纳金网

标题: PC鼠标控制相机脚本 [打印本页]

作者: 王者再临 时间: 2014-11-27 04:02
标题: PC鼠标控制相机脚本
using UnityEngine;

//用于产品展示类的相机脚本,拖拽旋转.滚轮放大缩小.带惯性缓冲效果.
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;

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;
}

void Start()
{
      Vector3 angles = transform.eulerAngles;
      x = angles.y;
      y = angles.x;
}

void Update()
{
      if (target)
      {
         //鼠标左键旋转相机
         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);
         }

         //鼠标滚轮拉近拉远相机
         distance -= Input.GetAxis("Mouse ScrollWheel") * mSpeed;
         distance = Mathf.Clamp(distance, minDistance, maxDistance);

         //计算相机新的旋转角度和距离位置
         Quaternion rotation = Quaternion.Euler(y, x, 0.0f);
         Vector3 disVector = new Vector3(0.0f, 0.0f, -distance);
         Vector3 position = rotation * disVector + target.position;

         //调整相机
         if (needDamping) //是否使用缓冲效果
         {
            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;
         }

         //鼠标右键移动目标物体
         if (Input.GetMouseButton(1))
         {
            target.transform.Translate(Time.deltaTime * this.mSpeed *Input.GetAxis("Mouse X"), 0, 0, Camera.main.transform);
            target.transform.Translate(0, Time.deltaTime * this.mSpeed * Input.GetAxis("Mouse Y"), 0);
         }
         return;
      }
}

//钳制角度
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);
}
}

作者: hyui 时间: 2014-11-27 06:02
good code !

欢迎光临纳金网 (http://go.narkii.com/club/)