From e07abfbcfcab3cd3655157ed34737dea284adefa Mon Sep 17 00:00:00 2001
From: baz <bazzadobs@live.co.uk>
Date: Fri, 22 Nov 2024 00:29:50 +0000
Subject: [PATCH] Get Previous Movement Direction using Inputable interface

---
 Source/vampires/Inputable.h             |  3 +++
 Source/vampires/PlayerCharacter.h       |  2 --
 Source/vampires/VampireCharacter.cpp    |  7 +++++++
 Source/vampires/VampireCharacter.h      |  6 +++++-
 Source/vampires/Weapons/KnifeWeapon.cpp | 26 +++++++++++++------------
 5 files changed, 29 insertions(+), 15 deletions(-)

diff --git a/Source/vampires/Inputable.h b/Source/vampires/Inputable.h
index 5cf1ff3..156c806 100644
--- a/Source/vampires/Inputable.h
+++ b/Source/vampires/Inputable.h
@@ -27,4 +27,7 @@ public:
 
 	UFUNCTION(BlueprintCallable, BlueprintNativeEvent)
 	UInputMappingContext* Input_GetInputMappingContext();
+
+	UFUNCTION(BlueprintCallable, BlueprintNativeEvent)
+	FVector2D Input_GetPreviousMovementDirection();
 };
diff --git a/Source/vampires/PlayerCharacter.h b/Source/vampires/PlayerCharacter.h
index f28f2b8..4d6db40 100644
--- a/Source/vampires/PlayerCharacter.h
+++ b/Source/vampires/PlayerCharacter.h
@@ -37,8 +37,6 @@ public:
 	UPROPERTY(EditAnywhere, BlueprintReadWrite)
 	UGoldComponent* GoldComponent;
 
-	FVector2D PreviousMovementDirection = FVector2d(1.0f, 0.0f);
-
 	UPROPERTY(EditAnywhere)
 	UWidgetComponent* HealthBarWidgetComponent;
 
diff --git a/Source/vampires/VampireCharacter.cpp b/Source/vampires/VampireCharacter.cpp
index 84e73dd..0ddc3e1 100644
--- a/Source/vampires/VampireCharacter.cpp
+++ b/Source/vampires/VampireCharacter.cpp
@@ -41,6 +41,8 @@ void AVampireCharacter::Tick(float DeltaTime)
 
 void AVampireCharacter::Input_Move_Implementation(FVector2D value)
 {
+	PreviousMovementDirection = value;
+	
 	if (value.Size() != 0.0f)
 	{
 		AddMovementInput({0.0f, 1.0f, 0.0f}, value.Y);
@@ -53,6 +55,11 @@ UInputMappingContext* AVampireCharacter::Input_GetInputMappingContext_Implementa
 	return InputMappingContext;
 }
 
+FVector2D AVampireCharacter::Input_GetPreviousMovementDirection_Implementation()
+{
+	return PreviousMovementDirection;
+}
+
 UHealthComponent* AVampireCharacter::GetHealthComponent()
 {
 	return HealthComponent;
diff --git a/Source/vampires/VampireCharacter.h b/Source/vampires/VampireCharacter.h
index 5564c0c..e3d676b 100644
--- a/Source/vampires/VampireCharacter.h
+++ b/Source/vampires/VampireCharacter.h
@@ -21,13 +21,15 @@ public:
 	UPROPERTY(BlueprintReadWrite, EditAnywhere)
 	UPaperFlipbookComponent* PaperFlipbookComponent;
 
+	FVector2D PreviousMovementDirection = FVector2d(1.0f, 0.0f);
+
 protected:
 	UPROPERTY()
 	UHealthComponent* HealthComponent;
 
 	UPROPERTY(EditAnywhere, BlueprintReadWrite)
 	TObjectPtr<UInputMappingContext> InputMappingContext;
-	
+
 	UPROPERTY(EditAnywhere, BlueprintReadWrite)
 	UWeaponInventoryComponent* WeaponInventoryComponent;
 
@@ -47,5 +49,7 @@ public:
 
 	virtual UInputMappingContext* Input_GetInputMappingContext_Implementation() override;
 
+	virtual FVector2D Input_GetPreviousMovementDirection_Implementation() override;
+
 	UHealthComponent* GetHealthComponent();
 };
diff --git a/Source/vampires/Weapons/KnifeWeapon.cpp b/Source/vampires/Weapons/KnifeWeapon.cpp
index 884915e..6c91039 100644
--- a/Source/vampires/Weapons/KnifeWeapon.cpp
+++ b/Source/vampires/Weapons/KnifeWeapon.cpp
@@ -20,19 +20,21 @@ void AKnifeWeapon::FireWeaponAction_Implementation()
 {
 	Super::FireWeaponAction_Implementation();
 
-	APlayerCharacter* playerCharacter = Cast<APlayerCharacter>(UGameplayStatics::GetPlayerCharacter(GetWorld(), 0));
-	if (IsValid(ProjectileTemplate) && playerCharacter)
+	if (UKismetSystemLibrary::DoesImplementInterface(GetOwner(), UInputable::StaticClass()))
 	{
-		FActorSpawnParameters actorSpawnParameters;
-		actorSpawnParameters.Owner = this;
-		actorSpawnParameters.SpawnCollisionHandlingOverride = ESpawnActorCollisionHandlingMethod::AlwaysSpawn;
-		actorSpawnParameters.TransformScaleMethod = ESpawnActorScaleMethod::MultiplyWithRoot;
+		if (IsValid(ProjectileTemplate))
+		{
+			FActorSpawnParameters actorSpawnParameters;
+			actorSpawnParameters.Owner = this;
+			actorSpawnParameters.SpawnCollisionHandlingOverride = ESpawnActorCollisionHandlingMethod::AlwaysSpawn;
+			actorSpawnParameters.TransformScaleMethod = ESpawnActorScaleMethod::MultiplyWithRoot;
 
-		AProjectile* projectile = GetWorld()->SpawnActor<AProjectile>(ProjectileTemplate, GetOwner()->GetTransform(),
-		                                                              actorSpawnParameters);
+			AProjectile* projectile = GetWorld()->SpawnActor<AProjectile>(ProjectileTemplate, GetOwner()->GetTransform(),
+			                                                              actorSpawnParameters);
 
-		FVector direction = FVector(playerCharacter->PreviousMovementDirection, 0.0);
-		direction.Normalize();
-		projectile->SetTargetDirection(direction);
-	}
+			FVector direction = FVector(IInputable::Execute_Input_GetPreviousMovementDirection(GetOwner()), 0.0);
+			direction.Normalize();
+			projectile->SetTargetDirection(direction);
+		}
+	}	
 }