Animation Clip

using UnityEngine;

public class ProceduralClip : MonoBehaviour
{
  void Start()
  {
      AnimationClip clip = new AnimationClip();
      clip.legacy = true; // Use with Animation (not Animator)

      // Curve: jump up then land in 1 second
      AnimationCurve curve = new AnimationCurve(
          new Keyframe(0f,   0f),    // t=0: position 0
          new Keyframe(0.5f, 3f),    // t=0.5: peak at 3
          new Keyframe(1f,   0f)     // t=1.0: back to 0
      );

      // Bind the curve to transform "localPosition.y"
      clip.SetCurve("", typeof(Transform),
          "localPosition.y", curve);

      // Play with the legacy Animation component
      Animation anim = gameObject.AddComponent<Animation>();
      anim.AddClip(clip, "jump");
      anim.Play("jump");
  }
}

using UnityEngine;

public class AnimationEventHandler : MonoBehaviour
{
  public AudioClip[] footstepSounds;
  AudioSource audioSrc;

  void Awake() => audioSrc = GetComponent<AudioSource>();

  // Called by an Animation Event when a foot hits the ground
  // (Method name must match the Event in the editor)
  void OnFootstep(AnimationEvent ev)
  {
      // ev.intParameter: 0 = left foot, 1 = right foot
      int foot = ev.intParameter;
      AudioClip sound = footstepSounds[
          Random.Range(0, footstepSounds.Length)];
      audioSrc.PlayOneShot(sound, 0.7f + foot * 0.1f);
  }

  // Callback when the combo window opens (set in the Attack clip)
  void OnComboWindowOpen()
  {
      Debug.Log("Combo window open!");
  }
}