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前言
注意，本文是本人的学习笔记记录，这里先记录基本的代码，后面用到了再回来进行实现和整理
素材
https://assetstore.unity.com/packages/2d/gui/icons/2d-simple-ui-pack-218050
框架：
RedPointSystem.cs
using System.Collections.Generic;
using UnityEngine;namespace RedpointSystem
{public class RedPointNode{public int redNum; // 红点数量public string strKey; // 节点关键字public Dictionary<string, RedPointNode> children; // 子节点字典public delegate void RedPointChangeDelegate(int redNum); // 红点变化委托public RedPointChangeDelegate OnRedPointChange; // 红点变化事件public RedPointNode(string key){strKey = key;children = new Dictionary<string, RedPointNode>();}}public class RedPointSystem{private static RedPointSystem instance = new RedPointSystem(); // 单例实例public static RedPointSystem Instance // 单例访问属性{get { return instance; }}public RedPointNode root; // 根节点private RedPointSystem(){this.root = new RedPointNode(RedPointKey.Root); // 根节点初始化}// 添加节点public RedPointNode AddNode(string key){if (FindNode(key) != null){return null; // 如果节点已存在，则返回空}string[] keys = key.Split('|'); // 按'|'分割关键字RedPointNode curNode = root;curNode.redNum += 1; // 根节点红点数量加一curNode.OnRedPointChange?.Invoke(curNode.redNum); // 触发红点变化事件foreach (string k in keys){if (!curNode.children.ContainsKey(k)){curNode.children.Add(k, new RedPointNode(k)); // 如果子节点不包含该关键字，则添加新节点}curNode = curNode.children[k];curNode.redNum += 1; // 子节点红点数量加一curNode.OnRedPointChange?.Invoke(curNode.redNum); // 触发红点变化事件}return curNode;}// 查找节点public RedPointNode FindNode(string key){string[] keys = key.Split('|'); // 按'|'分割关键字RedPointNode curNode = root;foreach (string k in keys){if (!curNode.children.ContainsKey(k)){return null; // 如果子节点不包含该关键字，则返回空}curNode = curNode.children[k];}return curNode;}// 删除节点public void DeleteNode(string key){if (FindNode(key) == null){return; // 如果节点不存在，则返回}DeleteNode(key, root);}// 递归删除节点private RedPointNode DeleteNode(string key, RedPointNode node){string[] keys = key.Split('|'); // 按'|'分割关键字if (key == "" || keys.Length == 0){node.redNum = Mathf.Clamp(node.redNum - 1, 0, node.redNum); // 调整节点红点数量node.OnRedPointChange?.Invoke(node.redNum); // 触发红点变化事件return node;}string newKey = string.Join("|", keys, 1, keys.Length - 1); // 获取新的关键字RedPointNode curNode = DeleteNode(newKey, node.children[keys[0]]); // 递归删除子节点node.redNum = Mathf.Clamp(node.redNum - 1, 0, node.redNum); // 调整节点红点数量node.OnRedPointChange?.Invoke(node.redNum); // 触发红点变化事件// 移除红点数量为零的子节点if (curNode.children.Count > 0){foreach (RedPointNode child in curNode.children.Values){if (child.redNum == 0){child.children.Remove(child.strKey);}}}return node;}// 设置回调函数public void SetCallBack(string key, RedPointNode.RedPointChangeDelegate cb){RedPointNode node = FindNode(key);if (node == null){return; // 如果节点不存在，则返回}node.OnRedPointChange += cb; // 设置红点变化事件的回调函数}// 获取红点数量public int GetRedpointNum(string key){RedPointNode node = FindNode(key);if (node == null){return 0; // 如果节点不存在，则返回0}return node.redNum; // 返回节点的红点数量}}public class RedPointKey{// 根节点关键字public const string Root = "Root";// Play节点及其子节点关键字public const string Play = "Play";public const string Play_LEVEL1 = "Play|Level1"; // Play节点下的Level1节点public const string Play_LEVEL1_HOME = "Play|Level1|HOME"; // Level1节点下的HOME子节点public const string Play_LEVEL1_SHOP = "Play|Level1|SHOP"; // Level1节点下的SHOP子节点public const string Play_LEVEL2 = "Play|Level2"; // Play节点下的Level2节点public const string Play_LEVEL2_HOME = "Play|Level2|HOME"; // Level2节点下的HOME子节点public const string Play_LEVEL2_SHOP = "Play|Level2|SHOP"; // Level2节点下的SHOP子节点}}
使用案例
RootPanel.cs
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using RedpointSystem;public class RootPanel : MonoBehaviour
{public GameObject Canvas; // UI画布对象public MenuPanel menuPanel; // 菜单面板对象public LevelPanel levelPanel; // 关卡面板对象private void Awake(){// 在Awake方法中初始化红点节点，表示需要显示红点的条件// 示例：如果跨过每月最后一天的0点，则显示Play|Level1|HOME节点的红点RedPointSystem.Instance.AddNode(RedPointKey.Play_LEVEL1_HOME);// 示例：如果任务完成，可以领奖，则显示Play|Level1|SHOP节点的红点RedPointSystem.Instance.AddNode(RedPointKey.Play_LEVEL1_SHOP);// 其他条件类似，根据具体逻辑添加不同的红点节点RedPointSystem.Instance.AddNode(RedPointKey.Play_LEVEL2_HOME);RedPointSystem.Instance.AddNode(RedPointKey.Play_LEVEL2_SHOP);}private void Start() {// 在Start方法中设置菜单面板可见，关卡面板不可见menuPanel.gameObject.SetActive(true);levelPanel.gameObject.SetActive(false);}
}
MenuPanel.cs
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using RedpointSystem;public class MenuPanel : MonoBehaviour
{public GameObject playBtn; // 播放按钮对象public GameObject continueBtn; // 继续按钮对象public GameObject optionsBtn; // 选项按钮对象public GameObject QuitBtn; // 退出按钮对象public LevelPanel LevelPanel; // 关卡面板对象void Start(){// 在Start方法中为播放按钮添加点击事件监听器，绑定到OnPlay方法playBtn.GetComponent<Button>().onClick.AddListener(OnPlay);// 初始化红点状态InitRedPointState();}void OnPlay(){// 点击播放按钮后，隐藏菜单面板，显示关卡面板this.gameObject.SetActive(false);LevelPanel.gameObject.SetActive(true);}void InitRedPointState(){// 获取Play节点的红点数量int redNum = RedPointSystem.Instance.GetRedpointNum(RedPointKey.Play);// 根据红点数量更新红点状态RefreshRedPointState(redNum);// 设置回调函数，当Play节点的红点数量发生变化时刷新红点状态RedPointSystem.Instance.SetCallBack(RedPointKey.Play, RefreshRedPointState);}void RefreshRedPointState(int redNum){// 查找播放按钮下的红点和数字对象Transform redPoint = playBtn.transform.Find("RedPoint");Transform redNumText = redPoint.transform.Find("Num");// 根据红点数量决定是否显示红点if (redNum <= 0){redPoint.gameObject.SetActive(false);}else{redPoint.gameObject.SetActive(true);redNumText.GetComponent<Text>().text = redNum.ToString(); // 更新红点数字文本}}
}
LevelPanel.cs
using RedpointSystem;
using UnityEngine;
using UnityEngine.UI;public class LevelPanel : MonoBehaviour
{// UI元素引用public GameObject Back1Btn; // 返回按钮public MenuPanel menuPanel; // 菜单面板引用public GameObject Level1Btn; // 关卡1按钮public GameObject Level1Container; // 关卡1容器public GameObject Level1HomeBtn; // 关卡1的主页按钮public GameObject Level1ShopBtn; // 关卡1的商店按钮public GameObject Level2Btn; // 关卡2按钮public GameObject Level2Container; // 关卡2容器public GameObject Level2HomeBtn; // 关卡2的主页按钮public GameObject Level2ShopBtn; // 关卡2的商店按钮void Start(){// 初始时隐藏关卡容器Level1Container.SetActive(false);Level2Container.SetActive(false);// 给返回按钮添加点击事件监听器Back1Btn.GetComponent<Button>().onClick.AddListener(OnBackClick);// 给关卡1按钮添加点击事件监听器Level1Btn.GetComponent<Button>().onClick.AddListener(OnLevel1Click);// 给关卡2按钮添加点击事件监听器Level2Btn.GetComponent<Button>().onClick.AddListener(OnLevel2Click);// 给关卡1主页按钮添加点击事件监听器Level1HomeBtn.GetComponent<Button>().onClick.AddListener(OnLevel1HomeBtn);// 给关卡1商店按钮添加点击事件监听器Level1ShopBtn.GetComponent<Button>().onClick.AddListener(OnLevel1ShopBtn);// 给关卡2主页按钮添加点击事件监听器Level2HomeBtn.GetComponent<Button>().onClick.AddListener(OnLevel2HomeBtn);// 给关卡2商店按钮添加点击事件监听器Level2ShopBtn.GetComponent<Button>().onClick.AddListener(OnLevel2ShopBtn);// 初始化红点状态InitRedPointState();}// 返回按钮点击事件处理void OnBackClick(){// 隐藏当前关卡面板，显示菜单面板this.gameObject.SetActive(false);menuPanel.gameObject.SetActive(true);}// 关卡1按钮点击事件处理void OnLevel1Click(){// 切换显示关卡1容器的可见性Level1Container.gameObject.SetActive(!Level1Container.gameObject.activeSelf);}// 关卡2按钮点击事件处理void OnLevel2Click(){// 切换显示关卡2容器的可见性Level2Container.gameObject.SetActive(!Level2Container.gameObject.activeSelf);}// 关卡1主页按钮点击事件处理void OnLevel1HomeBtn(){// 删除关卡1主页红点RedPointSystem.Instance.DeleteNode(RedPointKey.Play_LEVEL1_HOME);}// 关卡1商店按钮点击事件处理void OnLevel1ShopBtn(){// 删除关卡1商店红点RedPointSystem.Instance.DeleteNode(RedPointKey.Play_LEVEL1_SHOP);}// 关卡2主页按钮点击事件处理void OnLevel2HomeBtn(){// 删除关卡2主页红点RedPointSystem.Instance.DeleteNode(RedPointKey.Play_LEVEL2_HOME);}// 关卡2商店按钮点击事件处理void OnLevel2ShopBtn(){// 删除关卡2商店红点RedPointSystem.Instance.DeleteNode(RedPointKey.Play_LEVEL2_SHOP);}void InitRedPointState(){// 初始化关卡1按钮的红点状态RefreshRedPointState(RedPointSystem.Instance.GetRedpointNum(RedPointKey.Play_LEVEL1),Level1Btn.transform.Find("RedPoint"));// 设置关卡1红点回调RedPointSystem.Instance.SetCallBack(RedPointKey.Play_LEVEL1, (int redNum) =>{RefreshRedPointState(redNum, Level1Btn.transform.Find("RedPoint"));});// 初始化关卡2按钮的红点状态RefreshRedPointState(RedPointSystem.Instance.GetRedpointNum(RedPointKey.Play_LEVEL2),Level2Btn.transform.Find("RedPoint"));// 设置关卡2红点回调RedPointSystem.Instance.SetCallBack(RedPointKey.Play_LEVEL2, (int redNum) =>{RefreshRedPointState(redNum, Level2Btn.transform.Find("RedPoint"));});// 初始化关卡1主页按钮的红点状态RefreshRedPointState(RedPointSystem.Instance.GetRedpointNum(RedPointKey.Play_LEVEL1_HOME),Level1HomeBtn.transform.Find("RedPoint"));// 设置关卡1主页红点回调RedPointSystem.Instance.SetCallBack(RedPointKey.Play_LEVEL1_HOME, (int redNum) =>{RefreshRedPointState(redNum, Level1HomeBtn.transform.Find("RedPoint"));});// 初始化关卡1商店按钮的红点状态RefreshRedPointState(RedPointSystem.Instance.GetRedpointNum(RedPointKey.Play_LEVEL1_SHOP),Level1ShopBtn.transform.Find("RedPoint"));// 设置关卡1商店红点回调RedPointSystem.Instance.SetCallBack(RedPointKey.Play_LEVEL1_SHOP, (int redNum) =>{RefreshRedPointState(redNum, Level1ShopBtn.transform.Find("RedPoint"));});// 初始化关卡2主页按钮的红点状态RefreshRedPointState(RedPointSystem.Instance.GetRedpointNum(RedPointKey.Play_LEVEL2_HOME),Level2HomeBtn.transform.Find("RedPoint"));// 设置关卡2主页红点回调RedPointSystem.Instance.SetCallBack(RedPointKey.Play_LEVEL2_HOME, (int redNum) =>{RefreshRedPointState(redNum, Level2HomeBtn.transform.Find("RedPoint"));});// 初始化关卡2商店按钮的红点状态RefreshRedPointState(RedPointSystem.Instance.GetRedpointNum(RedPointKey.Play_LEVEL2_SHOP),Level2ShopBtn.transform.Find("RedPoint"));// 设置关卡2商店红点回调RedPointSystem.Instance.SetCallBack(RedPointKey.Play_LEVEL2_SHOP, (int redNum) =>{RefreshRedPointState(redNum, Level2ShopBtn.transform.Find("RedPoint"));});}void RefreshRedPointState(int redNum, Transform redPoint){Transform redNumText = redPoint.transform.Find("Num");// 如果红点数小于等于0，隐藏红点图标if (redNum <= 0){redPoint.gameObject.SetActive(false);}else{// 否则显示红点图标，并更新红点数显示redPoint.gameObject.SetActive(true);redNumText.GetComponent<Text>().text = redNum.ToString();}}
}
源码
整理好了会放上来
参考
https://www.bilibili.com/video/BV1jx4y1t7Uz/?spm_id_from=333.999.0.0&vd_source=2526a18398a079ddb95468a0c73f126e
https://www.bilibili.com/read/cv35873128/
完结
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好了，我是向宇，https://xiangyu.blog.csdn.net
一位在小公司默默奋斗的开发者，出于兴趣爱好，最近开始自学unity，闲暇之余，边学习边记录分享，站在巨人的肩膀上，通过学习前辈们的经验总是会给我很多帮助和启发！php是工作，unity是生活！如果你遇到任何问题，也欢迎你评论私信找我， 虽然有些问题我也不一定会，但是我会查阅各方资料，争取给出最好的建议，希望可以帮助更多想学编程的人，共勉~
