Add HealthComponent

Source/vampires/HealthComponent.cpp

@@ -0,0 +1,108 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+
+#include "HealthComponent.h"
+
+// Sets default values for this component's properties
+UHealthComponent::UHealthComponent()
+{
+	// Set this component to be initialized when the game starts, and to be ticked every frame.  You can turn these features
+	// off to improve performance if you don't need them.
+	PrimaryComponentTick.bCanEverTick = false;
+
+	// ...
+}
+
+void UHealthComponent::TakeDamage(AActor* damagedActor, float damage, const UDamageType* damageType,
+                                  AController* instigatedBy, AActor* damageCauser)
+{
+	if (damagedActor == nullptr || IsDead || !CanDamage)
+	{
+		return;
+	}
+
+	CurrentHealth -= damage;
+
+	OnDamaged.ExecuteIfBound({damagedActor, damage, damageType, instigatedBy, damageCauser});
+
+	if (CurrentHealth <= 0.0f)
+	{
+		IsDead = true;
+		OnDeath.ExecuteIfBound({damagedActor, damage, damageType, instigatedBy, damageCauser});
+	}
+}
+
+void UHealthComponent::IncrementHealth(float value)
+{
+	CurrentHealth += value;
+
+	if (CurrentHealth > MaxHealth)
+	{
+		CurrentHealth = MaxHealth;
+	}
+}
+
+float UHealthComponent::GetMaxHealth()
+{
+	return MaxHealth;
+}
+
+void UHealthComponent::SetMaxHealth(float value)
+{
+	MaxHealth = value;
+}
+
+float UHealthComponent::GetCurrentHealth()
+{
+	return CurrentHealth;
+}
+
+void UHealthComponent::SetCurrentHealth(float value)
+{
+	CurrentHealth = value;
+
+	if (CurrentHealth > MaxHealth)
+	{
+		CurrentHealth = MaxHealth;
+	}
+}
+
+void UHealthComponent::ResetHealth()
+{
+	CurrentHealth = MaxHealth;
+}
+
+void UHealthComponent::RecoverHealth(float value)
+{
+	// TODO: We might want to add some extra checking here
+	IncrementHealth(value);
+}
+
+bool UHealthComponent::GetIsDead()
+{
+	return IsDead;
+}
+
+void UHealthComponent::SetIsDead(bool isDead)
+{
+	IsDead = isDead;
+}
+
+bool UHealthComponent::GetCanDamage()
+{
+	return CanDamage;
+}
+
+void UHealthComponent::SetCanDamage(bool canDamage)
+{
+	CanDamage = canDamage;
+}
+
+
+// Called when the game starts
+void UHealthComponent::BeginPlay()
+{
+	Super::BeginPlay();
+
+	ResetHealth();
+}

Source/vampires/HealthComponent.h

@@ -0,0 +1,98 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Components/ActorComponent.h"
+#include "HealthComponent.generated.h"
+
+USTRUCT()
+struct FDamageInfo
+{
+	GENERATED_BODY()
+
+	UPROPERTY()
+	AActor* DamagedActor;
+
+	UPROPERTY()
+	float Damage;
+
+	UPROPERTY()
+	const UDamageType* DamageType;
+
+	UPROPERTY()
+	AController* InstigatedBy;
+
+	UPROPERTY()
+	AActor* DamageCauser;
+};
+
+DECLARE_DELEGATE_OneParam(FOnDamageDelegate, FDamageInfo)
+DECLARE_DELEGATE_OneParam(FOnDeathDelegate, FDamageInfo)
+
+UCLASS(ClassGroup=(Custom), meta=(BlueprintSpawnableComponent))
+class VAMPIRES_API UHealthComponent : public UActorComponent
+{
+	GENERATED_BODY()
+
+public:
+	FOnDamageDelegate OnDamaged;
+	FOnDeathDelegate OnDeath;
+
+protected:
+	UPROPERTY(EditDefaultsOnly)
+	float MaxHealth = 100.f;
+
+	UPROPERTY(VisibleAnywhere)
+	float CurrentHealth;
+
+	bool IsDead = false;
+
+	bool CanDamage = true;
+
+public:
+	// Sets default values for this component's properties
+	UHealthComponent();
+
+	UFUNCTION()
+	virtual void TakeDamage(AActor* damagedActor, float damage, const UDamageType* damageType,
+	                        AController* instigatedBy,
+	                        AActor* damageCauser);
+
+	UFUNCTION()
+	void IncrementHealth(float value);
+
+	UFUNCTION()
+	float GetMaxHealth();
+
+	UFUNCTION()
+	void SetMaxHealth(float value);
+
+	UFUNCTION()
+	float GetCurrentHealth();
+
+	UFUNCTION()
+	void SetCurrentHealth(float value);
+
+	UFUNCTION()
+	void ResetHealth();
+
+	UFUNCTION()
+	void RecoverHealth(float healing);
+
+	UFUNCTION()
+	bool GetIsDead();
+
+	UFUNCTION()
+	void SetIsDead(bool isDead);
+
+	UFUNCTION()
+	bool GetCanDamage();
+
+	UFUNCTION()
+	void SetCanDamage(bool canDamage);
+
+protected:
+	// Called when the game starts
+	virtual void BeginPlay() override;
+};

Source/vampires/PlayerCharacter.cpp

@@ -26,6 +26,9 @@ APlayerCharacter::APlayerCharacter()
 	CameraComponent->bUsePawnControlRotation = false;
 	CameraComponent->SetProjectionMode(ECameraProjectionMode::Type::Orthographic);
 	CameraComponent->SetOrthoWidth(4000.0f);
+
+	// Create Health Component
+	HealthComponent = CreateDefaultSubobject<UHealthComponent>(TEXT("Health Component"));
 }
 
 void APlayerCharacter::BeginPlay()

Source/vampires/PlayerCharacter.h

@@ -3,6 +3,7 @@
 #pragma once
 
 #include "CoreMinimal.h"
+#include "HealthComponent.h"
 #include "VampireCharacter.h"
 #include "Camera/CameraComponent.h"
 #include "GameFramework/SpringArmComponent.h"
@@ -33,6 +34,9 @@ public:
 	UPROPERTY(EditDefaultsOnly, BlueprintReadWrite)
 	UInputAction* MovementAction;
 
+	UPROPERTY()
+	UHealthComponent* HealthComponent;
+
 public:
 	
 	APlayerCharacter();