Skip to content

Reference

Every function, handle class, field and type of datumhue, grouped by what you are making.

Reading an entry

DrawCanvas:circle(opts: draw.CircleOptions) -> DrawPrimitive

Signatures read as your editor shows them: name?: T is an argument you may leave out, T? is a value that may be nil, -> introduces what the call returns, and fun(dt: number) is a function you pass.
Class:method is called on a handle, as in canvas:circle({ radius = 40 }); datumhue.draw.new is a plain function.
A call that takes an options table lists its keys, with their types and defaults, under the call. Hover or focus a type to preview it.
A suspends pill marks a call that waits for its result, needs a permission the app must hold, and UI apps only a call service apps cannot make.

Areas

Making things

App & lifecycleStart and stop apps, run code every frame, and ask for permissions.47 members User interfacePanels, buttons and text, themes, and the screen and windows.138 members 2D drawingShapes, paths and text on a canvas that keeps what you draw.67 members Images & spritesImages, pixel pictures, sprite atlases, animation and tile maps.71 members 3D scenesScenes, meshes, lights and cameras, materials, shaders, voxels and particles.205 members Data & chartsTables of data, queries, and charts with scales, marks and axes.106 members

Input and output

Input & timeKeys, mouse, touch and gamepads, system events, timers and dates.63 members Physics & gridsBodies, joints and collisions, and grids for paths, light and distance.62 members AudioPlay samples, music and tones, shape them while they play, and mix them on buses.79 members Files, storage & bytesFolders and files you are granted, stores that last between runs, and bytes.77 members Messaging & shared stateMessages between apps, who is present, and documents apps share.40 members

Services and helpers

Accounts & catalogSign-in and the package catalog.46 members PurchasesOffer paid packages, check what the signed-in person owns, and list the devices that use it.22 members BooksBooks of pages with live elements, and the collections and counters they keep.15 members Text & languagesFonts, and text translated through message catalogs.11 members Math, color & randomVectors, quaternions and rays, colors, noise, and seeded random streams.199 members Testing & debuggingDrive input from a test: keys, clicks, touches and gamepads.10 members

More

All typesEvery options table, record and enum, A to Z, with where it is defined.
ToolsThe command line, the file formats, and the references for tests and SQL.