/**
* @description 动画滚动至目标位置
* @param {Number} currentY 当前位置
* @param {Number} targetY 目标位置
* @example scrollAnimation(0, 100)
*/
function scrollAnimation(currentY, targetY) {
// 计算需要移动的距离
let needScrollTop = targetY - currentY
let _currentY = currentY
setTimeout(() => {
// 一次调用滑动帧数,每次调用会不一样
const dist = Math.ceil(needScrollTop / 100)
_currentY += dist
window.scrollTo(_currentY, currentY)
// 如果移动幅度小于十个像素,直接移动,否则递归调用,实现动画效果
if (needScrollTop > 100 || needScrollTop < -100) {
scrollAnimation(_currentY, targetY)
} else {
window.scrollTo(_currentY, targetY)
}
}, 1)
}
export default scrollAnimation;