重写Overlap事件

.h: 

UFUNCTION()
        virtual void StartTouchEvent(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor,
            UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep,
            const FHitResult & SweepResult);

    UFUNCTION()
        virtual void EndTouchEvent(UPrimitiveComponent* OverlappedComponent,
            AActor* OtherActor, UPrimitiveComponent* OtherComp,
            int32 OtherBodyIndex);

.cpp: 

void UTouchCableComponent::BeginPlay()
{
    //绑定开始触碰事件,Target是要绑定的物体
    FScriptDelegate CollisionDelegate;
    CollisionDelegate.BindUFunction(this, "StartTouchEvent");
    Target->OnComponentBeginOverlap.Add(CollisionDelegate);
    //绑定结束触碰事件
    FScriptDelegate EndTouchDelegate;
    EndTouchDelegate.BindUFunction(this, "EndTouchEvent");
    Target->OnComponentEndOverlap.Add(EndTouchDelegate);
}