feat: 摄像头缩放

feat: 增加移动系统

Config/DefaultEngine.ini

@@ -53,4 +53,3 @@ ManualIPAddress=
 
 [/Script/UnrealBuildTool.UnrealBuildTool]
 bAllowGitCommandlineIntegration=False
-

Source/lonese/CameraPawn.cpp

@@ -0,0 +1,80 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+
+#include "CameraPawn.h"
+
+#include "GameFramework/SpringArmComponent.h"
+#include "Camera/CameraComponent.h"
+#include "InputActionValue.h"
+
+void ACameraPawn::CameraZoom(const FInputActionValue& Value)
+{
+	auto f = Value.Get<float>();
+	SpringArmComponent->TargetArmLength += f * 10.0f;
+	SpringArmComponent->TargetArmLength = FMath::Clamp(SpringArmComponent->TargetArmLength, 300.0f, 3000.0f);
+}
+
+void ACameraPawn::CameraRotate(const FInputActionValue& Value)
+{
+}
+
+void ACameraPawn::CameraMove(const FInputActionValue& Value)
+{
+	auto f2d = Value.Get<FVector2D>();
+	auto r = GetActorRightVector();
+	auto f = r.Cross(FVector::UpVector);
+	f.Normalize();
+	SetActorLocation(GetActorLocation() + f * f2d.X * 10.0f + r * f2d.Y * 10.0f);
+}
+
+// Sets default values
+ACameraPawn::ACameraPawn()
+{
+ 	// Set this pawn to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
+	PrimaryActorTick.bCanEverTick = true;
+
+	// 初始化 SpringArmComponent 和 CameraComponent
+	SpringArmComponent = CreateDefaultSubobject<USpringArmComponent>(TEXT("SpringArmComponent"));
+	SpringArmComponent->SetupAttachment(RootComponent);
+	SpringArmComponent->TargetArmLength = 1200.f;
+	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
+void ACameraPawn::BeginPlay()
+{
+	Super::BeginPlay();
+	
+	if (FollowTarget)
+	{
+		// 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);
+	}
+}
+
+// Called every frame
+void ACameraPawn::Tick(float DeltaTime)
+{
+	Super::Tick(DeltaTime);
+
+}
+
+// Called to bind functionality to input
+void ACameraPawn::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
+{
+	Super::SetupPlayerInputComponent(PlayerInputComponent);
+
+}
+

Source/lonese/CameraPawn.h

@@ -0,0 +1,43 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "GameFramework/Pawn.h"
+#include "CameraPawn.generated.h"
+
+UCLASS()
+class LONESE_API ACameraPawn : public APawn
+{
+	GENERATED_BODY()
+
+public:
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Camera")
+	class USpringArmComponent* SpringArmComponent;
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Camera")
+	class UCameraComponent* CameraComponent;
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Camera")
+	APawn* FollowTarget;
+
+	UFUNCTION(BlueprintCallable, Category = "Camera")
+	void CameraZoom(const FInputActionValue& Value);
+	UFUNCTION(BlueprintCallable, Category = "Camera")
+	void CameraRotate(const FInputActionValue& Value);
+	UFUNCTION(BlueprintCallable, Category = "Camera")
+	void CameraMove(const FInputActionValue& Value);
+
+	// Sets default values for this pawn's properties
+	ACameraPawn();
+	// Called every frame
+	virtual void Tick(float DeltaTime) override;
+
+	// Called to bind functionality to input
+	virtual void SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent) override;
+
+protected:
+	// Called when the game starts or when spawned
+	virtual void BeginPlay() override;
+
+private:	
+
+};

Source/lonese/MyCharacter.cpp

@@ -7,6 +7,8 @@
 #include "EnhancedInputComponent.h"
 #include "GameFramework/CharacterMovementComponent.h"
 
+#include "CameraPawn.h"
+
 void AMyCharacter::Move(const FInputActionValue& Value)
 {
 	auto f2d = Value.Get<FVector2D>();
@@ -43,6 +45,30 @@ void AMyCharacter::StopCrouch(const FInputActionValue& Value)
 	UE_LOG(LogTemp, Warning, TEXT("Stop Crouch"));
 }
 
+void AMyCharacter::CameraMove(const FInputActionValue& Value)
+{
+	if (CameraActor)
+	{
+		CameraActor->CameraMove(Value);
+	}
+}
+
+void AMyCharacter::CameraRotate(const FInputActionValue& Value)
+{
+	if (CameraActor)
+	{
+		CameraActor->CameraRotate(Value);
+	}
+}
+
+void AMyCharacter::CameraZoom(const FInputActionValue& Value)
+{
+	if (CameraActor)
+	{
+		CameraActor->CameraZoom(Value);
+	}
+}
+
 // Sets default values
 AMyCharacter::AMyCharacter()
 {
@@ -57,6 +83,29 @@ void AMyCharacter::BeginPlay()
 {
 	Super::BeginPlay();
 
+	auto w = GetWorld();
+	ACameraPawn* temp = nullptr;
+	if (w)
+	{
+		UClass* CameraClass;
+		if (CameraActorClass)
+		{
+			CameraClass = CameraActorClass;
+		}
+		else
+		{
+			CameraClass = ACameraPawn::StaticClass();
+		}
+		FTransform SpawnTransform(GetActorRotation(), GetActorLocation());
+		temp = w->SpawnActorDeferred<ACameraPawn>(CameraClass, SpawnTransform);
+		temp->SetActorRotation(FRotator(-60.0f, 0.0f, 0.0f));
+		temp->FollowTarget = this;
+		temp->FinishSpawning(SpawnTransform);
+	}
+	if (temp)
+	{
+		CameraActor = temp;
+	}
 }
 
 // Called every frame
@@ -96,6 +145,14 @@ void AMyCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputCompone
 			EnhancedInputComponent->BindAction(CrouchAction, ETriggerEvent::Started, this, &AMyCharacter::BeginCrouch);
 			EnhancedInputComponent->BindAction(CrouchAction, ETriggerEvent::Completed, this, &AMyCharacter::StopCrouch);
 		}
+		if (CameraMoveAction)
+		{
+			EnhancedInputComponent->BindAction(CameraMoveAction, ETriggerEvent::Triggered, this, &AMyCharacter::CameraMove);
+		}
+		if (CameraZoomAction)
+		{
+			EnhancedInputComponent->BindAction(CameraZoomAction, ETriggerEvent::Triggered, this, &AMyCharacter::CameraZoom);
+		}
 	}
 }
 

Source/lonese/MyCharacter.h

@@ -20,6 +20,13 @@ public:
 	class UInputAction* RunAction;
 	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Input")
 	class UInputAction* CrouchAction;
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Input")
+	class UInputAction* CameraMoveAction;
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Input")
+	class UInputAction* CameraZoomAction;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Camera")
+	class TSubclassOf<class ACameraPawn> CameraActorClass;
 
 	UFUNCTION(BlueprintCallable, Category = "Move")
 	void Move(const FInputActionValue& Value);
@@ -52,4 +59,11 @@ protected:
 private:
 	bool bIsRunning = false;
 	bool bIsCrouching = false;
+
+	UPROPERTY(VisibleInstanceOnly, Category = "Camera")
+	class ACameraPawn* CameraActor;
+
+	void CameraZoom(const FInputActionValue& Value);
+	void CameraRotate(const FInputActionValue& Value);
+	void CameraMove(const FInputActionValue& Value);
 };

lonese.uproject

@@ -7,7 +7,10 @@
 		{
 			"Name": "lonese",
 			"Type": "Runtime",
-      "LoadingPhase": "Default"
+			"LoadingPhase": "Default",
+			"AdditionalDependencies": [
+				"Engine"
+			]
 		}
 	],
 	"Plugins": [
@@ -24,11 +27,8 @@
 			"Enabled": true,
 			"SupportedTargetPlatforms": [
 				"Win64"
+			],
+			"MarketplaceURL": "com.epicgames.launcher://ue/marketplace/product/362651520df94e4fa65492dbcba44ae2"
+		}
 	]
 }
-  ],
-  "TargetPlatforms": [],
-  "AdditionalRootDirectories": [],
-  "AdditionalPluginDirectories": [],
-  "EpicSampleNameHash": ""
-}