rayHit.point在000Unity處實體化

我制作了一個槍腳本（使用 YT 視頻），并且 Bullethole 游戲物件應該在 RayCast 擊中物件的位置進行實體化。但它總是在 0 0 0。我嘗試了很多東西但沒有作業。

GameObject bulletHoleClone = Instantiate(bulletHole, rayHit.point, Quaternion.Euler(0, 180, 0));

銷毀（bulletHoleClone，bulletHoleTime）；

完整代碼：

using TMPro;
using UnityEngine;

public class GunScript : MonoBehaviour
{
    //Gun Stats
    public int damage;
    public float timeBetweenShooting, spread, range, reloadTime, timeBetweenShots;
    public int magazineSize, bulletsPerTap;
    public bool allowHoldButton;
    int bulletsLeft, bulletsShot;
    private float normalSpread;

    //bools
    bool shooting, readyToShoot, reloading;

    //Graphics
    public CameraShake camShake;
    public float camShakeStrengh, camShakeDuration;
    public GameObject muzzleFlash, bulletHole;
    public TextMeshProUGUI text;
    public float muzzleFlashTime = 0.1f; //Will be deleted after there is an actual Effect and not a Box
    public float bulletHoleTime = 3f;

    //Refrences
    public Camera fpsCam;
    public Transform attackPoint;
    private RaycastHit rayHit;
    public LayerMask dafuqIsEnemey;
    private Rigidbody rb;

    private void Awake()
    {
        rb = GetComponent<Rigidbody>();
        bulletsLeft = magazineSize;
        readyToShoot = true;
        normalSpread = spread;
    }

    private void Update()
    {
        MyInput();

        //Set Text to BulletAmount
        text.SetText(bulletsLeft   " / "   magazineSize);
    }

    private void MyInput()
    {
        if (allowHoldButton) shooting = Input.GetKey(KeyCode.Mouse0);
        else shooting = Input.GetKeyDown(KeyCode.Mouse0);

        if (Input.GetKeyDown(KeyCode.R) && bulletsLeft < magazineSize && !reloading) Reload();

        //PewPew
        if (readyToShoot && shooting && !reloading && bulletsLeft > 0)
        {
            bulletsShot = bulletsPerTap;
            Shoot();
        }

        if (rb.velocity.magnitude > 0)
            spread = normalSpread * 1.5f;
        else spread = normalSpread;

        if (Input.GetKey(KeyCode.LeftControl))
            spread = normalSpread * 2f;
        else spread = normalSpread;
        
    }

    private void Shoot()
    {
        readyToShoot = false;

        //Bullets go BRRRRRRRRRR
        float x = Random.Range(-spread, spread);
        float y = Random.Range(-spread, spread);

        //Calculate Direction with Spread
        Vector3 direction = fpsCam.transform.forward   new Vector3(x, y, 0);


        //Maybe Add that the Ray Isnt coming out of your Head. Instead make it apear on the GunTip
        if (Physics.Raycast(fpsCam.transform.position, direction, out rayHit, range, dafuqIsEnemey))
        {
            Debug.Log(rayHit.collider.name);

            if (rayHit.collider.CompareTag("Enemy"))
            {
                Debug.Log("Hit An Enemy");
                //rayHit.collider.GetComponent<ShootingAi>().TakeDamage(damage);
            }
        }

        //Shake Camera
        camShake.Shake(camShakeDuration, camShakeStrengh);

        //Graphics
        GameObject bulletHoleClone = Instantiate(bulletHole, rayHit.point, Quaternion.Euler(0, 180, 0));
        GameObject muzzleClone = Instantiate(muzzleFlash, attackPoint.position, Quaternion.identity);
        Destroy(muzzleClone, muzzleFlashTime);
        Destroy(bulletHoleClone, bulletHoleTime);

        Debug.Log(rayHit.point);

        bulletsLeft--;
        bulletsShot--;

        Invoke("ResetShot", timeBetweenShooting);

        if (bulletsShot > 0 && bulletsLeft > 0)
            Invoke("Shoot", timeBetweenShooting);
    }

    private void ResetShot()
    {
        readyToShoot = true;
    }

    private void Reload()
    {
        reloading = true;
        Invoke("ReloadFinished", reloadTime);
    }

    private void ReloadFinished()
    {
        bulletsLeft = magazineSize;
        reloading = false;
    }
}

uj5u.com熱心網友回復：

你什么都沒打。你檢查你是否擊中了什么東西，然后即使你沒有擊中任何東西，也會產生一個彈孔。

如果你沒有擊中任何東西，就沒有地方可以放彈孔。

問題是您將光線投射命中用作區域變數，這允許您在它實際有效的范圍之外使用它。

從你的類中洗掉 rayHit 并在 raycast 中定義它，比如

out RaycastHit rayHit

那么它應該只適用于 if 陳述句，并且在任何無效的地方都會出現編譯器錯誤。

這就提出了一個更大的問題，如果它錯過了敵人，你會怎么做，或者你應該對哪些層進行射線投射。就個人而言，我認為您希望對所有內容進行射線投射，然后您可以嘗試確定您擊中了什么以及稍后意味著什么。只有其他真正好的替代方法是對敵人進行射線投射，然后在未命中的情況下對物件重復該動作，但是繼續旋轉射線投射引擎會產生很多開銷。您最好對多個圖層進行射擊并將圖層從對撞機上移開。

PS 太你的傳播可能是方式，方式太大。對于散布值，0.01 是半度，0.1 是五度，1 是 45 度。

uj5u.com熱心網友回復：

基本上你需要轉換方向，例如 camTrans.TransformDirection。你可以試試這個方法

public class Raytest : MonoBehaviour
{
    public Camera fpsCam;
    public float maxDistance = 200f;
    public bool update;
    public GameObject objectToSpawn;
    private void Update()
    {
        if(!update) return;
        var camTrans = fpsCam.transform;
        if (Physics.Raycast(camTrans.position, camTrans.TransformDirection(Vector3.forward), out var hit, maxDistance))
        {
            Debug.DrawRay(camTrans.position, camTrans.TransformDirection(Vector3.forward) * hit.distance, Color.red);
            Debug.Log("Did Hit");
            var clone = Instantiate(objectToSpawn, hit.point, Quaternion.Euler(0, 180, 0));
            update = false;
        }
        else
        {
            Debug.DrawRay(camTrans.position, camTrans.TransformDirection(Vector3.forward) * 1000, Color.white);
            Debug.Log("Did not Hit");
        }
    }
}

擊中光線投射后

uj5u.com熱心網友回復：

我發現了問題。只需告訴 Gun 層“地面”也是敵人。現在它起作用了。謝謝

標籤：C＃ unity3d

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