popmotion
Version:
The animator's toolbox
14 lines (12 loc) • 542 B
JavaScript
function loopElapsed(elapsed, duration, delay = 0) {
return elapsed - duration - delay;
}
function reverseElapsed(elapsed, duration, delay = 0, isForwardPlayback = true) {
return isForwardPlayback
? loopElapsed(duration + -elapsed, duration, delay)
: duration - (elapsed - duration) + delay;
}
function hasRepeatDelayElapsed(elapsed, duration, delay, isForwardPlayback) {
return isForwardPlayback ? elapsed >= duration + delay : elapsed <= -delay;
}
export { hasRepeatDelayElapsed, loopElapsed, reverseElapsed };