c# - unity raycast CS1003: ',' expected

Question

While trying to raycast i cannot get this to work, ivee tride changing symbols, ive tried using raycasthit outside and passing it through. i just cant get it to work..

public int count = 0;
public Transform origin;
void Start()
{
    
}

// Update is called once per frame
void Update()
{
    if (Input.GetKey(KeyCode.Mouse1))
    {
        Physics.Raycast(origin.position , RaycastHit hitinfo);
        if (hitinfo.collider.tag == "enemy")
        {
            count++;
        }
    }

question from:https://stackoverflow.com/questions/65925636/unity-raycast-cs1003-expected

Answer 1

You have to declare a RaycastHit - and this of course outside your Physics.Raycast call.

See this code from unity documentation - you can also pass in a layer mask:

using UnityEngine;
// C# example.

public class ExampleClass : MonoBehaviour
{
    // See Order of Execution for Event Functions for information on FixedUpdate() and Update() related to physics queries
    void FixedUpdate()
    {
        // Bit shift the index of the layer (8) to get a bit mask
        int layerMask = 1 << 8;

        // This would cast rays only against colliders in layer 8.
        // But instead we want to collide against everything except layer 8. The ~ operator does this, it inverts a bitmask.
        layerMask = ~layerMask;

        RaycastHit hit;
        // Does the ray intersect any objects excluding the player layer
        if (Physics.Raycast(transform.position, transform.TransformDirection(Vector3.forward), out hit, Mathf.Infinity, layerMask))
        {
            Debug.DrawRay(transform.position, transform.TransformDirection(Vector3.forward) * hit.distance, Color.yellow);
            Debug.Log("Did Hit");
        }
        else
        {
            Debug.DrawRay(transform.position, transform.TransformDirection(Vector3.forward) * 1000, Color.white);
            Debug.Log("Did not Hit");
        }
    }
}