Section 13: The Enemy Class - Lecture 271

Grux Physics Asset

Config/DefaultInput.ini

@@ -114,6 +114,5 @@ DoubleClickTime=0.200000
 DefaultPlayerInputClass=/Script/EnhancedInput.EnhancedPlayerInput
 DefaultInputComponentClass=/Script/EnhancedInput.EnhancedInputComponent
 DefaultTouchInterface=/Engine/MobileResources/HUD/DefaultVirtualJoysticks.DefaultVirtualJoysticks
--ConsoleKeys=Tilde
 +ConsoleKeys=Tilde
 

Source/Shooter/Enemy.cpp

@@ -20,7 +20,6 @@ AEnemy::AEnemy() :
 {
  	// Set this character to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
 	PrimaryActorTick.bCanEverTick = true;
-
 }
 
 // Called when the game starts or when spawned
@@ -78,11 +77,26 @@ void AEnemy::DestroyHitNumber(UUserWidget* HitNumber)
 	HitNumber->RemoveFromParent();
 }
 
+void AEnemy::UpdateHitNumbers()
+{
+	for (auto& HitPair : HitNumbers)
+	{
+		UUserWidget* HitNumber{ HitPair.Key };
+		const FVector Location{ HitPair.Value };
+		FVector2D ScreenPosition;
+		UGameplayStatics::ProjectWorldToScreen(GetWorld()->GetFirstPlayerController(),
+			Location, ScreenPosition);
+
+		HitNumber->SetPositionInViewport(ScreenPosition);
+	}
+}
+
 // Called every frame
 void AEnemy::Tick(float DeltaTime)
 {
 	Super::Tick(DeltaTime);
 
+	UpdateHitNumbers();
 }
 
 // Called to bind functionality to input

Source/Shooter/Enemy.h

@@ -42,6 +42,8 @@ protected:
 
 	UFUNCTION()
 	void DestroyHitNumber(UUserWidget* HitNumber);
+
+	void UpdateHitNumbers();
 private:
 	/** Particles to spawn when hit by bullets */
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Combat, meta = (AllowPrivateAccess = true))
@@ -103,5 +105,5 @@ public:
 	FORCEINLINE FString GetHeadBone() const { return HeadBone; }
 
 	UFUNCTION(BlueprintImplementableEvent)
-	void ShowHitNumber(int32 Damage, FVector HitLocation);
+	void ShowHitNumber(int32 Damage, FVector HitLocation, bool bHeadshot);
 };

Source/Shooter/ShooterCharacter.cpp

@@ -678,10 +678,12 @@ void AShooterCharacter::SendBullet()
 			if (BeamHitResult.BoneName.ToString() == HitEnemy->GetHeadBone())
 			{
 				damageToApply = EquippedWeapon->GetHeadshotDamage();
+				HitEnemy->ShowHitNumber(damageToApply, BeamHitResult.Location, true);
 			}
 			else
 			{
 				damageToApply = EquippedWeapon->GetDamage();
+				HitEnemy->ShowHitNumber(damageToApply, BeamHitResult.Location, false);
 			}
 			
 			UGameplayStatics::ApplyDamage(HitEnemy,
@@ -689,7 +691,6 @@ void AShooterCharacter::SendBullet()
 				GetController(), this,
 				UDamageType::StaticClass());
 
-			HitEnemy->ShowHitNumber(damageToApply, BeamHitResult.Location);
 		}
 	}
 	else