如何使该翻转动画的一部分连续循环播放?

时间:2019-05-02 03:50:29

标签: javascript jquery animation lottie bodymovin

我有一个动画,希望将其用于具有以下基本状态的翻转效果:

  1. 休息:在第0帧和第55帧之间连续循环
  2. 鼠标输入:播放一次第56到78帧,然后在78上暂停
  3. 鼠标移出:播放一次帧79-95,然后返回静止状态

除了在静止状态下连续循环外,我几乎可以正常工作。循环只播放一次,然后静止。我的代码如下:

Codepen:https://codepen.io/anon/pen/pBXKeN

var animationContainer = document.getElementById("animation-container");

var animation = lottie.loadAnimation({
    wrapper: document.getElementById("animation-wrapper"),
    renderer: "svg",
    loop: false,
    autoplay: false,
    prerender: true,
    animationData: animationData,
});

animation.addEventListener('DOMLoaded',resting);
animationContainer.addEventListener("mouseenter", hoverStart);
animationContainer.addEventListener("mouseleave", hoverEnd);

function resting() {
    animation.removeEventListener("complete", resting);
    console.log('resting');
    animation.playSegments([0, 55], true);
}

function hoverStart() {
    console.log('hover started');
    animationContainer.removeEventListener("mouseenter", hoverStart);
    animation.playSegments([56, 78], true);
    animationContainer.addEventListener("mouseleave", hoverEnd);
}

function hoverEnd() {
    console.log('hover ended');
    animationContainer.removeEventListener("mouseleave", hoverEnd);
    animation.playSegments([79, 95], true);
    animation.addEventListener("complete", resting);
    animationContainer.addEventListener("mouseenter", hoverStart);
}

我尝试将loop设置为true,但这会导致所有3个状态循环,这对于mouseenter和mouseleave效果不是理想的效果。有没有办法让单个部分循环?

如果让事情变得更简单,我也很高兴切换到jQuery。

1 个答案:

答案 0 :(得分:0)

通过将循环设置为true来解决,在2帧之间循环以获得“暂停”效果,并更紧密地监视悬停状态。我相信这可以进一步改善,但是目前我很高兴它能正常工作。

更新的Codepen:https://codepen.io/matt3/pen/NVxWYJ

var hover = false;

animationContainer.addEventListener("mouseenter", hoverStart);
animation.addEventListener('DOMLoaded',resting);

function resting() {
  console.log('resting. hover status: ' + hover);
  animation.removeEventListener("loopComplete", resting);
  animation.playSegments([0, 55], true);
}

function hoverStart() {
  console.log('hover started. hover status: ' + hover);
  animationContainer.removeEventListener("mouseenter", hoverStart);
  animation.playSegments([56, 78], true);
  animation.addEventListener("loopComplete", hoverPause);
}

function hoverPause() {
  console.log('hover paused. hover status: ' + hover);
  animation.removeEventListener("loopComplete", hoverPause);
  animationContainer.addEventListener("mouseleave", hoverEnd);
  animation.playSegments([77, 78], true);
  console.log('hover pause complete. hover status: ' + hover);
  if (!hover) {
    animation.addEventListener("loopComplete", hoverEnd);
  }
}

function hoverEnd() {
  console.log('hover ended. hover status: ' + hover);
  animationContainer.removeEventListener("mouseleave", hoverEnd);
  animation.removeEventListener("loopComplete", hoverEnd);
  animation.playSegments([79, 95], true);
  animation.addEventListener("loopComplete", resting);
  animationContainer.addEventListener("mouseenter", hoverStart);
}

animationContainer.onmouseout = function () {
    hover = false;
}
animationContainer.onmouseover = function () {
    hover = true;
}