camera_mover.js

var speed = 10;                  //速度
var rotspeed = 40;                 //腐烂速度
var maxdist = 400;                 //最大距离
var mask : LayerMask;                //面具 层
private var horiz : float = 0;             //水平的
private var vert : float = 0;              //垂直的
private var zoom : float = 0;             //缩放
private var roty : float = 0;              //转角y
private var rotx : float = 0;              //转角x
private var hit : RaycastHit;              //光击中的的点
private var prehit : RaycastHit;             //前置的光点
function FixedUpdate () {
    vert = Input.GetAxis ("Vertical");
    horiz = Input.GetAxis ("Horizontal");
    zoom = Input.GetAxis ("Zoom");
    rotx = Input.GetAxis ("Rotatex");
    roty = Input.GetAxis ("Rotatey");
    if (horiz != 0 || vert != 0 || zoom != 0) {
        dir = transform.TransformDirection(Vector3.up);
        dir.y = 0;
        dir = dir.normalized;

        dir2 = transform.TransformDirection(Vector3.right);
        dir2.y = 0;
        dir2 = dir2.normalized;

        dir3 = transform.TransformDirection(Vector3.forward);
        //dir3.y = 0;
        dir3 = dir3.normalized;
        /*var dir = transform.TransformDirection (Vector3.right);
        var dir2 = transform.TransformDirection (Vector3.up);
        dir2.y = 0;
        pos += dir * horiz;
        pos += dir2 * vert;
        transform.position = pos;*/
        rigidbody.AddForce (dir2 * Time.deltaTime * horiz * speed);
        rigidbody.AddForce (dir * Time.deltaTime * vert * speed);
        if (transform.position.y <= maxdist || zoom > 0) {
            rigidbody.AddForce (dir3 * Time.deltaTime * zoom * speed);
        }
        //transform.position = Vector3.Lerp (transform.position, pos, Time.deltaTime * smooth);
    }
    if (rotx != 0 || roty != 0) {
        Physics.Raycast (transform.position,transform.TransformDirection (Vector3.forward),hit,1500, mask);
        if (hit.point != Vector3.zero) {
            transform.RotateAround (hit.point, Vector3.up, rotspeed * Time.deltaTime * rotx);
            transform.RotateAround (hit.point, transform.TransformDirection (Vector3.right), rotspeed * Time.deltaTime * roty);
            prehit = hit;
        } else {
            transform.RotateAround (prehit.point, Vector3.up, rotspeed * Time.deltaTime * rotx);
            transform.RotateAround (prehit.point, transform.TransformDirection (Vector3.right), rotspeed * Time.deltaTime * roty);
        }
    }
}