I can't apply method "Evaluate" for my C# script

Question

I'm writing a script for my learning project, it's a 3D fireballs mobile game copy.

My task to implement a mechanic of ball bouncing back from an obstacle. There are simpler ways, but, unfortunately I have to use the one attached. When I try to use method Evaluate I'm having this kind of log

1 In JB Rider it is:

Cannot resolve symbol 'Evaluate'

2. In Unity it is:

Assets\Scripts\Physics\DirectionalBounce.cs(56,48): error CS1061: 'Animation' does not contain a definition for 'Evaluate' and no accessible extension method 'Evaluate' accepting a first argument of type 'Animation' could be found (are you missing a using directive or an assembly reference?)

using System.Collections;
using Coroutines;
using Structures;
using UnityEngine;

namespace Physics
{
    [System.Serializable]
    public class DirectionalBouncePreferences
    {
        public float Duration;
        public float Height;
        public Animation Trajectory;

        public DirectionalBouncePreferences(float duration, float height, Animation trajectory)
        {
            Duration = duration;
            Height = height;
            Trajectory = trajectory;
        }
    }

    public class DirectionalBounce
    {
        private readonly Transform _bouncer;
        private CoroutineExecutor _coroutineExecutor;
        private readonly DirectionalBouncePreferences _preferences;

        public DirectionalBounce(Transform bouncer, CoroutineExecutor coroutineExecutor, DirectionalBouncePreferences preferences)
        {
            _bouncer = bouncer;
            _coroutineExecutor = coroutineExecutor;
            _preferences = preferences;
        }

        public void BounceTo(Vector3 target, Vector3 startPosition) =>
            _coroutineExecutor.Start(InerpolatePositionTo(target, startPosition));

        private IEnumerator InerpolatePositionTo(Vector3 target, Vector3 startPosition)
        {
            var timer = new UnityTimer();
            timer.Start(_preferences.Duration);

            while (timer.IsTimeUp == false)
            {
                float t = timer.ElapsedTimePercent;
                Vector3 newPosition = CalculatePosition(target, startPosition, t);
                _bouncer.transform.position = newPosition;
                yield return null;
            }
        }

        private Vector3 CalculatePosition(Vector3 target, Vector3 startPosition, float t)
        {
            return Vector3.Lerp(startPosition, target, t) +
                   Vector3.up * _preferences.Trajectory.Evaluate(t) *
    _preferences.Height;
        }
    }
}
[enter image description here][1]

Answer 1

The issue appears to be that you're calling a method named Evaluate on an instance of an Animation class - which does not have a method called Evaluate.

Just a guess, but perhaps you were looking for AnimationCurve.Evaluate?