AITask.h

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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "GameplayTask.h"
#include "UObject/Package.h"
#include "AITask.generated.h"
 
class AActor;
class AAIController;
 
UENUM()
enum class EAITaskPriority : uint8
{
    Lowest = 0,
    Low = 64, //FGameplayTasks::DefaultPriority / 2,
    AutonomousAI = 127, //FGameplayTasks::DefaultPriority,
    High = 192, //(1.5 * FGameplayTasks::DefaultPriority),
    Ultimate = 254,
};
 
UCLASS(Abstract, BlueprintType, MinimalAPI)
class UAITask : public UGameplayTask
{
    GENERATED_BODY()
protected:
 
    UPROPERTY(BlueprintReadOnly, Category="AI|Tasks")
    TObjectPtr<AAIController> OwnerController;
 
    AIMODULE_API virtual void Activate() override;
 
public:
    AIMODULE_API UAITask(const FObjectInitializer& ObjectInitializer);
 
    static AIMODULE_API AAIController* GetAIControllerForActor(AActor* Actor);
    AAIController* GetAIController() const { return OwnerController; };
 
    AIMODULE_API void InitAITask(AAIController& AIOwner, IGameplayTaskOwnerInterface& InTaskOwner, uint8 InPriority);
    AIMODULE_API void InitAITask(AAIController& AIOwner, IGameplayTaskOwnerInterface& InTaskOwner);
 
    AIMODULE_API void RequestAILogicLocking();
 
    template <class T>
    static T* NewAITask(AAIController& AIOwner, IGameplayTaskOwnerInterface& InTaskOwner, FName InstanceName = FName())
    {
        return NewAITask<T>(*T::StaticClass(), AIOwner, InTaskOwner, InstanceName);
    }
 
    template <class T>
    static T* NewAITask(AAIController& AIOwner, IGameplayTaskOwnerInterface& InTaskOwner, EAITaskPriority InPriority, FName InstanceName = FName())
    {
        return NewAITask<T>(*T::StaticClass(), AIOwner, InTaskOwner, InPriority, InstanceName);
    }
 
    template <class T>
    static T* NewAITask(AAIController& AIOwner, FName InstanceName = FName())
    {
        return NewAITask<T>(*T::StaticClass(), AIOwner, AIOwner, InstanceName);
    }
 
    template <class T>
    static T* NewAITask(AAIController& AIOwner, EAITaskPriority InPriority, FName InstanceName = FName())
    {
        return NewAITask<T>(*T::StaticClass(), AIOwner, AIOwner, InPriority, InstanceName);
    }
 
    template <class T>
    static T* NewAITask(const UClass& Class, AAIController& AIOwner, IGameplayTaskOwnerInterface& InTaskOwner, FName InstanceName = FName())
    {
        T* TaskInstance = NewObject<T>(GetTransientPackage(), &Class);
        TaskInstance->InstanceName = InstanceName;
        TaskInstance->InitAITask(AIOwner, InTaskOwner);
        return TaskInstance;
    }
 
    template <class T>
    static T* NewAITask(const UClass& Class, AAIController& AIOwner, IGameplayTaskOwnerInterface& InTaskOwner, EAITaskPriority InPriority, FName InstanceName = FName())
    {
        T* TaskInstance = NewObject<T>(GetTransientPackage(), &Class);
        TaskInstance->InstanceName = InstanceName;
        TaskInstance->InitAITask(AIOwner, InTaskOwner, (uint8)InPriority);
        return TaskInstance;
    }
};