ue4抛射物击中物体的销毁

物体要产生碰撞的要求:

1.两个物体必须产生overlap

2.勾选产生重叠事件

 

子弹Projectile

 

子弹对象类型是Projectile

 

 

FloatingAcotor

 

 

红色代码为销毁代码

 

 floatactor.h中

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "floatActor.generated.h"

UCLASS()
class NEWFPS_API AfloatActor : public AActor
{
    GENERATED_BODY()
    
public:    
    // Sets default values for this actor's properties
    AfloatActor();
    UPROPERTY(visibleAnywhere,category="Static")
        UStaticMeshComponent *FloatingMesh;
    UFUNCTION()
        void OnCollision(class UPrimitiveComponent* HitComp, class AActor* OtherActor, class UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult);
protected:
    // Called when the game starts or when spawned
    virtual void BeginPlay() override;

public:    
    // Called every frame
    virtual void Tick(float DeltaTime) override;
    
};

 floatactor.cpp中

// Fill out your copyright notice in the Description page of Project Settings.


#include "floatActor.h"
#include "NewFPSProjectile.h"
// Sets default values
AfloatActor::AfloatActor()
{
     // 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;
    FloatingMesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("FloatingMesh"));
    
    FloatingMesh->SetupAttachment(RootComponent);
    static ConstructorHelpers::FObjectFinder<UStaticMesh> CubeVisualAsset(TEXT("StaticMesh'/Game/StarterContent/Shapes/Shape_Cube.Shape_Cube'"));
    if (CubeVisualAsset.Succeeded())   //如果找到了
    {
        FloatingMesh->SetStaticMesh(CubeVisualAsset.Object);
        FloatingMesh->SetRelativeLocation(FVector(0.0f, 0.0f, 0.0f));
    }
}

// Called when the game starts or when spawned
void AfloatActor::BeginPlay()
{
    Super::BeginPlay();

    FloatingMesh->OnComponentBeginOverlap.AddDynamic(this, &AfloatActor::OnCollision);
}

// Called every frame
void AfloatActor::Tick(float DeltaTime)
{
    Super::Tick(DeltaTime);
    FVector NewLocation = GetActorLocation();
    FRotator NewRotation = GetActorRotation();
    float RunningTime = GetGameTimeSinceCreation();
    float DeltaHeight = (FMath::Sin(RunningTime + DeltaTime) - FMath::Sin(RunningTime));
    NewLocation.Z += DeltaHeight * 20.0f;
    float DeltaRotation = DeltaTime * 20.0f;  //每秒旋转20度
    NewRotation.Yaw += DeltaRotation;  //Yaw:摇头  pitch:点头  roll旋转
    SetActorLocationAndRotation(NewLocation, NewRotation);
}
//OtherActor谁对我发生了碰撞
void AfloatActor::OnCollision(class UPrimitiveComponent* HitComp, class AActor* OtherActor, class UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult)
{
    //将OtherActor转换成ANewFPSProjectile类型代表发生了碰撞
    //和FloatingActor发生碰撞的物体能够转换成子弹类型的话代表FloatingActor和子弹进行碰撞了
    ANewFPSProjectile* Projectile = Cast<ANewFPSProjectile>(OtherActor);
    if (Projectile == nullptr) //代表OtherActor物体没有被转换成子弹类型所以不需要管
    {
        return;
    }
    else
    {
        this->Destroy();
    }
}