Noah Petherbridge
82884c79ae
Add the ability for the free version of the game to allow loading levels that use embedded custom doodads if those levels are signed. * Uses the same signing keys as the JWT token for license registrations. * Levels and Levelpacks can both be signed. So individual levels with embedded doodads can work in free versions of the game. * Levelpacks now support embedded doodads properly: the individual levels in the pack don't need to embed a custom doodad, but if the doodad exists in the levelpack's doodads/ folder it will load from there instead - for full versions of the game OR when the levelpack is signed. Signatures are computed by getting a listing of embedded assets inside the zipfile (the assets/ folder in levels, and the doodads/ + levels/ folders in levelpacks). Thus for individual signed levels, the level geometry and metadata may be changed without breaking the signature but if custom doodads are changed the signature will break. The doodle-admin command adds subcommands to `sign-level` and `verify-level` to manage signatures on levels and levelpacks. When using the `doodad levelpack create` command, any custom doodads the levels mention that are found in your profile directory get embedded into the zipfile by default (with --doodads custom). |
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| .. | ||
| commands | ||
| main.go | ||
| README.md | ||
doodad.exe
The doodad tool is a command line interface for interacting with Levels and Doodad files, collectively referred to as "Doodle drawings" or just "drawings" for short.
Commands
doodad convert
Convert between standard image files (bitmap or PNG) and Doodle drawings (levels or doodads).
This command can be used to "export" a Doodle drawing as a PNG (when run against a Level file, it may export a massive PNG image containing the entire level). It may also "import" a new Doodle drawing from an image on disk.
Example:
# Export a full screenshot of your level
$ doodad convert mymap.level screenshot.png
# Create a new level based from a PNG image.
$ doodad convert scanned-drawing.png new-level.level
# Create a new doodad based from a BMP image, and in this image the chroma
# color (transparent) is #FF00FF instead of white as default.
$ doodad convert --key '#FF00FF' button.png button.doodad
Supported image types:
- PNG (8-bit or 24-bit, with transparent pixels or chroma key)
- BMP (bitmap image with chroma key)
The chrome key defaults to white (#FFFFFF), so pixels of that color are
treated as transparent and ignored. For PNG images, if a pixel is fully
transparent (alpha channel 0%) it will also be skipped.
When converting an image into a drawing, the unique colors identified in the drawing are extracted into the palette. You will need to later edit the palette to assign meaning to the colors.