【UE4 C++】07-角色运动设置

**UE4 C++07-角色运动设置**

在 UE4 中，角色运动是游戏中最基本也是最重要的方面之一。通过设置合适的运动参数，我们可以让角色更自然、更流畅地移动。在本文中，我们将介绍如何使用 C++ 在 UE4 中设置角色运动。

**1. 创建角色类**

首先，我们需要创建一个角色类来存储我们的运动参数。我们可以在 UE4 的 Content Browser 中右键点击，选择 "C++ Class"，然后输入类名，如下所示：

cpp// MyCharacter.h#pragma once#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "GameFramework/Character.h"

UCLASS()
class MYGAME_API AMyCharacter : public ACharacter{
 GENERATED_BODY()

public:
 // Constructor AMyCharacter();

protected:
 // Called when the game starts or when spawned virtual void BeginPlay() override;

public:
 // Called every frame virtual void Tick(float DeltaTime) override;
};

cpp// MyCharacter.cpp#include "MyCharacter.h"

AMyCharacter::AMyCharacter()
{
 // Set this character to call Tick on every frame. You can change this to call every n seconds.
 PrimaryActorTick.bCanEverTick = true;

 // Set up movement parameters MovementParameters = FMovementParameters();
}

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

 // Initialize movement parameters MovementParameters.MaxWalkSpeed =500.0f;
 MovementParameters.MaxRunSpeed =1000.0f;
 MovementParameters.AccelerationRate =5.0f;
 MovementParameters.BrakingDecelerationRate =10.0f;
}

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

 // Update movement parameters if (MovementParameters.MaxWalkSpeed >0.0f)
 {
 // Update walk speed WalkSpeed = MovementParameters.MaxWalkSpeed * DeltaTime;

 // Update run speed RunSpeed = MovementParameters.MaxRunSpeed * DeltaTime;
 }
}

cpp// MovementParameters.h#pragma once#include "CoreMinimal.h"

USTRUCT()
struct MYGAME_API FMovementParameters{
 GENERATED_BODY()

public:
 // Maximum walk speed (in cm/s)
 UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
 float MaxWalkSpeed;

 // Maximum run speed (in cm/s)
 UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
 float MaxRunSpeed;

 // Acceleration rate (in cm/s^2)
 UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
 float AccelerationRate;

 // Braking deceleration rate (in cm/s^2)
 UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
 float BrakingDecelerationRate;
};

cpp// CharacterTypes.h#pragma once#include "CoreMinimal.h"

UENUM()
enum class ECharacterType : uint8{
 // Default character type DEFAULT,

 // Fast character type FAST,

 // Heavy character type HEAVY,
};

// Character movement parameters based on character typeUMovementParameters = FMovementParameters();

switch (CharacterType)
{
case ECharacterType::DEFAULT:
 MovementParameters.MaxWalkSpeed =500.0f;
 MovementParameters.MaxRunSpeed =1000.0f;
 break;

case ECharacterType::FAST:
 MovementParameters.MaxWalkSpeed =750.0f;
 MovementParameters.MaxRunSpeed =1500.0f;
 break;

case ECharacterType::HEAVY:
 MovementParameters.MaxWalkSpeed =250.0f;
 MovementParameters.MaxRunSpeed =500.0f;
 break;
}