PositionTransition.cs

using UnityEngine;

namespace Animations
{
    public class PositionTransition
    {
        private readonly float _duration;
        private readonly Vector3 _from;

        private readonly Vector3 _to;
        private float _animationTime;

        public PositionTransition(Vector3 from, Vector3 to, float duration)
        {
            _from = from;
            _to = to;
            _duration = duration;
        }

        public Vector3 GetCurrentPosition(float deltaTime)
        {
            _animationTime += deltaTime / _duration;

            return Vector3.Lerp(
                _from,
                _to,
                _animationTime
            );
        }
    }
}