MouseFollowRotation Unity3d鼠标点击旋转相机

using UnityEngine;

public class MouseFollowRotation : MonoBehaviour

{

public Transform target;

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

public float yMinLimit = -50, yMaxLimit = 50;

public float distance = 2, 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);

}

}