【UE4】【C++】【官方实例】实现基础第一人称视角旋转、左右前后移动，Gamemode设置DefaultPawn

1.创建C++类（人物--->Character类）

2.项目设置里设置好输入

3.

Character.h

/** Base turn rate, in deg/sec. Other scaling may affect final turn rate. */
UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category=Camera)
float BaseTurnRate;

/** Base look up/down rate, in deg/sec. Other scaling may affect final rate. */
UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category=Camera)
float BaseLookUpRate;

protected:
// APawn interface
virtual void SetupPlayerInputComponent(UInputComponent* InputComponent) override;    //设置、绑定输入的函数
// End of APawn interface

#include "Components/InputComponent.h"
#include "GameFramework/InputSettings.h"
void ALearnOfficialFPCharacter::SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent)
{
	// set up gameplay key bindings
	check(PlayerInputComponent);


	// Bind movement events
	PlayerInputComponent->BindAxis("MoveForward", this, &ALearnOfficialFPCharacter::MoveForward);
	PlayerInputComponent->BindAxis("MoveRight", this, &ALearnOfficialFPCharacter::MoveRight);

	// We have 2 versions of the rotation bindings to handle different kinds of devices differently
	// "turn" handles devices that provide an absolute delta, such as a mouse.
	// "turnrate" is for devices that we choose to treat as a rate of change, such as an analog joystick(遥控杆)
	PlayerInputComponent->BindAxis("Turn", this, &APawn::AddControllerYawInput);
	PlayerInputComponent->BindAxis("TurnRate", this, &ALearnOfficialFPCharacter::TurnAtRate);
	PlayerInputComponent->BindAxis("LookUp", this, &APawn::AddControllerPitchInput);
	PlayerInputComponent->BindAxis("LookUpRate", this, &ALearnOfficialFPCharacter::LookUpAtRate);
}

Character.cpp

ALearnOfficialFPCharacter::ALearnOfficialFPCharacter()
{
	// Set size for collision capsule
	GetCapsuleComponent()->InitCapsuleSize(55.f, 96.0f);

	// set our turn rates for input
	BaseTurnRate = 45.f;
	BaseLookUpRate = 45.f;
}

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Gamemode.h

public:
	ALearnOfficialFPGameMode();
};

Gamemode.cpp

#include "UObject/ConstructorHelpers.h"

ALearnOfficialFPGameMode::ALearnOfficialFPGameMode()
	: Super()
{
	// set default pawn class to our Blueprinted character
	static ConstructorHelpers::FClassFinder PlayerPawnClassFinder(TEXT("/Game/FirstPersonCPP/Blueprints/FirstPersonCharacter"));
	DefaultPawnClass = PlayerPawnClassFinder.Class;

	// use our custom HUD class
	HUDClass = ALearnOfficialFPHUD::StaticClass();
}