Question

我正在尝试统一实施RADAR传感器。我目前正在使用球体投射来识别物体并测量其速度和距离。此时，即使在球体投射的半径范围内有多个物体，它也只能识别最近的物体。如何让它识别球体内的所有物体。？

任何帮助将不胜感激.. 这就是我现在所做的，它只识别识别最近的对象。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class spherecast : MonoBehaviour
{

    Rigidbody rb;


    public GameObject curobject;

    public float radius;
    public float maxdist;
    public LayerMask layermask;
    public float velocity;
    public Time deltatime;
    public Vector3 previous;

    private Vector3 origin;
    private Vector3 direction;

    private float hitdist;
    // Use this for initialization
    void Start()
    {
        previous = curobject.transform.position;
    }

    // Update is called once per frame
    void Update()
    {
        velocity = hitdist/Time.deltaTime;
        origin = transform.position;
        direction = transform.forward;
        RaycastHit hit;
        if (Physics.SphereCast(origin, radius, direction, out hit, maxdist, layermask, QueryTriggerInteraction.UseGlobal))
        {
            curobject = hit.transform.gameObject;
            hitdist = hit.distance;
            Debug.Log("Distance" + hitdist);
            velocity = ((curobject.transform.position - previous).magnitude) / Time.deltaTime;
            previous = curobject.transform.position;
            Debug.Log("Velocity" + velocity);
           // Debug.Log("Velocity = " + velocity);
        }
        else
        {
            hitdist = maxdist;
            curobject = null;
        }
    }
    private void ondrawgizmosselected()
    {

        Gizmos.color = Color.red;
        Debug.DrawLine(origin, origin + direction * hitdist);
        Gizmos.DrawWireSphere(origin + direction * hitdist, radius);
    }
}

Answer 1

如何让它识别球体内的所有物体。？

我认为你需要使用SphereCastAll代替SphereCast。

https://docs.unity3d.com/ScriptReference/Physics.SphereCastAll.html

<强>答案：

“与Physics.SphereCast类似，但此函数将返回球体扫描相交的所有命中。”

它返回一个RaycastHit []。

如何识别球体中的多个对象？

1 个答案: