kiteplayer-audioviz/io.github.yuroyami.kiteplayer.audioviz.viz.motion/Evolution

Evolution

class Evolution(var morphBudget: Float = 8.0f)

Paces a drawing's changes of form by how much is happening in the music.

It adds up musical activity (hits, novelty, density) over heard time. When the sum reaches the budget and a hit lands, or a cycle edge passes under a usable pulse, it fires morph and starts again. Every third morph and every surge fires birth as well. An accepted section fires a morph at once; a drop sets bloom and a breakdown sets collapse, which are the gene moves to most and least with a name a drawing can read. Elapsed time alone never fires anything: a pause or a silence adds no activity, and a silence drops what was added.

Constructors

constructor(morphBudget: Float = 8.0f)

Properties

var activity: Float

Activity added up since the last morph, in units of the budget.

var birth: Boolean

True on the one frame a new form is born inside the picture.

var births: Int

How many births have fired since the last reset.

var bloom: Boolean

True on the frame of an accepted drop: every part to its fullest.

var collapse: Boolean

True on the frame of an accepted breakdown: every part to its sparest.

var morph: Boolean

True on the one frame a form change starts.

var morphBudget: Float

Activity units between morphs. About four cycles of busy music, sixteen of a ballad. Judgement.

var morphs: Int

How many morphs have fired since the last reset.

Functions

fun reset()

Forgets every count and the activity added so far.

fun update(state: VizRenderState, gestures: Gestures)

Reads one frame. Call once per frame, after gestures has read the same frame.