nissemanen Posts - Answer Overflow

nissemanen

•Created by nissemanen on 4/7/2024 in #help

Unity ray casting giving weird results

so I need ground checking in my game to see if you are touching the ground or not. but when I do the ray cast it says that I'm only grounded when I look in a specific place. like if it only checks when I'm looking in a perfect number of degrees. i am very new to coding in unity and i have no knowledge on what culd be the problem. here is a snipet of my code. just ask me if you need everything:

c#
void checkForGround()
{
    Ray ray = new Ray(transform.position, new Vector3(0f, -1.1f, 0f));
    RaycastHit hit;
    Debug.DrawRay(transform.position, new Vector3(0f, -1.1f, 0f), Color.green);

    if(Physics.Raycast(ray, out hit, 1, ~RayLayerMask))
    {
        Debug.Log("grounded " + hit.collider.gameObject.name);
        isGrounded = true;
    }else
    {
        Debug.Log("not grounded");
        isGrounded = false;
    }
}

c#
void checkForGround()
{
    Ray ray = new Ray(transform.position, new Vector3(0f, -1.1f, 0f));
    RaycastHit hit;
    Debug.DrawRay(transform.position, new Vector3(0f, -1.1f, 0f), Color.green);

    if(Physics.Raycast(ray, out hit, 1, ~RayLayerMask))
    {
        Debug.Log("grounded " + hit.collider.gameObject.name);
        isGrounded = true;
    }else
    {
        Debug.Log("not grounded");
        isGrounded = false;
    }
}

(this is run in Update())

12 replies

CC#

•Created by nissemanen on 4/3/2024 in #help

minor glitch, player twitching

so i have a glitch where the player starts "twitching" when you walk beside a block or just on a block thats not a plane. ive tried a bunch of things and now im getting brain bleed. i have no idea why this is happening (plus ive got a automatic parkour movement without implementing it!). ill leave the code and a vid of me showcasing it down below. thanks in advance

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

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

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


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

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();

    if (Input.GetKey(KeyCode.LeftShift))
    {
        rb.velocity = direction * (speed * 2);
    }
    else
    {
        rb.velocity = direction * speed;
    }
}

private void Jump()
{
    if (isJumping == false)
    {
        isJumping = true;
        rb.AddForce((Vector3.up+(rb.velocity/5)) * jumpForce, ForceMode.Impulse);
    }
    
}

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

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

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

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


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

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();

    if (Input.GetKey(KeyCode.LeftShift))
    {
        rb.velocity = direction * (speed * 2);
    }
    else
    {
        rb.velocity = direction * speed;
    }
}

private void Jump()
{
    if (isJumping == false)
    {
        isJumping = true;
        rb.AddForce((Vector3.up+(rb.velocity/5)) * jumpForce, ForceMode.Impulse);
    }
    
}

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

1 replies

CC#

•Created by nissemanen on 4/2/2024 in #help

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;   
    }
}

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