游戏中经常需要将一个spine动画拆成不同帧进行播放

只需要设置几个常用的属性就可以了

animationStart： 开始帧
animationEnd： 结束帧
总帧数可以打印结束帧
timeScale = 0；设置动画停止在自己设置的结束帧上面

this.player.getComponent(sp.Skeleton).setAnimation(0, "nieqiang1", false);
let trackEntry = this.player.getComponent(sp.Skeleton).getCurrent(0)
 console.log(trackEntry.animationStart, trackEntry.animationEnd)
 trackEntry.animationStart = 0 / 30; // 30是Spine动画的帧率
 trackEntry.animationEnd = 25 / 30;
 if (DataManager.instance.is_running) {
     this.player.getComponent(sp.Skeleton).setAnimation(1, "run2", true);
 } else {
     this.player.getComponent(sp.Skeleton).setAnimation(1, "1tui2", true);
 }

 this.player.getComponent(sp.Skeleton).setCompleteListener((trackEntry, loopCount) => {
     if (trackEntry.animation.name == 'nieqiang1') {
         trackEntry.timeScale = 0;
     }
 })

一下代码作为参考

// 传入spine与进度比例（注意初始要把spine的TimeScale设置为0）
updateSpine(spine: sp.Skeleton, rate: number) {
    const track = spine.getCurrent(0);
    // spine.timeScale = 0;
    const timeEnd = track.animationEnd;
    const current = timeEnd * rate;
    track.animationStart = current;
    spine.setToSetupPose();

}

    /**
    * 停止在指定帧。1是开始，-1是最后
    * @param frame 帧数
    */
    stopAtFrame(frame: number) {
        const te = this.player.getComponent(sp.Skeleton).getCurrent(0) as sp.spine.TrackEntry;
        // 算出帧对应的时间
        let time;
        if (frame === -1) {
            time = te.animation.duration; // 最后一帧
        } else if (frame > 1) {
            time = (frame - 1) / 30;  // 根据帧率算出对应时间，spine帧率是30
        } else {
            time = 0; // 首帧
        }
        // 对time作限制
        if (time < 0) time = 0;
        if (time >= te.animation.duration) time = te.animation.duration - 0.01; // 太精确的话，动画会停在首帧，所以要减一点

        te.timeScale = 0; // 让动画停止
        te.trackTime = time;
    }