2D Jump using "Rigidbody2D.AddForce" doesn't work.

[AlbertDevelopment]

I am embarrassed to ask this question, because it’s too easy and I’m disappointed in myself that I actually got stuck on this. My simple 2D jump script doesn’t work, specifically the Rigidbody2D.AddForce() line is the problem. Here’s the code:

    public Rigidbody2D rb;
    public float jumpHeight = 10f;
    public bool canJump = false;

    void Awake()
    {
        rb = gameObject.GetComponent<Rigidbody2D>();
    }

    void Update()
    {
        if (Input.GetButtonDown("Jump") && canJump == true && rb != null)
        {
            //rb.velocity = Vector2.up * jumpHeight;
            //rb.AddForce(new Vector2(0f, jumpHeight), ForceMode2D.Impulse);
            rb.AddForce(Vector2.up * jumpHeight * Time.deltaTime);
            Debug.Log("This Debug.Log line actually gets written in the console, so the problem is not with the if statement.");
        }
    }

Here are my Rigidbody2D settings:

[KarMa_PlaYzz]

Have you tried:

---

rb.AddForce(Vector2.up * jumpHeight);

---

By doing rb.AddForce(Vector2.up * jumpHeight * Time.deltaTime); you’re trying to do it overtime, but since you only check for Input.GetButtonDown("Jump") it only registers it for a frame, which doesn’t let it run over time.

If this didn’t solve your problem; make sure to read the documentation about Rigidbody2D.AddForce()

Hope this helped!