File size: 4,578 Bytes
7fd553e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | // Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "GameFeatureAction_WorldActionBase.h"
#include "Abilities/GameplayAbility.h"
#include "AbilitySystem/LyraAbilitySet.h"
#include "GameFeatureAction_AddAbilities.generated.h"
struct FWorldContext;
class UInputAction;
class UAttributeSet;
class UDataTable;
struct FComponentRequestHandle;
class ULyraAbilitySet;
USTRUCT(BlueprintType)
struct FLyraAbilityGrant
{
GENERATED_BODY()
// Type of ability to grant
UPROPERTY(EditAnywhere, BlueprintReadOnly, meta=(AssetBundles="Client,Server"))
TSoftClassPtr<UGameplayAbility> AbilityType;
// Input action to bind the ability to, if any (can be left unset)
// UPROPERTY(EditAnywhere, BlueprintReadOnly)
// TSoftObjectPtr<UInputAction> InputAction;
};
USTRUCT(BlueprintType)
struct FLyraAttributeSetGrant
{
GENERATED_BODY()
// Ability set to grant
UPROPERTY(EditAnywhere, BlueprintReadOnly, meta=(AssetBundles="Client,Server"))
TSoftClassPtr<UAttributeSet> AttributeSetType;
// Data table referent to initialize the attributes with, if any (can be left unset)
UPROPERTY(EditAnywhere, BlueprintReadOnly, meta=(AssetBundles="Client,Server"))
TSoftObjectPtr<UDataTable> InitializationData;
};
USTRUCT()
struct FGameFeatureAbilitiesEntry
{
GENERATED_BODY()
// The base actor class to add to
UPROPERTY(EditAnywhere, Category="Abilities")
TSoftClassPtr<AActor> ActorClass;
// List of abilities to grant to actors of the specified class
UPROPERTY(EditAnywhere, Category="Abilities")
TArray<FLyraAbilityGrant> GrantedAbilities;
// List of attribute sets to grant to actors of the specified class
UPROPERTY(EditAnywhere, Category="Attributes")
TArray<FLyraAttributeSetGrant> GrantedAttributes;
// List of ability sets to grant to actors of the specified class
UPROPERTY(EditAnywhere, Category="Attributes", meta=(AssetBundles="Client,Server"))
TArray<TSoftObjectPtr<const ULyraAbilitySet>> GrantedAbilitySets;
};
//////////////////////////////////////////////////////////////////////
// UGameFeatureAction_AddAbilities
/**
* GameFeatureAction responsible for granting abilities (and attributes) to actors of a specified type.
*/
UCLASS(MinimalAPI, meta = (DisplayName = "Add Abilities"))
class UGameFeatureAction_AddAbilities final : public UGameFeatureAction_WorldActionBase
{
GENERATED_BODY()
public:
//~ Begin UGameFeatureAction interface
virtual void OnGameFeatureActivating(FGameFeatureActivatingContext& Context) override;
virtual void OnGameFeatureDeactivating(FGameFeatureDeactivatingContext& Context) override;
//~ End UGameFeatureAction interface
//~ Begin UObject interface
#if WITH_EDITOR
virtual EDataValidationResult IsDataValid(class FDataValidationContext& Context) const override;
#endif
//~ End UObject interface
/** */
UPROPERTY(EditAnywhere, Category="Abilities", meta=(TitleProperty="ActorClass", ShowOnlyInnerProperties))
TArray<FGameFeatureAbilitiesEntry> AbilitiesList;
private:
struct FActorExtensions
{
TArray<FGameplayAbilitySpecHandle> Abilities;
TArray<UAttributeSet*> Attributes;
TArray<FLyraAbilitySet_GrantedHandles> AbilitySetHandles;
};
struct FPerContextData
{
TMap<AActor*, FActorExtensions> ActiveExtensions;
TArray<TSharedPtr<FComponentRequestHandle>> ComponentRequests;
};
TMap<FGameFeatureStateChangeContext, FPerContextData> ContextData;
//~ Begin UGameFeatureAction_WorldActionBase interface
virtual void AddToWorld(const FWorldContext& WorldContext, const FGameFeatureStateChangeContext& ChangeContext) override;
//~ End UGameFeatureAction_WorldActionBase interface
void Reset(FPerContextData& ActiveData);
void HandleActorExtension(AActor* Actor, FName EventName, int32 EntryIndex, FGameFeatureStateChangeContext ChangeContext);
void AddActorAbilities(AActor* Actor, const FGameFeatureAbilitiesEntry& AbilitiesEntry, FPerContextData& ActiveData);
void RemoveActorAbilities(AActor* Actor, FPerContextData& ActiveData);
template<class ComponentType>
ComponentType* FindOrAddComponentForActor(AActor* Actor, const FGameFeatureAbilitiesEntry& AbilitiesEntry, FPerContextData& ActiveData)
{
//@TODO: Just find, no add?
return Cast<ComponentType>(FindOrAddComponentForActor(ComponentType::StaticClass(), Actor, AbilitiesEntry, ActiveData));
}
UActorComponent* FindOrAddComponentForActor(UClass* ComponentType, AActor* Actor, const FGameFeatureAbilitiesEntry& AbilitiesEntry, FPerContextData& ActiveData);
};
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