《手写摇杆》

 

 注意：脚本挂在小图片上

 

 

-----------------代码如下-----------------

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;

public class YG : MonoBehaviour,IBeginDragHandler,IDragHandler,IEndDragHandler
{
Vector2 pos, startpos;
bool b;
float len = 33f;
public GameObject cube;
public GameObject ima; //大图片
// Start is called before the first frame update
void Start()
{

}

// Update is called once per frame
void Update()
{
if (b)
{
cube.transform.LookAt(new Vector3(pos.x, 0, pos.y) + cube.transform.position);
cube.transform.Translate(0, 0, Time.deltaTime * 5f);
}
}

public void OnBeginDrag(PointerEventData eventData)
{
startpos = transform.position;
}

public void OnDrag(PointerEventData e)
{
b = true;
pos = e.position - startpos;
transform.localPosition = Vector2.ClampMagnitude(pos, len);
}

public void OnEndDrag(PointerEventData eventData)
{
b = false;
transform.position = ima.transform.position;
}
}