From 0142134d336d7572b0fc6af2034d90cf4953e932 Mon Sep 17 00:00:00 2001
From: baz <bazzadobs@live.co.uk>
Date: Tue, 4 Jun 2024 20:56:10 +0100
Subject: [PATCH] Add Follow Player setting to CameraVolume

---
 Source/tank/CameraVolume.cpp | 30 ++++++++++++++++++++++++++----
 Source/tank/CameraVolume.h   | 20 ++++++++++++++++++++
 2 files changed, 46 insertions(+), 4 deletions(-)

diff --git a/Source/tank/CameraVolume.cpp b/Source/tank/CameraVolume.cpp
index 015f81b..f316260 100644
--- a/Source/tank/CameraVolume.cpp
+++ b/Source/tank/CameraVolume.cpp
@@ -3,9 +3,12 @@
 
 #include "CameraVolume.h"
 #include "TankPlayerCharacter.h"
+#include "Kismet/KismetMathLibrary.h"
 
 ACameraVolume::ACameraVolume()
 {
+	PrimaryActorTick.bCanEverTick = true;
+	
 	ArrowComponent = CreateDefaultSubobject<UArrowComponent>(TEXT("Arrow Component"));
 	ArrowComponent->SetupAttachment(RootComponent);
 
@@ -18,15 +21,34 @@ void ACameraVolume::BeginPlay()
 {
 	Super::BeginPlay();
 	this->OnActorBeginOverlap.AddDynamic(this, &ACameraVolume::OnBeginOverlap);
+	this->OnActorEndOverlap.AddDynamic(this, &ACameraVolume::ACameraVolume::OnEndOverlap);
+}
+
+void ACameraVolume::Tick(float DeltaSeconds)
+{
+	Super::Tick(DeltaSeconds);
+
+	if (IsActive && FollowPlayer && TankPlayerCharacter)
+	{
+		TankPlayerCharacter->CameraComponent->SetWorldRotation(UKismetMathLibrary::FindLookAtRotation(
+			ArrowComponent->GetComponentTransform().GetLocation(), TankPlayerCharacter->GetTransform().GetLocation()));
+	}
 }
 
 void ACameraVolume::OnBeginOverlap(AActor* OverlappedActor, AActor* OtherActor)
 {
 	if (ATankPlayerCharacter* PlayerCharacter = Cast<ATankPlayerCharacter>(OtherActor))
 	{
-		FTransform transform = PlayerCharacter->CameraComponent->GetComponentTransform();
-		transform.SetLocation(ArrowComponent->GetComponentTransform().GetLocation());
-		transform.SetRotation(ArrowComponent->GetComponentTransform().GetRotation());
-		PlayerCharacter->CameraComponent->SetWorldTransform(transform);
+		PlayerCharacter->CameraComponent->SetWorldLocation(ArrowComponent->GetComponentTransform().GetLocation());
+		PlayerCharacter->CameraComponent->SetWorldRotation(ArrowComponent->GetComponentTransform().GetRotation());
+
+		TankPlayerCharacter = PlayerCharacter;
+		IsActive = true;
 	}
 }
+
+void ACameraVolume::OnEndOverlap(AActor* OverlappedActor, AActor* OtherActor)
+{
+	IsActive = false;
+	TankPlayerCharacter = nullptr;
+}
diff --git a/Source/tank/CameraVolume.h b/Source/tank/CameraVolume.h
index 32dc4a6..7c9876e 100644
--- a/Source/tank/CameraVolume.h
+++ b/Source/tank/CameraVolume.h
@@ -3,6 +3,7 @@
 #pragma once
 
 #include "CoreMinimal.h"
+#include "TankPlayerCharacter.h"
 #include "Camera/CameraComponent.h"
 #include "Components/ArrowComponent.h"
 #include "Engine/TriggerVolume.h"
@@ -23,12 +24,31 @@ public:
 	UPROPERTY(EditAnywhere, BlueprintReadWrite)
 	UCameraComponent* DebugCamera;
 
+	UPROPERTY(EditAnywhere, BlueprintReadWrite)
+	bool FollowPlayer = false;
+	
+private:
+
+	UPROPERTY()
+	bool IsActive = false;
+
+	UPROPERTY()
+	ATankPlayerCharacter* TankPlayerCharacter = nullptr;
+	
+public:
+	
 	ACameraVolume();
 
 protected:
 	virtual void BeginPlay() override;
 
+public:
+	virtual void Tick(float DeltaSeconds) override;
+
 private:
 	UFUNCTION()
 	void OnBeginOverlap(AActor* OverlappedActor, AActor* OtherActor);
+
+	UFUNCTION()
+	void OnEndOverlap(AActor* OverlappedActor, AActor* OtherActor);
 };