main repo

This commit is contained in:
Basilosaurusrex
2025-11-24 18:09:40 +01:00
parent b636ee5e70
commit f027651f9b
34146 changed files with 4436636 additions and 0 deletions

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function calculateRepeatDuration(duration, repeat, _repeatDelay) {
return duration * (repeat + 1);
}
export { calculateRepeatDuration };

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/**
* Given a absolute or relative time definition and current/prev time state of the sequence,
* calculate an absolute time for the next keyframes.
*/
function calcNextTime(current, next, prev, labels) {
if (typeof next === "number") {
return next;
}
else if (next.startsWith("-") || next.startsWith("+")) {
return Math.max(0, current + parseFloat(next));
}
else if (next === "<") {
return prev;
}
else if (next.startsWith("<")) {
return Math.max(0, prev + parseFloat(next.slice(1)));
}
else {
return labels.get(next) ?? current;
}
}
export { calcNextTime };

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import { mixNumber } from 'motion-dom';
import { getEasingForSegment, removeItem } from 'motion-utils';
function eraseKeyframes(sequence, startTime, endTime) {
for (let i = 0; i < sequence.length; i++) {
const keyframe = sequence[i];
if (keyframe.at > startTime && keyframe.at < endTime) {
removeItem(sequence, keyframe);
// If we remove this item we have to push the pointer back one
i--;
}
}
}
function addKeyframes(sequence, keyframes, easing, offset, startTime, endTime) {
/**
* Erase every existing value between currentTime and targetTime,
* this will essentially splice this timeline into any currently
* defined ones.
*/
eraseKeyframes(sequence, startTime, endTime);
for (let i = 0; i < keyframes.length; i++) {
sequence.push({
value: keyframes[i],
at: mixNumber(startTime, endTime, offset[i]),
easing: getEasingForSegment(easing, i),
});
}
}
export { addKeyframes, eraseKeyframes };

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/**
* Take an array of times that represent repeated keyframes. For instance
* if we have original times of [0, 0.5, 1] then our repeated times will
* be [0, 0.5, 1, 1, 1.5, 2]. Loop over the times and scale them back
* down to a 0-1 scale.
*/
function normalizeTimes(times, repeat) {
for (let i = 0; i < times.length; i++) {
times[i] = times[i] / (repeat + 1);
}
}
export { normalizeTimes };

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function compareByTime(a, b) {
if (a.at === b.at) {
if (a.value === null)
return 1;
if (b.value === null)
return -1;
return 0;
}
else {
return a.at - b.at;
}
}
export { compareByTime };