Terrain::OccupancyQuadTree Class Reference

#include <occupancyquadtree.h>

Classes
struct	Node

Public Member Functions
	OccupancyQuadTree ()
	constructor
	~OccupancyQuadTree ()
	destructor
void	Setup (uint textureSize, uint maxSize, uint minSize)
	setup with a world size and a biggest allocation size
Math::uint2	Allocate (uint size)
	allocate a region, return region
bool	Deallocate (const Math::uint2 coord, uint size)
	deallocate region
bool	IsOccupied (const Math::uint2 coord, uint size)
	check if region is alloced
void	Clear ()
	Clear the tree.
void	DebugRender (ImDrawList *drawList, ImVec2 offset, float scale)
	debug render

Private Member Functions
bool	RecursiveAllocate (Node *node, uint size, Math::uint2 &outCoord)
	recursively traverse tree to allocate node from tree
bool	RecursiveDeallocate (Node *node, Math::uint2 coord, uint size)
	recursively traverse tree and deallocate
bool	RecursiveSearch (Node *node, Math::uint2 coord, uint size)
	recursively traverse tree and find if allocated
void	RecursiveDebugRender (Node *node, ImDrawList *drawList, ImVec2 offset, float scale)
	recursively debug render

Private Attributes
Memory::ArenaAllocator< sizeof(Node) *64 >	allocator
Util::FixedArray< Util::FixedArray< Node > >	topLevelNodes
uint	minSize

Constructor & Destructor Documentation

OccupancyQuadTree()

Terrain::OccupancyQuadTree::OccupancyQuadTree ( )

inline

constructor

~OccupancyQuadTree()

Terrain::OccupancyQuadTree::~OccupancyQuadTree ( )

inline

destructor

Member Function Documentation

Allocate()

Math::uint2 Terrain::OccupancyQuadTree::Allocate ( uint size )

inline

allocate a region, return region

Clear()

void Terrain::OccupancyQuadTree::Clear ( )

inline

Clear the tree.

Deallocate()

bool Terrain::OccupancyQuadTree::Deallocate ( const Math::uint2 coord, uint size )

inline

deallocate region

DebugRender()

void Terrain::OccupancyQuadTree::DebugRender ( ImDrawList * drawList, ImVec2 offset, float scale )

inline

debug render

IsOccupied()

bool Terrain::OccupancyQuadTree::IsOccupied ( const Math::uint2 coord, uint size )

inline

check if region is alloced

RecursiveAllocate()

bool Terrain::OccupancyQuadTree::RecursiveAllocate ( OccupancyQuadTree::Node * node, uint size, Math::uint2 & outCoord )

inlineprivate

recursively traverse tree to allocate node from tree

RecursiveDeallocate()

bool Terrain::OccupancyQuadTree::RecursiveDeallocate ( Node * node, Math::uint2 coord, uint size )

inlineprivate

recursively traverse tree and deallocate

RecursiveDebugRender()

void Terrain::OccupancyQuadTree::RecursiveDebugRender ( Node * node, ImDrawList * drawList, ImVec2 offset, float scale )

inlineprivate

recursively debug render

RecursiveSearch()

bool Terrain::OccupancyQuadTree::RecursiveSearch ( Node * node, Math::uint2 coord, uint size )

inlineprivate

recursively traverse tree and find if allocated

Setup()

void Terrain::OccupancyQuadTree::Setup ( uint textureSize, uint maxSize, uint minSize )

inline

setup with a world size and a biggest allocation size

Member Data Documentation

allocator

Memory::ArenaAllocator<sizeof(Node) * 64> Terrain::OccupancyQuadTree::allocator

private

minSize

uint Terrain::OccupancyQuadTree::minSize

private

topLevelNodes

Util::FixedArray<Util::FixedArray<Node> > Terrain::OccupancyQuadTree::topLevelNodes

private

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The documentation for this class was generated from the following file:

• /github/workspace/code/render/terrain/occupancyquadtree.h