Horizontal Rigidbody2D.Addforce not working, but vertical works fine?

Question

EDIT! So I loaded up a FRESH PROJECT, created a circle and added my script to it. When I hit start the circle launches off at a 45 degree angle, it works perfectly fine. I also tried adding a horizontal addforce on another object in my original project and it resulted in a jittery teleport to the right.

Something is broken inside my project related to horizontal force... What could it be?!

This has driven me and a bud mad for 24 hours now and I've searched high and low but have not found any similar problems or applicable solutions.

I'm developing a mario-style side scroller game and the concept is simple: Hit the box, a coin pops out with vertical and horizontal force. This is the ONLY code so far in the script attached to the coin.

  void Start()
 {
     forceUp = new Vector2(0, upForce);
     forceSide = new Vector2(sideForce, 0);
     GetComponent<Rigidbody2D>().AddForce(forceUp, ForceMode2D.Impulse);
     GetComponent<Rigidbody2D>().AddForce(forceSide, ForceMode2D.Impulse);
 }

This is the code that instantiates the coin in the box script:

 private void OnCollisionEnter2D(Collision2D collision)
     
 {
     RaycastHit2D hit = Physics2D.Raycast(transform.position, Vector2.down, 1.0f, layerMask);
     
     if (!isOpen && hit.collider != null)
     {
         isOpened();
         Instantiate(openPrize, new Vector3(transform.position.x, transform.position.y+1.0f, transform.position.z), transform.rotation);
     }
 }

problem is: The coin will pop "up" a distance directly related to the value I plug into the "up force" variable.

The coin will not move horizontally at all. If I jack the horizontal variable up to some stupid number like 5000, it will teleport a short distance to the side.

Answer 1

Answer by logicandchaos · Jan 12, 2021 at 05:51 PM

It's because you are doing it in 2 steps I think Try

  GetComponent<Rigidbody2D>().AddForce(new Vector2(sideForce, upForce), ForceMode2D.Impulse);

in your Start method, delete the rest.

Add comment · Show 2 · Share

Ace_Oxide · Jan 12, 2021 at 06:05 PM 0

Share

Nope. I've tried it both ways. It was originally how you describe it.

logicandchaos Ace_Oxide · Jan 12, 2021 at 08:06 PM 0

Share

I think it's your other script, this line here: Instantiate(openPrize, new Vector3(transform.position.x, transform.position.y+1.0f, transform.position.z), transform.rotation); you instantiate it to position transform.position.x, transform.position.y+1.0f, you could also try setting the velocity instead of AddForce which I find works a lot better for me. O maybe different types of force modes. Also check your object to see if there are restraints set in the inspector.

Horizontal Rigidbody2D.Addforce not working, but vertical works fine?

1 Reply

Your answer

Follow this Question

Related Questions