116 - Updating Ammo

Source/Blaster/Components/CombatComponent.cpp

@@ -343,7 +343,8 @@ void UCombatComponent::FinishedReloading()
 	if (Character == nullptr) return;
 	if (Character->HasAuthority())
 	{
-		CombatState = ECombatState::ECS_Unoccupied;;
+		CombatState = ECombatState::ECS_Unoccupied;
+		UpdateAmmoValues();
 	}
 	if (bFireButtonPressed)
 	{
@@ -351,9 +352,29 @@ void UCombatComponent::FinishedReloading()
 	}
 }
 
+void UCombatComponent::UpdateAmmoValues()
+{
+	if (Character == nullptr || EquippedWeapon == nullptr) return;
+	const int32 ReloadAmount = AmountToReload();
+	if (CarriedAmmoMap.Contains(EquippedWeapon->GetWeaponType()))
+	{
+		CarriedAmmoMap[EquippedWeapon->GetWeaponType()] -= ReloadAmount;
+		CarriedAmmo = CarriedAmmoMap[EquippedWeapon->GetWeaponType()];
+	}
+	Controller = Controller == nullptr ? Cast<ABlasterPlayerController>(Character->Controller) : Controller;
+	if (Controller)
+	{
+		Controller->SetHUDCarriedAmmo(CarriedAmmo);
+	}
+	EquippedWeapon->AddAmmo(-ReloadAmount);
+}
+
 void UCombatComponent::ServerReload_Implementation()
 {
-	if (Character == nullptr) return;
+	if (Character == nullptr || EquippedWeapon == nullptr) return;
+
+	// return if weapon mag is at max capacity
+	if (EquippedWeapon->GetAmmo() == EquippedWeapon->GetMagCapacity()) return;
 	
 	CombatState = ECombatState::ECS_Reloading;
 	HandleReload();
@@ -380,6 +401,22 @@ void UCombatComponent::HandleReload()
 	Character->PlayReloadMontage();
 }
 
+int32 UCombatComponent::AmountToReload()
+{
+	if (EquippedWeapon == nullptr) return 0;
+
+	const int32 RoomInMag = EquippedWeapon->GetMagCapacity() - EquippedWeapon->GetAmmo();
+
+	if (CarriedAmmoMap.Contains(EquippedWeapon->GetWeaponType()))
+	{
+		const int32 AmountCarried = CarriedAmmoMap[EquippedWeapon->GetWeaponType()];
+		const int32 Least = FMath::Min(RoomInMag, AmountCarried);
+		return FMath::Clamp(RoomInMag, 0, Least);
+	}
+	
+	return 0;
+}
+
 void UCombatComponent::OnRep_EquippedWeapon()
 {
 	if (EquippedWeapon && Character)

Source/Blaster/Components/CombatComponent.h

@@ -27,6 +27,7 @@ public:
 	void Reload();
 	UFUNCTION(BlueprintCallable)
 	void FinishedReloading();
+	void UpdateAmmoValues();
 
 protected:
 	virtual void BeginPlay() override;
@@ -55,6 +56,7 @@ protected:
 	void ServerReload();
 
 	void HandleReload();
+	int32 AmountToReload();
 private:
 	UPROPERTY()
 	class ABlasterCharacter* Character;

Source/Blaster/Weapon/Weapon.cpp

@@ -212,3 +212,9 @@ void AWeapon::Dropped()
 	OwnerCharacter = nullptr;
 	OwnerController = nullptr;
 }
+
+void AWeapon::AddAmmo(int32 Amount)
+{
+	Ammo = FMath::Clamp(Ammo - Amount, 0, MagCapacity);
+	SetHUDAmmo();
+}

Source/Blaster/Weapon/Weapon.h

@@ -30,6 +30,7 @@ public:
 	void ShowPickupWidget(bool bShowWidget);
 	virtual void Fire(const FVector& HitTarget);
 	void Dropped();
+	void AddAmmo(int32 Amount);
 	
 	// Textures for the weapon crosshairs
 
@@ -133,5 +134,7 @@ public:
 	FORCEINLINE float GetZoomedFOV() const { return ZoomedFOV; };
 	FORCEINLINE float GetZoomInterpSpeed() const { return ZoomInterpSpeed; };
 	FORCEINLINE EWeaponType GetWeaponType() const { return WeaponType; }
+	FORCEINLINE int32 GetAmmo() const { return Ammo; }
+	FORCEINLINE int32 GetMagCapacity() const { return MagCapacity; }
 	bool IsEmpty();
 };