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watrabi
2025-10-28 14:05:46 -04:00
parent 977f1ff4b8
commit c93494f795
452 changed files with 47860 additions and 152 deletions
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App/util/SpanningTree.h
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/* Copyright 2003-2006 ROBLOX Corporation, All Rights Reserved */
#pragma once
#include "G3D/Array.h"
#include <set>
namespace RBX {
class SpanningNode;
class SpanningEdge;
class SpanningTree
{
private:
G3D::Array<SpanningEdge*> tempEdges;
int size;
static SpanningNode* lightParent(int testSide, SpanningNode* child, SpanningEdge*& answer, int& lightSide);
static SpanningNode* testEdgeToParent(int testSide, SpanningNode* child, SpanningEdge*& answer, int& lightSide);
static void findLightestUpstream(SpanningNode* n0, SpanningNode* n1, int d0, int d1, SpanningEdge*& answer, int& lightSide);
static void buildDownstreamTree(SpanningNode* root, std::set<SpanningNode*>& tree);
void removeEdge(SpanningEdge* edge);
void addEdge(SpanningEdge* edge, SpanningNode* newParent);
void findAndDeactivateEdges(SpanningNode* child, SpanningEdge* deactivate, G3D::Array<SpanningEdge*>& toActivate);
void activateEdges(SpanningNode* child, const G3D::Array<SpanningEdge*>& toActivate);
static void findLightestUpstream(SpanningEdge* e, SpanningEdge*& answer, int& lightSide);
static SpanningEdge* findHeaviestDownstream(SpanningNode* node, SpanningNode*& newParent);
void swapTree(SpanningEdge* deactivate, SpanningEdge* activate, SpanningNode* newParent);
void swap(SpanningEdge* deactivate, SpanningEdge* activate, SpanningNode* newParent);
protected:
/*implement*/ virtual void onSpanningEdgeAdding(SpanningEdge* edge, SpanningNode* child) {}
/*implement*/ virtual void onSpanningEdgeAdded(SpanningEdge* edge) {}
/*implement*/ virtual void onSpanningEdgeRemoving(SpanningEdge* edge) {}
/*implement*/ virtual void onSpanningEdgeRemoved(SpanningEdge* edge, SpanningNode* child) {}
/*implement*/ virtual bool validateTree(SpanningNode* root) {return true;}
public:
void insertSpanningTreeEdge(SpanningEdge* insertEdge);
void removeSpanningTreeEdge(SpanningEdge* removeEdge);
SpanningTree();
~SpanningTree();
};
} // namespace