tests
If you want to install Worldengine on Windows you can read these instructions.
Executable file is also available under releases, but is currently out of date.
Note: you need also a copy of the worldengine src directory in the same folder as the exe.
The gui is based on QT, so you will need to install them
The program produces a binary format with all the data of the generated world and a set of images. For examples seed 1 produces.
worldengine [options] [world|plates|ancient_map|info]
Note that options were changed in version 0.5.3
| Short | Long | Description |
|---|---|---|
| -o DIR | --output-dir=DIR | generate files in DIR default = '.' |
| -n STR | --worldname=STR | set world name to STR |
| -b | --protocol-buffer | save world using protocol buffer format (smaller file) |
| -s N | --seed=N | use SEED to initialize the pseudo-random generation |
| -t STR | --step=STR | use STEP to specify how far to proceed in the world generation process. Valid values are: plates precipitations full |
| -x N | --width=N | WIDTH of the world to be generated |
| -y N | --height=N | HEIGHT of the world to be generated |
| -q N | --number-of-plates=N | number of plates |
| --recursion-limit=N | you need that just if you encounter an error while generating very large maps | |
| -v | --verbose | Enable verbose messages |
| --bw | --black-and-white | Draw maps in black and white |
| Short | Long | Description |
|---|---|---|
| -r FILE | --rivers=FILE | produce a map of rivers, after the option it expects the name of the file where to generate the map |
| --gs=FILE | --grayscale-heightmap=FILE | produce a grayscale heightmap, after the option it expects the name of the file where to generate the heightmap |
| --ocean_level=N | elevation cut off for sea level (default = 1.0) |
| Short | Long | Description |
|---|---|---|
| -w FILE | --worldfile=FILE | WORLD_FILE to be loaded |
| -g FILE | --generatedfile=FILE | name of the GENERATED_FILE |
| -f N | --resize-factor=N | resize factor |
For example these commands:
worldengine world -s 4 -n an_example -p 2048 -q 25 -x 2048 -y 2048Produce this output
Worldengine - world generator
-----------------------
seed : 4
name : seed3
width : 2048
height : 2048
plates resolution : 2048
number of plates : 25
operation : world generation
step : full
starting (it could take a few minutes) ...
...plates simulated
...elevation noise added
...elevation level calculated
...precipations calculated
...erosion calculated
...humidity calculated
...permeability level calculated
Biome obtained:
subtropical thorn woodland = 16353
tropical desert = 188
boreal rain forest = 69472
tropical thorn woodland = 19680
subpolar dry tundra = 6316
warm temperate wet forest = 17799
subpolar wet tundra = 24453
subpolar moist tundra = 15104
tropical wet forest = 18441
subpolar rain tundra = 79723
tropical rain forest = 5906
ice = 85254
tropical moist forest = 28871
subtropical rain forest = 14733
boreal moist forest = 24395
boreal wet forest = 35212
subtropical dry forest = 26259
subtropical desert scrub = 3256
subtropical moist forest = 25220
cool temperate desert scrub = 11162
cool temperate steppe = 25604
boreal dry scrub = 13403
tropical dry forest = 22415
tropical very dry forest = 27033
tropical desert scrub = 2473
warm temperate moist forest = 27704
warm temperate desert scrub = 4861
warm temperate rain forest = 10774
cool temperate moist forest = 42770
cool temperate wet forest = 52813
warm temperate dry forest = 29992
ocean = 3314282
cool temperate desert = 2950
subtropical desert = 287
warm temperate desert = 709
cool temperate rain forest = 46844
subtropical wet forest = 18280
boreal desert = 5445
warm temperate thorn scrub = 16175
polar desert = 1693
Producing ouput:
* world data saved in './an_example.world'
* ocean image generated in './an_example_ocean.png'
* precipitation image generated in './an_example_precipitation.png'
* temperature image generated in './an_example_temperature.png'
* biome image generated in './an_example_biome.png'
* elevation image generated in './an_example_elevation.png'
...done
This is the corresponding ancient map
worldengine ancient_map -w an_example.world
The world generation algorithm goes through different phases:
- plates simulation: it is the best way to get proper mountain chains. For this pyplatec is used
- noise techniques are used at different steps
- precipitations are calculated considering latitude and rain shadow effects
- erosion is calculated
- humidity in each zone is calculated
- terrain permeability is calculated
- biome is calculated using the Holdridge life zones model
Using virtualenv you can create a sandbox in which to develop.
virtualenv venv
source venv/bin/activate
pip install --upgrade pip setuptools
pip install -r requirements-dev.txt
python worldenginevirtualenv venv -p /usr/bin/python3
source venv/bin/activate
pip install --upgrade pip setuptools
pip install -r requirements-dev.txt
python worldengineWe use PyInstaller to wrap everything up into one binary.
This will create a binary located dist/worldengine that has all the
required libs necessary to run.
Because of the libraries we use, it is best to use their develop branch.
pip install git+https://github.com/pyinstaller/pyinstaller.git@develop
pyinstaller --clean -F -n worldengine worldengine/__main__.pyYou'll need to have brew installed, this should give you all the tools you'll need.
pyinstaller --clean -F -n worldengine worldengine/__main__.pyAt this time, it doesn't gather everything from protobuf. So you'll need to copy google/protobuf python to dist/google/protobuf and create init.py in dist/google
Turning your Windows into a developer environment is a long and drawn out process. I'll try to keep this as short as possible and to the point.
Remember, be consistent if you are either win32 or win64 and everything you download and install is either one or the other, but not both.
You'll want to install msysgit: https://msysgit.github.io/ which will get you a Linux like environment. After that, clone the repo and install Python 2.7 for windows: https://www.python.org/downloads/windows/ This will get you also pip which is required for the rest. You'll first need to pip install virtualenv.
The layout is a bit different than in Linux.
virtualenv venv
venv/Scripts/pip install -r requirements.txtNumpy install will fail, so you'll need download a pre-compiled wheel file and install it with pip. http://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy numpy‑1.9.2+mkl‑cp27‑none‑win_amd64.whl Pick one for your arch, 32 or 64.
venv/Scripts/pip install ../numpy‑1.9.2+mkl‑cp27‑none‑win_amd64.whlNext step is to get pywin32 which are win32api hooks for python, when downloading, you'll need to pick either 32 or 64-bit otherwise it won't work. You'll also install it via pip. http://sourceforge.net/projects/pywin32/files/pywin32/
venv/Scripts/pip install ../pywin32-219.win-amd64-py2.7.exeThe last step is to get pyinstaller installed and this can be tricky because as of right now, we have to use a specific revision that "good-enough". The issue is being tracked here: pyinstaller/pyinstaller#1291
venv/Scripts/pip install git+https://github.com/pyinstaller/pyinstaller.git@67610f2
venv/Scripts/pyinstaller --clean --console -F -n worldengine worldengine/__main__.pyPlease write to us! You can write us at:
- f dot tomassetti at gmail dot com
- psi29a at gmail dot com Thank you, all the feedback is precious for us!
Libjpeg, libtiff and zlib are required by Pillow
WorldEngine is being used in several products and we are starting to list them here:
- Lost Islands WorldEngine has been used to generate a map for Widelands, an open-source real time strategy game
- AX:EL - Air XenoDawn a sci-fi aerial dogfighting commercial game released on Steam
If you are using WorldEngine please let us know!
The merged project is maintained by Bret Curtis and Federico Tomassetti.
All contributions, questions, ideas are more than welcome! Feel free to open an issue or write in our google group.
We would like to thank you great people who helped us while working on WorldEngine and the projects from which it was derived:
-
Evan Sampson contributed the amazing implementation of the Holdridge life zones model and improved a lot the ancient-looking-map, biome, precipitation and temperature generators. Thanks a million!
-
Ryan contributed the Windows binary version and discussed Lands on Reddit bringing a lot of users. Thanks a million!
-
stefan-feltmann made Lands depends on pillow instead that on PIL (which is deprecated). This could also help when moving to Python 3. Thanks a million!
-
Russell Brinkmann helped saving the generation parameters in the generated world (so that we can use it to generate the same world again, for example), improved the command line options and added tracing information (useful for understanding the performance of the various generation steps)
WorldEngine has been created by merging Lands and WorldSynth. Last Lands version was 0.5.3, last WorldSynth version: 0.12, first WorldEngine version has been 0.18.
WorldEngine is available under the MIT License. You should find the LICENSE in the root of the project.