用鼠标旋转统一坦克炮塔

Question

我正在做一个坦克游戏统一，我想旋转坦克的炮塔与鼠标。主照相机是炮塔的孩子。

我试过这个：

Ray dir = MainCamera.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast(dir, out hit)){}
Turret.transform.LookAt(hit.point);

但炮塔开始无限旋转。我想是因为MainCamera是炮塔的孩子。所以我不知道该怎么做。

你能帮帮我吗?

Answer 1

计算鼠标与炮塔之间的夹角，并用quaternion.lookat旋转

Answer 2

你可以试试这样的东西。

using UnityEngine;

public class Rotator : MonoBehaviour
{

    [SerializeField]
    private Camera _camera;

    [SerializeField] private float _rotationFactor = 0.01f;

    private Transform _cameraTransform;
    
    void Start()
    {
        _cameraTransform = _camera.transform;
    }

    void Update()
    {
        var screenCenter = new Vector3(Screen.width / 2.0f, Screen.height / 2.0f);
        // This prevents camera rotation when mouse is in 100 pixels circle in screen center.
        if (!(Input.mousePosition - screenCenter).magnitude < 100f) 
            return;
        
        var mouseWorldPos = _camera.ScreenToWorldPoint(Input.mousePosition + Vector3.forward);
        Debug.Log(mouseWorldPos);
        _camera.transform.rotation = Quaternion.Slerp(
            _camera.transform.rotation,
            Quaternion.LookRotation(mouseWorldPos - _cameraTransform.position),
            _rotationFactor);
    }
}