UE4C++（2）发生碰撞后打印日志

//  .h文件

#include "CoreMinimal.h"
#include "Engine/StaticMeshActor.h"
#include "TargetStaticMeshActor.generated.h"

/**
 * 
 */
UCLASS()
class LEAMCPP_API ATargetStaticMeshActor : public AStaticMeshActor
{
    GENERATED_BODY()
    
public:
    ATargetStaticMeshActor();
    virtual void NotifyHit(class UPrimitiveComponent* MyComp, AActor* Other, 
        class UPrimitiveComponent* OtherComp, bool bSelfMoved, FVector HitLocation,
        FVector HitNormal, FVector NormalImpulse, const FHitResult& Hit) override;
};

// CPP文件

#include "TargetStaticMeshActor.h"
#include "Engine/Engine.h"

ATargetStaticMeshActor::ATargetStaticMeshActor()
{
    
}
//如果发生碰撞则调用这个函数
void ATargetStaticMeshActor::NotifyHit(class UPrimitiveComponent* MyComp, AActor* Other, class UPrimitiveComponent* OtherComp, bool bSelfMoved, FVector HitLocation, FVector HitNormal, FVector NormalImpulse, const FHitResult& Hit)
{
    Super::NotifyHit(MyComp, Other, OtherComp, bSelfMoved, HitLocation, HitNormal, NormalImpulse, Hit);
    if (Other == nullptr) return;//如果没有碰撞到其他actor，返回；
    if (GEngine)//如果包含日志文件
    {
        GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Yellow, TEXT("NotifyHit"));//打印到屏幕，左上角，保留15s，颜色为黄色，文字。。。
    }


}