C#•9mo ago

why is my player floating, twitching and can almost not go up a ramp

so im learning c# for unity and i made a (very) litle scene to test my first person controls i made. but the wierd thing is that the gravity is acting wierd. ill send a video and the code i use.

// public's
public float speed;
public float jumpForce;

// private's
private Rigidbody rb;
private bool isJumping = false;

void Start()
{
    transform.position = new Vector3(0,1,0);
    rb = GetComponent<Rigidbody>();
}


void Update()
{
    if(!isJumping)
    {
        Move();

        if(Input.GetKeyDown(KeyCode.Space))
        {
            Jump();
        }
    }
}

private void Move()
{
    Vector3 direction = Vector3.zero;

    if (Input.GetKey(KeyCode.W))
    {
        direction += transform.forward;
    }

    if (Input.GetKey(KeyCode.S))
    {
        direction -= transform.forward;
    }

    if (Input.GetKey(KeyCode.D))
    {
        direction += transform.right;
    }

    if (Input.GetKey(KeyCode.A))
    {
        direction -= transform.right;
    }

    direction.Normalize();

    
    rb.velocity = direction * speed;
}

private void Jump()
{
    if (isJumping == false)
    {
        isJumping = true;
        rb.AddForce(Vector3.up * jumpForce, ForceMode.Impulse);
    }
}

private void OnCollisionEnter(Collision collision)
{
    if(isJumping == true)
    {
        isJumping= false;   
    }
}

// public's
public float speed;
public float jumpForce;

// private's
private Rigidbody rb;
private bool isJumping = false;

void Start()
{
    transform.position = new Vector3(0,1,0);
    rb = GetComponent<Rigidbody>();
}


void Update()
{
    if(!isJumping)
    {
        Move();

        if(Input.GetKeyDown(KeyCode.Space))
        {
            Jump();
        }
    }
}

private void Move()
{
    Vector3 direction = Vector3.zero;

    if (Input.GetKey(KeyCode.W))
    {
        direction += transform.forward;
    }

    if (Input.GetKey(KeyCode.S))
    {
        direction -= transform.forward;
    }

    if (Input.GetKey(KeyCode.D))
    {
        direction += transform.right;
    }

    if (Input.GetKey(KeyCode.A))
    {
        direction -= transform.right;
    }

    direction.Normalize();

    
    rb.velocity = direction * speed;
}

private void Jump()
{
    if (isJumping == false)
    {
        isJumping = true;
        rb.AddForce(Vector3.up * jumpForce, ForceMode.Impulse);
    }
}

private void OnCollisionEnter(Collision collision)
{
    if(isJumping == true)
    {
        isJumping= false;   
    }
}

6 Replies

BluDay•9mo ago

What would happen if you don't try setting the velocity property of the rigidbody directly? In Jump(), you are using the AddForce() method to change the velocity of rb In Move(), you are updating the velocity directly

BluDay•9mo ago

https://discussions.unity.com/t/player-falls-slowly-like-a-feather/257193

Unity Discussions

Player falls slowly like a feather

Hello everyone! I’m working on a 2D game wherein there is involvement of slopes. Now, within the case of jumping, the player jumps, reaches a height but falls back slowly like a feather. Similar behavior is seen in the case of player movement as well, when player moves, and at the time of falling, it falls down slowly. Note:- I’m using apply ...

nissemanenOP•9mo ago

thank you. its late for me so i cant read this now but in Move() ive already tryed to change the rb.velocity =... to rb.AddForce(...) but none of the setings gave me what i wanted. i gues ill try tomorow. thank you anyways!

BluDay•9mo ago

Sure thing! Try this when you have time:

c#
void Update()
{
    if (!isJumping)
    {
        if (Input.GetKeyDown(KeyCode.Space))
        {
            Jump();
        }
        else
        {
            Move();
        }
    }
}

c#
void Update()
{
    if (!isJumping)
    {
        if (Input.GetKeyDown(KeyCode.Space))
        {
            Jump();
        }
        else
        {
            Move();
        }
    }
}

nissemanenOP•9mo ago

thank you for the help! but i fixed it myself. i just had to add a "isGrounded" bool to see if i am tuching the gound. thanks anyways

BluDay•9mo ago

Good! Good luck

Gaming

Programming

why is my player floating, twitching and can almost not go up a ramp