Unity中SpringJoint2D的获取和禁用_collision2d 中怎么禁用enabled-优快云博客

本文链接：https://blog.youkuaiyun.com/oTingShuo123/article/details/121488671

这篇博客介绍了如何在Unity3D中管理和使用SpringJoint2D组件。在单个SpringJoint2D的情况下，鸟（Bird）类会根据鼠标点击来调整自身位置，并限制最大距离。而在存在多个SpringJoint2D时，通过遍历所有SpringJoint2D并禁用它们，实现了对多个关节的控制。

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单个SpringJoint2D

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

public class Bird : MonoBehaviour
{
    private bool IsClick;
    public Transform RightPos;
    public float MaxDis;
    private SpringJoint2D sp;
    // Start is called before the first frame update
    private void Awake()
    //Awake()在对象实例化时调用的
    //Start()在对象第一帧时调用的，且在Update()之前。
    {
        sps = GetComponents<SpringJoint2D>();
    }
    private void OnMouseDown()
    {
        IsClick = true;
    }
    private void OnMouseUp()
    {
        IsClick = false;
        sp.enabled = false;
    }
    // Update is called once per frame
    private void Update()
    {
        if (IsClick == true)
        {
            transform.position = Camera.main.ScreenToWorldPoint(Input.mousePosition);
            transform.position -= new Vector3(0, 0,Camera.main.transform.position.z);

            if (Vector3.Distance(RightPos.position,transform.position) > MaxDis)
            {
                Vector3 Pos = (transform.position - RightPos.position).normalized;
                Pos = Pos * MaxDis;
                transform.position = Pos + RightPos.position;
            }
        }
    }
}

当存在多个SpringJoint2D时

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

public class Bird : MonoBehaviour
{
    private bool IsClick;
    public Transform RightPos;
    public float MaxDis;
    private SpringJoint2D sp;
    private Component[] sps;
    // Start is called before the first frame update
    private void Awake()
    {
        sps = GetComponents<SpringJoint2D>();
    }
    private void OnMouseDown()
    {
        IsClick = true;
    }
    private void OnMouseUp()
    {
        IsClick = false;
        foreach(SpringJoint2D sp in sps)
        {
            sp.enabled = false;
        }
    }
    // Update is called once per frame
    private void Update()
    {
        if (IsClick == true)
        {
            transform.position = Camera.main.ScreenToWorldPoint(Input.mousePosition);
            transform.position -= new Vector3(0, 0,Camera.main.transform.position.z);

            if (Vector3.Distance(RightPos.position,transform.position) > MaxDis)
            {
                Vector3 Pos = (transform.position - RightPos.position).normalized;
                Pos = Pos * MaxDis;
                transform.position = Pos + RightPos.position;
            }
        }
    }
}