Function goScrollPercent

scripts/reading.js:1184–1217

(screenPercent = 50, animation = true)

goScrollPercentST = false;

function goScrollPercent(screenPercent = 50, animation = true)
{
	if(_config.readingWebtoon || readingViewIs('scroll'))
	{
		let animationDurationMS = (animation ? _config.readingViewSpeed : 0) * 1000;

		const content = template._contentRight().firstElementChild;
		const rect = content.getBoundingClientRect();

		const now = Date.now();
		const prevNow = +content.dataset.now;

		const scrollHeight = content.scrollHeight - rect.height;
		let scrollTop = (+content.dataset.scrollTop || content.scrollTop) + (screenPercent / 100 * rect.height);

		if(scrollTop < 0)
			scrollTop = 0;
		else if(scrollTop > scrollHeight)
			scrollTop = scrollHeight;

		content.dataset.scrollTop = scrollTop;
		content.dataset.now = now;

		clearTimeout(goScrollPercentST);
		goScrollPercentST = setTimeout(function(){

			content.dataset.scrollTop = '';
			content.dataset.now = '';

		}, animationDurationMS);

		$(content).stop(true).animate({scrollTop: scrollTop+'px'}, animationDurationMS, ((now - prevNow) < animationDurationMS ? 'linear' : 'swing'));
	}
}

//Go to a specific comic index
function goToIndex(index, animation = true, nextPrevious = false, end = false)