CODEWITHSUNDEEP
c#2d
Tyler Bryant
Tyler Bryant

Reputation: 9

Unity 2D Character Vibrates When Touching Wall

Like the title says when i walk into a wall i start to vibrate. It doesn't affect gameplay just graphics i believe. The game is a 2D platformer using rigidbody 2D. I am new to game dev so what you fixed could you please tell me how you fix it. Thank you.

using UnityEngine;

public class PlayerMovement : MonoBehaviour
{
    public float MovementSpeed = 1;
    public float JumpForce = 1;

    private Rigidbody2D _rigidbody;

    private float coyoteTime = 0.2f;
    private float coyoteTimeCounter;

    private float jumpBufferTime = 0.05f;
    private float jumpBufferCounter;

    [SerializeField] private Rigidbody2D rigidbody2D;
    [SerializeField] private Transform groundCheck;
    [SerializeField] private LayerMask groundLayer;

    private bool isGrounded()
    {
        return Physics2D.OverlapCircle(groundCheck.position, 0.2f, groundLayer);
    }

    private void Start()
    {
        _rigidbody = GetComponent<Rigidbody2D>();
    }

    private void Update()
    {
        if (isGrounded())
        {
            coyoteTimeCounter = coyoteTime;
        }
        else
        {
            coyoteTimeCounter -= Time.deltaTime;
        }

        if (Input.GetButtonDown("Jump"))
        {
            jumpBufferCounter = jumpBufferTime;
        }
        else
        {
            jumpBufferCounter -= Time.deltaTime;
        }

        var movement = Input.GetAxis("Horizontal");
        transform.position += new Vector3(movement, 0, 0) * Time.deltaTime * MovementSpeed;

        if (coyoteTimeCounter > 0f && jumpBufferCounter > 0f)
        {
            _rigidbody.velocity = new Vector2(_rigidbody.velocity.x, JumpForce);

            jumpBufferCounter = 0f;
        }

        if (Input.GetButtonUp("Jump") && _rigidbody.velocity.y > 0f)
        {
            _rigidbody.velocity = new Vector2(_rigidbody.velocity.x, _rigidbody.velocity.y * 0.5f);

            coyoteTimeCounter = 0f;
        }
    }
}

Sorry if the code is sort of sloppy. I am using multiple tutorials to make the movement perfect for me.

Upvotes: 0

Views: 363

Answers (1)

Stealth9_
Stealth9_

Reputation: 11

Ah! I have had this problem before.

The reason the vibration is happening, is because you are adding a force manually through rigidbody.velocity. The better (And more efficient) way to do it is through rigidbody.AddForce(). This should allow for the rigidbody to calculate physics much smoother.

The only issue that may arise is if you plan for the player to have a constant speed. If you AddForce(1000) with no other arguments, the character will start accelerating, instead of moving at a constant speed.

If you need the player to move at a constant speed, you can append a ForceMode to! I am not sure what one you would use, but that my idea. One example would be rigidbody.AddForce(1000, ForceMode.VelocityChange),

Upvotes: 1

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