01UEc++【打飞艇】

1.创建一个空的c++项目

 2.添加飞行器类，继承于pwan

3.添加静态组件

	UPROPERTY(VisibleAnywhere)
	class UStaticMeshComponent* Mesh;

 4.在源文件中初始化

#include "Components/StaticMeshComponent.h"

Mesh = CreateDefaultSubobject(TEXT("Mesh"));
RootComponent = Mesh;

5.创建飞行器的模型

  

6. 此时导入无人机模型

点击导入 

 

 

7.打开无人机蓝图，选择无人机模型

 8.导入螺旋桨模型

 

9.为无人机的网格体添加四个插槽，装螺旋桨

10.添加插槽

11.关掉吸附功能，比较好操作

12.在顶视图设置位置

13.切换到前视图，继续调整位置

14.依次添加三个插槽

 15.在c++的无人机类里面，为螺旋桨添加四个静态网格体变量

	//螺旋桨
	UPROPERTY(VisibleAnywhere)
	UStaticMeshComponent* Paddle1;
 
	UPROPERTY(VisibleAnywhere)
	UStaticMeshComponent* Paddle2;
 
	UPROPERTY(VisibleAnywhere)
	UStaticMeshComponent* Paddle3;
 
	UPROPERTY(VisibleAnywhere)
	UStaticMeshComponent* Paddle4;

 16.在源文件里初始化

	//生成螺旋桨组件
	Paddle1 = CreateDefaultSubobject(TEXT("Paddle1"));
	Paddle2 = CreateDefaultSubobject(TEXT("Paddle2"));
	Paddle3 = CreateDefaultSubobject(TEXT("Paddle3"));
	Paddle4 = CreateDefaultSubobject(TEXT("Paddle4"));
	//绑定根组件,设置插槽位置
	Paddle1->SetupAttachment(Mesh, TEXT("Paddle1"));
	Paddle2->SetupAttachment(Mesh, TEXT("Paddle2"));
	Paddle3->SetupAttachment(Mesh, TEXT("Paddle3"));
	Paddle4->SetupAttachment(Mesh, TEXT("Paddle4"));

17.在无人机蓝图里设置螺旋桨

 

 18.为了无人机添加碰撞盒子，在头文件里声明变量

	//碰撞盒子
	UPROPERTY(VisibleAnywhere)
	class UBoxComponent* OutCollision;

19.在构造函数中，进行初始化设置

	//碰撞盒子,并设为根组件
	OutCollision = CreateDefaultSubobject(TEXT("BoxComponent"));
	//设为根组件
	RootComponent = OutCollision;
	//设置大小
	OutCollision->SetBoxExtent(FVector(100.0f, 100.0f, 100.0f));
	//激活物理特性
	OutCollision->SetSimulatePhysics(true);
	//不希望盒子一直是水平的
	OutCollision->BodyInstance.bLockXRotation = true;
	OutCollision->BodyInstance.bLockYRotation = true;
	//机身组件
	Mesh = CreateDefaultSubobject(TEXT("Mesh"));
	//绑定到根组件
	Mesh->SetupAttachment(RootComponent);

20.编译，然后打开蓝图

 21.修改盒体形状，移动无人机位置

 22.碰撞预设设为pwan

23.设置质量

24. 现在计算一下无人机的重量，重力加速度是-9.8，质量是1kg，重量是其乘积 

25.在头文件中增加向前和向上的推进器组件

	//向上推进器组件
	UPROPERTY(VisibleAnywhere)
	class UPhysicsThrusterComponent* UpThruster;
 
	//向前推进器组件
	UPROPERTY(VisibleAnywhere)
	class UPhysicsThrusterComponent* ForwardThruster;

26.在源文件中引入头文件

#include "PhysicsEngine/PhysicsThrusterComponent.h"
#include "Kismet/KismetMathLibrary.h"

27.在构造函数中初始设置

	UpThruster = CreateDefaultSubobject(TEXT("UpThruster"));
	UpThruster->SetupAttachment(RootComponent);
	UpThruster->ThrustStrength =  980.0f;
	UpThruster->SetAutoActivate(true);
	//x轴指向无人机下方
	UpThruster->SetWorldRotation(UKismetMathLibrary::MakeRotFromX(-this->GetActorUpVector()));
 
	ForwardThruster = CreateDefaultSubobject(TEXT("ForwardThruster"));
	ForwardThruster->SetupAttachment(RootComponent);
	ForwardThruster->ThrustStrength = 0.0f;
	ForwardThruster->SetAutoActivate(true);
	//用法同上
	ForwardThruster->SetWorldRotation(UKismetMathLibrary::MakeRotFromX(-this->GetActorForwardVector()));

28.增加无人机的空气阻力