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Question by Sergiogcb · Jan 25, 2020 at 05:28 PM · unity 2djumpcollider2dmovement scriptplayer movement

Player making "random jumps" while is moving at random places (Unity 2D)

Hi guys!

I'm having a little problem over here with Unity 2D. My player makes little jumps while it's moving. I think it was related to my 2D collider (it was a box for my player)... So i changed it for a CircleCollider2D

Right now my editor looks like this:

alt text

But while it's moving, it makes little jumps, something like it's "collisioning" with some parts of the floor. And it's completely random.

Here is the movement script I'm using for my player

 public class PlayerController : MonoBehaviour
 {
 
     private Vector3 jump;
     private Vector3 speed;
     public float jumpForce = 2.0f;
     public float speedAcceleration = 2.0f;
     private bool isGrounded;
     Rigidbody2D rb;
 
     // Start is called before the first frame update
     void Start()
     {
         rb = GetComponent<Rigidbody2D>();
         jump = new Vector3(0.0f, jumpForce, 0.0f);
         speed = new Vector3(speedAcceleration, 0.0f, 0.0f);
     }
 
     private void OnCollisionEnter2D(Collision2D collision)
     {
         if(!collision.gameObject.tag.Equals("Player"))
         {
             isGrounded = true;
         }
     }
 
     private void FixedUpdate()
     {
         if (Input.GetKeyDown(KeyCode.Space) && isGrounded)
         {
             rb.AddForce(jump * jumpForce, ForceMode2D.Impulse);
             isGrounded = false;
         }
 
         if (Input.GetKey(KeyCode.D))
         {
             rb.AddForce(speed * speedAcceleration, ForceMode2D.Force);
         }
         else if (Input.GetKey(KeyCode.A))
         {
             rb.AddForce(speed * speedAcceleration * -1, ForceMode2D.Force);
         }
     }
     // Update is called once per frame
     void Update()
     {
         
     }
 }

(The fixedUpdate code was before into the Update method, but I decided to change it to check if this was the cause of this "strange" thing that it's happening.

Hope to hear from you soon and receive a solution!

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