在被擊中后將游戲對象向后移動（左/右/后）？

Question

我使用 isKinematic = true 的剛體和 isTrigger isTrigger = true isKinematic = true的盒子對撞機。 在 object 與另一個碰撞后，我將 object 移動到碰撞后幾英寸處。 有沒有更好的方法來使用標准化來實現這一點？ 這樣它會自動計算從 GameObject 到與之碰撞的 Box Collider 的距離，並將用戶放在它后面。 由於有時需要更改 x 值，有時需要更改其 z，因此這些值也可能為負數。 我所做的只是一個快速修復，如果值為負數，則無法正常工作。

using UnityEngine;
using System.Collections;
using UnityEngine;

public class CollisionDetector : MonoBehaviour
{
    public GameObject PlayerPos;


    public void OnTriggerEnter(Collider col)
    {
        if(col.gameObject.tag == "CollideWithCam")
    {
        Debug.Log("HIT");
        StartCoroutine(MoveBack());
    }
    }

    IEnumerator MoveBack()
    {
        yield return new WaitForSeconds(0.1f);
        PlayerPos.transform.position = new Vector3(PlayerPos.transform.position.x-1f, PlayerPos.transform.position.y, PlayerPos.transform.position.z-1f);
    }
}

Answer 1

您只需計算 object 相對於障礙物的 position。 之后，您可以根據需要修改相對向量並將其應用於播放器。 像這樣的東西：

    // No need to store GameObject when only Transform is needed.
    [SerializeField]
    private Transform player;
    
    // You can use [SerializeField] attribute to modify this value via inspector 
    // and keep it private.
    [SerializeField]
    private float bounceDistance = 1;
    
    private void OnTriggerEnter(Collider other)
    {
        // Instantly return if 'other' object has wrong tag. 
        // 'CompareTag' is mush faster than '==' operator.
        if (other.CompareTag("CollideWithCam")) return;

        // Might consider this value something like 'direction from the hit':
        Vector3 relativePosition = other.transform.position - transform.position;
        relativePosition = relativePosition.normalized * bounceDistance;
        
        // It is not clear what you trying to achieve.
        // Place the player behind the bounced object?
        StartCoroutine(MovePlayerTo(transform.position + relativePosition));

        // Or place the player behind the obstacle?
        StartCoroutine(MovePlayerTo(other.transform.position - relativePosition));
    }

    // Moving player to some position.
    private IEnumerator MovePlayerTo(Vector3 position)
    {
        // Defining variable with meaningful name instead of using magic value directly.
        float delay = 0.1f;
        yield return new WaitForSeconds(delay);
        
        player.position = position;
    }

請注意，在示例中，玩家始終出現在距游戲對象中心的預定義距離處。 如果您需要確切的碰撞點，最好禁用觸發器並使用OnCollisionEnter ：

    private void OnCollisionEnter(Collision other)
    {
        Vector3 hitDirection = other.contacts[0].normal;
        Vector3 hitPoint = other.contacts[0].point;
        StartCoroutine(MovePlayerTo(hitPoint - hitDirection));
    }

（您還需要忽略不相關的碰撞）。