Implement basic combat system

Source/MyProject3/EnemySpaceship.cpp

@@ -1,24 +1,33 @@
 #include "EnemySpaceship.h"
-#include "SpaceshipPawn.h"
-#include "SpaceshipProjectile.h"
 #include "Kismet/GameplayStatics.h"
 
 AEnemySpaceship::AEnemySpaceship()
 {
     PrimaryActorTick.bCanEverTick = true;
 
-    ShipMesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("ShipMesh"));
-    RootComponent = ShipMesh;
+    // Create and setup the enemy mesh
+    EnemyMesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("EnemyMesh"));
+    RootComponent = EnemyMesh;
 
-    CurrentHealth = MaxHealth;
+    // Disable gravity and physics simulation
+    EnemyMesh->SetSimulatePhysics(false);
+    EnemyMesh->SetEnableGravity(false);
+
+    // Set up collision for the enemy mesh
+    EnemyMesh->SetCollisionEnabled(ECollisionEnabled::QueryAndPhysics);
+    EnemyMesh->SetCollisionObjectType(ECC_Pawn);
+    EnemyMesh->SetCollisionResponseToAllChannels(ECR_Block);
+    EnemyMesh->SetCollisionResponseToChannel(ECC_Pawn, ECR_Ignore); // Ignore other pawns
+    EnemyMesh->SetCollisionResponseToChannel(ECC_GameTraceChannel1, ECR_Ignore); // Ignore player
+    EnemyMesh->SetGenerateOverlapEvents(true);
 }
 
 void AEnemySpaceship::BeginPlay()
 {
     Super::BeginPlay();
 
-    PlayerPawn = Cast<ASpaceshipPawn>(UGameplayStatics::GetPlayerPawn(GetWorld(), 0));
-    GetWorldTimerManager().SetTimer(FireTimerHandle, this, &AEnemySpaceship::FireAtPlayer, FireRate, true);
+    // Find the player pawn
+    PlayerPawn = UGameplayStatics::GetPlayerPawn(GetWorld(), 0);
 }
 
 void AEnemySpaceship::Tick(float DeltaTime)
@@ -27,66 +36,43 @@ void AEnemySpaceship::Tick(float DeltaTime)
 
     if (PlayerPawn)
     {
-        // Calculate distance to player
-        float DistanceToPlayer = FVector::Dist(GetActorLocation(), PlayerPawn->GetActorLocation());
+        // Move towards the player
+        FVector Direction = (PlayerPawn->GetActorLocation() - GetActorLocation()).GetSafeNormal();
+        FVector NewLocation = GetActorLocation() + Direction * MovementSpeed * DeltaTime;
+        SetActorLocation(NewLocation);
 
-        if (DistanceToPlayer <= DetectionRange)
-        {
-            // Look at player
-            FVector Direction = PlayerPawn->GetActorLocation() - GetActorLocation();
-            FRotator NewRotation = Direction.Rotation();
-            SetActorRotation(FMath::RInterpTo(GetActorRotation(), NewRotation, DeltaTime, 2.0f));
-
-            // Move towards player while maintaining some distance
-            float TargetDistance = 1000.0f;
-            if (DistanceToPlayer > TargetDistance)
-            {
-                FVector NewLocation = GetActorLocation() + (Direction.GetSafeNormal() * MovementSpeed * DeltaTime);
-                SetActorLocation(NewLocation);
-            }
-            else if (DistanceToPlayer < TargetDistance - 100.0f)
-            {
-                FVector NewLocation = GetActorLocation() - (Direction.GetSafeNormal() * MovementSpeed * DeltaTime);
-                SetActorLocation(NewLocation);
-            }
-        }
+        // Face towards the player
+        FRotator NewRotation = Direction.Rotation();
+        SetActorRotation(NewRotation);
     }
 }
 
-void AEnemySpaceship::FireAtPlayer()
-{
-    if (PlayerPawn && FVector::Dist(GetActorLocation(), PlayerPawn->GetActorLocation()) <= DetectionRange)
-    {
-        UWorld* World = GetWorld();
-        if (World)
-        {
-            FVector SpawnLocation = GetActorLocation() + (GetActorForwardVector() * 100.0f);
-            FRotator SpawnRotation = GetActorRotation();
-            FActorSpawnParameters SpawnParams;
-            SpawnParams.Owner = this;
-            SpawnParams.Instigator = GetInstigator();
-
-            ASpaceshipProjectile* Projectile = World->SpawnActor<ASpaceshipProjectile>(
-                ASpaceshipProjectile::StaticClass(),
-                SpawnLocation,
-                SpawnRotation,
-                SpawnParams
-            );
-        }
-    }
-}
-
-float AEnemySpaceship::TakeDamage(float Damage, FDamageEvent const& DamageEvent,
+float AEnemySpaceship::TakeDamage(float DamageAmount, FDamageEvent const& DamageEvent,
     AController* EventInstigator, AActor* DamageCauser)
 {
-    float ActualDamage = Super::TakeDamage(Damage, DamageEvent, EventInstigator, DamageCauser);
+    float DamageToApply = Super::TakeDamage(DamageAmount, DamageEvent, EventInstigator, DamageCauser);
 
-    CurrentHealth -= ActualDamage;
-    if (CurrentHealth <= 0)
+    CurrentHealth -= DamageToApply;
+
+    // Debug message
+    if (GEngine)
     {
-        // Destroy the enemy ship
-        Destroy();
+        GEngine->AddOnScreenDebugMessage(-1, 2.0f, FColor::Red,
+            FString::Printf(TEXT("Enemy Health: %f"), CurrentHealth));
     }
 
-    return ActualDamage;
+    if (CurrentHealth <= 0)
+    {
+        Die();
+    }
+
+    return DamageToApply;
+}
+
+void AEnemySpaceship::Die()
+{
+    // Add any death effects here
+
+    // Destroy the enemy
+    Destroy();
 }