unreal-c++教程-第九章:c++发送消息给蓝图

ChuanXin · 发表于 2023-4-11 14:44

c++发送消息给蓝图

1. 背景介绍

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2. c++代码

.h文件

#pragmaonce#include"CoreMinimal.h"#include"GameFramework/Actor.h"#include"Client.generated.h"UCLASS()
class LUAX_API AClient : public AActor
{GENERATED_BODY()
public:// Sets default values for this actor's propertiesAClient();
protected:// Called when the game starts or when spawned
virtual voidBeginPlay() override;
public:// Called every frame
virtual voidTick(float DeltaTime) override;UFUNCTION(BlueprintNativeEvent, Category ="Switch Functions")voidOnReceiveMsg(float val);voidOnReceiveMsg_Implementation(float val);};

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.cpp文件

// Fill out your copyright notice in the Description page of Project Settings.#include"Client.h"//#include "UnLua/"//#include "UnLua/"// Sets default values
AClient::AClient(){// Set this actor to call Tick() every frame. You can turn this off to improve performance if you don't need it.
PrimaryActorTick.bCanEverTick = true;}// Called when the game starts or when spawnedvoid AClient::BeginPlay(){
Super::BeginPlay();}// Called every framevoid AClient::Tick(float DeltaTime){
Super::Tick(DeltaTime);OnReceiveMsg(DeltaTime);}void AClient::OnReceiveMsg_Implementation(float val){}

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3.创建蓝图

我们将该Test的Acator拖拽到UWorld中时，我们会发现，我们成功的接收到来自c++的消息

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