Attempt to implement damage flash for enemy ships

Reviewed-on: #2

MyProject3.uproject

@@ -7,7 +7,10 @@
 		{
 			"Name": "MyProject3",
 			"Type": "Runtime",
-			"LoadingPhase": "Default"
+			"LoadingPhase": "Default",
+			"AdditionalDependencies": [
+				"Engine"
+			]
 		}
 	],
 	"Plugins": [

Source/MyProject3/EnemySpaceship.cpp

@@ -6,8 +6,7 @@
 #include "DrawDebugHelpers.h"
 #include "Math/UnrealMathUtility.h"
 #include "EnemyProjectile.h"
-
-// Include SpaceshipPawn to access player-specific functionality
+#include "SpaceShooterGameMode.h"
 #include "SpaceshipPawn.h"
 
 AEnemySpaceship::AEnemySpaceship()
@@ -34,6 +33,10 @@ AEnemySpaceship::AEnemySpaceship()
     EnemyMesh->SetCollisionResponseToChannel(ECC_Pawn, ECR_Ignore); // Ignore other pawns
     EnemyMesh->SetCollisionResponseToChannel(ECC_GameTraceChannel1, ECR_Block); // Block player (for damage)
     EnemyMesh->SetGenerateOverlapEvents(true);
+
+    CurrentVelocity = FVector::ZeroVector;
+    TargetVelocity = FVector::ZeroVector;
+    LastPosition = FVector::ZeroVector;
 }
 
 void AEnemySpaceship::BeginPlay()
@@ -52,20 +55,26 @@ void AEnemySpaceship::BeginPlay()
 
     // Randomize initial strafe direction
     StrafeDirection = FMath::RandBool() ? 1.0f : -1.0f;
+
+    LastPosition = GetActorLocation();
+
+    bInitializedFlank = false;
+    LastFlankUpdateTime = 0.0f;
+    CurrentFlankTarget = GetActorLocation();
+
+    InitializeDynamicMaterial();
 }
 
+// Modify Tick function to include flanking behavior
 void AEnemySpaceship::Tick(float DeltaTime)
 {
     Super::Tick(DeltaTime);
 
     if (!PlayerPawn)
     {
-        // Try to find player again if not set
         AActor* FoundPlayerPawn = UGameplayStatics::GetPlayerPawn(GetWorld(), 0);
         PlayerPawn = Cast<ASpaceshipPawn>(FoundPlayerPawn);
-
-        if (!PlayerPawn)
-            return;
+        if (!PlayerPawn) return;
     }
 
     // Calculate distance to player
@@ -89,6 +98,9 @@ void AEnemySpaceship::Tick(float DeltaTime)
     case EEnemyBehaviorState::Strafe:
         PerformStrafe(DeltaTime);
         break;
+    case EEnemyBehaviorState::Flank:
+        PerformFlank(DeltaTime);
+        break;
     }
 
     // Debug state information
@@ -101,6 +113,7 @@ void AEnemySpaceship::Tick(float DeltaTime)
         case EEnemyBehaviorState::Attack: StateString = "Attack"; break;
         case EEnemyBehaviorState::Retreat: StateString = "Retreat"; break;
         case EEnemyBehaviorState::Strafe: StateString = "Strafe"; break;
+        case EEnemyBehaviorState::Flank: StateString = "Flank"; break;
         }
 
         GEngine->AddOnScreenDebugMessage(-1, 0.0f, FColor::Orange,
@@ -108,30 +121,213 @@ void AEnemySpaceship::Tick(float DeltaTime)
     }
 }
 
+
+void AEnemySpaceship::SmoothMove(const FVector& TargetLocation, float DeltaTime)
+{
+    FVector CurrentLocation = GetActorLocation();
+    FVector DirectionToTarget = (TargetLocation - CurrentLocation);
+    float DistanceToTarget = DirectionToTarget.Size();
+
+    // Calculate target velocity
+    FVector NewTargetVelocity = DirectionToTarget;
+    if (DistanceToTarget > 1.0f)
+    {
+        NewTargetVelocity = DirectionToTarget.GetSafeNormal() * FMath::Min(MovementSpeed, DistanceToTarget / DeltaTime);
+    }
+    else
+    {
+        NewTargetVelocity = FVector::ZeroVector;
+    }
+
+    // Smoothly interpolate current velocity towards target velocity
+    CurrentVelocity = FMath::VInterpTo(CurrentVelocity, NewTargetVelocity, DeltaTime, InterpSpeed);
+
+    // Clamp acceleration
+    FVector Acceleration = (CurrentVelocity - (CurrentLocation - LastPosition) / DeltaTime);
+    if (Acceleration.SizeSquared() > MaxAcceleration * MaxAcceleration)
+    {
+        Acceleration = Acceleration.GetSafeNormal() * MaxAcceleration;
+        CurrentVelocity = ((CurrentLocation - LastPosition) / DeltaTime) + (Acceleration * DeltaTime);
+    }
+
+    // Update position
+    LastPosition = CurrentLocation;
+    FVector NewLocation = CurrentLocation + (CurrentVelocity * DeltaTime);
+    SetActorLocation(NewLocation);
+}
+
 void AEnemySpaceship::UpdateBehaviorState()
 {
-    // Override random behavior changes when distance requires specific behavior
+    if (!PlayerPawn) return;
+
+    FVector DesiredPosition = CalculatePositionAwayFromOtherEnemies();
+    FVector PlayerVelocity = PlayerPawn->GetVelocity();
+    float PlayerSpeed = PlayerVelocity.Size();
+
+    float AggressionRoll = FMath::FRand();
+
     if (DistanceToPlayer < MinDistanceToPlayer)
     {
-        // Too close, retreat or strafe
-        CurrentBehaviorState = FMath::RandBool() ? EEnemyBehaviorState::Retreat : EEnemyBehaviorState::Strafe;
+        if (AggressionRoll < AggressionFactor * 0.3f)
+        {
+            CurrentBehaviorState = EEnemyBehaviorState::Attack;
+        }
+        else
+        {
+            CurrentBehaviorState = EEnemyBehaviorState::Retreat;
+        }
     }
     else if (DistanceToPlayer < AttackRange)
     {
-        // Within attack range but not too close, either attack or strafe
-        if (CurrentBehaviorState != EEnemyBehaviorState::Attack &&
-            CurrentBehaviorState != EEnemyBehaviorState::Strafe)
+        // Increased chance of flanking
+        if (AggressionRoll < AggressionFactor * FlankingFrequency)
         {
-            CurrentBehaviorState = FMath::RandBool() ? EEnemyBehaviorState::Attack : EEnemyBehaviorState::Strafe;
+            // Only change to flank state if we're not already flanking
+            // This prevents unnecessary state changes that could cause position jumps
+            if (CurrentBehaviorState != EEnemyBehaviorState::Flank)
+            {
+                CurrentBehaviorState = EEnemyBehaviorState::Flank;
+                bIsFlankingRight = FMath::RandBool();
+                bInitializedFlank = false;  // Will trigger new flank position calculation
+                LastFlankUpdateTime = GetWorld()->GetTimeSeconds();
+            }
+        }
+        else if (AggressionRoll < AggressionFactor * 0.8f)  // Increased from 0.7f
+        {
+            CurrentBehaviorState = EEnemyBehaviorState::Attack;
+        }
+        else
+        {
+            CurrentBehaviorState = EEnemyBehaviorState::Strafe;
+            StrafeDirection = FMath::RandBool() ? 1.0f : -1.0f;
         }
     }
     else
     {
-        // Too far, chase
         CurrentBehaviorState = EEnemyBehaviorState::Chase;
     }
 }
 
+
+// Add this new function to handle enemy spacing
+FVector AEnemySpaceship::CalculatePositionAwayFromOtherEnemies()
+{
+    FVector AveragePosition = GetActorLocation();
+    int32 EnemyCount = 0;
+
+    // Find all enemy spaceships
+    TArray<AActor*> FoundEnemies;
+    UGameplayStatics::GetAllActorsOfClass(GetWorld(), AEnemySpaceship::StaticClass(), FoundEnemies);
+
+    for (AActor* Enemy : FoundEnemies)
+    {
+        if (Enemy != this)
+        {
+            float Distance = FVector::Dist(GetActorLocation(), Enemy->GetActorLocation());
+            if (Distance < MinDistanceToOtherEnemies)
+            {
+                AveragePosition += Enemy->GetActorLocation();
+                EnemyCount++;
+            }
+        }
+    }
+
+    if (EnemyCount > 0)
+    {
+        AveragePosition /= (EnemyCount + 1);
+        // Calculate position away from the cluster
+        FVector AwayFromCrowd = GetActorLocation() - AveragePosition;
+        AwayFromCrowd.Normalize();
+        return GetActorLocation() + (AwayFromCrowd * MinDistanceToOtherEnemies);
+    }
+
+    return GetActorLocation();
+}
+
+FVector AEnemySpaceship::CalculateFlankPosition()
+{
+    if (!PlayerPawn) return GetActorLocation();
+
+    // Get player's forward vector and velocity
+    FVector PlayerForward = PlayerPawn->GetActorForwardVector();
+    FVector PlayerVelocity = PlayerPawn->GetVelocity();
+
+    // Use player's velocity direction if they're moving, otherwise use their forward vector
+    FVector BaseDirection = PlayerVelocity.SizeSquared() > 100.0f ?
+        PlayerVelocity.GetSafeNormal() : PlayerForward;
+
+    // Calculate the flanking angle
+    float AngleRadians = FMath::DegreesToRadians(FlankAngle * (bIsFlankingRight ? 1.0f : -1.0f));
+
+    // Rotate the vector for flanking
+    FVector FlankDirection = BaseDirection.RotateAngleAxis(AngleRadians, FVector::UpVector);
+
+    // Calculate the final position with some variation in distance
+    float VariedDistance = FlankDistance * FMath::RandRange(0.8f, 1.2f);
+    return PlayerPawn->GetActorLocation() + (FlankDirection * VariedDistance);
+}
+
+void AEnemySpaceship::PerformFlank(float DeltaTime)
+{
+    if (!PlayerPawn) return;
+
+    float CurrentTime = GetWorld()->GetTimeSeconds();
+
+    // Initialize flank position if needed
+    if (!bInitializedFlank)
+    {
+        CurrentFlankTarget = CalculateFlankPosition();
+        bInitializedFlank = true;
+        LastFlankUpdateTime = CurrentTime;
+    }
+
+    // Update flank position periodically
+    if (CurrentTime - LastFlankUpdateTime >= FlankPositionUpdateInterval)
+    {
+        // Smoothly transition to new flank position
+        FVector NewFlankPosition = CalculateFlankPosition();
+        CurrentFlankTarget = FMath::VInterpTo(
+            CurrentFlankTarget,
+            NewFlankPosition,
+            DeltaTime,
+            2.0f  // Interpolation speed
+        );
+
+        LastFlankUpdateTime = CurrentTime;
+
+        // Occasionally switch flanking direction
+        if (FMath::FRand() < 0.3f)  // 30% chance to switch direction
+        {
+            bIsFlankingRight = !bIsFlankingRight;
+        }
+    }
+
+    // Calculate distance to current flank target
+    float DistanceToFlankTarget = FVector::Dist(GetActorLocation(), CurrentFlankTarget);
+
+    // Calculate movement speed based on distance
+    float CurrentFlankSpeed = FMath::Min(FlankingSpeed, DistanceToFlankTarget * 2.0f);
+
+    // Move towards flank position
+    FVector DirectionToFlank = (CurrentFlankTarget - GetActorLocation()).GetSafeNormal();
+    FVector TargetPosition = GetActorLocation() + DirectionToFlank * CurrentFlankSpeed * DeltaTime;
+
+    // Use smooth movement
+    SmoothMove(TargetPosition, DeltaTime);
+
+    // Face the player while flanking
+    FVector DirectionToPlayer = (PlayerPawn->GetActorLocation() - GetActorLocation()).GetSafeNormal();
+    FRotator TargetRotation = DirectionToPlayer.Rotation();
+    FRotator NewRotation = FMath::RInterpTo(GetActorRotation(), TargetRotation, DeltaTime, InterpSpeed);
+    SetActorRotation(NewRotation);
+
+    // Fire more frequently while flanking
+    if (bCanFire && DistanceToPlayer < AttackRange)
+    {
+        Fire();
+    }
+}
+
 void AEnemySpaceship::ChangeBehaviorState()
 {
     // Random chance to change behavior state
@@ -154,18 +350,21 @@ void AEnemySpaceship::PerformChase(float DeltaTime)
     if (PlayerPawn)
     {
         // Calculate direction to player
-        FVector Direction = (PlayerPawn->GetActorLocation() - GetActorLocation()).GetSafeNormal();
+        FVector DirectionToPlayer = (PlayerPawn->GetActorLocation() - GetActorLocation()).GetSafeNormal();
 
-        // Move towards the player
-        FVector NewLocation = GetActorLocation() + Direction * MovementSpeed * DeltaTime;
-        SetActorLocation(NewLocation);
+        // Calculate target position
+        FVector TargetPosition = GetActorLocation() + DirectionToPlayer * MovementSpeed * DeltaTime;
 
-        // Face towards the player
-        FRotator NewRotation = Direction.Rotation();
+        // Use smooth movement
+        SmoothMove(TargetPosition, DeltaTime);
+
+        // Smoothly rotate to face player
+        FRotator TargetRotation = DirectionToPlayer.Rotation();
+        FRotator NewRotation = FMath::RInterpTo(GetActorRotation(), TargetRotation, DeltaTime, InterpSpeed);
         SetActorRotation(NewRotation);
 
-        // If within attack range, fire occasionally
-        if (DistanceToPlayer < AttackRange && bCanFire && FMath::FRand() < 0.3f)
+        // Fire if within range
+        if (DistanceToPlayer < AttackRange && bCanFire)
         {
             Fire();
         }
@@ -193,24 +392,32 @@ void AEnemySpaceship::PerformRetreat(float DeltaTime)
 {
     if (PlayerPawn)
     {
-        // Move away from player
-        FVector Direction = (GetActorLocation() - PlayerPawn->GetActorLocation()).GetSafeNormal();
-        FVector NewLocation = GetActorLocation() + Direction * MovementSpeed * DeltaTime;
-        SetActorLocation(NewLocation);
+        // Calculate ideal retreat position
+        FVector DirectionFromPlayer = (GetActorLocation() - PlayerPawn->GetActorLocation()).GetSafeNormal();
+        FVector DesiredPosition = PlayerPawn->GetActorLocation() + (DirectionFromPlayer * OptimalCombatDistance);
 
-        // Keep facing the player while backing up
-        FVector FaceDirection = (PlayerPawn->GetActorLocation() - GetActorLocation()).GetSafeNormal();
-        FRotator NewRotation = FaceDirection.Rotation();
+        // Consider other enemies
+        FVector AvoidCrowdingPosition = CalculatePositionAwayFromOtherEnemies();
+        FVector FinalTargetPosition = FMath::Lerp(DesiredPosition, AvoidCrowdingPosition, 0.3f);
+
+        // Use smooth movement
+        SmoothMove(FinalTargetPosition, DeltaTime);
+
+        // Smoothly rotate to face player
+        FVector DirectionToPlayer = (PlayerPawn->GetActorLocation() - GetActorLocation()).GetSafeNormal();
+        FRotator TargetRotation = DirectionToPlayer.Rotation();
+        FRotator NewRotation = FMath::RInterpTo(GetActorRotation(), TargetRotation, DeltaTime, InterpSpeed);
         SetActorRotation(NewRotation);
 
-        // Fire while retreating
-        if (bCanFire)
+        // Fire while retreating if in range
+        if (bCanFire && DistanceToPlayer < AttackRange)
         {
             Fire();
         }
     }
 }
 
+
 void AEnemySpaceship::PerformStrafe(float DeltaTime)
 {
     if (PlayerPawn)
@@ -218,19 +425,44 @@ void AEnemySpaceship::PerformStrafe(float DeltaTime)
         // Calculate direction to player
         FVector DirectionToPlayer = (PlayerPawn->GetActorLocation() - GetActorLocation()).GetSafeNormal();
 
-        // Calculate strafe direction (perpendicular to direction to player)
+        // Calculate ideal combat distance
+        float CurrentDistance = DistanceToPlayer;
+        float DistanceAdjustment = 0.0f;
+
+        if (CurrentDistance < OptimalCombatDistance)
+        {
+            DistanceAdjustment = -1.0f; // Move away
+        }
+        else if (CurrentDistance > OptimalCombatDistance + 200.0f)
+        {
+            DistanceAdjustment = 1.0f; // Move closer
+        }
+
+        // Calculate strafe direction
         FVector StrafeVector = FVector::CrossProduct(DirectionToPlayer, FVector::UpVector) * StrafeDirection;
 
-        // Move sideways while maintaining distance
-        FVector NewLocation = GetActorLocation() + StrafeVector * StrafeSpeed * DeltaTime;
-        SetActorLocation(NewLocation);
+        // Calculate target position
+        FVector DistanceAdjustmentVector = DirectionToPlayer * DistanceAdjustment * MovementSpeed * 0.5f;
+        FVector StrafeMovement = StrafeVector * StrafeSpeed;
+        FVector DesiredMovement = (StrafeMovement + DistanceAdjustmentVector) * DeltaTime;
+
+        // Get position avoiding other enemies
+        FVector CrowdAvoidancePosition = CalculatePositionAwayFromOtherEnemies();
+
+        // Blend between desired movement and crowd avoidance
+        FVector TargetPosition = GetActorLocation() + DesiredMovement;
+        FVector FinalTargetPosition = FMath::Lerp(TargetPosition, CrowdAvoidancePosition, 0.3f);
+
+        // Use smooth movement
+        SmoothMove(FinalTargetPosition, DeltaTime);
 
         // Face towards the player
-        FRotator NewRotation = DirectionToPlayer.Rotation();
+        FRotator TargetRotation = DirectionToPlayer.Rotation();
+        FRotator NewRotation = FMath::RInterpTo(GetActorRotation(), TargetRotation, DeltaTime, InterpSpeed);
         SetActorRotation(NewRotation);
 
-        // Fire while strafing
-        if (bCanFire)
+        // Fire while strafing if in range
+        if (bCanFire && DistanceToPlayer < AttackRange)
         {
             Fire();
         }
@@ -239,12 +471,7 @@ void AEnemySpaceship::PerformStrafe(float DeltaTime)
 
 void AEnemySpaceship::Fire()
 {
-    if (!ProjectileClass)
-    {
-        if (GEngine)
-            GEngine->AddOnScreenDebugMessage(-1, 2.0f, FColor::Red, TEXT("Enemy ProjectileClass not set!"));
-        return;
-    }
+    if (!ProjectileClass) return;
 
     UWorld* World = GetWorld();
     if (World)
@@ -252,9 +479,11 @@ void AEnemySpaceship::Fire()
         FVector SpawnLocation = ProjectileSpawnPoint->GetComponentLocation();
         FRotator SpawnRotation = GetActorRotation();
 
-        // Add slight randomness to rotation for less perfect aim
-        float RandPitch = FMath::RandRange(-5.0f, 5.0f);
-        float RandYaw = FMath::RandRange(-5.0f, 5.0f);
+        // Less random spread during flanking for more accurate shots
+        float SpreadMultiplier = (CurrentBehaviorState == EEnemyBehaviorState::Flank) ? 0.9f : 1.0f;
+        float RandPitch = FMath::RandRange(-5.0f, 5.0f) * SpreadMultiplier;
+        float RandYaw = FMath::RandRange(-5.0f, 5.0f) * SpreadMultiplier;
+
         SpawnRotation.Pitch += RandPitch;
         SpawnRotation.Yaw += RandYaw;
 
@@ -262,7 +491,6 @@ void AEnemySpaceship::Fire()
         SpawnParams.Owner = this;
         SpawnParams.Instigator = GetInstigator();
 
-        // Spawn the projectile using EnemyProjectile class
         AEnemyProjectile* Projectile = World->SpawnActor<AEnemyProjectile>(
             ProjectileClass,
             SpawnLocation,
@@ -270,12 +498,6 @@ void AEnemySpaceship::Fire()
             SpawnParams
         );
 
-        if (Projectile)
-        {
-            if (GEngine)
-                GEngine->AddOnScreenDebugMessage(-1, 0.5f, FColor::Yellow, TEXT("Enemy Fired!"));
-        }
-
         // Start fire rate timer
         bCanFire = false;
         GetWorldTimerManager().SetTimer(FireTimerHandle, this, &AEnemySpaceship::ResetFire, FireRate, false);
@@ -287,6 +509,57 @@ void AEnemySpaceship::ResetFire()
     bCanFire = true;
 }
 
+void AEnemySpaceship::InitializeDynamicMaterial()
+{
+    if (EnemyMesh)
+    {
+        // Store the original material
+        OriginalMaterial = EnemyMesh->GetMaterial(0);
+
+        if (OriginalMaterial)
+        {
+            // Create dynamic material instance only once
+            DynamicMaterialInstance = UMaterialInstanceDynamic::Create(OriginalMaterial, this);
+            if (DynamicMaterialInstance)
+            {
+                // Apply the dynamic material instance to the mesh
+                EnemyMesh->SetMaterial(0, DynamicMaterialInstance);
+
+                // Initialize flash color to transparent
+                DynamicMaterialInstance->SetVectorParameterValue("FlashColor", FLinearColor(0.0f, 0.0f, 0.0f, 0.0f));
+            }
+        }
+    }
+}
+
+void AEnemySpaceship::ApplyDamageFlash()
+{
+    // Only set the flash color if we have a valid dynamic material instance
+    if (DynamicMaterialInstance)
+    {
+        // Set the flash color
+        DynamicMaterialInstance->SetVectorParameterValue("FlashColor", DamageFlashColor);
+
+        // Set timer to reset the flash
+        GetWorldTimerManager().SetTimer(
+            DamageFlashTimerHandle,
+            this,
+            &AEnemySpaceship::ResetDamageFlash,
+            DamageFlashDuration,
+            false
+        );
+    }
+}
+
+void AEnemySpaceship::ResetDamageFlash()
+{
+    // Reset the flash color only if we have a valid dynamic material instance
+    if (DynamicMaterialInstance)
+    {
+        DynamicMaterialInstance->SetVectorParameterValue("FlashColor", FLinearColor(0.0f, 0.0f, 0.0f, 0.0f));
+    }
+}
+
 float AEnemySpaceship::TakeDamage(float DamageAmount, FDamageEvent const& DamageEvent,
     AController* EventInstigator, AActor* DamageCauser)
 {
@@ -301,6 +574,9 @@ float AEnemySpaceship::TakeDamage(float DamageAmount, FDamageEvent const& Damage
             FString::Printf(TEXT("Enemy Hit! Health: %f"), CurrentHealth));
     }
 
+    // Apply visual damage effects
+    ApplyDamageFlash();
+
     // When damaged, prefer retreat or strafe behaviors temporarily
     if (FMath::RandBool())
     {
@@ -338,6 +614,11 @@ void AEnemySpaceship::Die()
         GetActorLocation()
     );
 
+    if (ASpaceShooterGameMode* GameMode = Cast<ASpaceShooterGameMode>(UGameplayStatics::GetGameMode(GetWorld())))
+    {
+        GameMode->IncrementKillCount();
+    }
+
     // Destroy the enemy
     Destroy();
 }

Source/MyProject3/EnemySpaceship.h

@@ -11,7 +11,8 @@ enum class EEnemyBehaviorState : uint8
     Chase,      // Actively pursue the player
     Attack,     // Stop and shoot at the player
     Retreat,    // Move away from player when too close
-    Strafe      // Move sideways while attacking
+    Strafe,      // Move sideways while attacking
+    Flank       // Execute flanking maneuver
 };
 
 UCLASS()
@@ -32,17 +33,45 @@ protected:
     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Combat")
     USceneComponent* ProjectileSpawnPoint;
 
+    // Add interpolation speed for smooth movement
     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
-    float MovementSpeed = 500.0f;
+    float InterpSpeed = 3.0f;
+
+    // Add max acceleration to prevent sudden movements
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
+    float MaxAcceleration = 2000.0f;
 
     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
-    float AttackRange = 1500.0f;
+    float MovementSpeed = 1200.0f;
 
     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
-    float MinDistanceToPlayer = 500.0f;
+    float FlankingSpeed = 1200.0f;  // Even faster during flanking
 
     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
-    float StrafeSpeed = 300.0f;
+    float FlankAngle = 60.0f;       // Angle for flanking maneuver
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
+    float FlankDistance = 2000.0f;   // Distance to maintain during flanking
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
+    float FlankPositionUpdateInterval = 1.0f;  // How often to update flank position
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
+    float AttackRange = 4000.0f;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
+    float MinDistanceToPlayer = 1500.0f;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
+    float StrafeSpeed = 500.0f;
+
+    // Add new property for minimum distance to other enemies
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
+    float MinDistanceToOtherEnemies = 800.0f;
+
+    // Add new property for optimal combat distance
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
+    float OptimalCombatDistance = 2500.0f;
 
     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Combat")
     float MaxHealth = 100.0f;
@@ -74,6 +103,26 @@ protected:
     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "AI")
     float StateChangeChance = 0.3f;
 
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "AI")
+    float AggressionFactor = 0.7f;   // Higher values make the enemy more likely to choose aggressive actions
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "AI")
+    float FlankingFrequency = 0.6f;  // Increased chance of flanking (was 0.4f)
+
+    UPROPERTY()
+    UMaterialInterface* OriginalMaterial;
+
+    UPROPERTY()
+    UMaterialInstanceDynamic* DynamicMaterialInstance;
+
+    UPROPERTY(EditAnywhere, Category = "Effects")
+    FLinearColor DamageFlashColor = FLinearColor(1.0f, 0.0f, 0.0f, 1.0f);
+
+    UPROPERTY(EditAnywhere, Category = "Effects")
+    float DamageFlashDuration = 0.1f;
+
+    FTimerHandle DamageFlashTimerHandle;
+
 public:
     virtual void Tick(float DeltaTime) override;
 
@@ -105,9 +154,32 @@ private:
     void ChangeBehaviorState();
     void Die();
 
+	void SmoothMove(const FVector& TargetLocation, float DeltaTime);
+
     // AI behavior implementation functions
     void PerformChase(float DeltaTime);
     void PerformAttack(float DeltaTime);
     void PerformRetreat(float DeltaTime);
     void PerformStrafe(float DeltaTime);
+	void PerformFlank(float DeltaTime);
+
+    FVector CalculatePositionAwayFromOtherEnemies();
+	FVector CalculateFlankPosition();
+
+    FVector CurrentVelocity;
+    FVector TargetVelocity;
+    FVector LastPosition;
+
+    FVector FlankPosition;
+    float FlankTimer;
+    bool bIsFlankingRight;
+    FTimerHandle FlankUpdateTimer;
+
+    float LastFlankUpdateTime;
+    FVector CurrentFlankTarget;
+    bool bInitializedFlank;
+
+    void InitializeDynamicMaterial();
+    void ApplyDamageFlash();
+    void ResetDamageFlash();
 };

Source/MyProject3/SpaceShooterGameMode.cpp

@@ -41,6 +41,10 @@ ASpaceShooterGameMode::ASpaceShooterGameMode()
     {
         GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Yellow, TEXT("GameMode Constructor"));
     }
+
+    KillCount = 0;
+    bIsGameOver = false;
+    RemainingTime = GameDuration;
 }
 
 void ASpaceShooterGameMode::StartPlay()
@@ -60,6 +64,9 @@ void ASpaceShooterGameMode::StartPlay()
     {
         GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Green, TEXT("GameMode StartPlay"));
     }
+
+    RemainingTime = GameDuration;
+    GetWorldTimerManager().SetTimer(GameTimerHandle, this, &ASpaceShooterGameMode::UpdateGameTimer, 1.0f, true);
 }
 
 void ASpaceShooterGameMode::Tick(float DeltaTime)
@@ -99,12 +106,11 @@ void ASpaceShooterGameMode::SpawnEnemy()
         switch (CurrentPattern)
         {
         case ESpawnPattern::Random:
-            // Spawn a single enemy at a random edge location
         {
             UWorld* World = GetWorld();
             if (World && EnemyClass)
             {
-                FVector SpawnLocation = GetScreenEdgeSpawnLocation();
+                FVector SpawnLocation = GetRandomSpawnLocation();
                 FRotator SpawnRotation = FRotator::ZeroRotator;
                 FActorSpawnParameters SpawnParams;
                 SpawnParams.SpawnCollisionHandlingOverride =
@@ -142,32 +148,25 @@ void ASpaceShooterGameMode::SpawnEnemyWave()
     if (!World || !EnemyClass)
         return;
 
-    // Choose a random direction for the wave
-    float WaveAngle = FMath::RandRange(0.0f, 2.0f * PI);
-    FVector2D EdgeDirection(FMath::Cos(WaveAngle), FMath::Sin(WaveAngle));
-
     // Get player location for facing direction
     FVector PlayerLocation = GetPlayerLocation();
 
-    // Get screen bounds
-    TArray<FVector2D> ScreenBounds = GetScreenBounds();
-    float ScreenWidth = ScreenBounds[1].X - ScreenBounds[0].X;
+    // Choose a random angle for the wave
+    float WaveAngle = FMath::RandRange(0.0f, 2.0f * PI);
+    FVector2D BaseDirection(FMath::Cos(WaveAngle), FMath::Sin(WaveAngle));
 
-    // Create a line of enemies perpendicular to the direction
-    FVector2D PerpDirection(-EdgeDirection.Y, EdgeDirection.X);
+    // Create a perpendicular direction for the wave line
+    FVector2D PerpDirection(-BaseDirection.Y, BaseDirection.X);
 
-    // Spawn wave of enemies - increased distance from 2000 to MinimumSpawnDistance
+    // Spawn wave of enemies
     for (int32 i = 0; i < WaveSize; i++)
     {
-        FVector ProposedLocation;
-        ProposedLocation.X = PlayerLocation.X + (EdgeDirection.X * MinimumSpawnDistance) +
-            (PerpDirection.X * (i - WaveSize / 2) * FormationSpacing);
-        ProposedLocation.Y = PlayerLocation.Y + (EdgeDirection.Y * MinimumSpawnDistance) +
-            (PerpDirection.Y * (i - WaveSize / 2) * FormationSpacing);
-        ProposedLocation.Z = PlayerLocation.Z;
+        // Calculate base spawn position
+        FVector BaseSpawnPos = PlayerLocation + FVector(BaseDirection.X, BaseDirection.Y, 0) * MinimumSpawnDistance;
 
-        // Ensure the spawn location is far enough from the player
-        FVector SpawnLocation = EnsureMinimumSpawnDistance(ProposedLocation, PlayerLocation);
+        // Offset along the wave line
+        FVector Offset = FVector(PerpDirection.X, PerpDirection.Y, 0) * (i - WaveSize / 2) * FormationSpacing;
+        FVector SpawnLocation = BaseSpawnPos + Offset;
 
         FRotator SpawnRotation = FRotator::ZeroRotator;
         FActorSpawnParameters SpawnParams;
@@ -183,7 +182,6 @@ void ASpaceShooterGameMode::SpawnEnemyWave()
         }
     }
 
-    // Increase wave counter and possibly switch back to random
     CurrentWaveCount++;
     if (CurrentWaveCount >= 3)
     {
@@ -194,6 +192,14 @@ void ASpaceShooterGameMode::SpawnEnemyWave()
 
 void ASpaceShooterGameMode::SpawnEnemyFormation()
 {
+    // Count current enemies
+    TArray<AActor*> FoundEnemies;
+    UGameplayStatics::GetAllActorsOfClass(GetWorld(), AEnemySpaceship::StaticClass(), FoundEnemies);
+
+    // Only spawn if we haven't reached the maximum
+    if (FoundEnemies.Num() < MaxEnemies)
+    {
+
         UWorld* World = GetWorld();
         if (!World || !EnemyClass)
             return;
@@ -284,6 +290,7 @@ void ASpaceShooterGameMode::SpawnEnemyFormation()
         // Switch back to random pattern after a formation spawn
         CurrentPattern = ESpawnPattern::Random;
     }
+}
 
 void ASpaceShooterGameMode::SpawnEnemyFlanking()
 {
@@ -291,10 +298,9 @@ void ASpaceShooterGameMode::SpawnEnemyFlanking()
     if (!World || !EnemyClass)
         return;
 
-    // Get player location
     FVector PlayerLocation = GetPlayerLocation();
 
-    // Spawn enemies from multiple sides (usually 2-3 sides)
+    // Spawn enemies from multiple sides (2-3 sides)
     int32 NumSides = FMath::RandRange(2, 3);
     float BaseAngle = FMath::RandRange(0.0f, 2.0f * PI);
 
@@ -302,7 +308,6 @@ void ASpaceShooterGameMode::SpawnEnemyFlanking()
     {
         // Calculate angle for this side
         float Angle = BaseAngle + (Side * (2.0f * PI / NumSides));
-        FVector2D Direction(FMath::Cos(Angle), FMath::Sin(Angle));
 
         // Spawn 1-2 enemies from this side
         int32 NumEnemies = FMath::RandRange(1, 2);
@@ -311,13 +316,10 @@ void ASpaceShooterGameMode::SpawnEnemyFlanking()
         {
             // Add some variation to the spawn position
             float OffsetAngle = Angle + FMath::RandRange(-0.3f, 0.3f);
-            FVector2D OffsetDir(FMath::Cos(OffsetAngle), FMath::Sin(OffsetAngle));
+            FVector Direction(FMath::Cos(OffsetAngle), FMath::Sin(OffsetAngle), 0.0f);
 
-            // Increased from 2000 to MinimumSpawnDistance
-            FVector ProposedLocation = PlayerLocation + FVector(OffsetDir.X, OffsetDir.Y, 0) * MinimumSpawnDistance;
-
-            // Ensure the spawn location is far enough from the player
-            FVector SpawnLocation = EnsureMinimumSpawnDistance(ProposedLocation, PlayerLocation);
+            // Calculate spawn position
+            FVector SpawnLocation = PlayerLocation + (Direction * (MinimumSpawnDistance + FMath::RandRange(0.0f, 300.0f)));
 
             FRotator SpawnRotation = FRotator::ZeroRotator;
             FActorSpawnParameters SpawnParams;
@@ -334,107 +336,28 @@ void ASpaceShooterGameMode::SpawnEnemyFlanking()
         }
     }
 
-    // Return to random spawning
     CurrentPattern = ESpawnPattern::Random;
 }
 
-FVector ASpaceShooterGameMode::GetScreenEdgeSpawnLocation()
+FVector ASpaceShooterGameMode::GetRandomSpawnLocation()
 {
     FVector PlayerLocation = GetPlayerLocation();
-    TArray<FVector2D> ScreenBounds = GetScreenBounds();
 
-    // Decide which edge to spawn from (0 = top, 1 = right, 2 = bottom, 3 = left)
-    int32 Edge = FMath::RandRange(0, 3);
-
-    FVector SpawnLocation;
-    float RandomPos;
-
-    // Increased margin to spawn farther from screen edges
-    float ExtendedMargin = ScreenSpawnMargin + 500.0f;
-
-    switch (Edge)
-    {
-    case 0: // Top edge
-        RandomPos = FMath::RandRange(ScreenBounds[0].X, ScreenBounds[1].X);
-        SpawnLocation = FVector(RandomPos, ScreenBounds[0].Y - ExtendedMargin, PlayerLocation.Z);
-        break;
-
-    case 1: // Right edge
-        RandomPos = FMath::RandRange(ScreenBounds[0].Y, ScreenBounds[1].Y);
-        SpawnLocation = FVector(ScreenBounds[1].X + ExtendedMargin, RandomPos, PlayerLocation.Z);
-        break;
-
-    case 2: // Bottom edge
-        RandomPos = FMath::RandRange(ScreenBounds[0].X, ScreenBounds[1].X);
-        SpawnLocation = FVector(RandomPos, ScreenBounds[1].Y + ExtendedMargin, PlayerLocation.Z);
-        break;
-
-    case 3: // Left edge
-        RandomPos = FMath::RandRange(ScreenBounds[0].Y, ScreenBounds[1].Y);
-        SpawnLocation = FVector(ScreenBounds[0].X - ExtendedMargin, RandomPos, PlayerLocation.Z);
-        break;
-    }
-
-    // Ensure the spawn location is far enough from the player
-    return EnsureMinimumSpawnDistance(SpawnLocation, PlayerLocation);
-}
-
-FVector ASpaceShooterGameMode::GetSpawnZoneLocation()
-{
-    // If no spawn zones are defined, return a screen edge location
-    if (SpawnZones.Num() == 0)
-    {
-        return GetScreenEdgeSpawnLocation();
-    }
-
-    // Filter active spawn zones
-    TArray<FSpawnZone> ActiveZones;
-    float TotalWeight = 0.0f;
-
-    for (const FSpawnZone& Zone : SpawnZones)
-    {
-        if (Zone.bActive)
-        {
-            ActiveZones.Add(Zone);
-            TotalWeight += Zone.SpawnWeight;
-        }
-    }
-
-    // If no active zones, return screen edge
-    if (ActiveZones.Num() == 0)
-    {
-        return GetScreenEdgeSpawnLocation();
-    }
-
-    // Select a zone based on weight
-    float RandomWeight = FMath::RandRange(0.0f, TotalWeight);
-    float WeightSum = 0.0f;
-    FVector PlayerLocation = GetPlayerLocation();
-
-    for (const FSpawnZone& Zone : ActiveZones)
-    {
-        WeightSum += Zone.SpawnWeight;
-        if (RandomWeight <= WeightSum)
-        {
-            // Generate random point within this zone's radius
+    // Generate a random angle in radians
     float RandomAngle = FMath::RandRange(0.0f, 2.0f * PI);
-            float RandomRadius = FMath::RandRange(0.0f, Zone.Radius);
 
-            FVector SpawnOffset(
-                FMath::Cos(RandomAngle) * RandomRadius,
-                FMath::Sin(RandomAngle) * RandomRadius,
+    // Create a direction vector from the random angle
+    FVector Direction(
+        FMath::Cos(RandomAngle),
+        FMath::Sin(RandomAngle),
         0.0f
     );
 
-            FVector ProposedLocation = Zone.Location + SpawnOffset;
+    // Use the minimum spawn distance plus some random additional distance
+    float SpawnDistance = MinimumSpawnDistance + FMath::RandRange(0.0f, 500.0f);
 
-            // Ensure the spawn location is far enough from the player
-            return EnsureMinimumSpawnDistance(ProposedLocation, PlayerLocation);
-        }
-    }
-
-    // Fallback
-    return GetScreenEdgeSpawnLocation();
+    // Calculate the spawn position
+    return PlayerLocation + (Direction * SpawnDistance);
 }
 
 void ASpaceShooterGameMode::UpdateDifficulty()
@@ -465,48 +388,6 @@ FVector ASpaceShooterGameMode::GetPlayerLocation()
     return FVector::ZeroVector;
 }
 
-TArray<FVector2D> ASpaceShooterGameMode::GetScreenBounds()
-{
-    TArray<FVector2D> Bounds;
-    FVector2D ScreenMin, ScreenMax;
-
-    // Get player controller for screen info
-    APlayerController* PlayerController = UGameplayStatics::GetPlayerController(GetWorld(), 0);
-    if (!PlayerController)
-    {
-        // Fallback values if no controller
-        Bounds.Add(FVector2D(-2000, -2000));
-        Bounds.Add(FVector2D(2000, 2000));
-        return Bounds;
-    }
-
-    // Get viewport size
-    int32 ViewportSizeX, ViewportSizeY;
-    PlayerController->GetViewportSize(ViewportSizeX, ViewportSizeY);
-
-    // Get world location of screen corners
-    FVector WorldLocation, WorldDirection;
-
-    // Top-Left corner
-    PlayerController->DeprojectScreenPositionToWorld(0, 0, WorldLocation, WorldDirection);
-    ScreenMin = FVector2D(WorldLocation.X, WorldLocation.Y);
-
-    // Bottom-Right corner
-    PlayerController->DeprojectScreenPositionToWorld(ViewportSizeX, ViewportSizeY, WorldLocation, WorldDirection);
-    ScreenMax = FVector2D(WorldLocation.X, WorldLocation.Y);
-
-    // Add some margin
-    ScreenMin.X -= 200;
-    ScreenMin.Y -= 200;
-    ScreenMax.X += 200;
-    ScreenMax.Y += 200;
-
-    Bounds.Add(ScreenMin);
-    Bounds.Add(ScreenMax);
-
-    return Bounds;
-}
-
 void ASpaceShooterGameMode::RotateTowardsPlayer(AEnemySpaceship* Enemy, const FVector& PlayerLocation)
 {
     if (!Enemy)
@@ -541,3 +422,47 @@ FVector ASpaceShooterGameMode::EnsureMinimumSpawnDistance(const FVector& Propose
     Direction.Normalize();
     return PlayerLocation + Direction * MinimumSpawnDistance;
 }
+
+void ASpaceShooterGameMode::UpdateGameTimer()
+{
+    if (bIsGameOver) return;
+
+    RemainingTime -= 1.0f;
+
+    if (RemainingTime <= 0.0f)
+    {
+        EndGame();
+    }
+}
+
+void ASpaceShooterGameMode::EndGame()
+{
+    bIsGameOver = true;
+
+    // Stop enemy spawning
+    GetWorldTimerManager().ClearTimer(EnemySpawnTimer);
+
+    // Clear existing enemies
+    TArray<AActor*> FoundEnemies;
+    UGameplayStatics::GetAllActorsOfClass(GetWorld(), AEnemySpaceship::StaticClass(), FoundEnemies);
+    for (AActor* Enemy : FoundEnemies)
+    {
+        Enemy->Destroy();
+    }
+
+    // Pause the game
+    UGameplayStatics::SetGamePaused(GetWorld(), true);
+}
+
+void ASpaceShooterGameMode::IncrementKillCount()
+{
+    if (!bIsGameOver)
+    {
+        KillCount++;
+    }
+}
+
+void ASpaceShooterGameMode::RestartGame()
+{
+    UGameplayStatics::OpenLevel(this, FName(*GetWorld()->GetName()), false);
+}

Source/MyProject3/SpaceShooterGameMode.h

@@ -44,6 +44,13 @@ public:
     virtual void StartPlay() override;
     virtual void Tick(float DeltaTime) override;
 
+    void IncrementKillCount();
+    void RestartGame();
+    int32 GetKillCount() const { return KillCount; }
+    float GetRemainingTime() const { return RemainingTime; }
+	float GetGameDuration() const { return GameDuration; }
+    bool IsGameOver() const { return bIsGameOver; }
+
 protected:
     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Spawning")
     TSubclassOf<class AEnemySpaceship> EnemyClass;
@@ -78,6 +85,18 @@ protected:
     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Spawning|Difficulty")
     int32 DifficultyInterval = 30;
 
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Game Rules")
+    float GameDuration = 30.0f;  // 3 minutes default
+
+    UPROPERTY(BlueprintReadOnly, Category = "Game Stats")
+    int32 KillCount;
+
+    UPROPERTY(BlueprintReadOnly, Category = "Game Stats")
+    float RemainingTime;
+
+    UPROPERTY(BlueprintReadOnly, Category = "Game State")
+    bool bIsGameOver;
+
 private:
     FTimerHandle EnemySpawnTimer;
     FTimerHandle DifficultyTimer;
@@ -90,13 +109,15 @@ private:
     void SpawnEnemyWave();
     void SpawnEnemyFormation();
     void SpawnEnemyFlanking();
-    FVector GetScreenEdgeSpawnLocation();
-    FVector GetSpawnZoneLocation();
+	FVector GetRandomSpawnLocation();
     void UpdateDifficulty();
     FVector GetPlayerLocation();
-    TArray<FVector2D> GetScreenBounds();
     void RotateTowardsPlayer(AEnemySpaceship* Enemy, const FVector& PlayerLocation);
 
     // New helper method to ensure minimum spawn distance
     FVector EnsureMinimumSpawnDistance(const FVector& ProposedLocation, const FVector& PlayerLocation);
+
+    void EndGame();
+    void UpdateGameTimer();
+    FTimerHandle GameTimerHandle;
 };

Source/MyProject3/SpaceShooterHUD.cpp

@@ -0,0 +1,280 @@
+#include "SpaceShooterHUD.h"
+#include "SpaceShooterGameMode.h"
+#include "Engine/Canvas.h"
+#include "Engine/Font.h"
+#include "SpaceshipPawn.h"
+#include "UObject/ConstructorHelpers.h"
+
+ASpaceShooterHUD::ASpaceShooterHUD()
+{
+    // Find and set the default font
+    static ConstructorHelpers::FObjectFinder<UFont> FontObj(TEXT("/Engine/EngineFonts/RobotoDistanceField"));
+    TextFont = FontObj.Object;
+    GameOverStartTime = 0.0f;
+}
+
+ASpaceshipPawn* ASpaceShooterHUD::GetPlayerPawn() const
+{
+    APlayerController* PC = GetWorld()->GetFirstPlayerController();
+    if (PC)
+    {
+        return Cast<ASpaceshipPawn>(PC->GetPawn());
+    }
+    return nullptr;
+}
+
+// Add this new function for drawing the bars
+void ASpaceShooterHUD::DrawStatusBars()
+{
+    if (!Canvas) return;
+
+    ASpaceshipPawn* PlayerPawn = GetPlayerPawn();
+    if (!PlayerPawn) return;
+
+    // Get the canvas size
+    const float ScreenWidth = Canvas->SizeX;
+    const float ScreenHeight = Canvas->SizeY;
+
+    // Calculate positions for the bars (top right corner)
+    float StartX = ScreenWidth - BarWidth - BarPadding;
+    float HealthY = BarPadding;
+    float ShieldY = HealthY + BarHeight + BarPadding;
+
+    // Get current health and shield values
+    float HealthPercent = PlayerPawn->GetCurrentHealth() / PlayerPawn->GetMaxHealth();
+    float ShieldPercent = PlayerPawn->GetCurrentShield() / PlayerPawn->GetMaxShield();
+
+    // Clamp values between 0 and 1
+    HealthPercent = FMath::Clamp(HealthPercent, 0.0f, 1.0f);
+    ShieldPercent = FMath::Clamp(ShieldPercent, 0.0f, 1.0f);
+
+    // Draw health bar background
+    FCanvasBoxItem HealthBG(FVector2D(StartX, HealthY), FVector2D(BarWidth, BarHeight));
+    HealthBG.SetColor(BackgroundBarColor);
+    Canvas->DrawItem(HealthBG);
+
+    // Draw health bar fill
+    FCanvasBoxItem HealthFill(FVector2D(StartX, HealthY), FVector2D(BarWidth * HealthPercent, BarHeight));
+    HealthFill.SetColor(HealthBarColor);
+    Canvas->DrawItem(HealthFill);
+
+    // Draw shield bar background
+    FCanvasBoxItem ShieldBG(FVector2D(StartX, ShieldY), FVector2D(BarWidth, BarHeight));
+    ShieldBG.SetColor(BackgroundBarColor);
+    Canvas->DrawItem(ShieldBG);
+
+    // Draw shield bar fill
+    FCanvasBoxItem ShieldFill(FVector2D(StartX, ShieldY), FVector2D(BarWidth * ShieldPercent, BarHeight));
+    ShieldFill.SetColor(ShieldBarColor);
+    Canvas->DrawItem(ShieldFill);
+
+    // Draw text labels
+    FString HealthText = FString::Printf(TEXT("Health: %.0f%%"), HealthPercent * 100);
+    FString ShieldText = FString::Printf(TEXT("Shield: %.0f%%"), ShieldPercent * 100);
+
+    // Draw text over the bars
+    DrawText(HealthText, FLinearColor::White, StartX + 5, HealthY + 2, TextFont, 0.8f);
+    DrawText(ShieldText, FLinearColor::White, StartX + 5, ShieldY + 2, TextFont, 0.8f);
+}
+
+void ASpaceShooterHUD::DrawHUD()
+{
+    Super::DrawHUD();
+
+    ASpaceShooterGameMode* GameMode = GetGameMode();
+    if (!GameMode) return;
+
+    APlayerController* PC = GetWorld()->GetFirstPlayerController();
+    bool bIsPaused = PC && PC->IsPaused();
+
+    if (!GameMode->IsGameOver() && bIsPaused)
+    {
+        DrawPauseScreen();
+    }
+    if (!GameMode->IsGameOver() && !bIsPaused)
+    {
+        DrawGameplayHUD();
+    }
+	if (GameMode->IsGameOver())
+    {
+        DrawGameOverScreen();
+    }
+}
+
+void ASpaceShooterHUD::DrawGameplayHUD()
+{
+    ASpaceShooterGameMode* GameMode = GetGameMode();
+    if (!GameMode) return;
+
+    // Draw timer
+    int32 Minutes = FMath::FloorToInt(GameMode->GetRemainingTime() / 60.0f);
+    int32 Seconds = FMath::FloorToInt(FMath::Fmod(GameMode->GetRemainingTime(), 60.0f));
+    FString TimeString = FString::Printf(TEXT("Time: %02d:%02d"), Minutes, Seconds);
+    DrawText(TimeString, FLinearColor::White, 50, 50, TextFont);
+
+    // Draw kill count
+    FString KillString = FString::Printf(TEXT("Kills: %d"), GameMode->GetKillCount());
+    DrawText(KillString, FLinearColor::White, 50, 100, TextFont);
+
+    // Draw status bars
+    DrawStatusBars();
+}
+
+void ASpaceShooterHUD::DrawPauseScreen()
+{
+    if (!Canvas) return;
+
+    // Draw semi-transparent dark overlay (this creates a "blur-like" effect)
+    FCanvasBoxItem BoxItem(FVector2D(0, 0), FVector2D(Canvas->SizeX, Canvas->SizeY));
+    BoxItem.SetColor(FLinearColor(0.0f, 0.0f, 0.0f, 0.75f));  // More opaque for better readability
+    Canvas->DrawItem(BoxItem);
+
+    // Draw "GAME PAUSED" text
+    FString PauseText = TEXT("GAME PAUSED");
+    float TextWidth, TextHeight;
+    GetTextSize(PauseText, TextWidth, TextHeight, TextFont, PauseTextScale);
+
+    // Center the text
+    float PosX = (Canvas->SizeX - TextWidth) * 0.5f;
+    float PosY = (Canvas->SizeY - TextHeight) * 0.5f;
+
+    // Draw text shadow for better visibility
+    DrawText(PauseText,
+        FLinearColor(0.0f, 0.0f, 0.0f, 1.0f),
+        PosX + 2.0f,
+        PosY + 2.0f,
+        TextFont,
+        PauseTextScale);
+
+    // Draw main text
+    DrawText(PauseText,
+        FLinearColor(1.0f, 1.0f, 1.0f, 1.0f),
+        PosX,
+        PosY,
+        TextFont,
+        PauseTextScale);
+
+    // Draw "Press ESC to Resume" text
+    FString ResumeText = TEXT("Press ESC to Resume");
+    GetTextSize(ResumeText, TextWidth, TextHeight, TextFont);
+
+    DrawText(ResumeText,
+        FLinearColor(1.0f, 1.0f, 1.0f, 0.8f),
+        (Canvas->SizeX - TextWidth) * 0.5f,
+        PosY + TextHeight * 3,
+        TextFont);
+}
+
+void ASpaceShooterHUD::DrawGameOverBackground()
+{
+    if (!Canvas) return;
+
+    // Draw a semi-transparent black background
+    FCanvasBoxItem BoxItem(FVector2D(0, 0), FVector2D(Canvas->SizeX, Canvas->SizeY));
+    BoxItem.SetColor(FLinearColor(0.0f, 0.0f, 0.0f, 0.7f));
+    Canvas->DrawItem(BoxItem);
+}
+
+void ASpaceShooterHUD::DrawGameOverText(const FString& Text, const FVector2D& Position, const FLinearColor& Color, float Scale)
+{
+    if (!Canvas || !TextFont) return;
+
+    float TextWidth, TextHeight;
+    GetTextSize(Text, TextWidth, TextHeight, TextFont, Scale);
+
+    // Draw text shadow
+    DrawText(Text, FLinearColor(0.0f, 0.0f, 0.0f, Color.A * 0.5f),
+        Position.X + 3.0f, Position.Y + 3.0f, TextFont, Scale);
+
+    // Draw main text
+    DrawText(Text, Color, Position.X, Position.Y, TextFont, Scale);
+}
+
+void ASpaceShooterHUD::DrawGameOverScreen()
+{
+    ASpaceShooterGameMode* GameMode = GetGameMode();
+    if (!GameMode || !Canvas) return;
+
+    // Initialize GameOverStartTime if needed
+    if (GameOverStartTime == 0.0f)
+    {
+        GameOverStartTime = GetWorld()->GetTimeSeconds();
+    }
+
+    // Draw darkened background
+    DrawGameOverBackground();
+
+    const FVector2D ViewportSize(Canvas->SizeX, Canvas->SizeY);
+    const float CurrentTime = GetWorld()->GetTimeSeconds();
+    const float TimeSinceGameOver = CurrentTime - GameOverStartTime;
+
+    // Calculate pulsating alpha for "GAME OVER" text
+    float PulsatingAlpha = FMath::Lerp(PulsateMinAlpha, PulsateMaxAlpha,
+        (FMath::Sin(TimeSinceGameOver * PulsateSpeed) + 1.0f) * 0.5f);
+
+    // Calculate vertical positions
+    float CenterY = ViewportSize.Y * 0.4f; // Slightly above center
+    float Spacing = 60.0f * GameOverScale;
+
+    // Draw "GAME OVER" with pulsating effect
+    FLinearColor PulsatingColor = GameOverTextColor;
+    PulsatingColor.A = PulsatingAlpha;
+
+    FString GameOverText = TEXT("GAME OVER");
+    float TextWidth, TextHeight;
+    GetTextSize(GameOverText, TextWidth, TextHeight, TextFont, GameOverScale);
+
+    DrawGameOverText(GameOverText,
+        FVector2D((ViewportSize.X - TextWidth) * 0.5f, CenterY),
+        PulsatingColor,
+        GameOverScale);
+
+    // Draw stats with scaling animations
+    const float StatsScale = 1.5f;
+    float StatsY = CenterY + Spacing;
+
+    // Time Survived
+    int32 TotalSeconds = FMath::RoundToInt(GameMode->GetGameDuration() - GameMode->GetRemainingTime());
+    int32 Minutes = TotalSeconds / 60;
+    int32 Seconds = TotalSeconds % 60;
+    FString TimeText = FString::Printf(TEXT("Time Survived: %02d:%02d"), Minutes, Seconds);
+    GetTextSize(TimeText, TextWidth, TextHeight, TextFont, StatsScale);
+    DrawGameOverText(TimeText,
+        FVector2D((ViewportSize.X - TextWidth) * 0.5f, StatsY),
+        StatsTextColor,
+        StatsScale);
+
+    // Kill Count
+    StatsY += Spacing * 0.7f;
+    FString KillText = FString::Printf(TEXT("Enemies Destroyed: %d"), GameMode->GetKillCount());
+    GetTextSize(KillText, TextWidth, TextHeight, TextFont, StatsScale);
+    DrawGameOverText(KillText,
+        FVector2D((ViewportSize.X - TextWidth) * 0.5f, StatsY),
+        StatsTextColor,
+        StatsScale);
+
+    // Calculate final score based on time and kills
+    int32 FinalScore = GameMode->GetKillCount() * 100 + TotalSeconds * 10;
+    StatsY += Spacing * 0.7f;
+    FString ScoreText = FString::Printf(TEXT("Final Score: %d"), FinalScore);
+    GetTextSize(ScoreText, TextWidth, TextHeight, TextFont, StatsScale);
+    DrawGameOverText(ScoreText,
+        FVector2D((ViewportSize.X - TextWidth) * 0.5f, StatsY),
+        StatsTextColor,
+        StatsScale);
+
+    // Draw restart text with bounce effect
+    float BounceOffset = FMath::Sin(TimeSinceGameOver * 3.0f) * 5.0f;
+    StatsY += Spacing * 1.2f;
+    FString RestartText = TEXT("Press R to Restart");
+    GetTextSize(RestartText, TextWidth, TextHeight, TextFont, StatsScale);
+    DrawGameOverText(RestartText,
+        FVector2D((ViewportSize.X - TextWidth) * 0.5f, StatsY + BounceOffset),
+        RestartTextColor,
+        StatsScale);
+}
+
+ASpaceShooterGameMode* ASpaceShooterHUD::GetGameMode() const
+{
+    return Cast<ASpaceShooterGameMode>(GetWorld()->GetAuthGameMode());
+}

Source/MyProject3/SpaceShooterHUD.h

@@ -0,0 +1,76 @@
+#pragma once
+
+#include "CoreMinimal.h"
+#include "GameFramework/HUD.h"
+#include "SpaceShooterHUD.generated.h"
+
+UCLASS()
+class MYPROJECT3_API ASpaceShooterHUD : public AHUD
+{
+    GENERATED_BODY()
+
+public:
+    ASpaceShooterHUD();
+    virtual void DrawHUD() override;
+
+protected:
+    UPROPERTY()
+    UFont* TextFont;
+
+    // Bar configuration
+    UPROPERTY(EditAnywhere, Category = "HUD|Bars")
+    float BarWidth = 200.0f;
+
+    UPROPERTY(EditAnywhere, Category = "HUD|Bars")
+    float BarHeight = 20.0f;
+
+    UPROPERTY(EditAnywhere, Category = "HUD|Bars")
+    float BarPadding = 10.0f;
+
+    UPROPERTY(EditAnywhere, Category = "HUD|Bars")
+    FLinearColor HealthBarColor = FLinearColor(1.0f, 0.0f, 0.0f, 1.0f);  // Red
+
+    UPROPERTY(EditAnywhere, Category = "HUD|Bars")
+    FLinearColor ShieldBarColor = FLinearColor(0.0f, 0.5f, 1.0f, 1.0f);  // Light Blue
+
+    UPROPERTY(EditAnywhere, Category = "HUD|Bars")
+    FLinearColor BackgroundBarColor = FLinearColor(0.0f, 0.0f, 0.0f, 0.5f);  // Semi-transparent black
+
+    // Game Over Screen Configuration
+    UPROPERTY(EditAnywhere, Category = "HUD|GameOver")
+    float GameOverScale = 3.0f;
+
+    UPROPERTY(EditAnywhere, Category = "HUD|GameOver")
+    FLinearColor GameOverTextColor = FLinearColor(1.0f, 0.2f, 0.2f, 1.0f);  // Bright red
+
+    UPROPERTY(EditAnywhere, Category = "HUD|GameOver")
+    FLinearColor StatsTextColor = FLinearColor(0.9f, 0.9f, 0.9f, 1.0f);     // Off-white
+
+    UPROPERTY(EditAnywhere, Category = "HUD|GameOver")
+    FLinearColor RestartTextColor = FLinearColor(1.0f, 0.843f, 0.0f, 1.0f); // Gold
+
+    UPROPERTY(EditAnywhere, Category = "HUD|GameOver")
+    float PulsateSpeed = 2.0f;
+
+    UPROPERTY(EditAnywhere, Category = "HUD|GameOver")
+    float PulsateMinAlpha = 0.7f;
+
+    UPROPERTY(EditAnywhere, Category = "HUD|GameOver")
+    float PulsateMaxAlpha = 1.0f;
+
+	UPROPERTY(EditAnywhere, Category = "HUD|Pause")
+	float PauseTextScale = 2.0f;
+
+private:
+    void DrawGameplayHUD();
+    void DrawGameOverScreen();
+    void DrawStatusBars();
+    class ASpaceShooterGameMode* GetGameMode() const;
+    class ASpaceshipPawn* GetPlayerPawn() const;
+
+	void DrawPauseScreen();
+
+    float GameOverStartTime;
+    void DrawGameOverBackground();
+    void DrawGameOverText(const FString& Text, const FVector2D& Position, const FLinearColor& Color, float Scale = 1.0f);
+};

Source/MyProject3/SpaceshipPawn.cpp

@@ -111,6 +111,9 @@ void ASpaceshipPawn::BeginPlay()
     CurrentHealth = MaxHealth;
     CurrentShield = MaxShield;
     LastDamageTime = 0.0f;
+
+    // Initialize the dynamic material
+    InitializeDynamicMaterial();
 }
 
 void ASpaceshipPawn::Tick(float DeltaTime)
@@ -486,17 +489,36 @@ float ASpaceshipPawn::TakeDamage(float DamageAmount, FDamageEvent const& DamageE
     return DamageToApply;
 }
 
+void ASpaceshipPawn::InitializeDynamicMaterial()
+{
+    if (ShipMesh)
+    {
+        // Store the original material
+        OriginalMaterial = ShipMesh->GetMaterial(0);
+
+        if (OriginalMaterial)
+        {
+            // Create dynamic material instance only once
+            DynamicMaterialInstance = UMaterialInstanceDynamic::Create(OriginalMaterial, this);
+            if (DynamicMaterialInstance)
+            {
+                // Apply the dynamic material instance to the mesh
+                ShipMesh->SetMaterial(0, DynamicMaterialInstance);
+
+                // Initialize flash color to transparent
+                DynamicMaterialInstance->SetVectorParameterValue("FlashColor", FLinearColor(0.0f, 0.0f, 0.0f, 0.0f));
+            }
+        }
+    }
+}
+
 void ASpaceshipPawn::ApplyDamageFlash()
 {
-    // Apply material flash effect to indicate damage
-    if (ShipMesh && ShipMesh->GetMaterial(0))
+    // Only set the flash color if we have a valid dynamic material instance
+    if (DynamicMaterialInstance)
     {
-        UMaterialInstanceDynamic* DynamicMaterial = UMaterialInstanceDynamic::Create(ShipMesh->GetMaterial(0), this);
-        if (DynamicMaterial)
-        {
-            // Assuming the material has a parameter named "FlashColor"
-            DynamicMaterial->SetVectorParameterValue("FlashColor", DamageFlashColor);
-            ShipMesh->SetMaterial(0, DynamicMaterial);
+        // Set the flash color
+        DynamicMaterialInstance->SetVectorParameterValue("FlashColor", DamageFlashColor);
 
         // Set timer to reset the flash
         GetWorldTimerManager().SetTimer(
@@ -508,19 +530,13 @@ void ASpaceshipPawn::ApplyDamageFlash()
         );
     }
 }
-}
 
 void ASpaceshipPawn::ResetDamageFlash()
 {
-    // Reset material flash effect
-    if (ShipMesh && ShipMesh->GetMaterial(0))
+    // Reset the flash color only if we have a valid dynamic material instance
+    if (DynamicMaterialInstance)
     {
-        UMaterialInstanceDynamic* DynamicMaterial = Cast<UMaterialInstanceDynamic>(ShipMesh->GetMaterial(0));
-        if (DynamicMaterial)
-        {
-            // Reset the flash color (assuming transparent black means no flash)
-            DynamicMaterial->SetVectorParameterValue("FlashColor", FLinearColor(0.0f, 0.0f, 0.0f, 0.0f));
-        }
+        DynamicMaterialInstance->SetVectorParameterValue("FlashColor", FLinearColor(0.0f, 0.0f, 0.0f, 0.0f));
     }
 }
 
@@ -586,10 +602,6 @@ void ASpaceshipPawn::Die()
         DisableInput(PC);
     }
 
-    // You could either restart the level after a delay or show a game over screen here
-    // For example:
-    // GetWorldTimerManager().SetTimer(RestartTimerHandle, this, &ASpaceshipPawn::RestartLevel, 3.0f, false);
-
     // For now, just log the death
     if (GEngine)
     {

Source/MyProject3/SpaceshipPawn.h

@@ -37,6 +37,18 @@ public:
     UFUNCTION(BlueprintCallable, Category = "Combat")
     float GetShieldPercentage() const { return CurrentShield / MaxShield; }
 
+    UFUNCTION(BlueprintCallable, Category = "Stats")
+    float GetCurrentHealth() const { return CurrentHealth; }
+
+    UFUNCTION(BlueprintCallable, Category = "Stats")
+    float GetMaxHealth() const { return MaxHealth; }
+
+    UFUNCTION(BlueprintCallable, Category = "Stats")
+    float GetCurrentShield() const { return CurrentShield; }
+
+    UFUNCTION(BlueprintCallable, Category = "Stats")
+    float GetMaxShield() const { return MaxShield; }
+
 protected:
     virtual void BeginPlay() override;
 
@@ -128,17 +140,17 @@ protected:
     void HandleMouseLook(const FInputActionValue& Value);
 
     // Health properties
-    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Combat")
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Combat|Stats")
     float MaxHealth = 100.0f;
 
-    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Combat")
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Combat|Stats")
     float CurrentHealth = 100.0f;
 
     // Shield properties
-    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Combat")
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Combat|Stats")
     float MaxShield = 100.0f;
 
-    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Combat")
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Combat|Stats")
     float CurrentShield = 100.0f;
 
     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Combat")
@@ -164,6 +176,14 @@ protected:
     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Effects")
     FLinearColor DamageFlashColor = FLinearColor(1.0f, 0.0f, 0.0f, 0.5f);
 
+    // Store the original material
+    UPROPERTY()
+    UMaterialInterface* OriginalMaterial;
+
+    // Store the dynamic material instance
+    UPROPERTY()
+    UMaterialInstanceDynamic* DynamicMaterialInstance;
+
 private:
     // Movement state
     float CurrentThrottleInput;
@@ -201,6 +221,9 @@ private:
     FTimerHandle DamageFlashTimerHandle;
     float LastDamageTime;
 
+    // Initialize dynamic material
+    void InitializeDynamicMaterial();
+
     void StartShieldRecharge();
     void RechargeShield();
     bool IsDead() const { return CurrentHealth <= 0.0f; }

Source/MyProject3/SpaceshipPlayerController.cpp

@@ -0,0 +1,61 @@
+#include "SpaceshipPlayerController.h"
+#include "EnhancedInputComponent.h"
+#include "EnhancedInputSubsystems.h"
+#include "Components/PostProcessComponent.h"
+#include "Materials/MaterialInstanceDynamic.h"
+#include "SpaceShooterGameMode.h"
+
+ASpaceshipPlayerController::ASpaceshipPlayerController()
+{
+    // Don't automatically show mouse cursor
+    bShowMouseCursor = false;
+}
+
+void ASpaceshipPlayerController::BeginPlay()
+{
+    Super::BeginPlay();
+
+    // Add Input Mapping Context
+    if (UEnhancedInputLocalPlayerSubsystem* Subsystem = ULocalPlayer::GetSubsystem<UEnhancedInputLocalPlayerSubsystem>(GetLocalPlayer()))
+    {
+        if (DefaultMappingContext)
+        {
+            Subsystem->AddMappingContext(DefaultMappingContext, 0);
+        }
+    }
+}
+
+void ASpaceshipPlayerController::SetupInputComponent()
+{
+    Super::SetupInputComponent();
+
+    if (UEnhancedInputComponent* EnhancedInputComponent = CastChecked<UEnhancedInputComponent>(InputComponent))
+    {
+        // Bind the pause action
+        if (PauseAction)
+        {
+            EnhancedInputComponent->BindAction(PauseAction, ETriggerEvent::Started,
+                this, &ASpaceshipPlayerController::HandlePauseAction);
+        }
+    }
+}
+
+void ASpaceshipPlayerController::HandlePauseAction()
+{
+    // Don't allow pausing if game is over
+    if (ASpaceShooterGameMode* GameMode = Cast<ASpaceShooterGameMode>(GetWorld()->GetAuthGameMode()))
+    {
+        if (GameMode->IsGameOver())
+        {
+            return;
+        }
+    }
+
+    bool bIsPaused = IsPaused();
+    SetPause(!bIsPaused);
+
+    // Show cursor only when paused, hide when resuming
+    bShowMouseCursor = !bIsPaused;
+
+	// To fix resume not working, don't change input mode from game only to UI only since in UI mode the key mapping for pause won't work
+}

Source/MyProject3/SpaceshipPlayerController.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#include "CoreMinimal.h"
+#include "GameFramework/PlayerController.h"
+#include "SpaceshipPlayerController.generated.h"
+
+UCLASS()
+class MYPROJECT3_API ASpaceshipPlayerController : public APlayerController
+{
+    GENERATED_BODY()
+
+public:
+    ASpaceshipPlayerController();
+
+protected:
+    virtual void BeginPlay() override;
+    virtual void SetupInputComponent() override;
+
+    // Input Action for pausing
+    UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Input")
+    class UInputAction* PauseAction;
+
+    // Input Mapping Context
+    UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Input")
+    class UInputMappingContext* DefaultMappingContext;
+
+private:
+    // Post process component for blur effect
+    UPROPERTY()
+    class UPostProcessComponent* BlurPostProcess;
+
+    void HandlePauseAction();
+};