踩到那块冒烟的板子会把人物发射出去
惯例头文件声明
class UStaticMeshComponent;
class UBoxComponent;
class UParticleSystem;
UCLASS()
class MYPROJECT2_API ALaunchActor : public AActor
{
?? ?GENERATED_BODY()
?? ?
public:?? ?
?? ?// Sets default values for this actor's properties
?? ?ALaunchActor();
protected:
?? ?// Called when the game starts or when spawned
?? ?virtual void BeginPlay() override;
public:?? ?
?? ?// Called every frame
?? ?virtual void Tick(float DeltaTime) override;
?? ?UPROPERTY(EditDefaultsOnly)
?? ?UStaticMeshComponent*statimesh;
?? ?UPROPERTY(EditDefaultsOnly)
?? ?UBoxComponent*boxcomponent;
?? ?UPROPERTY(EditDefaultsOnly,Category="partice")
?? ?UParticleSystem* particle;
?? ?
?? ?//发射强度
?? ?UPROPERTY(EditAnywhere)
?? ?float launchstrength;
?? ?//发射角度
?? ?UPROPERTY(EditAnywhere)
?? ?float launchroation;
?? ?UFUNCTION()
?? ?void onhit(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult & SweepResult);
};
源文件实现
在此之前需要在构造函数里对组件进行初始化，很明显，这个功能需要一个静态网格体组件，一个触发盒子组件，和一个粒子组件。
ALaunchActor::ALaunchActor()
{
??? ?// 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;
?? ?boxcomponent = CreateDefaultSubobject<UBoxComponent>(TEXT("boxcomponent"));
?? ?boxcomponent->SetBoxExtent(FVector(75.0f, 75.0f, 75.0f));
?? ?RootComponent = boxcomponent;
?? ?statimesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("staticmesh"));
?? ?statimesh->SetupAttachment(RootComponent);
?? ?boxcomponent->OnComponentBeginOverlap.AddDynamic(this, &ALaunchActor::onhit);
?? ?launchroation = 35.0f;
? ?//发射强度
?? ?launchstrength = 1500;
}
之后写具体的发射函数
void ALaunchActor::onhit(UPrimitiveComponent * OverlappedComponent, AActor * OtherActor, UPrimitiveComponent * OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult & SweepResult)
{
?? ?//发射方向
?? ?FRotator launchdriection = GetActorRotation();
?? ?launchdriection.Pitch += launchroation;
?? ?//发射速率
?? ?FVector launchvectory = launchdriection.Vector()*launchstrength;
?? ?ACharacter*character = Cast<ACharacter>(OtherActor);
?? ?if (character)
?? ?{
?? ??? ?character->LaunchCharacter(launchvectory,true,true);
?? ??? ?UGameplayStatics::SpawnEmitterAtLocation(this, particle, GetActorLocation());
?? ?}
?? ?else if (OtherComp&&OtherComp->IsSimulatingPhysics())//物体也可以触发发射
?? ?{
?? ??? ?
?? ??? ?OtherComp->AddImpulse(launchvectory, NAME_None, true);
?? ??? ?UGameplayStatics::SpawnEmitterAtLocation(this, particle, GetActorLocation());
?? ?}
}
?