doodle/cmd/doodad/README.md
Noah Petherbridge 5bf7d554f7 Add doodad.exe binary and PNG to Drawing Converter
Adds the `doodad` binary which will be a command line tool to work with
Doodads and Levels and assist with development.

The `doodad` binary has subcommands like git and the first command is
`convert` which converts between image files (PNG or BMP) and Doodle
drawing files (Level or Doodad). You can "screenshot" a level into a PNG
or you can initialize a new drawing from a PNG.
2018-10-16 12:26:41 -07:00

1.4 KiB

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.