Unity3D 一句话实现拖动鼠标使Cube旋转

通过本文，你将学会如何使用一句代码实现鼠标拖动使Cube旋转

效果预览：

灵敏度可调

代码如下

using UnityEngine;

public class RotateCube : MonoBehaviour
{
    public float sensitive = 0.001f;
    private void OnMouseDrag()
    {
        gameObject.transform.Rotate(new Vector3(0, (Input.mousePosition.x- Camera.main.WorldToScreenPoint(gameObject.transform.position).x)* sensitive, 0));
    }
}

再来一份：

using UnityEngine;

public class RotateCube : MonoBehaviour
{
    float value = 0f;
    public float sensitive = 1.5f;
    private void OnMouseDrag()
    {
       value += Input.GetAxis("Mouse X");
        gameObject.transform.Rotate(new Vector3(0, value * sensitive, 0));
    }
    private void OnMouseUp()
    {
        value = 0f;
    }
}

下面是笔者收藏的其他网友的方法：基本原理是将鼠标拖动的距离转换为物体旋转的角度

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);
    }
}

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标签：Unity3D 、Cube 、Rotate、LocalEulerAngles,鼠标拖动、物体旋转