围绕一个中心对象旋转对象

Question

嗨，大家好我是这样写代码来围绕一个中心对象旋转一个对象的，但是我做了一些错误的事情，有人可以解释我是什么:)？

public void RotateCamera(GameObject _center) 
{ 
    Vector3 mousePos = camera.WorldToScreenPoint(Input.mousePosition); 
    Vector3 centerPos = camera.WorldToScreenPoint(_center.transform.position); 
    float angle = Vector3.Angle(centerPos,mousePos); 
    Camera.mainCamera.transform.Rotate(centerPos,angle); 
} 

更新后的代码仍然不工作：

void Update() 
{ 
RotateCamera(_player); 
} 

public void RotateCamera(GameObject _center) 
{ 
    float speedMod = 10.0f; 
    Vector3 mousePos = camera.WorldToScreenPoint(Input.mousePosition); 
    Vector3 centerPos = _center.transform.position; 
    Camera.mainCamera.transform.LookAt(centerPos); 
    Camera.mainCamera.transform.RotateAround (centerPos,mousePos,20 * Time.deltaTime * speedMod); 
} 

Answer 1

，如果你想要做的是围绕一个对象

public TargetClass target;//the target object 
    private float speedMod = 10.0f;//a speed modifier 
    private Vector3 point;//the coord to the point where the camera looks at 

    void Start() {//Set up things on the start method 
     point = target.transform.position;//get target's coords 
     transform.LookAt(point);//makes the camera look to it 
    } 

    void Update() {//makes the camera rotate around "point" coords, rotating around its Y axis, 20 degrees per second times the speed modifier 
     transform.RotateAround (point,new Vector3(0.0f,1.0f,0.0f),20 * Time.deltaTime * speedMod); 
    }