rng(seed: number?) → void

Park–Miller rng. Returns roll(a?, b?): no args -> [0,1), (a, b) -> [a,b).

clamp(x: number, a: number, b: number) → number

lerp(a: number, b: number, t: number) → number

now( ) → number

v(x: number, y: number, z: number) → void

Vectors are plain { x, y, z } maps.

vec(p: ?) → void

Accept { x=,y=,z= }, a transform proxy, or an array { x, y, z }.

add(a: ?, b: ?) → void

sub(a: ?, b: ?) → void

scale(a: ?, s: number) → void

dot(a: ?, b: ?) → number return a

cross(a: ?, b: ?) → void

len(a: ?) → number return math

dist(a: ?, b: ?) → number return U

norm(a: ?) → void

q(p: ?) → void

Quaternions are { x, y, z, w } maps. U.q also takes the { x, y, z, w } array form.

qmul(a: ?, b: ?) → void

qrot(q: ?, v: ?) → void

qEuler(px: number, py: number, pz: number) → void

Small rotation from pitch (x), yaw (y), roll (z) in radians, local axes.

entityOf(target: ?) → void

An entity ref for a target, or nil. Takes a ref, an id string or a name.

localAvatar( ) → void

avatarKind(e: ?) → string

Whose body an entity is: "mine" (this peer's player), "other" (another connected player's avatar) or nil (not a player's avatar).

remoteOwned(e: ?) → boolean

Whether a synced entity is owned by another peer, so this peer may not write to it.

inGameplay( ) → boolean

Whether this peer is running gameplay: in play, with the scene in place (false in edit mode and while a joiner's scene is still arriving).

editorCameraId( ) → string

isEditorCamera(e: ?) → boolean

Whether an entity is the editor's fly-camera. The kit never writes to it.

cameraEntity( ) → void

The gameplay camera this peer is drawn through, which the shake moves: only in play, and never the editor's fly-camera.

cameraPos( ) → void

Where this peer is looking from: the gameplay camera, else whichever camera is on screen (read only), else nil.

herePos( ) → void

Where this peer "is": its player's avatar, else its view, else the world origin (a world with no player and no camera yet, a headless test run).

positionOf(target: ?) → void

Where a target is: an entity's position, a position as given, or this peer's own spot (U.herePos) when the target is nil.

rgba(c: ?, a: number) → string

isPlaying( ) → boolean