ocmapgen is a command-line tool for rendering dynamic maps (Landscape.txt/Map.c) - basically mape without a GUI. It started out as an experiment with Rust FFI, but now has a few features mape doesn't implement:- It generates default SCENPAR constants from ParameterDefs.txt
- It loads the top-level System.ocg (but not scenario-level ones, those usually depend on definitions)
- It implements GetStartupPlayerCount() and GetStartupTeamCount()
- It can also export the map background
- It can export as indexed .bmp which can be used as static landscape
With these features, it can now render almost all dynamic maps in the repository (see attached images). Those failing use variables or functions defined in the scenario script.
It's possible to use ocmapgen as a mape replacement:
0. Get binaries from https://github.com/lluchs/ocmapgen/releases (or compile yourself if you're into that)
1. Open Map.c/Landscape.txt in your favorite editor (there's syntax highlighting for Vim!)
2. Run
ocmapgen --watch path/to/Map.c Map.png (optionally set a fixed seed with --seed and startup player count with --players)3. Open Map.png in your favorite image viewer (ideally one that reloads images automatically).
4. Edit, save, view changes, repeat
Some (most?) developers will want a more integrated experience like mape, I guess. The most promising project for this is currently nanoMill. I implemented a small node.js client library to make integration there easy. As a small demo, I also built a web interface. Unfortunately, the cheap VM it's running on is probably too slow to actually use this.
So yeah, try it out (ideally locally) and report issues you find or features you always missed from mape.
My wishlist:
-
- Setting scenario parameters on the command line would be nice. (this isn't hard, I just didn't implement it yet)
=3
I'm already excited to see it in nanoMill. I'm planning to have a period to put in more features into nanoMill and options, after I've reached a point where the basements feel ok, very soon. Atleast something like the WebClient you built could make it in nanoMill while that period. Since I don't know Mape very much, does it offer any superior functionality that one would miss very soon, when only operating on a texteditor + preview setup? I'd love to a have a flow-graph interface (that could probably be used in usual script too) but that's very much in the future and doesn't come up with any crucuial benefits for now.
A cool option might be to print only specific parts of the script to see how different slices evolve and then fit together. That would be in a flow graph pretty cool...
I'm already excited to see it in nanoMill. I'm planning to have a period to put in more features into nanoMill and options, after I've reached a point where the basements feel ok, very soon. Atleast something like the WebClient you built could make it in nanoMill while that period. Since I don't know Mape very much, does it offer any superior functionality that one would miss very soon, when only operating on a texteditor + preview setup? I'd love to a have a flow-graph interface (that could probably be used in usual script too) but that's very much in the future and doesn't come up with any crucuial benefits for now.
A cool option might be to print only specific parts of the script to see how different slices evolve and then fit together. That would be in a flow graph pretty cool...
>Since I don't know Mape very much, does it offer any superior functionality that one would miss very soon, when only operating on a texteditor + preview setup?
Mape features a panel showing all materials and textures. Making this information available to the node.js API is possible if there's demand for this. Other than that, there should probably be a settings dialog for setting a fixed seed and other options.
>A cool option might be to print only specific parts of the script to see how different slices evolve and then fit together. That would be in a flow graph pretty cool...
Interesting idea. I think this is possible by setting a fixed seed and then rendering the map multiple times while changing the script so that some operations don't write to the map. On the other hand, exporting the map after each change is probably way faster. I'm going to look into this.
![[de]](/mwf/flags/de.png "Germany")
Cool!
> - The engine's script interface doesn't have proper error reporting. mape and ocmapgen have to capture all log messages and fail if anything gets printed. ocmapgen at least filters and ignores warnings, but this isn't ideal.
You can use C4AulScriptEngine::RegisterErrorHandler instead of replacing Log().
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