45 - Equipping Weapons

Config/DefaultInput.ini

@@ -75,6 +75,7 @@ DefaultViewportMouseLockMode=LockOnCapture
 FOVScale=0.011110
 DoubleClickTime=0.200000
 +ActionMappings=(ActionName="Jump",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=SpaceBar)
++ActionMappings=(ActionName="Equip",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=E)
 +AxisMappings=(AxisName="MoveForward",Scale=1.000000,Key=W)
 +AxisMappings=(AxisName="MoveForward",Scale=-1.000000,Key=S)
 +AxisMappings=(AxisName="MoveRight",Scale=1.000000,Key=D)

Source/Blaster/Character/BlasterCharacter.cpp

@@ -3,6 +3,7 @@
 
 #include "BlasterCharacter.h"
 
+#include "Blaster/Components/CombatComponent.h"
 #include "Blaster/Weapon/Weapon.h"
 #include "Camera/CameraComponent.h"
 #include "Components/WidgetComponent.h"
@@ -29,6 +30,9 @@ ABlasterCharacter::ABlasterCharacter()
 
 	OverheadWidget = CreateDefaultSubobject<UWidgetComponent>(TEXT("OverheadWidget"));
 	OverheadWidget->SetupAttachment(RootComponent);
+
+	Combat = CreateDefaultSubobject<UCombatComponent>(TEXT("CombatComponent"));
+	Combat->SetIsReplicated(true);
 }
 
 void ABlasterCharacter::GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& OutLifetimeProps) const
@@ -38,6 +42,16 @@ void ABlasterCharacter::GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& Ou
 	DOREPLIFETIME_CONDITION(ABlasterCharacter, OverlappingWeapon, COND_OwnerOnly);
 }
 
+void ABlasterCharacter::PostInitializeComponents()
+{
+	Super::PostInitializeComponents();
+
+	if (Combat)
+	{
+		Combat->Character = this;
+	}
+}
+
 void ABlasterCharacter::BeginPlay()
 {
 	Super::BeginPlay();
@@ -53,6 +67,8 @@ void ABlasterCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputCo
 	Super::SetupPlayerInputComponent(PlayerInputComponent);
 
 	PlayerInputComponent->BindAction("Jump", IE_Pressed, this, &ACharacter::Jump);
+	PlayerInputComponent->BindAction("Equip", IE_Pressed, this, &ABlasterCharacter::EquipButtonPressed);
+	
 	PlayerInputComponent->BindAxis("MoveForward", this, &ABlasterCharacter::MoveForward);
 	PlayerInputComponent->BindAxis("MoveRight", this, &ABlasterCharacter::MoveRight);
 	PlayerInputComponent->BindAxis("Turn", this, &ABlasterCharacter::Turn);
@@ -91,13 +107,21 @@ void ABlasterCharacter::LookUp(float Value)
 	AddControllerPitchInput(Value);
 }
 
+void ABlasterCharacter::EquipButtonPressed()
+{
+	if (Combat && HasAuthority())
+	{
+		Combat->EquipWeapon(OverlappingWeapon);
+	}
+}
+
 void ABlasterCharacter::SetOverlappingWeapon(AWeapon* Weapon)
 {
 	if (OverlappingWeapon)
 	{
 		OverlappingWeapon->ShowPickupWidget(false);
 	}
-	
+
 	OverlappingWeapon = Weapon;
 	if (IsLocallyControlled())
 	{

Source/Blaster/Character/BlasterCharacter.h

@@ -16,6 +16,8 @@ public:
 	virtual void Tick(float DeltaTime) override;
 	virtual void SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent) override;
 	virtual void GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& OutLifetimeProps) const override;
+	virtual void PostInitializeComponents() override;
+	
 protected:
 	virtual void BeginPlay() override;
 
@@ -23,7 +25,8 @@ protected:
 	void MoveRight(float Value);
 	void Turn(float Value);
 	void LookUp(float Value);
-	
+	void EquipButtonPressed();
+
 private:
 	UPROPERTY(VisibleAnywhere, Category="Camera")
 	class USpringArmComponent* CameraBoom;
@@ -39,7 +42,10 @@ private:
 
 	UFUNCTION()
 	void OnRep_OverlappingWeapon(AWeapon* LastWeapon);
-	
+
+	UPROPERTY(VisibleAnywhere)
+	class UCombatComponent* Combat;
+
 public:
 	void SetOverlappingWeapon(AWeapon* Weapon);
 };

Source/Blaster/Components/CombatComponent.cpp

@@ -0,0 +1,39 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+
+#include "CombatComponent.h"
+
+#include "Blaster/Character/BlasterCharacter.h"
+#include "Blaster/Weapon/Weapon.h"
+#include "Engine/SkeletalMeshSocket.h"
+
+UCombatComponent::UCombatComponent()
+{
+	PrimaryComponentTick.bCanEverTick = false;
+}
+
+void UCombatComponent::BeginPlay()
+{
+	Super::BeginPlay();
+}
+
+void UCombatComponent::TickComponent(float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction)
+{
+	Super::TickComponent(DeltaTime, TickType, ThisTickFunction);
+
+}
+
+void UCombatComponent::EquipWeapon(AWeapon* WeaponToEquip)
+{
+	if (Character == nullptr || WeaponToEquip == nullptr) return;
+
+	EquippedWeapon = WeaponToEquip;
+	EquippedWeapon->SetWeaponState(EWeaponState::EWS_Equipped);
+	const USkeletalMeshSocket* HandSocket = Character->GetMesh()->GetSocketByName(FName("RightHandSocket"));
+	if (HandSocket)
+	{
+		HandSocket->AttachActor(EquippedWeapon, Character->GetMesh());
+	}
+	EquippedWeapon->SetOwner(Character);
+	EquippedWeapon->ShowPickupWidget(false);
+}

Source/Blaster/Components/CombatComponent.h

@@ -0,0 +1,28 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Components/ActorComponent.h"
+#include "CombatComponent.generated.h"
+
+
+UCLASS( ClassGroup=(Custom), meta=(BlueprintSpawnableComponent) )
+class BLASTER_API UCombatComponent : public UActorComponent
+{
+	GENERATED_BODY()
+
+public:	
+	UCombatComponent();
+	virtual void TickComponent(float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction) override;
+	friend class ABlasterCharacter;
+
+	void EquipWeapon(class AWeapon* WeaponToEquip);
+	
+protected:
+	virtual void BeginPlay() override;
+
+private:
+	class ABlasterCharacter* Character;
+	class AWeapon* EquippedWeapon;
+};

Source/Blaster/Weapon/Weapon.h

@@ -12,6 +12,7 @@ enum class EWeaponState : uint8
 	EWS_Initial UMETA(DisplayName = "Initial State"),
 	EWS_Equipped UMETA(DisplayName = "Equipped"),
 	EWS_Dropped UMETA(DisplayName = "Dropped"),
+	
 	EWS_MAX UMETA(DisplayName = "DefaultMAX")
 };
 
@@ -59,4 +60,5 @@ private:
 	class UWidgetComponent* PickupWidget;
 
 public:
+	FORCEINLINE void SetWeaponState(EWeaponState State) { WeaponState = State; };
 };