DlgNode_Selector.h

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// Copyright Csaba Molnar, Daniel Butum. All Rights Reserved.
#pragma once
#include "CoreMinimal.h"
 
#include "Nodes/DlgNode.h"
 
#include "DlgNode_Selector.generated.h"
 
 
UENUM(BlueprintType)
enum class EDlgNodeSelectorType : uint8
{
    // As soon as it is entered it selects its first satisfied child.
    First       UMETA(DisplayName = "First"),
 
    // As soon as it is entered it selects a satisfied child randomly.
    Random      UMETA(DisplayName = "Random"),
};
 
UCLASS(BlueprintType, ClassGroup = "Dialogue")
class DLGSYSTEM_API UDlgNode_Selector : public UDlgNode
{
    GENERATED_BODY()
 
public:
    UDlgNode_Selector() { bCheckChildrenOnEvaluation = true; }
 
    // @return a one line description of an object.
    FString GetDesc() override
    {
        switch (SelectorType)
        {
        case EDlgNodeSelectorType::First:
            return TEXT("Node without text and as soon as entered it selects its first satisfied child.\n It should have at least one (satisfied child), otherwise the Dialogue is terminated.");
        case EDlgNodeSelectorType::Random:
            return TEXT("Node without text and as soon as entered it selects a satisfied child randomly.\nIt should have at least one (satisfied child), otherwise the Dialogue is terminated.");
        default:
            return TEXT("UNHANDLED");
        }
    }
 
    //
    // Begin UDlgNode Interface.
    //
 
    bool HandleNodeEnter(UDlgContext& Context, TSet<const UDlgNode*> NodesEnteredWithThisStep) override;
 
#if WITH_EDITOR
    FString GetNodeTypeString() const override { return TEXT("Selector"); }
#endif
 
    //
    // Begin own functions
    //
 
    // Gets the Selector Type
    UFUNCTION(BlueprintPure, Category = "Dialogue|Node")
    EDlgNodeSelectorType GetSelectorType() const { return SelectorType; }
 
    // Sets the Selector Type
    void SetSelectorType(EDlgNodeSelectorType InType) { SelectorType = InType; }
 
    // Helper functions to get the names of some properties. Used by the DlgSystemEditor module.
    static FName GetMemberNameSelectorType() { return GET_MEMBER_NAME_CHECKED(UDlgNode_Selector, SelectorType); }
 
protected:
    // Defines the type of selector this node represents
    UPROPERTY(EditAnywhere, Category = "Dialogue|Node")
    EDlgNodeSelectorType SelectorType = EDlgNodeSelectorType::First;
};