Unity3d开发——保卫萝卜学习笔记一地图编辑器开发

   一直在学习，几乎边学边忘，再也不想打王者农药了，现在打卡学习持续写博客，现在在开发学习保卫萝卜，这篇文章关于地图编辑器的开发，在项目中不能是无限个场景，用读取xml文件的方法可以说是能实现无限关卡，同时节省很多开发时间缩短周期

一.目录结构

二.创建数据类(放置在Data目录)

首先看一下XML文件内容
根据xml文件节点创建一些数据类，首先创建Point.cs脚本,放置在Data目录中

using UnityEngine;
using System.Collections;//格子坐标
public class Point
{public int X;public int Y;public Point(int x, int y){this.X = x;this.Y = y;}
}

3.创建Tile.cs脚本

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;//格子信息
public class Tile
{public int X;public int Y;public bool CanHold; //是否可以放置塔public object Data; //格子所保存的数据public Tile(int x, int y){this.X = x;this.Y = y;}public override string ToString(){return string.Format("[X:{0},Y:{1},CanHold:{2}]",this.X,this.Y,this.CanHold);}
}

4.创建Round.cs脚本

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;public class Round
{public int Monster; //怪物类型IDpublic int Count;   //怪物数量public Round(int monster, int count){this.Monster = monster;this.Count = count;}
}

5.根据xml文件信息创建关卡类Level.cs

using UnityEngine;
using System.Collections;
using System.Collections.Generic;public class Level
{//名字public string Name;//背景public string Background;//路径public string Road;//金币public int InitScore;//炮塔可放置的位置public List<Point> Holder = new List<Point>();//怪物行走的路径public List<Point> Path = new List<Point>();//出怪回合信息public List<Round> Rounds = new List<Round>();
}

三.创建读写XML工具类

using UnityEngine;
using System.IO;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Xml;public class Tools
{//读取关卡列表public static List<FileInfo> GetLevelFiles(){string[] files = Directory.GetFiles(Consts.LevelDir, "*.xml");List<FileInfo> list = new List<FileInfo>();for (int i = 0; i < files.Length; i++){FileInfo file = new FileInfo(files[i]);list.Add(file);}return list;}//填充Level类数据public static void FillLevel(string fileName, ref Level level){FileInfo file = new FileInfo(fileName);StreamReader sr = new StreamReader(file.OpenRead(), Encoding.UTF8);XmlDocument doc = new XmlDocument();doc.Load(sr);level.Name = doc.SelectSingleNode("/Level/Name").InnerText;level.Background = doc.SelectSingleNode("/Level/Background").InnerText;level.Road = doc.SelectSingleNode("/Level/Road").InnerText;level.InitScore = int.Parse(doc.SelectSingleNode("/Level/InitScore").InnerText);XmlNodeList nodes;nodes = doc.SelectNodes("/Level/Holder/Point");for (int i = 0; i < nodes.Count; i++){XmlNode node = nodes[i];Point p = new Point(int.Parse(node.Attributes["X"].Value),int.Parse(node.Attributes["Y"].Value));level.Holder.Add(p);}nodes = doc.SelectNodes("/Level/Path/Point");for (int i = 0; i < nodes.Count; i++){XmlNode node = nodes[i];Point p = new Point(int.Parse(node.Attributes["X"].Value),int.Parse(node.Attributes["Y"].Value));level.Path.Add(p);}nodes = doc.SelectNodes("/Level/Rounds/Round");for (int i = 0; i < nodes.Count; i++){XmlNode node = nodes[i];Round r = new Round(int.Parse(node.Attributes["Monster"].Value),int.Parse(node.Attributes["Count"].Value));level.Rounds.Add(r);}sr.Close();sr.Dispose();}//保存关卡public static void SaveLevel(string fileName, Level level){StringBuilder sb = new StringBuilder();sb.AppendLine("<?xml version=\"1.0\" encoding=\"utf-8\"?>");sb.AppendLine("<Level>");sb.AppendLine(string.Format("<Name>{0}</Name>", level.Name));sb.AppendLine(string.Format("<Background>{0}</Background>", level.Background));sb.AppendLine(string.Format("<Road>{0}</Road>", level.Road));sb.AppendLine(string.Format("<InitScore>{0}</InitScore>", level.InitScore));sb.AppendLine("<Holder>");for (int i = 0; i < level.Holder.Count; i++){sb.AppendLine(string.Format("<Point X=\"{0}\" Y=\"{1}\"/>", level.Holder[i].X, level.Holder[i].Y));}sb.AppendLine("</Holder>");sb.AppendLine("<Path>");for (int i = 0; i < level.Path.Count; i++){sb.AppendLine(string.Format("<Point X=\"{0}\" Y=\"{1}\"/>", level.Path[i].X, level.Path[i].Y));}sb.AppendLine("</Path>");sb.AppendLine("<Rounds>");for (int i = 0; i < level.Rounds.Count; i++){sb.AppendLine(string.Format("<Round Monster=\"{0}\" Count=\"{1}\"/>", level.Rounds[i].Monster, level.Rounds[i].Count));}sb.AppendLine("</Rounds>");sb.AppendLine("</Level>");string content = sb.ToString();StreamWriter sw = new StreamWriter(fileName, false, Encoding.UTF8);sw.Write(content);sw.Flush();sw.Dispose();}//加载图片public static IEnumerator LoadImage(string url, SpriteRenderer render){WWW www = new WWW(url);while (!www.isDone)yield return www;Texture2D texture = www.texture;Sprite sp = Sprite.Create(texture,new Rect(0, 0, texture.width, texture.height),new Vector2(0.5f, 0.5f));render.sprite = sp;}
}

三.创建编辑器Editor类

1.创建常量类Consts.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using UnityEngine;public static class Consts
{//目录public static readonly string LevelDir = Application.dataPath + @"\Game\Res\Levels";public static readonly string MapDir = Application.dataPath + @"\Game\Res\Maps";
}

2.创建Map.cs,此脚本挂在层级试图hierarchy中的Map上

先定义一些字段，属性，和方法

using UnityEngine;
using System;
using System.Collections;
using System.Collections.Generic;public class Map : MonoBehaviour
{#region 常量public const int RowCount = 8;   //行数public const int ColumnCount = 12; //列数#endregion#region 字段float MapWidth;//地图宽float MapHeight;//地图高float TileWidth;//格子宽float TileHeight;//格子高List<Tile> m_grid = new List<Tile>(); //格子集合List<Tile> m_road = new List<Tile>(); //路径集合Level m_level; //关卡数据public bool DrawGizmos = true; //是否绘制网格#endregion#region 属性public Level Level{get { return m_level; }}public string BackgroundImage{set{SpriteRenderer render = transform.Find("Background").GetComponent<SpriteRenderer>();StartCoroutine(Tools.LoadImage(value, render));}}public string RoadImage{set{SpriteRenderer render = transform.Find("Road").GetComponent<SpriteRenderer>();StartCoroutine(Tools.LoadImage(value, render));}}public List<Tile> Grid{get { return m_grid; }}public List<Tile> Road{get { return m_road; }}//怪物的寻路路径public Vector3[] Path{get{List<Vector3> m_path = new List<Vector3>();for (int i = 0; i < m_road.Count; i++){Tile t = m_road[i];Vector3 point = GetPosition(t);m_path.Add(point);}return m_path.ToArray();}}#endregion#region 方法public void LoadLevel(Level level){//清除当前状态Clear();//保存this.m_level = level;//加载图片this.BackgroundImage = "file://" + Consts.MapDir + "/" + level.Background;this.RoadImage = "file://" + Consts.MapDir + "/" + level.Road;//寻路点for (int i = 0; i < level.Path.Count; i++){Point p = level.Path[i];Tile t = GetTile(p.X, p.Y);m_road.Add(t);}//炮塔点for (int i = 0; i < level.Holder.Count; i++){Point p = level.Holder[i];Tile t = GetTile(p.X, p.Y);t.CanHold = true;}}//清除塔位信息public void ClearHolder(){foreach (Tile t in m_grid){if(t.CanHold)t.CanHold = false;}}//清除寻路格子集合public void ClearRoad(){m_road.Clear();}//清除所有信息public void Clear(){m_level = null;ClearHolder();ClearRoad();}#endregion#region Unity回调//只在运行期起作用void Awake(){//计算地图和格子大小CalculateSize();//创建所有的格子for (int i = 0; i < RowCount; i++)for (int j = 0; j < ColumnCount; j++)m_grid.Add(new Tile(j, i));}//只在编辑器里起作用void OnDrawGizmos(){if (!DrawGizmos)return;//计算地图和格子大小CalculateSize();//绘制格子Gizmos.color = Color.green;//绘制行for (int row = 0; row <= RowCount; row++){Vector2 from = new Vector2(-MapWidth / 2, -MapHeight / 2 + row * TileHeight);Vector2 to = new Vector2(-MapWidth / 2 + MapWidth, -MapHeight / 2 + row * TileHeight);Gizmos.DrawLine(from, to);}//绘制列for (int col = 0; col <= ColumnCount; col++){Vector2 from = new Vector2(-MapWidth / 2 + col * TileWidth, MapHeight / 2);Vector2 to = new Vector2(-MapWidth / 2 + col * TileWidth, -MapHeight / 2);Gizmos.DrawLine(from, to);}foreach (Tile t in m_grid){if (t.CanHold){Vector3 pos = GetPosition(t);Gizmos.DrawIcon(pos, "holder.png", true);}}Gizmos.color = Color.red;for (int i = 0; i < m_road.Count; i++){//起点if (i == 0){Gizmos.DrawIcon(GetPosition(m_road[i]), "start.png", true);}//终点if (m_road.Count > 1 && i == m_road.Count - 1){Gizmos.DrawIcon(GetPosition(m_road[i]), "end.png", true);}//红色的连线if (m_road.Count > 1 && i != 0){Vector3 from = GetPosition(m_road[i - 1]);Vector3 to = GetPosition(m_road[i]);Gizmos.DrawLine(from, to);}}}#endregion#region 帮助方法//计算地图大小，格子大小void CalculateSize(){Vector3 leftDown = new Vector3(0, 0);Vector3 rightUp = new Vector3(1, 1);Vector3 p1 = Camera.main.ViewportToWorldPoint(leftDown);Vector3 p2 = Camera.main.ViewportToWorldPoint(rightUp);MapWidth = (p2.x - p1.x);MapHeight = (p2.y - p1.y);TileWidth = MapWidth / ColumnCount;TileHeight = MapHeight / RowCount;}//获取格子中心点所在的世界坐标Vector3 GetPosition(Tile t){return new Vector3(-MapWidth / 2 + (t.X + 0.5f) * TileWidth,-MapHeight / 2 + (t.Y + 0.5f) * TileHeight,0);}//根据格子索引号获得格子Tile GetTile(int tileX, int tileY){int index = tileX + tileY * ColumnCount;if (index < 0 || index >= m_grid.Count)return null;return m_grid[index];}//获取鼠标下面的格子Tile GetTileUnderMouse(){Vector2 wordPos = GetWorldPosition();int col = (int)((wordPos.x + MapWidth / 2) / TileWidth);int row = (int)((wordPos.y + MapHeight / 2) / TileHeight);return GetTile(col, row);}//获取鼠标所在位置的世界坐标Vector3 GetWorldPosition(){Vector3 viewPos = Camera.main.ScreenToViewportPoint(Input.mousePosition);Vector3 worldPos = Camera.main.ViewportToWorldPoint(viewPos);return worldPos;}#endregion
}

3.在Editor文件夹下创建编辑器类MapEditor.cs

using UnityEngine;
using UnityEditor;
using System.IO;
using System.Collections;
using System.Collections.Generic;[CustomEditor(typeof(Map))]
public class MapEditor : Editor
{[HideInInspector]public Map Map = null;//关卡列表List<FileInfo> m_files = new List<FileInfo>();//当前编辑的关卡索引号int m_selectIndex = -1;public override void OnInspectorGUI(){base.OnInspectorGUI();if(Application.isPlaying){//关联的Mono脚本组件Map = target as Map;EditorGUILayout.BeginHorizontal();int currentIndex = EditorGUILayout.Popup(m_selectIndex, GetNames(m_files));if (currentIndex != m_selectIndex){m_selectIndex = currentIndex;//加载关卡LoadLevel();}if (GUILayout.Button("读取列表")){//读取关卡列表LoadLevelFiles();}EditorGUILayout.EndHorizontal();EditorGUILayout.BeginHorizontal();if (GUILayout.Button("清除塔点")){Map.ClearHolder();}if (GUILayout.Button("清除路径")){Map.ClearRoad();}EditorGUILayout.EndHorizontal();if (GUILayout.Button("保存数据")){//保存关卡SaveLevel();}}if (GUI.changed)EditorUtility.SetDirty(target);}void LoadLevelFiles(){//清除状态Clear();//加载列表m_files = Tools.GetLevelFiles();//默认加载第一个关卡if (m_files.Count > 0){m_selectIndex = 0;LoadLevel();}}void LoadLevel(){FileInfo file = m_files[m_selectIndex];Level level = new Level();Tools.FillLevel(file.FullName, ref level);Map.LoadLevel(level);}void SaveLevel(){//获取当前加载的关卡Level level = Map.Level;//临时索引点List<Point> list = null;//收集放塔点list = new List<Point>();for (int i = 0; i < Map.Grid.Count; i++){Tile t = Map.Grid[i];if (t.CanHold){Point p = new Point(t.X, t.Y);list.Add(p);}}level.Holder = list;//收集寻路点list = new List<Point>();for (int i = 0; i < Map.Road.Count; i++){Tile t = Map.Road[i];Point p = new Point(t.X, t.Y);list.Add(p);}level.Path = list;//路径string fileName = m_files[m_selectIndex].FullName;//保存关卡Tools.SaveLevel(fileName, level);//弹框提示EditorUtility.DisplayDialog("保存关卡数据", "保存成功", "确定");}void Clear(){m_files.Clear();m_selectIndex = -1;}string[] GetNames(List<FileInfo> files){List<string> names = new List<string>();foreach (FileInfo file in files){names.Add(file.Name);}return names.ToArray();}
}

4.自此完成了读取XML文件，显示地图和放塔点，接着要做的是完成在编辑器模式下鼠标左键添加或清除放塔点，右键添加或清除路径点

在map.cs脚本中添加一个事件类TileClickEventArgs，继承EventArgs

//鼠标点击参数类
public class TileClickEventArgs : EventArgs
{public int MouseButton; //0左键，1右键public Tile Tile;public TileClickEventArgs(int mouseButton, Tile tile){this.MouseButton = mouseButton;this.Tile = tile;}
}

定义事件

    #region 事件public event EventHandler<TileClickEventArgs> OnTileClick;#endregion

接着在map类中添加事件回调代码

    #region 事件回调void Map_OnTileClick(object sender, TileClickEventArgs e){if (Level == null)return;//处理放塔操作if (e.MouseButton == 0 && !m_road.Contains(e.Tile)){e.Tile.CanHold = !e.Tile.CanHold;}//处理寻路点操作if (e.MouseButton == 1 && !e.Tile.CanHold){if (m_road.Contains(e.Tile))m_road.Remove(e.Tile);elsem_road.Add(e.Tile);}else { }}#endregion

在Awake（）方法中监听鼠标点击事件

       监听鼠标点击事件OnTileClick += Map_OnTileClick;

然后在Update中检测触发

void Update(){//鼠标左键检测if (Input.GetMouseButtonDown(0)){Tile t = GetTileUnderMouse();if (t != null){//触发鼠标左键点击事件TileClickEventArgs e = new TileClickEventArgs(0, t);if (OnTileClick != null){OnTileClick(this, e);}}}//鼠标右键检测if (Input.GetMouseButtonDown(1)){Tile t = GetTileUnderMouse();if (t != null){//触发鼠标右键点击事件TileClickEventArgs e = new TileClickEventArgs(1, t);if (OnTileClick != null){OnTileClick(this, e);}}}}

地图编辑器到这里就完成了。第一次写博客完全不知道怎么写，只知道贴代码，就当是自己的学习笔记鼓励自己继续学下去，总比沉迷王者农药要好得多，农药伤身不益智。mmp—-

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