@needle-tools/engine/lib/engine-components/AnimationUtils.js

Needle Engine is a web-based runtime for 3D apps. It runs on your machine for development with great integrations into editors like Unity or Blender - and can be deployed onto any device! It is flexible, extensible and networking and XR are built-in.

const $objectAnimationKey = Symbol("objectIsAnimatedData");
/** Internal method - This marks an object as being animated. Make sure to always call isAnimated=false if you stop animating the object
 * @param obj The object to mark
 * @param isAnimated Whether the object is animated or not
 */
export function setObjectAnimated(obj, animatedBy, isAnimated) {
    if (!obj)
        return;
    if (obj[$objectAnimationKey] === undefined) {
        if (!isAnimated)
            return;
        obj[$objectAnimationKey] = new Set();
    }
    const set = obj[$objectAnimationKey];
    if (isAnimated) {
        set.add(animatedBy);
    }
    else if (set.has(animatedBy))
        set.delete(animatedBy);
}
/** Get is the object is currently animated. Currently used by the Animator to check if a timeline animationtrack is actively animating an object */
export function getObjectAnimated(obj) {
    if (!obj)
        return false;
    const set = obj[$objectAnimationKey];
    return set !== undefined && set.size > 0;
}
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