Initial Commit - Lesson 31 (Commit #1)

Source/FPSTemplate/Public/Weapon/Weapon.h

@@ -0,0 +1,164 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "GameFramework/Actor.h"
+#include "GameplayTagContainer.h"
+#include "ShooterTypes/ShooterTypes.h"
+#include "Weapon.generated.h"
+
+struct FPlayerHitResult;
+
+/** Enum used to describe what state the weapon is currently in. */
+UENUM(BlueprintType)
+namespace EWeaponState
+{
+	enum Type
+	{
+		Idle,
+		Firing,
+		Reloading,
+		Equipping,
+	};
+}
+
+UENUM(BlueprintType)
+namespace EFireType
+{
+	enum Type
+	{
+		Auto,
+		SemiAuto
+	};
+}
+
+UCLASS()
+class FPSTEMPLATE_API AWeapon : public AActor
+{
+	GENERATED_BODY()
+
+public:
+	AWeapon();
+	virtual void Tick(float DeltaTime) override;
+	virtual void OnRep_Instigator() override;
+
+	/** perform initial setup */
+	virtual void PostInitializeComponents() override;
+
+	UPROPERTY(BlueprintReadOnly, EditAnywhere)
+	FGameplayTag WeaponType;
+
+	//////////////////////////////////////////////////////////////////////////
+	// Firing the Weapon
+
+	void Local_Fire(const FVector& ImpactPoint, const FVector& ImpactNormal, TEnumAsByte<EPhysicalSurface> SurfaceType, bool bIsFirstPerson);
+	int32 Auth_Fire();
+	void Rep_Fire(int32 AuthAmmo);
+
+	UFUNCTION(BlueprintImplementableEvent)
+	void FireEffects(const FVector& ImpactPoint, const FVector& ImpactNormal, EPhysicalSurface SurfaceType, bool bIsFirstPerson);
+
+	//////////////////////////////////////////////////////////////////////////
+	// Inventory
+	
+	/** [server] weapon was added to pawn's inventory */
+	virtual void OnEnterInventory(APawn* NewOwner);
+
+	/** weapon is holstered by owner pawn */
+	virtual void OnUnEquip();
+
+	/** weapon is being equipped by owner pawn */
+	virtual void OnEquip(const AWeapon* LastWeapon);
+
+	/** set the weapon's owning pawn */
+	void SetOwningPawn(APawn* NewOwningPawn);
+
+	/** get weapon mesh (needs pawn owner to determine variant) */
+	USkeletalMeshComponent* GetWeaponMesh() const;
+	
+	/** update weapon state */
+	void SetWeaponState(EWeaponState::Type NewState);
+
+	EWeaponState::Type GetWeaponState() const;
+
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly)
+	int32 MagCapacity;
+
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly)
+	int32 Ammo;
+
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly)
+	int32 Sequence;
+
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly)
+	int32 StartingCarriedAmmo;
+
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly)
+	float Damage;
+
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly)
+	float AimFieldOfView;
+
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly)
+	float HeadShotDamage;
+
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly)
+	float FireTime;
+
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly)
+	TEnumAsByte<EFireType::Type> FireType;
+
+	USkeletalMeshComponent* GetMesh1P() const;
+	USkeletalMeshComponent* GetMesh3P() const;
+	
+	UMaterialInstanceDynamic* GetReticleDynamicMaterialInstance();
+	UMaterialInstanceDynamic* GetAmmoCounterDynamicMaterialInstance();
+	UMaterialInstanceDynamic* GetWeaponIconDynamicMaterialInstance();
+
+	UPROPERTY(EditDefaultsOnly, Category=Reticle)
+	FReticleParams ReticleParams;
+
+protected:
+	virtual void BeginPlay() override;
+	
+	//////////////////////////////////////////////////////////////////////////
+	// Inventory
+
+	/** attaches weapon mesh to pawn's mesh */
+	void AttachMeshToPawn();
+
+	/** detaches weapon mesh from pawn */
+	void DetachMeshFromPawn();
+
+private:
+	/** weapon mesh: 1st person view */
+	UPROPERTY(VisibleDefaultsOnly, BlueprintReadOnly, Category=Mesh, meta = (AllowPrivateAccess = "true"))
+	TObjectPtr<USkeletalMeshComponent> Mesh1P;
+
+	/** weapon mesh: 3rd person view */
+	UPROPERTY(VisibleDefaultsOnly, BlueprintReadOnly, Category=Mesh, meta = (AllowPrivateAccess = "true"))
+	TObjectPtr<USkeletalMeshComponent> Mesh3P;
+
+	/** current weapon state */
+	EWeaponState::Type CurrentState;
+
+	UPROPERTY(EditDefaultsOnly, Category=Weapon)
+	TObjectPtr<UMaterialInterface> ReticleMaterial;
+
+	UPROPERTY()
+	TObjectPtr<UMaterialInstanceDynamic> DynMatInst_Reticle;
+
+	UPROPERTY(EditDefaultsOnly, Category=Weapon)
+	TObjectPtr<UMaterialInterface> AmmoCounterMaterial;
+
+	UPROPERTY()
+	TObjectPtr<UMaterialInstanceDynamic> DynMatInst_AmmoCounter;
+
+	UPROPERTY(EditDefaultsOnly, Category=Weapon)
+	TObjectPtr<UMaterialInterface> WeaponIconMaterial;
+
+	UPROPERTY()
+	TObjectPtr<UMaterialInstanceDynamic> DynMatInst_WeaponIcon;
+	
+};