UnityUI组件连线问题

Question

我绿色按键并没有安装脚本，但是还是会被连接，有什么办法能不让按键被连接。
如果还能提供撤销上一次连线和删除所有连线的方法，我可以适当追加酬金。

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

public class Class1 : MonoBehaviour, IPointerDownHandler, IPointerUpHandler, IDragHandler, IEndDragHandler
{
[Header("线宽度")]
public float lineWidth = 3f;
[Header("线颜色")]
public Color lineColor = Color.white;
[Header("线材质")]
public Material dongtai;
[Header("限制多选")]
bool isUP = true;
public Button ok;
//连线
GameObject lineObj = null;
RectTransform lineObjRT = null;
Image lineObjImg;
//初始点
Vector3 startPos = Vector3.zero;
Vector3 endPos = Vector3.zero;
// 最后落脚的物体
GameObject GetObj;

public void OnDrag(PointerEventData eventData)
{
    if (isUP)
    {
        endPos = Input.mousePosition;
        Vector3 durationPos = endPos - startPos;
        lineObjRT.sizeDelta = new Vector2(durationPos.magnitude, lineWidth);
        float angle = Mathf.Atan2(durationPos.y, durationPos.x) * Mathf.Rad2Deg;
        lineObjRT.localRotation = Quaternion.Euler(0, 0, angle);
    }
}

public void OnEndDrag(PointerEventData eventData)
{
    if (isUP)
    {
        if (eventData.pointerEnter != null)
        {
            print(eventData.pointerEnter.name);

            endPos = eventData.pointerEnter.transform.position;
            Vector3 durationPos = endPos - startPos;
            lineObjRT.sizeDelta = new Vector2(durationPos.magnitude, lineWidth);
            float angle = Mathf.Atan2(durationPos.y, durationPos.x) * Mathf.Rad2Deg;
            lineObjRT.localRotation = Quaternion.Euler(0, 0, angle);

            isUP = false;
        }
        else
        {

            print("未选中，结果为空");
        }
    }
}
public void OnPointerDown(PointerEventData eventData)
{


    //限制多选
    if (isUP)
    {
        lineObj = new GameObject("LineObj");
        lineObj.SetActive(false);

        lineObjRT = lineObj.AddComponent<RectTransform>();
        lineObjRT.pivot = new Vector2(0, 0.5f);
        lineObjRT.localScale = Vector3.one;

        lineObjImg = lineObj.AddComponent<Image>();
        lineObjImg.color = lineColor;
        lineObjImg.raycastTarget = false;

        lineObjRT.SetParent(transform);

        startPos = transform.position;

        lineObjRT.position = startPos;
        lineObjRT.sizeDelta = Vector2.zero;
        lineObj.SetActive(true);
    };


}
public void OnPointerUp(PointerEventData eventData)
{
    if (isUP)
    {
        if (eventData.pointerEnter != null)
        {
            GetObj = eventData.pointerEnter;

        }
        if (eventData.pointerEnter == null)
        {
            DestroyImmediate(lineObjRT.gameObject);
        }
    }
    if (eventData.button == PointerEventData.InputButton.Right)
    {
        DestoryAll();
        isUP = true;
    }

}
//销毁自身所有的线
void DestoryAll()
{
    for (int i = 0; i < transform.childCount; i++)
    {
        Destroy(transform.GetChild(i).gameObject);
    }

}

}

Answer 1

你可以采用unity自动组件linerenderer来实现连线呀，这样撤销连线或一键取消连线也容易些