unity场景中使用Cube随机生成多段墙壁障碍，创建模型Sphere， 使用鼠标设置目标点，Sphere避开Cube到达目标位置代码

下面是一个示例代码，用于在Unity场景中使用Cube随机生成多段墙壁障碍，创建模型Sphere，并使用鼠标设置目标点，使Sphere避开Cube到达目标位置：

using UnityEngine;

public class CubeGenerator : MonoBehaviour
{
    public GameObject cubePrefab;
    public int cubeCount = 10;
    public Vector3 minSize = new Vector3(1f, 1f, 1f);
    public Vector3 maxSize = new Vector3(3f, 3f, 3f);
    public Vector3 minPosition = new Vector3(-5f, 0f, -5f);
    public Vector3 maxPosition = new Vector3(5f, 0f, 5f);

    private void Start()
    {
        GenerateCubes();
    }

    private void GenerateCubes()
    {
        for (int i = 0; i < cubeCount; i++)
        {
            GameObject cube = Instantiate(cubePrefab);
            cube.transform.position = GetRandomPosition();
            cube.transform.localScale = GetRandomSize();
        }
    }

    private Vector3 GetRandomPosition()
    {
        float x = Random.Range(minPosition.x, maxPosition.x);
        float y = Random.Range(minPosition.y, maxPosition.y);
        float z = Random.Range(minPosition.z, maxPosition.z);

        return new Vector3(x, y, z);
    }

    private Vector3 GetRandomSize()
    {
        float x = Random.Range(minSize.x, maxSize.x);
        float y = Random.Range(minSize.y, maxSize.y);
        float z = Random.Range(minSize.z, maxSize.z);

        return new Vector3(x, y, z);
    }
}

public class SphereMovement : MonoBehaviour
{
    public Transform target;
    public float avoidanceForce = 5f;
    public float rayDistance = 2f;

    private Rigidbody rb;

    private void Start()
    {
        rb = GetComponent<Rigidbody>();
    }

    private void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            SetTargetPosition();
        }

        AvoidObstacles();
    }

    private void SetTargetPosition()
    {
        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        RaycastHit hit;

        if (Physics.Raycast(ray, out hit))
        {
            target.position = hit.point;
        }
    }

    private void AvoidObstacles()
    {
        Vector3 desiredVelocity = (target.position - transform.position).normalized;

        RaycastHit hit;
        if (Physics.Raycast(transform.position, transform.forward, out hit, rayDistance))
        {
            Vector3 avoidanceDirection = Vector3.Reflect(transform.forward, hit.normal);
            desiredVelocity += avoidanceDirection * avoidanceForce;
        }

        rb.velocity = desiredVelocity;
    }
}

在Unity中，创建一个空的GameObject，并将`CubeGenerator`脚本和`SphereMovement`脚本分别附加到该GameObject上。然后，指定Cube的预制体(cubePrefab)、生成的Cube数量(cubeCount)、Cube的最小和最大尺寸(minSize和maxSize)、以及Cube的最小和最大位置(minPosition和maxPosition)。

还需要在场景中创建一个Sphere对象，并将`SphereMovement`脚本附加到该对象上。设置避让力(avoidanceForce)和射线距离(rayDistance)。

运行场景后，你可以使用鼠标点击场景中的位置，设置Sphere的目标点。Sphere将会避开Cube墙壁障碍物，通过射线检测来调整移动方向，以到达目标位置。

希望这个示例对你有所帮助！