WeaponInstanceVehicle.h

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// Copyright Blue Isle Studios Inc 2018. All Rights Reserved.
 
#pragma once
#include "CoreMinimal.h"
#include "Weapons/WeaponInstanceProjectile.h"
#include "WeaponInstanceVehicle.generated.h"
 
class AProjectXVehicle;
class UVehicleWeaponSeatComponent;
 
UCLASS()
class PROJECTX_API UWeaponInstanceVehicle : public UWeaponInstanceProjectile
{
    GENERATED_UCLASS_BODY()
public:
    virtual bool IsLocallyOwnedRemote() const override;
    virtual bool IsLocallyOwned() const override;
    virtual bool IsSimulatedOnly() const override;
    virtual bool IsAuthority() const override;
    virtual bool IsNonOwningAuthority() const override;
    virtual AProjectXPlayerController* GetOwningPlayerController() const override;
    virtual void EndPlay(const EEndPlayReason::Type EndPlayReason) override;
    virtual void InitializeWeapon(bool bFromBatchInitialization = false) override;
    virtual bool Equip() override;
    virtual bool UnEquip(bool bForce=false) override;
    virtual bool GetProjectileTransform_Implementation(FTransform& Transform, FTransform& CosmeticTransform) override;
    virtual bool CanFire(EWeaponError& ErrorMessage, uint8 Mode = 0) const override;
    UFUNCTION(BlueprintCallable, Category = Weapon)
    AProjectXVehicle* GetVehicle() const;
    UFUNCTION(BlueprintCallable, Category = Weapon)
    UVehicleSeatComponent* GetSeat() const;
    UFUNCTION()
    bool ShouldProcessViewRotation() const;
    void SetSeatOwner(UVehicleSeatComponent* NewSeatOwner);
    void ProcessViewRotation();
    void UpdateRotation(FRotator& Rotation, FRotator& DeltaRotation, float DeltaTime);
    void GetInterpolatedRotation(FRotator& Rotation, const FRotator& Target, float DeltaTime);
    void ClampRotation(FRotator& Rotation);
 
    virtual void PlayWeaponFireEffects(uint8 BurstCounter = 0);
 
protected:
    virtual void ProcessViewRotation(float DeltaTime, FRotator& OutViewRotation, FRotator& OutDeltaRot, bool& bUseDefaultProcess);
    virtual TArray<AActor*> GetIgnoredActors() override;
 
    UPROPERTY(Replicated)
    AProjectXVehicle* VehicleOwner = NULL;
    UPROPERTY(Replicated)
    UVehicleSeatComponent* SeatOwner = NULL;
    /*lock the rotation of the weapon*/
    UPROPERTY(EditDefaultsOnly, Category = "Vehicle Weapon")
    bool bLockRotation = false;
 
    /* clamp the rotation around the z axis*/
    UPROPERTY(EditDefaultsOnly, Category = "Vehicle Weapon", meta = (EditCondition="bLockRotation"))
    float YawClamp = -1.f;
    /* clamp the rotation updwards around the x axis*/
    UPROPERTY(EditDefaultsOnly, Category = "Vehicle Weapon", meta = (EditCondition="bLockRotation"))
    float PitchClampUp = -1.f;
    /* clamp the rotation downawards around the x axis*/
    UPROPERTY(EditDefaultsOnly, Category = "Vehicle Weapon", meta = (EditCondition = "bLockRotation"))
    float PitchClampDown = -1.f;
    /* use the rotation rate*/
    UPROPERTY(EditDefaultsOnly, Category = "Vehicle Weapon")
    bool bRotationToRate = false;
    /* Smooth the rotation rate*/
    UPROPERTY(EditDefaultsOnly, Category = "Vehicle Weapon")
    bool bUseSmoothRotation = true;
    /* rate at which the player can change rotation*/
    UPROPERTY(EditDefaultsOnly, Category = "Vehicle Weapon", meta = (EditCondition="bRotationToRate"))
    float RotationRate = -1.f;
    /* Speed at which we smoothly interpolate when the rotation is not constant*/
    UPROPERTY(EditDefaultsOnly, Category = "Vehicle Weapon", meta = (EditCondition = "bRotationToRate && bUseSmoothRotation"))
    float SmoothRotationRate = 7.0f;
    /* If the dot between the target rotation and the current rotations forward vectors is smaller than this, we'll use the smooth rotation approach to smooth out choppy rotation updates */
    UPROPERTY(EditDefaultsOnly, Category = "Vehicle Weapon", meta = (EditCondition = "bRotationToRate && bUseSmoothRotation"))
    float SmoothThresholdDot = 0.95f;
 
    UPROPERTY()
    FRotator RelativeRotation = FRotator(ForceInit);
    UPROPERTY()
    float PitchRotationRate = 0.f;
    UPROPERTY()
    float YawRotationRate = 0.f;
 
    FDelegateHandle ViewUpdateHandle;
};