110 lines
2.8 KiB
C++
110 lines
2.8 KiB
C++
// Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.
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#pragma once
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#include "Engine/Content/BinaryAsset.h"
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#include "Engine/Visject/VisjectGraph.h"
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class BehaviorKnowledge;
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class BehaviorTree;
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class BehaviorTreeNode;
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class BehaviorTreeRootNode;
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/// <summary>
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/// Behavior Tree graph node.
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/// </summary>
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class BehaviorTreeGraphNode : public VisjectGraphNode<>
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{
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public:
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// Instance of the graph node.
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BehaviorTreeNode* Instance = nullptr;
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~BehaviorTreeGraphNode();
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};
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/// <summary>
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/// Behavior Tree graph.
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/// </summary>
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class BehaviorTreeGraph : public VisjectGraph<BehaviorTreeGraphNode>
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{
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friend BehaviorTree;
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public:
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// Instance of the graph root node.
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BehaviorTreeRootNode* Root = nullptr;
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// Total count of used nodes.
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int32 NodesCount = 0;
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// Total size of the nodes states memory.
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int32 NodesStatesSize = 0;
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// [VisjectGraph]
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void Clear() override;
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bool onNodeLoaded(Node* n) override;
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private:
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void Setup(BehaviorTree* tree);
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void SetupRecursive(Node& node);
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};
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/// <summary>
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/// Behavior Tree graph executor runtime.
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/// </summary>
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class BehaviorTreeExecutor : public VisjectExecutor
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{
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};
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/// <summary>
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/// Behavior Tree asset with AI logic graph.
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/// </summary>
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/// <seealso cref="BinaryAsset" />
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API_CLASS(NoSpawn, Sealed) class FLAXENGINE_API BehaviorTree : public BinaryAsset
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{
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DECLARE_BINARY_ASSET_HEADER(BehaviorTree, 1);
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public:
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/// <summary>
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/// The Behavior Tree graph.
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/// </summary>
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BehaviorTreeGraph Graph;
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/// <summary>
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/// Gets a specific node instance object from Behavior Tree.
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/// </summary>
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/// <param name="id">The unique node identifier (Visject surface).</param>
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/// <returns>The node instance or null if cannot get it.</returns>
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API_FUNCTION() BehaviorTreeNode* GetNodeInstance(uint32 id);
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/// <summary>
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/// Tries to load surface graph from the asset.
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/// </summary>
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/// <returns>The surface data or empty if failed to load it.</returns>
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API_FUNCTION() BytesContainer LoadSurface();
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#if USE_EDITOR
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/// <summary>
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/// Updates the graph surface (save new one, discard cached data, reload asset).
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/// </summary>
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/// <param name="data">Stream with graph data.</param>
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/// <returns>True if cannot save it, otherwise false.</returns>
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API_FUNCTION() bool SaveSurface(const BytesContainer& data);
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#endif
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private:
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#if USE_EDITOR
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void OnScriptsReloadStart();
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void OnScriptsReloadEnd();
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#endif
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public:
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// [BinaryAsset]
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void OnScriptingDispose() override;
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#if USE_EDITOR
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void GetReferences(Array<Guid>& output) const override;
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#endif
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protected:
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// [BinaryAsset]
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LoadResult load() override;
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void unload(bool isReloading) override;
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AssetChunksFlag getChunksToPreload() const override;
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};
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