Method interp

plugins/tweenSystem.js:201–207

Compute the interpolated value at the given remaining `life`. * At life === duration the result is `start`; at life === 0 it is `end`. * @param {number} life * @returns {number} * @memberof TweenSystem

(life)

     *  @returns {number}
     *  @memberof TweenSystem */
    interp(life)
    {
        const x = this.ease((this.duration - life) / this.duration);
        if (isLerpable(this.start))
            return this.start.lerp(this.end, x);
        return this.start + (this.end - this.start) * x;
    }

    /** Remove this tween from the active list and prevent any pending then-callback.
     *  @memberof TweenSystem */