DialogueCompiler.h

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// Copyright Csaba Molnar, Daniel Butum. All Rights Reserved.
#pragma once
 
#include "CoreTypes.h"
#include "Kismet2/CompilerResultsLog.h"
#include "Containers/Queue.h"
 
class UDialogueGraphNode_Root;
class UDlgNode;
class UDlgDialogue;
class UDialogueGraphNode;
class UDlgSystemSettings;
 
class FDialogueCompilerContext
{
    friend UDlgDialogue;
 
public:
    FDialogueCompilerContext(UDlgDialogue* InDialogue, const UDlgSystemSettings* InSettings, FCompilerResultsLog& InMessageLog)
    : Dialogue(InDialogue), Settings(InSettings), MessageLog(InMessageLog)
    {}
 
    void Compile();
 
private:
    void PreCompileGraphNode(UDialogueGraphNode* GraphNode);
 
    void PostCompileGraphNode(UDialogueGraphNode* GraphNode);
 
    void CompileGraphNode(UDialogueGraphNode* GraphNode);
 
    void CompileGraph();
 
    bool GetPathToNode(const UDialogueGraphNode* SourceNode, const UDialogueGraphNode* TargetNode, TArray<const UDialogueGraphNode*>& OutPath);
 
    bool GetPathToNodeAsSet(const UDialogueGraphNode* SourceNode, const UDialogueGraphNode* TargetNode, TSet<const UDialogueGraphNode*>& OutNodesInPath);
 
    void SetEdgesCategorization();
 
    void PruneIsolatedNodes();
 
    void FixBrokenOldIndicesAndUpdateGUID();
 
    void SetNextAvailableIndexToNode(UDialogueGraphNode* GraphNode);
 
private:
    UDlgDialogue* Dialogue = nullptr;
 
    // Settings we will use
    const UDlgSystemSettings* Settings = nullptr;
 
    // TODO Use this
    FCompilerResultsLog& MessageLog;
 
    // Used when compiling:
    TArray<UDialogueGraphNode*> DialogueGraphNodes;
 
    TArray<UDlgNode*> ResultDialogueNodes;
 
    TSet<UDialogueGraphNode*> VisitedNodes;
 
    TQueue<UDialogueGraphNode*> Queue;
 
    TMap<int32, int32> IndicesHistory;
 
    UDialogueGraphNode_Root* GraphNodeRoot = nullptr;
 
    TMap<const UDialogueGraphNode*, const UDialogueGraphNode*> NodesPath;
 
    int32 NextAvailableIndex = INDEX_NONE;
 
    int32 NodeDepth = INDEX_NONE;
 
    int32 NodeUnvisitedChildrenNum = INDEX_NONE;
 
    int32 NodesNumberUntilDepthIncrease = INDEX_NONE;
 
    int32 NodesNumberNextDepth = INDEX_NONE;
};