ue4插件开发

亦凉 2022-07-14 03:19 226阅读 0赞

1、直接从Editor中生成一个空的插件模板  
![这里写图片描述][20160802211325647]

然后最右下角  
![这里写图片描述][20160802211335226]

![这里写图片描述][20160802211344007]

--------------------

## 2、关掉vs，右键生成一下工程文件，把Plugins扫进去 ##

![这里写图片描述][20160802211404898]

打开解决方案开始编写插件  
瞧，插件加进来了  
![这里写图片描述][20160802211423648]

--------------------

## 3、编写插件 ##

### 1- 首先把插件的配置文TestPlugin.uplugin件改一下(被这个坑了两天) ###

这个LoadingPhase的值默认为Default，必须修改为PreDefault，不然重启Editor会报关联不上插件源码的错误，切记！  
![这里写图片描述][20160802211501446]

### 2- 修改编译模块配置TestPlugin.Build.cs文件，c\#文件 ###

![这里写图片描述][20160802211516118]

详细代码，里面有注释

using UnrealBuildTool;
    using System.IO; //路径获取需要用到IO
    
    public class TestPlugin : ModuleRules
    {
        private string ModulePath //当前TestPlugin.Build.cs文件所在的路径
        {
            get { return Path.GetDirectoryName(RulesCompiler.GetModuleFilename(this.GetType().Name)); }
        }
    
        private string ThirdPartyPath //这个插件引用的第三方库的目录
        {
            get { return Path.GetFullPath(Path.Combine(ModulePath, "../../ThirdParty/")); }
        }
    
        private string MyTestLibPath //第三方库MyTestLib的目录
        {
            get { return Path.GetFullPath(Path.Combine(ThirdPartyPath, "MyTestLib")); }
        }
    
        public TestPlugin(TargetInfo Target)
        {
            PublicIncludePaths.AddRange( //公有文件搜索路径
                new string[] {
                    "TestPlugin/Public"
                    // ... add public include paths required here ...
                }
                );
    
            PrivateIncludePaths.AddRange(
                new string[] {
                    "TestPlugin/Private" //私有文件搜索路径
                    // ... add other private include paths required here ...
                }
                );
    
            PublicDependencyModuleNames.AddRange(
                new string[]
                {
                    "Core"
                    // ... add other public dependencies that you statically link with here ...
                }
                );
    
            PrivateDependencyModuleNames.AddRange(
                new string[]
                {
                    "CoreUObject",
                    "Engine",
                    "Slate",
                    "SlateCore",
                    // ... add private dependencies that you statically link with here ...  
                }
                );
    
            DynamicallyLoadedModuleNames.AddRange(
                new string[]
                {
                    // ... add any modules that your module loads dynamically here ...
                }
                );
    
            LoadThirdPartyLib(Target); //加载第三方库
        }
    
        public bool LoadThirdPartyLib(TargetInfo Target)
        {
            bool isLibrarySupported = false;
            if ((Target.Platform == UnrealTargetPlatform.Win64) || (Target.Platform == UnrealTargetPlatform.Win32))//平台判断
            {
                isLibrarySupported = true;
                System.Console.WriteLine("----- isLibrarySupported true");
                string PlatformSubPath = (Target.Platform == UnrealTargetPlatform.Win64) ? "Win64" : "Win32";
                string LibrariesPath = Path.Combine(MyTestLibPath, "Lib");
                PublicAdditionalLibraries.Add(Path.Combine(LibrariesPath, PlatformSubPath, "TestLib.lib"));//加载第三方静态库.lib
            }
    
            if (isLibrarySupported) //成功加载库的情况下，包含第三方库的头文件
            {
                // Include path
                System.Console.WriteLine("----- PublicIncludePaths.Add true"); 
                PublicIncludePaths.Add(Path.Combine(MyTestLibPath, "Include"));
            }
            return isLibrarySupported;
        }
    }

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### 3- 写个自定义的char – TestChar，继承自Character ###

先看下文件结构，需要蓝图可见的必须丢到Public下  
![这里写图片描述][20160802211701731]

#### 1、先修改预编译头文件TestPluginPrivatePCH.h，必须包含CoreUObject，不然编译不过，切记！ ####

#include "TestPlugin.h"
    
    // UObject core
    #include "CoreUObject.h" //默认是不含这个的
    
    // Actor based classes
    #include "GameFramework/Character.h" //包插件中所有用的的引擎类都丢到这里来

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#### 2、头文件，正常编写自定义的类一样 ####

#pragma once
    
    #include "GameFramework/Character.h"
    #include "TestChar.generated.h"
    
    UCLASS()
    class ATestChar : public ACharacter
    {
        GENERATED_BODY()
    
    public:
        // Sets default values for this character\'s properties
        ATestChar();
    
        UPROPERTY(EditAnywhere, Category = "Test Char")
            int32           mAge;
        UPROPERTY(EditAnywhere, Category = "Test Char")
            FString         mName;
    };

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#### 3、 cpp文件，包含的是预编译文件和类的头文件 ####

#include "TestPluginPrivatePCH.h"
    #include "TestChar.h"
    #include "TestLib.h" //引入的第三方库的头文件
    
    ATestChar::ATestChar() : Super()
    {
        mAge = myPrint("hello world", 123); //第三方库中的方法
        mName = "yangx";
    }

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//第三方库打成了一个静态库TestLib.lib  
TestLib.h

#ifndef __TEST_LIB_H__
    #define __TEST_LIB_H__
    #include <string>
    #include <iostream>
    
    int myPrint(std::string _name, int _age);
    
    #endif

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TestLib.cpp

#include "TestLib.h"
    
    int myPrint(std::string _name, int _age)
    {
        return _age + 1000;
    }

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--------------------

## 4、编译运行，在Editor中create一个Blueprint继承自这个TestChar类 ##

![这里写图片描述][20160802212132894]

![这里写图片描述][20160802212141557]

--------------------

## 5、拖到场景运行游戏 ##

![这里写图片描述][20160802212203589]

--------------------

## 6、插件的git地址 ##

[https://github.com/yangxuan0261/SlatePlugin.git][https_github.com_yangxuan0261_SlatePlugin.git]

本文转自：http://blog.csdn.net/yangxuan0261/article/details/52098104

[20160802211325647]: /images/20220714/72aa33f888ae4f57a53e11e55a06d27e.png
[20160802211335226]: /images/20220714/826419b65ade4fe88f22a5fb9cac1b1f.png
[20160802211344007]: /images/20220714/01e79efc9f0c4ea0920538e524e8d371.png
[20160802211404898]: /images/20220714/07f9eaecebf644218bae14ea217d8a48.png
[20160802211423648]: /images/20220714/56bc38c5fc9045acaf4cfef4e45e3c05.png
[20160802211501446]: /images/20220714/d3ef6e419ffc483f96e36460bfeeaa32.png
[20160802211516118]: /images/20220714/5de8b1e893aa4baaabea832ae24f1d41.png
[20160802211701731]: /images/20220714/c9256f2328724977bb0f7e2d63abd6de.png
[20160802212132894]: /images/20220714/2241d85caaeb4ece8a2135082b83e022.png
[20160802212141557]: /images/20220714/aa49921cfa1a4fa8a0d3efd357b587c4.png
[20160802212203589]: /images/20220714/4cd10d62f52a44e9bdbb26f9bf70133d.png
[https_github.com_yangxuan0261_SlatePlugin.git]: https://github.com/yangxuan0261/SlatePlugin.git