Why doesn't jump animation work for platformer on unity 3d?

Question

C++ / C#

Hello everyone, now I'm learning to work with unity 3d. One book shows how to make an animated run, how to make a jump, but how to make an animated jump is not already told there. As I understand it, the code and the principle of operation should not differ much from running, so I wrote this code:

public class PlayerController : MonoBehaviour
{
    public float speed = 250.0f;
    private Rigidbody2D _body;
    private Animator _anim;
    public float jumpforce = 25.0f;
    private BoxCollider2D _box;

    // Start is called before the first frame update
    void Start()
    {
        _body = GetComponent<Rigidbody2D>();
        _anim = GetComponent<Animator>();
        _box = GetComponent<BoxCollider2D>();
    }

    // Update is called once per frame
    void Update()
    {
        float deltaX = Input.GetAxisRaw("Horizontal") * Time.deltaTime * speed;
        float deltaY = Input.GetAxis("Vertical");
        Vector2 movement = new Vector2(deltaX, _body.velocity.y);
        _body.velocity = movement;

        Vector3 max = _box.bounds.max;
        Vector3 min = _box.bounds.min;
        Vector2 corner1 = new Vector2(max.x, min.y - .1f);
        Vector2 corner2 = new Vector2(min.x, min.y - .2f);
        Collider2D hit = Physics2D.OverlapArea(corner1, corner2);

        bool grounded = false;
        if(hit != null)
        {
            grounded = true;
        }

        if(grounded && Input.GetKeyDown(KeyCode.Space))
        {
            _body.AddForce(Vector2.up * jumpforce, ForceMode2D.Impulse);
        }
        _anim.SetFloat("v_speed", deltaY);
       _anim.SetBool("grounded", grounded);

        _anim.SetFloat("speed", Mathf.Abs(deltaX));
        if(!Mathf.Approximately(deltaX, 0))
        {
            transform.localScale = new Vector3(Mathf.Sign(deltaX), 1, 1);
        }
    }
}

I understand it this way: when the character moves up, the deltaY speed is positive, when he flies down, it is negative. Grounded, based on the fact that you can’t jump twice, works great, which means I can transfer it to the animator. In the future, I wanted to create two animations - one with a flight up, the other with a flight down, but also make a condition for each, but for a start I made everything in general, as you can see everything in the screenshot. Why is nothing working? If you understand, please explain in more detail, I'm still stupid :)

Answer 1

You don't have a transaction in the jump stage