Unity 电路解密小游戏实现思路

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Unity 电路解密小游戏实现思路

实现效果

效果展示视频
项目Github

功能需求

点击电线组件可以旋转，连接电池首尾游戏结束(该Demo还要连通特殊组件)，连通后线路会亮起来(该Demo只要和正极相连的线路就会亮，Demo的亮是图片颜色变化和Unity光照，这里就写图片的颜色变化，思路是差不多的)。不需要记录正确路线的所有电线组件的正确方向，将电路组件做成prefab后，可以由策划自由放置，判断是否连接正确由组件之间的自行判断。

实现思路

为每个电线组件添加接口Trigger，点击组件后组件进行旋转，将接口触发到的线路引用添加进来，将离开的线路引用删除，然后发送事件，重置所有让电池开始从正极的电线开始递归调用显示。

实现过程

创建电线组件

创建一个空物体命名为Line_A并添加Tag为Line，在其下创建俩个空物体，一个命名为Images用来存放图片，一个命名为CheckPoints用来存放检测点并为其子物体添加Tag为CheckPoint。

给Line_添加BoxCollider2D，调整好大小覆盖整个线路，这个Collider是用来检测鼠标的点击旋转的。再给Points下的物体添加BoxCollider2D，并勾选is Trigger,再添加RigidBody2D，并设计BodyType为Kinematic，这个是用来判断线路之间的连接情况的。

给Line_A添加Line.cs脚本，并把图片拖拽上去

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.Rendering.Universal;public class Line : MonoBehaviour
{public bool isPower;//用来判断该线路组件是否处于通电状态public List<GameObject> nextLines = new List<GameObject>();//连接线路的引用public SpriteRenderer spriteRenderer;//图片public void Rotate(){ansform.Rotate(0, 0, -90);}public void AddNextLine(GameObject line){nextLines.Add(line);}public void DeleteNextLine(GameObject line){nextLines.Remove(line);}/// <summary>/// 通电递归/// </summary>public void Power(){Debug.ansform.name + "通电了");isPower = true;// 通电效果SetLuminance(true);//给连接的线路通电foreach (GameObject nextLine in nextLines){var line = nextLine.GetComponent<Line>();if (!line.isPower){line.Power();}}}/// <summary>/// 重置状态/// </summary>public void ResetStatic(){isPower = false;SetLuminance(false);}/// <summary>/// 通电后颜色变化/// </summary>/// <param name="p">true变红/false变会原来的颜色</param>public void SetLuminance(bool p){if (p){lor = new Color32(240, 124, 130, 255);}else{lor = new Color(1f, 1f, 1f, 1f);}}
}

给CheckPoint添加CheckPoint.cs,并拖拽父对象的引用

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class CheckPoint : MonoBehaviour
{public Line line;private void OnTriggerEnter2D(Collider2D other){if (other.CompareTag("CheckPoint")){//Debug.Log("连接到线路");line.ansform.parent.parent.gameObject);}}private void OnTriggerExit2D(Collider2D other){if (other.CompareTag("CheckPoint")){//Debug.Log("断开线路");line.ansform.parent.parent.gameObject);}}
}

同理，我们可以再设计更多线路预制体

创建电池组件

同理电线的制作

为Battery添加Battery.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class Battery : MonoBehaviour
{public GameObject outLine;//正极连接的线public GameObject inLine;//负极连接的线/// <summary>/// 开始通电/// </summary>public void StartPower(){if (outLine != null){//Debug.Log("电池开始通电");outLine.GetComponent<Line>().Power();}}
}

把Points下的对象的CheckPoint.cs换成InPole.cs和OutPole.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;/// <summary>
/// 负极
/// </summary>
public class InPole : MonoBehaviour
{public Battery battery;private void OnTriggerEnter2D(Collider2D other){if (other.CompareTag("CheckPoint")){//Debug.Log("连接到线路");battery.inLine = ansform.parent.parent.gameObject;}}private void OnTriggerExit2D(Collider2D other){if (other.CompareTag("CheckPoint")){//Debug.Log("断开线路");battery.inLine = null;}}
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;/// <summary>
/// 正极
/// </summary>
public class OutPole : MonoBehaviour
{public Battery battery;private void OnTriggerEnter2D(Collider2D other){if (other.CompareTag("CheckPoint")){//Debug.Log("连接到线路");battery.outLine = ansform.parent.parent.gameObject;}}private void OnTriggerExit2D(Collider2D other){if (other.CompareTag("CheckPoint")){//Debug.Log("断开线路");battery.outLine = null;}}
}

鼠标点击管理类

在场景中创建空物体命名为Cursor Manager，添加CursorManager.cs单例类，鼠标点击后检测周围的碰撞体，如果Tag是Line，则调用它的旋转方法，
然后发送让关卡管理类指挥通电。

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;/// <summary>
/// 管理鼠标点击
/// </summary>
public class CursorManager : Singleton<CursorManager>
{private Vector3 mouseWorldPos =>Camera.main.ScreenToWorldPoint(new usePosition.x, usePosition.y, 0));private void Update(){if (Input.GetMouseButtonDown(0)){//检测鼠标互动情况ClickAction(ObjectAtMousePosition().gameObject);}}private void ClickAction(GameObject clickObject){if (clickObject != null){switch (clickObject.tag){case "Line":var line = clickObject.GetComponent<Line>();line?.Rotate();LevelManager.Instance.StartPowerCommand();break;}}}/// <summary>/// 检测鼠标点击范围的碰撞体/// </summary>/// <returns></returns>private Collider2D ObjectAtMousePosition(){return Physics2D.OverlapPoint(mouseWorldPos);}
}

单例类

using System;
using UnityEngine;public class Singleton<T> : MonoBehaviour where T : Singleton<T>
{private static T instance;public static T Instance{get { return instance; }}protected void Awake(){if (instance != null)Destroy(gameObject);else{instance = (T) this;}}public static bool IsInitialized{get { return instance != null; }}protected virtual void OnDestroy(){if (instance == this){instance = null;}}
}

游戏管理类

在场景中创建空物体命名为Level Manager，添加LevelManager.cs单例类

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class LevelManager : Singleton<LevelManager>
{public Battery battery;[Header("场景中存在的线")]public GameObject[] lines;private void Start(){lines = GameObject.FindGameObjectsWithTag("Line");}public void StartPowerCommand(){//重置所有线的状态for (int i = 0; i < lines.Length; i++){lines[i].GetComponent<Line>().ResetStatic();}//这里需要延迟调用一下，因为通过OnTrigger添加对象会有延迟Invoke("StartPower", 0.5f);//这里需要延迟调运一下，因为电路的递归需要点时间Invoke("isGameOver", 0.5f);}private void StartPower(){battery.StartPower();}private void isGameOver(){GameObject gameObject = battery.inLine;if (gameObject != null){if (gameObject.GetComponent<Line>().isPower） GameOver();}}private void GameOver(){Debug.Log("GameOver");}
}