From 12291c9b190efc5e3a0bd8c6fbb4386d09bbf9da Mon Sep 17 00:00:00 2001
From: baz <bazzadobs@live.co.uk>
Date: Fri, 4 Apr 2025 22:57:43 +0100
Subject: [PATCH] Constrain player to viewable area

---
 Source/vampires/PlayerCharacter.cpp | 23 +++++++++++++++++++++++
 Source/vampires/PlayerCharacter.h   |  1 +
 2 files changed, 24 insertions(+)

diff --git a/Source/vampires/PlayerCharacter.cpp b/Source/vampires/PlayerCharacter.cpp
index 9797413..7ff91b1 100644
--- a/Source/vampires/PlayerCharacter.cpp
+++ b/Source/vampires/PlayerCharacter.cpp
@@ -11,6 +11,7 @@
 #include "InputMappingContext.h"
 #include "WeaponInventoryComponent.h"
 #include "Components/WidgetComponent.h"
+#include "Kismet/GameplayStatics.h"
 
 APlayerCharacter::APlayerCharacter()
 {
@@ -34,6 +35,28 @@ void APlayerCharacter::BeginPlay()
 	Super::BeginPlay();
 }
 
+void APlayerCharacter::Tick(float DeltaTime)
+{
+	Super::Tick(DeltaTime);
+
+	auto PlayerController = UGameplayStatics::GetPlayerController(GetWorld(), 0);
+	
+	FVector TopLeft, TopLeftDir;
+	FVector BottomRight, BottomRightDir;
+
+	FVector2d ViewportSize;
+	GEngine->GameViewport->GetViewportSize(ViewportSize);
+
+	PlayerController->DeprojectScreenPositionToWorld(0, 0, TopLeft, TopLeftDir);
+	PlayerController->DeprojectScreenPositionToWorld(ViewportSize.X, ViewportSize.Y, BottomRight, BottomRightDir);
+
+	auto location = GetActorLocation();
+	location.X = FMath::Clamp(location.X, BottomRight.X, TopLeft.X);
+	location.Y = FMath::Clamp(location.Y, TopLeft.Y, BottomRight.Y);
+
+	SetActorLocation(location);
+}
+
 UEXPComponent* APlayerCharacter::GetEXPComponent()
 {
 	return EXPComponent;
diff --git a/Source/vampires/PlayerCharacter.h b/Source/vampires/PlayerCharacter.h
index caac86c..2be31e7 100644
--- a/Source/vampires/PlayerCharacter.h
+++ b/Source/vampires/PlayerCharacter.h
@@ -38,6 +38,7 @@ protected:
 	virtual void BeginPlay() override;
 
 public:
+	virtual void Tick(float DeltaTime) override;
 
 	UEXPComponent* GetEXPComponent();