UE4 给static mesh 动态添加Socket

做个笔记

做项目遇到一个问题，就是需要给静态模型 static mesh 动态添加 Socket,手动必须在编辑器下，打开模型编辑器窗口，如下右下角这里添加

//目前只有4.23 版本的代码中含有Add Socket（）函数，但是这个函数需要传入一个空的Socket类型的索引，翻遍了蓝图也没有相关的节点，只能自己在插件里创建了。

UE4源代码参考位置

D:\Program Files\Epic Games\UE_4.23\Engine\Source\Editor\UnrealEd\Private\Fbx\FbxStaticMeshImport.cpp

2267行到 2297行

UE4 给static mesh 动态添加Socket

下面是实现代码记得将xxx 换成你自己的蓝图类名

xxxBPLibrary.h里

包含头文件

#include "Engine/StaticMeshSocket.h" ////添加插槽

UE4 给static mesh 动态添加Socket

/* 在传入的Static mesh 组件上创建一个空的Socket 类型*/
UFUNCTION(BlueprintCallable, meta = (WorldContext = "WorldContextObject", DisplayName = "Create Socket", Keywords = " Static Mesh Socket"), Category = " Plugin")
static UStaticMeshSocket* CreateSocket(UObject* WorldContextObject, UActorComponent * ActorComp, FName MySocketName, FTransform SocketTransform,FString MyTag);

xxxBPLibrary.cpp里

UE4 给static mesh 动态添加Socket

UStaticMeshSocket* UxxxxxBPLibrary::CreateSocket( UObject * WorldContextObject, UActorComponent * ActorComp, FName MySocketName, FTransform SocketTransform, FString MyTag)
{
   class UStaticMeshSocket* MySocket ;
   UStaticMeshComponent* SourceMeshComp = Cast<UStaticMeshComponent>(ActorComp);
   UStaticMesh* MyStaticMesh = SourceMeshComp->GetStaticMesh();

   // If the socket didn't exist create a new one now
   MySocket = NewObject<UStaticMeshSocket>(MyStaticMesh);
   check(MySocket);

MySocket->SocketName = MySocketName;
MyStaticMesh->AddSocket(MySocket);

MySocket->Tag = MyTag;

       MySocket->RelativeLocation = SocketTransform.GetLocation();
       MySocket->RelativeRotation = SocketTransform.GetRotation().Rotator();
       MySocket->RelativeScale = SocketTransform.GetScale3D();

       return MySocket;

}