Basic mouse look implementation (only left/right)

Source/MyProject3/SpaceshipPawn.cpp

@@ -5,6 +5,9 @@
 #include "EnhancedInputComponent.h"
 #include "EnhancedInputSubsystems.h"
 #include "SpaceshipProjectile.h"
+#include "Kismet/GameplayStatics.h"
+#include "GameFramework/GameUserSettings.h"
+
 
 ASpaceshipPawn::ASpaceshipPawn()
 {
@@ -40,20 +43,36 @@ ASpaceshipPawn::ASpaceshipPawn()
     CurrentVelocity = FVector::ZeroVector;
     CurrentPitch = 0.0f;
     CurrentYaw = 0.0f;
-    ShipRotation = FRotator::ZeroRotator;
+    TargetRotation = FRotator::ZeroRotator;
 }
 
 void ASpaceshipPawn::BeginPlay()
 {
     Super::BeginPlay();
 
-    // Add Input Mapping Context
-    if (APlayerController* PlayerController = Cast<APlayerController>(Controller))
+    // Store player controller reference
+    PlayerControllerRef = Cast<APlayerController>(Controller);
+
+    if (PlayerControllerRef)
     {
-        if (UEnhancedInputLocalPlayerSubsystem* Subsystem = ULocalPlayer::GetSubsystem<UEnhancedInputLocalPlayerSubsystem>(PlayerController->GetLocalPlayer()))
+        // Setup input mapping context
+        if (UEnhancedInputLocalPlayerSubsystem* Subsystem = ULocalPlayer::GetSubsystem<UEnhancedInputLocalPlayerSubsystem>(PlayerControllerRef->GetLocalPlayer()))
         {
             Subsystem->AddMappingContext(DefaultMappingContext, 0);
         }
+
+        // Setup mouse capture and fullscreen
+        PlayerControllerRef->SetShowMouseCursor(false);
+        PlayerControllerRef->SetInputMode(FInputModeGameOnly());
+
+        // Request fullscreen mode using GameUserSettings
+        UGameUserSettings* GameUserSettings = UGameUserSettings::GetGameUserSettings();
+        if (GameUserSettings)
+        {
+            GameUserSettings->SetFullscreenMode(EWindowMode::Fullscreen);
+            GameUserSettings->SetScreenResolution(FIntPoint(1920, 1080)); // Adjust the resolution if needed
+            GameUserSettings->ApplySettings(false);
+        }
     }
 }
 
@@ -71,16 +90,6 @@ void ASpaceshipPawn::Tick(float DeltaTime)
         CurrentThrust = FMath::FInterpTo(CurrentThrust, TargetThrust, DeltaTime, ThrustAcceleration);
     }
 
-    // Smoothly interpolate to target rotation
-    FRotator CurrentRotation = GetActorRotation();
-    FRotator NewRotation = FMath::RInterpTo(
-        CurrentRotation,
-        ShipRotation,
-        DeltaTime,
-        RotationSpeed
-    );
-    SetActorRotation(NewRotation);
-
     // Update movement based on ship's forward vector
     FVector ThrustDirection = GetActorForwardVector();
     FVector ThrustForce = ThrustDirection * CurrentThrust;
@@ -103,6 +112,57 @@ void ASpaceshipPawn::Tick(float DeltaTime)
         GEngine->AddOnScreenDebugMessage(-1, 0.0f, FColor::Green,
             FString::Printf(TEXT("Velocity: %.2f"), CurrentVelocity.Size()));
     }
+
+    // Smooth mouse movement
+    MouseDeltaSmoothed = FMath::Vector2DInterpTo(
+        MouseDeltaSmoothed,
+        LastMouseDelta,
+        DeltaTime,
+        MouseSmoothingSpeed
+    );
+
+    // Update rotation based on smoothed mouse movement
+    CurrentYaw += MouseDeltaSmoothed.X * MouseSensitivity * DeltaTime * 60.0f;  // Multiply by 60 to normalize for frame rate
+    CurrentPitch = FMath::ClampAngle(
+        CurrentPitch + (-MouseDeltaSmoothed.Y * MouseSensitivity * DeltaTime * 60.0f),
+        -85.0f,
+        85.0f
+    );
+
+    // Set target rotation
+    TargetRotation = FRotator(CurrentPitch, CurrentYaw, 0.0f);
+
+    // Smoothly interpolate to target rotation using quaternions for better interpolation
+    FQuat CurrentQuat = GetActorQuat();
+    FQuat TargetQuat = TargetRotation.Quaternion();
+    FQuat NewQuat = FQuat::Slerp(CurrentQuat, TargetQuat, RotationSpeed * DeltaTime);
+    SetActorRotation(NewQuat);
+
+    // Update spring arm rotation to match ship with smooth interpolation
+    if (CameraSpringArm)
+    {
+        FRotator SpringArmRotation = CameraSpringArm->GetComponentRotation();
+        FRotator TargetSpringArmRotation = NewQuat.Rotator();
+        FRotator NewSpringArmRotation = FMath::RInterpTo(
+            SpringArmRotation,
+            TargetSpringArmRotation,
+            DeltaTime,
+            RotationSpeed
+        );
+        CameraSpringArm->SetWorldRotation(NewSpringArmRotation);
+    }
+
+    // Reset mouse delta for next frame
+    LastMouseDelta = FVector2D::ZeroVector;
+
+    // Debug info
+    if (GEngine)
+    {
+        GEngine->AddOnScreenDebugMessage(-1, 0.0f, FColor::Yellow, 
+            FString::Printf(TEXT("Smoothed Mouse Delta: X=%.2f Y=%.2f"), MouseDeltaSmoothed.X, MouseDeltaSmoothed.Y));
+        GEngine->AddOnScreenDebugMessage(-1, 0.0f, FColor::Green, 
+            FString::Printf(TEXT("Current Rotation: P=%.2f Y=%.2f"), CurrentPitch, CurrentYaw));
+    }
 }
 
 void ASpaceshipPawn::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
@@ -116,7 +176,7 @@ void ASpaceshipPawn::SetupPlayerInputComponent(UInputComponent* PlayerInputCompo
         EnhancedInputComponent->BindAction(ThrottleAction, ETriggerEvent::Completed, this, &ASpaceshipPawn::HandleThrottleReleased);
 
         // Bind mouse control
-        EnhancedInputComponent->BindAction(MouseControlAction, ETriggerEvent::Started, this, &ASpaceshipPawn::HandleMouseControl);
+        EnhancedInputComponent->BindAction(MouseControlAction, ETriggerEvent::Triggered, this, &ASpaceshipPawn::HandleMouseLook);
 
         // Bind fire action
         EnhancedInputComponent->BindAction(FireAction, ETriggerEvent::Triggered, this, &ASpaceshipPawn::HandleFire);
@@ -136,28 +196,12 @@ void ASpaceshipPawn::HandleThrottleReleased(const FInputActionValue& Value)
     bThrottlePressed = false;
 }
 
-void ASpaceshipPawn::HandleMouseControl(const FInputActionValue& Value)
+void ASpaceshipPawn::HandleMouseLook(const FInputActionValue& Value)
 {
-    const FVector2D MouseValue = Value.Get<FVector2D>();
+    const FVector2D MouseDelta = Value.Get<FVector2D>();
 
-    // Mouse sensitivity factors
-    const float MouseSensitivityX = 1.0f;
-    const float MouseSensitivityY = 1.0f;
-
-    // Update current rotation based on mouse input
-    CurrentYaw += MouseValue.X * MouseSensitivityX;
-    CurrentPitch = FMath::ClampAngle(CurrentPitch + (-MouseValue.Y * MouseSensitivityY), -85.0f, 85.0f);
-
-    // Create target rotation
-    ShipRotation = FRotator(CurrentPitch, CurrentYaw, 0.0f);
-
-    if (GEngine)
-    {
-        GEngine->AddOnScreenDebugMessage(-1, 0.0f, FColor::Blue,
-            FString::Printf(TEXT("Mouse Input - X: %.2f, Y: %.2f"), MouseValue.X, MouseValue.Y));
-        GEngine->AddOnScreenDebugMessage(-1, 0.0f, FColor::Purple,
-            FString::Printf(TEXT("Ship Rotation - Pitch: %.2f, Yaw: %.2f"), CurrentPitch, CurrentYaw));
-    }
+    // Smoothly interpolate mouse delta
+    LastMouseDelta = MouseDelta;
 }
 
 void ASpaceshipPawn::HandleFire(const FInputActionValue& Value)

Source/MyProject3/SpaceshipPawn.h

@@ -54,13 +54,16 @@ protected:
     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
     float RotationSpeed = 100.0f;
 
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
+    float MouseSensitivity = 2.0f;
+
     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
     float DragCoefficient = 0.1f;
 
     // Input functions
     void HandleThrottleStarted(const FInputActionValue& Value);
     void HandleThrottleReleased(const FInputActionValue& Value);
-    void HandleMouseControl(const FInputActionValue& Value);
+    void HandleMouseLook(const FInputActionValue& Value);
     void HandleFire(const FInputActionValue& Value);
 
 private:
@@ -69,7 +72,13 @@ private:
     float TargetThrust;
     bool bThrottlePressed;
     FVector CurrentVelocity;
-    FRotator ShipRotation;
+    FRotator TargetRotation;
+
     float CurrentPitch;
     float CurrentYaw;
+    APlayerController* PlayerControllerRef;
+
+    FVector2D MouseDeltaSmoothed;
+    FVector2D LastMouseDelta;
+    float MouseSmoothingSpeed = 10.0f;  
 };