feat: 增加摄像机跟随

Source/lonese/CameraPawn.cpp

@@ -5,6 +5,7 @@
 
 #include "GameFramework/SpringArmComponent.h"
 #include "Camera/CameraComponent.h"
+#include "InputActionValue.h"
 
 void ACameraPawn::CameraZoom(const FInputActionValue& Value)
 {
@@ -16,6 +17,10 @@ void ACameraPawn::CameraRotate(const FInputActionValue& Value)
 
 void ACameraPawn::CameraMove(const FInputActionValue& Value)
 {
+	auto f2d = Value.Get<FVector2D>();
+	auto f = GetActorForwardVector();
+	auto r = GetActorRightVector();
+	SetActorLocation(GetActorLocation() + f * f2d.X * 10.0f + r * f2d.Y * 10.0f);
 }
 
 // Sets default values
@@ -31,6 +36,9 @@ ACameraPawn::ACameraPawn()
 	SpringArmComponent->bUsePawnControlRotation = true;
 	CameraComponent = CreateDefaultSubobject<UCameraComponent>(TEXT("CameraComponent"));
 	CameraComponent->SetupAttachment(SpringArmComponent, USpringArmComponent::SocketName);
+	
+	// 设置弹簧臂碰撞属性
+	SpringArmComponent->bDoCollisionTest = false;
 }
 
 // Called when the game starts or when spawned
@@ -38,10 +46,17 @@ void ACameraPawn::BeginPlay()
 {
 	Super::BeginPlay();
 	
-	// 设置摄像头可见性
-	if (CameraComponent)
+	if (FollowTarget)
 	{
-		CameraComponent->SetVisibility(true);
+		// 切换到当前摄像头
+		auto c = Cast<APlayerController>(FollowTarget->GetController());
+		if (c)
+		{
+			c->SetViewTarget(this);
+		}
+
+		// 附加到父物体
+		this->AttachToActor(FollowTarget, FAttachmentTransformRules::KeepWorldTransform);
 	}
 }
 

Source/lonese/MyCharacter.cpp

@@ -67,6 +67,7 @@ void AMyCharacter::BeginPlay()
 		{
 			FTransform SpawnTransform(GetActorRotation(), GetActorLocation());
 			temp = w->SpawnActorDeferred<ACameraPawn>(CameraActorClass, SpawnTransform);
+			temp->SetActorRotation(FRotator(-60.0f, 0.0f, 0.0f));
 			temp->FollowTarget = this;
 			temp->FinishSpawning(SpawnTransform);
 		}