KillCameraComponent.h

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// Copyright Blue Isle Studios Inc 2018. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Components/ActorComponent.h"
#include "ReactsToMatchEvents.h"
#include "KillCameraComponent.generated.h"
 
class AKillCameraActor;
class AProjectXCharacter;
class AProjectXPlayerState;
class UWidgetComponent;
class UActorComponent;
class ASpectatorPawn;
class IKillCameraInterface;
 
DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FKillCamEndSignature,float, BlendTime);
DECLARE_DYNAMIC_MULTICAST_DELEGATE(FKillCamFocusSignature);
 
UCLASS( ClassGroup=(Custom), BlueprintType, Blueprintable, meta=(BlueprintSpawnableComponent) )
class PROJECTX_API UKillCameraComponent : public UActorComponent, public IReactsToMatchEvents
{
    GENERATED_UCLASS_BODY()
 
public:
    UFUNCTION(BlueprintCallable, Category = "Kill Camera")
    class AProjectXPlayerController* GetPlayerController() const;
    UFUNCTION(BlueprintCallable, Category = "Kill Camera")
    void EndKillCamera(bool bFireEndEvent = false);
    UFUNCTION(BlueprintCallable, Category = "Kill Camera")
    AKillCameraActor* GetKillCameraActor() const { return KillCameraActor.IsValid() ? KillCameraActor.Get() : NULL; }
 
    virtual void MatchEnded() override;
    virtual void EndPlay(const EEndPlayReason::Type EndPlayReason) override;
    virtual void TickComponent(float DeltaTime, enum ELevelTick TickType, FActorComponentTickFunction *ThisTickFunction) override;
    void InitializeKillCamera(AProjectXCharacter* Killed, AActor* Killer, AProjectXPlayerState* KillerState, const FDamageEvent& DamageEvent);
 
    UPROPERTY(BlueprintAssignable, Category = "Kill Camera|Events")
    FKillCamEndSignature OnKillCamEnd;
 
    UPROPERTY(BlueprintAssignable,BlueprintCallable)
    FKillCamFocusSignature OnKillCamFocusVictim;
    UPROPERTY(BlueprintAssignable, BlueprintCallable)
    FKillCamFocusSignature OnKillCamFocusKiller;
 
protected:
    UFUNCTION(BlueprintImplementableEvent, Category = "Kill Camera", meta = (DisplayName = "Initialize Kill Camera"))
    void OnKillCameraInitialized(AProjectXCharacter* Killed, AActor* Killer, AProjectXPlayerState* KillerState, TSubclassOf<UDamageType> DamageType) const;
    UFUNCTION(BlueprintImplementableEvent, Category = "Kill Camera", meta = (DisplayName = "On Spectator Pawn Available"))
    void OnSpectatorPawnAvailable(ASpectatorPawn* SpectatorPawn) const;
    UFUNCTION(BlueprintImplementableEvent, Category = "Kill Camera", meta = (DisplayName = "On Killer Camera Component Registered"))
    void OnKillCamComponentRegistered(UActorComponent* ObjectRegistered) const;
    UFUNCTION(BlueprintCallable, Category = "Kill Camera")
    bool CanLookAtKiller() const;
    AKillCameraActor* SpawnKillCameraActor(AActor* Actor);
    void CheckAndWaitForSpectatorPawn();
    void SpectatorPawnAvailable(ASpectatorPawn* SpectatorPawn);
    void RegisterKillCamComponent(UActorComponent* Component);
    void CleanUpComponents();
 
    UPROPERTY(EditDefaultsOnly, Category = "Kill Camera")
    TSubclassOf<UWidgetComponent> KillCamWidgetComponentClass = NULL;
    UPROPERTY(EditDefaultsOnly, Category = "Kill Camera")
    float BlendToBeaconTime = 1.0f;
    UPROPERTY(EditDefaultsOnly, Category = "Kill Camera")
    float WaitTimeBeforeBlendingToSpawnBecon = 2.0f;
 
    FTimerHandle WaitToBlendTimerHandle;
 
    TArray<TWeakObjectPtr<UActorComponent>> KillCamComponents;
    TWeakObjectPtr<AActor> KilledActor = NULL;
    TWeakObjectPtr<AActor> KillerActor = NULL;
    TWeakObjectPtr<ASpectatorPawn> KillCamSpectatorPawn = NULL;
    TWeakObjectPtr<AKillCameraActor> KillCameraActor = NULL;
    TArray<TWeakObjectPtr<AActor>> NearbyKillCamInterfaces;
};