GA_Skill_StarFall.h

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// Fill out your copyright notice in the Description page of Project Settings.
 
#pragma once
 
#include "GAS/GA/GA_SkillBase.h"
#include "Level/Selector/ProjectilePathSelector.h"
#include "Projectile/ProjectileBase.h"
#include "GA_Skill_StarFall.generated.h"
 
class AMainPlayerCharacter;
class AWeaponProjectile;
class UProjectileLauncherComponent;
class UTargetSelector;
class UTickableProjectileActionBase;
struct FTargetSelectionResult;
 
UCLASS()
class CK_UE_API UGA_Skill_StarFall : public UGA_SkillBase
{
    GENERATED_BODY()
 
public:
    UGA_Skill_StarFall();
 
public:
    virtual bool CanActivateAbility(const FGameplayAbilitySpecHandle Handle, const FGameplayAbilityActorInfo* ActorInfo, const FGameplayTagContainer* SourceTags = nullptr, const FGameplayTagContainer* TargetTags = nullptr, FGameplayTagContainer* OptionalRelevantTags = nullptr) const override;
    virtual void ActivateAbility(const FGameplayAbilitySpecHandle Handle, const FGameplayAbilityActorInfo* ActorInfo, const FGameplayAbilityActivationInfo ActivationInfo, const FGameplayEventData* TriggerEventData) override;
    virtual void EndAbility(const FGameplayAbilitySpecHandle Handle, const FGameplayAbilityActorInfo* ActorInfo, const FGameplayAbilityActivationInfo ActivationInfo, bool bReplicateEndAbility, bool bWasCancelled) override;
 
protected:
    virtual void ApplyCombatData() override;
 
protected:
    UFUNCTION()
    void OnLauncherProjectileLaunched(const AProjectileBase* Projectile);
 
    UFUNCTION()
    void OnLauncherProjectileDeactivated(AProjectileBase* Projectile, EProjectileDeactivationOption Option);
 
    UFUNCTION()
    void LaunchSpawnedProjectile();
 
protected:
    bool ComputeImpactPoint(const AMainPlayerCharacter* Player, const FTargetSelectionResult& TargetResult, FWeaponRequestImpactResult& OutImpactResult) const;
    bool ComputeLaunchPath(const AMainPlayerCharacter* Player, const FWeaponRequestImpactResult& ImpactResult, FVector& OutFrom, FVector& OutDirection, FVector& OutImpactPoint) const;
    bool GetWeaponProjectileClassType(FGameplayTag& OutWeaponTag, const TSubclassOf<AWeaponProjectile>*& OutFoundClass) const;
    bool ChangeTargetingAndActivateStrike(FGameplayAbilitySpecHandle Handle, const FGameplayAbilityActorInfo* ActorInfo, FGameplayAbilityActivationInfo ActivationInfo, FGameplayTag RequestedWeaponTag);
    void SubscribeLauncher(UProjectileLauncherComponent* Launcher);
    void UnsubscribeLauncher();
 
protected:
    UPROPERTY(Transient)
    float MaxImpactDistance = 0.0f;
 
    UPROPERTY(Transient)
    float ImpactObstructionOffset = 0.0f;
 
    UPROPERTY(Transient)
    float SpawnHeightAboveImpact = 0.0f;
 
    UPROPERTY(Transient)
    float SpawnLateralOffset = 0.0f;
 
    UPROPERTY(Transient)
    float SpawnForwardOffset = 0.0f;
 
    UPROPERTY(Transient)
    float WeaponLaunchDelay = 0.0f;
 
private:
    UPROPERTY(Transient)
    TObjectPtr<UTargetSelector> TargetSelector;
 
    UPROPERTY(Transient)
    TObjectPtr<UTickableProjectileActionBase> PullBehavior;
 
    UPROPERTY(Transient)
    TWeakObjectPtr<UProjectileLauncherComponent> CachedLauncher;
 
    UPROPERTY(Transient)
    TWeakObjectPtr<AProjectileBase> SpawnedProjectile;
 
    UPROPERTY(Transient)
    TSubclassOf<AWeaponProjectile> PendingProjectileClass;
 
    UPROPERTY(Transient)
    TWeakObjectPtr<UProjectileLauncherComponent> PendingLauncher;
 
private:
    bool bLauncherSubscribed = false;
 
    FVector PendingLaunchFrom = FVector::ZeroVector;
    FVector PendingLaunchDirection = FVector::ForwardVector;
 
    FProjectilePathSelector PathSelector;
};