Project02/ProjectFish/Plugins/Dialogue/Source/Dialogue/Private/DialogueAsset.cpp

// Fill out your copyright notice in the Description page of Project Settings.


#include "DialogueAsset.h"

#include "UObject/ObjectSaveContext.h"


bool UDialogueConditions::IsConditionMet_Implementation()
{
	return true;
}

void UDialogueAsset::BeginDialogue()
{
	CurrentNode = NodeDatas[0];
}

FText UDialogueAsset::GetNextNodeText()
{
	if (CurrentNode->OutputPins.Num() > 0 &&  CurrentNode->OutputPins[0]->Connections.Num() > 0)
	{
		UDialogueRuntimePin* Connection = CurrentNode->OutputPins[0]->Connections[0];
		UDialogueRuntimeNode* ConnectionParent = Connection->Parent;
		
		if (ConnectionParent->NodeType == EDialogueNodeType::NPC)
		{
			//处理下一个对话是npc的情况
			for (auto Pin: CurrentNode->OutputPins[0]->Connections)
			{
				UDialogueRuntimeNode* ConnectionNode = Pin->Parent;
				if (ConnectionNode->NodeData->Conditionses.Num() != 0)
				{
					//判断是否符合条件
					bool ConditionMet = false;
					for (auto Condition: ConnectionNode->NodeData->Conditionses)
					{
						ConditionMet  = ConditionMet || Condition->IsConditionMet();
					}
					if (ConditionMet)
					{
						CurrentNode = ConnectionNode;
						return ConnectionNode->NodeData->Text;
					}
				}
				else
				{
					CurrentNode = ConnectionNode;
					return ConnectionNode->NodeData->Text;
				}
				
			}
			
		}
		else if (ConnectionParent->NodeType == EDialogueNodeType::Player)
		{
			//处理下一个对话是玩家选项的情况
			TArray<FText> Options;
			for (UDialogueRuntimePin* Pin : CurrentNode->OutputPins[0]->Connections)
			{
				Options.Add(Pin->Parent->NodeData->Text);
			}
			OnNeedPlayerSelect.Broadcast(Options);
			//返回值不变
			return CurrentNode->NodeData->Text;
		}
	}
	else
	{
		OnDialogueComplete.Broadcast();
	}
	return FText::FromString(TEXT(""));
}

void UDialogueAsset::PlayerSelect(int32 index)
{
	CurrentNode = CurrentNode->OutputPins[0]->Connections[index]->Parent;
}

void UDialogueAsset::PreSave(FObjectPreSaveContext saveContext)
{
	if (OnPreSaveListener)
	{
		OnPreSaveListener();
	}
}