From c3bbb1ac6e8d54710ee98df5c579677a55136158 Mon Sep 17 00:00:00 2001
From: baz <bazzadobs@live.co.uk>
Date: Wed, 28 Aug 2024 02:38:31 +0100
Subject: [PATCH] Add Healthbar to player

---
 Content/Player/BP_PlayerCharacter.uasset      |  4 +--
 .../Player/BP_PlayerHealthbarWidget.uasset    |  3 ++
 Source/vampires/PlayerCharacter.cpp           |  7 +++++
 Source/vampires/PlayerCharacter.h             |  4 +++
 Source/vampires/VampireAIController.h         |  1 -
 Source/vampires/Widgets/HealthbarWidget.cpp   | 23 +++++++++++++++
 Source/vampires/Widgets/HealthbarWidget.h     | 28 +++++++++++++++++++
 7 files changed, 67 insertions(+), 3 deletions(-)
 create mode 100644 Content/Widgets/Player/BP_PlayerHealthbarWidget.uasset
 create mode 100644 Source/vampires/Widgets/HealthbarWidget.cpp
 create mode 100644 Source/vampires/Widgets/HealthbarWidget.h

diff --git a/Content/Player/BP_PlayerCharacter.uasset b/Content/Player/BP_PlayerCharacter.uasset
index 786a5e9..02ee5f8 100644
--- a/Content/Player/BP_PlayerCharacter.uasset
+++ b/Content/Player/BP_PlayerCharacter.uasset
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:bcce95e6c31b5dd49f80544da18520f420886f763d1ee74466c0eab9002a253f
-size 51902
+oid sha256:852c60f9f125e964733cc9fe6234325e10ce7ea36fab369b504f6888bf0d4bb9
+size 52469
diff --git a/Content/Widgets/Player/BP_PlayerHealthbarWidget.uasset b/Content/Widgets/Player/BP_PlayerHealthbarWidget.uasset
new file mode 100644
index 0000000..0aa9d3a
--- /dev/null
+++ b/Content/Widgets/Player/BP_PlayerHealthbarWidget.uasset
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:66b0ca4d61fcb7ee30b04983044c8a2bae62f2ad2ea71abc60e74947029778ef
+size 26194
diff --git a/Source/vampires/PlayerCharacter.cpp b/Source/vampires/PlayerCharacter.cpp
index 0fa9648..4cff263 100644
--- a/Source/vampires/PlayerCharacter.cpp
+++ b/Source/vampires/PlayerCharacter.cpp
@@ -35,6 +35,13 @@ APlayerCharacter::APlayerCharacter()
 
 	//Create Weapon Inventory Component
 	WeaponInventoryComponent = CreateDefaultSubobject<UWeaponInventoryComponent>(TEXT("Weapon Inventory Component"));
+
+	// Create HealthBar Widget Component
+	HealthBarWidgetComponent = CreateDefaultSubobject<UWidgetComponent>(TEXT("Healthbar"));
+	HealthBarWidgetComponent->SetupAttachment(RootComponent);
+	HealthBarWidgetComponent->SetRelativeLocation(FVector(0,0,90));
+	HealthBarWidgetComponent->SetTwoSided(true);
+	HealthBarWidgetComponent->SetBackgroundColor(FLinearColor(1,1,1,0));
 }
 
 void APlayerCharacter::BeginPlay()
diff --git a/Source/vampires/PlayerCharacter.h b/Source/vampires/PlayerCharacter.h
index a9f41cd..c595568 100644
--- a/Source/vampires/PlayerCharacter.h
+++ b/Source/vampires/PlayerCharacter.h
@@ -10,6 +10,7 @@
 #include "Camera/CameraComponent.h"
 #include "GameFramework/SpringArmComponent.h"
 #include "Blueprint/UserWidget.h"
+#include "Components/WidgetComponent.h"
 #include "PlayerCharacter.generated.h"
 
 class UInputMappingContext;
@@ -50,6 +51,9 @@ public:
 	UPROPERTY(EditDefaultsOnly, BlueprintReadWrite)
 	TSubclassOf<UUserWidget> PlayerHUD = nullptr;
 
+	UPROPERTY(EditAnywhere)
+	UWidgetComponent* HealthBarWidgetComponent;
+
 private:
 	FTimerHandle GarlicTimerHandle;
 
diff --git a/Source/vampires/VampireAIController.h b/Source/vampires/VampireAIController.h
index c743376..dd34516 100644
--- a/Source/vampires/VampireAIController.h
+++ b/Source/vampires/VampireAIController.h
@@ -19,7 +19,6 @@ class VAMPIRES_API AVampireAIController : public AAIController
 {
 	GENERATED_BODY()
 
-private:
 	UBlackboardComponent* Blackboard;
 
 	UBehaviorTreeComponent* BehaviorTree;
diff --git a/Source/vampires/Widgets/HealthbarWidget.cpp b/Source/vampires/Widgets/HealthbarWidget.cpp
new file mode 100644
index 0000000..b066075
--- /dev/null
+++ b/Source/vampires/Widgets/HealthbarWidget.cpp
@@ -0,0 +1,23 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+
+#include "HealthbarWidget.h"
+
+#include "Kismet/GameplayStatics.h"
+#include "vampires/PlayerCharacter.h"
+
+void UHealthbarWidget::NativeConstruct()
+{
+	Super::NativeConstruct();
+	APlayerCharacter* player = Cast<APlayerCharacter>(UGameplayStatics::GetPlayerCharacter(GetWorld(), 0));
+	UHealthComponent* healthComponent = player->GetHealthComponent();
+	healthComponent->OnDamaged.BindUFunction(this, "UpdateHealthBar");
+	UpdateHealthBar();
+}
+
+void UHealthbarWidget::UpdateHealthBar()
+{
+	APlayerCharacter* player = Cast<APlayerCharacter>(UGameplayStatics::GetPlayerCharacter(GetWorld(), 0));
+	float percent = player->GetHealthComponent()->GetCurrentHealth() / player->GetHealthComponent()->GetMaxHealth();
+	HealthBar->SetPercent(percent);
+}
diff --git a/Source/vampires/Widgets/HealthbarWidget.h b/Source/vampires/Widgets/HealthbarWidget.h
new file mode 100644
index 0000000..9ecba3e
--- /dev/null
+++ b/Source/vampires/Widgets/HealthbarWidget.h
@@ -0,0 +1,28 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Blueprint/UserWidget.h"
+#include "Components/ProgressBar.h"
+#include "vampires/VampireCharacter.h"
+#include "HealthbarWidget.generated.h"
+
+/**
+ * 
+ */
+UCLASS()
+class VAMPIRES_API UHealthbarWidget : public UUserWidget
+{
+	GENERATED_BODY()
+
+public:
+	UPROPERTY(BlueprintReadWrite, meta = (BindWidget))
+	UProgressBar* HealthBar;
+
+	virtual void NativeConstruct() override;
+	
+private:
+	UFUNCTION()
+	void UpdateHealthBar();
+};