Unity 拖动鼠标物体旋转

Unity 拖动鼠标物体旋转查看

通过拖动鼠标左键来旋转物体，基本原理是将鼠标拖动的距离转换为物体旋转的角度。假设Cube

using UnityEngine;
using System.Collections;

public class NewBehaviourScript : MonoBehaviour {

    private Vector3 startPoint;
    private Vector3 endPoint;
    private int disToAngle=5;
    void Update () {
        if(Input.GetMouseButtonDown(0)){
            startPoint=Input.mousePosition;
        }
        if(Input.GetMouseButton(0)){
            endPoint=Input.mousePosition;
        }
        float dx=endPoint.x-startPoint.x;
        float angle=dx/disToAngle;
        this.transform.localEulerAngles=new Vector3(0,angle,0);

    }
}