网站开发中 html网站模板如何修改域名
这是flyBird的第二天，做了一些简单的功能，明天继续更新
vs的番茄插件
在visual stdudio里使用可以帮助代码补全，这一篇博客写的不错，大家可以参考一下。VS2019 安装番茄助手（Visual Assist x 插件）攻略_vs2019番茄助手-CSDN博客
实现跳跃功能
想要实现跳跃的功能，首先需要物体是开启了物理模拟的情况下，才能实现的。
使用物理模拟的APISetSimulatePhysics调整为true,实现跳跃就是添加对应的向上的力。
void ABirdPawn::DoFly()
{UE_LOG(LogTemp, Log, TEXT("DoFly"));// 开启物理模拟BirdRenderComp->SetSimulatePhysics(true);//清理原有力的速度BirdRenderComp->SetPhysicsLinearVelocity(FVector::ZeroVector);// 添加力BirdRenderComp->AddImpulse(FVector::UpVector * 400, NAME_None, true);
}
在UE中加载地板
- 在对应的游戏模式里面去添加ALandActor的指针。
ALandActor* LandActor;;
class ABgActor;class ALandActor;/*** */UCLASS()class FLYBIRD_API AFlyBirdGameModeBase : public AGameModeBase{GENERATED_BODY()AFlyBirdGameModeBase();protected:virtual void BeginPlay() override;protected:UPROPERTY()ABgActor* BgActor;ALandActor* LandActor;};- 然后在里面去设置LandActor。
#include "FlyBirdGameModeBase.h"
#include "BirdPawn.h"
#include "Engine/World.h"
#include "BgActor.h"
#include "LandActor.h"AFlyBirdGameModeBase::AFlyBirdGameModeBase()
{DefaultPawnClass = ABirdPawn::StaticClass();
}void AFlyBirdGameModeBase::BeginPlay()
{Super::BeginPlay();BgActor = GetWorld()->SpawnActor<ABgActor>();BgActor->SetActorLocation(FVector(0, -100,0));// 在该世界中生成指定类型actorLandActor = GetWorld()->SpawnActor<ALandActor>();LandActor->SetActorLocation(FVector(0, 0, -200));
}
3.LandActor本身的设置
#pragma once#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "LandActor.generated.h"class UPaperSpriteComponent;
UCLASS()
class FLYBIRD_API ALandActor : public AActor
{GENERATED_BODY()public: // Sets default values for this actor's propertiesALandActor();protected:// Called when the game starts or when spawnedvirtual void BeginPlay() override;public: // Called every framevirtual void Tick(float DeltaTime) override;protected:// 这里的UPROPERTY() 是让虚幻帮助我们去管理内存UPROPERTY()// 设置我们的第一块组件UPaperSpriteComponent* FirstSpriteRender;UPROPERTY()UPaperSpriteComponent* SecondSpriteRender;};
- 设置场景组件
- 设置依附关系
- 如何在构造函数上添加资产
- 调整第二块精灵的位置
#include "LandActor.h"
#include "PaperSpriteComponent.h"
#include "UObject/ConstructorHelpers.h"
#include "PaperSprite.h"// Sets default values
ALandActor::ALandActor()
{// 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;// 添加空的场景组件RootComponent = CreateDefaultSubobject<USceneComponent>(TEXT("RootComp"));FirstSpriteRender = CreateDefaultSubobject<UPaperSpriteComponent>(TEXT("land1SpriteRender"));SecondSpriteRender = CreateDefaultSubobject<UPaperSpriteComponent>(TEXT("land2SpriteRender"));// 设置依附关系FirstSpriteRender->SetupAttachment(RootComponent);SecondSpriteRender->SetupAttachment(RootComponent);// 如何在构造函数上加载资产ConstructorHelpers::FObjectFinder<UPaperSprite> LandSpriteObj(TEXT("PaperSprite'/Game/FlyBird/Textures/BG/land_Sprite.land_Sprite'"));// 设置精灵资产FirstSpriteRender->SetSprite(LandSpriteObj.Object);SecondSpriteRender->SetSprite(LandSpriteObj.Object);//调整第二块精灵的位置SecondSpriteRender->SetRelativeLocation(FVector(336,0,0));
}// Called when the game starts or when spawned
void ALandActor::BeginPlay()
{Super::BeginPlay();}// Called every frame
void ALandActor::Tick(float DeltaTime)
{Super::Tick(DeltaTime);
}让地板运动起来
依旧是修改landActor.写一个函数UpdateMove 来实现移动功能,然后定义一个变量MoveSpeed控制移动速度
#pragma once#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "LandActor.generated.h"class UPaperSpriteComponent;
UCLASS()
class FLYBIRD_API ALandActor : public AActor
{GENERATED_BODY()public: // Sets default values for this actor's propertiesALandActor();protected:// Called when the game starts or when spawnedvirtual void BeginPlay() override;void UpdateMove(float DeltaTime);
public: // Called every framevirtual void Tick(float DeltaTime) override;protected:UPROPERTY()UPaperSpriteComponent* FirstSpriteRender;UPROPERTY()UPaperSpriteComponent* SecondSpriteRender;float MoveSpeed;};在具体实现的时候
#include "PaperSpriteComponent.h"
#include "UObject/ConstructorHelpers.h"
#include "PaperSprite.h"// Sets default values
ALandActor::ALandActor()
{// 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;// 添加空的场景组件RootComponent = CreateDefaultSubobject<USceneComponent>(TEXT("RootComp"));FirstSpriteRender = CreateDefaultSubobject<UPaperSpriteComponent>(TEXT("land1SpriteRender"));SecondSpriteRender = CreateDefaultSubobject<UPaperSpriteComponent>(TEXT("land2SpriteRender"));// 设置依附关系FirstSpriteRender->SetupAttachment(RootComponent);SecondSpriteRender->SetupAttachment(RootComponent);// 如何在构造函数上加载资产ConstructorHelpers::FObjectFinder<UPaperSprite> LandSpriteObj(TEXT("PaperSprite'/Game/FlyBird/Textures/BG/land_Sprite.land_Sprite'"));// 设置精灵资产FirstSpriteRender->SetSprite(LandSpriteObj.Object);SecondSpriteRender->SetSprite(LandSpriteObj.Object);//调整第二块精灵的位置SecondSpriteRender->SetRelativeLocation(FVector(336,0,0));MoveSpeed = 200;
}// Called when the game starts or when spawned
void ALandActor::BeginPlay()
{Super::BeginPlay();}void ALandActor::UpdateMove(float DeltaTime)
{if (!FirstSpriteRender || !SecondSpriteRender) // 防止组件为空执行逻辑崩溃{return;}// 写一些移动逻辑，这里的数值是精灵资产图片的大小FirstSpriteRender->AddRelativeLocation(FVector::ForwardVector* -1 * MoveSpeed * DeltaTime);SecondSpriteRender->AddRelativeLocation(FVector::ForwardVector * -1 * MoveSpeed * DeltaTime);// 检查地板是否超出移动范围if (FirstSpriteRender->GetRelativeTransform().GetLocation().X < -336) { FirstSpriteRender->SetRelativeLocation(SecondSpriteRender->GetRelativeTransform().GetLocation() + FVector::ForwardVector * 336);}if (SecondSpriteRender->GetRelativeTransform().GetLocation().X < -336) {SecondSpriteRender->SetRelativeLocation(FirstSpriteRender->GetRelativeTransform().GetLocation() + FVector::ForwardVector * 336);}}// Called every frame
void ALandActor::Tick(float DeltaTime)
{Super::Tick(DeltaTime);UpdateMove(DeltaTime);}
遇到的问题
UPaperSpriteComponent* FirstSpriteRender; 是什么意思，为什么指针类型要为UPaperSpriteComponent？
- 在虚幻引擎中，UPaperSpriteComponent 用于在 2D 场景中渲染精灵图像。
- 在 2D 游戏开发中，当需要动态创建、管理或修改精灵的显示相关属性时，就会用到这种指针声明。