3b2e134169
Add distribution metadata, Strobi app icons, CI, and comprehensive documentation. Migrate the project to pnpm and reorganize the Studio into domain-focused modules and components.
69 lines
2.0 KiB
TypeScript
69 lines
2.0 KiB
TypeScript
import { advanceSequenceCursor, type AvatarSequence } from './sequences'
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export type PlaybackTimeline = {
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position: number
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direction: 1 | -1
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stepDueAt: number | null
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stepRemainingMs: number
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blinkDueAt: number | null
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blinkRemainingMs: number
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}
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export const createPlaybackTimeline = (): PlaybackTimeline => ({
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position: 0,
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direction: 1,
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stepDueAt: null,
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stepRemainingMs: 0,
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blinkDueAt: null,
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blinkRemainingMs: 0,
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})
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export const beginPlayback = (timeline: PlaybackTimeline, preservePosition = false) => {
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return {
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...timeline,
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position: preservePosition ? timeline.position : 0,
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direction: preservePosition ? timeline.direction : 1,
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stepDueAt: null,
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blinkDueAt: null,
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} satisfies PlaybackTimeline
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}
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export const schedulePlaybackStep = (timeline: PlaybackTimeline, now: number, delayMs: number) => {
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return { ...timeline, stepRemainingMs: delayMs, stepDueAt: now + delayMs }
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}
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export const schedulePlaybackBlink = (timeline: PlaybackTimeline, now: number, delayMs: number) => {
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return { ...timeline, blinkRemainingMs: delayMs, blinkDueAt: now + delayMs }
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}
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export const pausePlaybackTimeline = (timeline: PlaybackTimeline, now: number) => {
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return {
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...timeline,
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stepRemainingMs:
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timeline.stepDueAt === null
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? timeline.stepRemainingMs
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: Math.max(timeline.stepDueAt - now, 0),
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blinkRemainingMs:
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timeline.blinkDueAt === null
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? timeline.blinkRemainingMs
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: Math.max(timeline.blinkDueAt - now, 0),
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stepDueAt: null,
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blinkDueAt: null,
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}
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}
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export const advancePlaybackTimeline = (timeline: PlaybackTimeline, sequence: AvatarSequence) => {
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const cursor = advanceSequenceCursor(sequence, timeline.position, timeline.direction)
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return {
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cursor,
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timeline: {
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...timeline,
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position: cursor.index,
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direction: cursor.direction,
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stepDueAt: null,
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},
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}
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}
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export const stopPlaybackTimeline = (_timeline: PlaybackTimeline) => createPlaybackTimeline()
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