* based on @Toji's https://github.com/toji/gl-matrix/ * slerp with quaternion * @private * @param {*} a from a * @param {*} b to b * @param {*} t

* 启动主循环 * * 如果已经启动则忽略。启动后时间线播放速率设为 1.0。

* start update loop * @return {this}

* stop update loop * @return {this}

* 将布局结果立即同步到 pixi container * * 背景：Eva.js 帧循环中 System.update() 先于 System.lateUpdate() 执行。 * RendererSystem.update() 将 transform 同步到 pixi cont

* get timeline snippet * @private

* a * @param {*} font a * @return {*}

* unbind other animation-group or display-object to this animation-group with selector * <br/> `Note:` only can use after data was setup or after D

* 监听插件更新

If {@link Spine.autoUpdate} is `false`, this method allows to update the AnimationState and the Skeleton with the given delta.

* update lottie information * @param {*} lottieLayer lottie element object * @param {boolean} forceUpdate forceUpdate

* update lottie information * @param {*} lottieLayer lottie element object * @param {boolean} forceUpdate forceUpdate

* a * @param {*} masks a

* a * @param {*} masks a

* a * @param {*} masks a

* a * @param {*} masks a

* a * @param {*} masks a

* a * @param {*} masks a

* a

* a

* a * @param {*} transform

* a * @param {*} transform

* a * @param {*} transform

* a * @param {*} transform

* a * @param {*} transform

Returns true when all mixing from entries are complete.

* ensure that attached containers map correctly to their slots * along with their position, rotation, scale, and visibility.

* ensure that attached containers map correctly to their slots * along with their position, rotation, scale, and visibility.

* updateTextLayer * @param {*} textLayer textLayer

Computes the world transform using the parent bone and this bone's local transform. * * See {@link #updateWorldTransformWith()}.

* 生成唯一的标识符 * @param len 长度 * @param radix 基