围绕摄像机旋转

var target : Transform;
var distance = 10.0;


var xSpeed = 250.0;
var ySpeed = 120.0;


var yMinLimit = -20;
var yMaxLimit = 80;


private var x = 0.0;
private var y = 0.0;


@script AddComponentMenu("Camera-Control/Mouse Orbit")


function Start () {
    var angles = transform.eulerAngles;
    x = angles.y;
    y = angles.x;


// Make the rigid body not change rotation
    if (rigidbody)
rigidbody.freezeRotation = true;
}


function LateUpdate () {
    if (target) {
        Debug.Log("Mouse X : "+ Input.GetAxis("Mouse X")); Debug.Log( "Mouse Y: "+ Input.GetAxis("Mouse Y"));
        x += Input.GetAxis("Mouse X") * xSpeed * 0.02;
        y -= Input.GetAxis("Mouse Y") * ySpeed * 0.02;
 
  y = ClampAngle(y, yMinLimit, yMaxLimit);
        
        var rotation = Quaternion.Euler(y, x, 0);
        var position = rotation * Vector3(0.0, 0.0, -distance) + target.position;
        
        transform.rotation = rotation;
        transform.position = position;
    }
}


static function ClampAngle (angle : float, min : float, max : float) {
if (angle < -360)
angle += 360;
if (angle > 360)
angle -= 360;
return Mathf.Clamp (angle, min, max);
}