旋转缩放代码

using UnityEngine;

using System.Collections;

// 直接放在相机上，控制相机的旋转和缩放 //

public class CameraContro : MonoBehaviour {

public Transform target;

    public float xSpeed=200, ySpeed=200, mSpeed=10;

    public float yMinLimit=-50, yMaxLimit=50;

    public float distance=7, minDistance=2, maxDistance=30;
//bool needDamping = false;

    public bool needDamping =true;

    float damping = 5.0f;
public float x = 0.0f;

    public float y = 0.0f;
public void SetTarget( GameObject go )
{

        target = go.transform;

    }

    // Use this for initialization

    void Start () {

        Vector3 angles = transform.eulerAngles;

        x = angles.y;

        y = angles.x;

    }
// Update is called once per frame

    void LateUpdate ()

    {
if (target)

        {

            //use the light button of mouse to rotate the camera

            if( Input.GetMouseButton(0) )

            {

                x += Input.GetAxis("Mouse X") * xSpeed * 0.02f;

                y -= Input.GetAxis("Mouse Y") * ySpeed * 0.02f;
y = ClampAngle(y, yMinLimit, yMaxLimit);
//print(Input.GetAxis("Mouse X"));

                //print( Input.GetAxis("Mouse Y"));

                //print(x);

                //print(y);
}
distance -= Input.GetAxis("Mouse ScrollWheel")*mSpeed;

            distance = Mathf.Clamp(distance, minDistance, maxDistance);
Quaternion rotation = Quaternion.Euler(y, x, 0.0f);

            Vector3 disVector = new Vector3( 0.0f, 0.0f, -distance );

            Vector3 position = rotation * disVector + target.position;

            //adjust the camera

            if( needDamping )

            {

                transform.rotation = Quaternion.Lerp(transform.rotation, rotation, Time.deltaTime*damping);

                transform.position = Vector3.Lerp(transform.position, position, Time.deltaTime*damping);

            }

            else

            {

                transform.rotation = rotation;

                transform.position = position;

            }
}

    }
static float ClampAngle (float angle, float min, float max)

    {

        if (angle < -360)

            angle += 360;

        if (angle > 360)

            angle -= 360;

        return Mathf.Clamp (angle, min, max);

    }

}

旋转缩放代码