FateLoggable

An object that knows how to publish itself into a FateTable.

Implement this for a type that is several values. Call sites log one object, and the type decides what appears under it:

class DriveState(val left: Double, val right: Double, val pose: Pose) : FateLoggable {
    override fun logTo(table: FateTable) {
        table.log("left", left)
        table.log("right", right)
        table.log("pose", pose)
    }
}

Fate.log("drive", driveState)   // Drive state lands under drive/left, drive/right, drive/pose

Logging a loggable is a series of separate writes, not one atomic snapshot. A reader can see some fields from this loop and some from the last. If the fields must agree, copy them into an immutable object first.