Add basic class files

Source/MyProject3/EnemySpaceship.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include "CoreMinimal.h"
+#include "GameFramework/Pawn.h"
+#include "EnemySpaceship.generated.h"
+
+UCLASS()
+class MYPROJECT3_API AEnemySpaceship : public APawn
+{
+    GENERATED_BODY()
+
+public:
+    AEnemySpaceship();
+    virtual void Tick(float DeltaTime) override;
+
+protected:
+    virtual void BeginPlay() override;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Components")
+    class UStaticMeshComponent* ShipMesh;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "AI")
+    float DetectionRange = 1500.0f;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "AI")
+    float FireRate = 2.0f;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Movement")
+    float MovementSpeed = 500.0f;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Combat")
+    float MaxHealth = 100.0f;
+
+    float CurrentHealth;
+    FTimerHandle FireTimerHandle;
+    class ASpaceshipPawn* PlayerPawn;
+
+    void FireAtPlayer();
+    virtual float TakeDamage(float Damage, struct FDamageEvent const& DamageEvent,
+        AController* EventInstigator, AActor* DamageCauser) override;
+};