UE4的C++写战舰游戏

最近战舰世界(World of Warships)在11月27号公测,舰娘厨估计都很兴奋吧.这次在它公测之前用UE4和C++写一个小的战舰世界的demo,算是对它致敬吧

先放出WOWS的官网http://wows.kongzhong.com/

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然后放一张舰队的图

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正文来了.

新建一个C++的工程,叫WarOfWarShip,如图

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新建一个空白的关卡

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然后去找UE4内置给我的地形材质,发现有一个Ocean Water的,如图.我们就使用这个材质

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水还是很良心的

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然后回到刚刚的主场景,导入一艘我们的主角船.我这次选的模型是雪風号驱逐舰.

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运行一下看 效果还是挺良心的

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不过还是少了点什么,船没有随着水波飘动.刷一个梗 <来自风平浪静的明天>,那我们开始写C++代码,让传动起来

新建C++类

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选择StaticMeshActor类,为我们的静态传模型添加代码

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然后等VS启动

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加上些代码 处理在水面漂浮

// MyWarShip.h
 // Write By 小小酥 on 2015-11-21

#pragma once

#include "Engine/StaticMeshActor.h"
#include "MyWarShip.generated.h"

/**
 * 
 */
UCLASS()
class WAROFWARSHIP_API AMyWarShip : public AStaticMeshActor
{
    GENERATED_BODY()
    
public:
    
    AMyWarShip();

    virtual void Tick(float DeltaTime) override;
    virtual void BeginPlay() override;

    void PostInitProperties(FPropertyChangedEvent & PropertyChangedEvent);

    UPROPERTY(EditAnywhere, Category = "MyWarShip")
    float WaveStrength;
    
    UPROPERTY(VisibleAnywhere, Category = "MyWarShip")
    FVector2D WaveFactor;
    FVector2D WaveOffset;
#if WITH_EDITOR
    virtual void PostInitProperties() override;
#endif  
};

//MyWarShip.cpp

#include "WarOfWarShip.h"
#include "MyWarShip.h"

AMyWarShip::AMyWarShip() {

    WaveStrength = 1.5f;

    WaveFactor = FVector2D::ZeroVector;
    WaveOffset.X = FMath::FRandRange(0, WaveStrength * 10);
    WaveOffset.Y = FMath::FRandRange(0, WaveStrength * 10);

    PrimaryActorTick.bCanEverTick = true;
}

void AMyWarShip::Tick(float DeltaTime) {
    Super::Tick(DeltaTime);

    float delta = DeltaTime*WaveStrength;

    WaveFactor.X *= delta * 0.73f;
    WaveFactor.Y *= delta * 1.22f;

    FRotator rot(0, 0, 0);
    rot.Pitch = FMath::Sin(WaveOffset.X + WaveFactor.X)*WaveStrength*0.75f;
    rot.Roll = FMath::Sin(WaveOffset.Y + WaveFactor.Y)*WaveStrength*1.5f;
    SetActorRelativeRotation(rot);
    //SetActorRotation(rot);
}

void AMyWarShip::BeginPlay() {
    Super::BeginPlay();

    SetMobility(EComponentMobility::Movable);
}

#if WITH_EDITOR
void AMyWarShip::PostInitProperties() {
    Super::PostInitProperties();

    WaveFactor.X = FMath::FRandRange(0, WaveStrength * 10);
    WaveFactor.Y = FMath::FRandRange(0, WaveStrength * 10);
}
#endif

最后的效果

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