CWangTiler Class Reference

Wang tiler. More...

#include <WangTiler.h>

Public Member Functions
	CWangTiler (size_t w, size_t h)
	Constructor. More...
	~CWangTiler ()
	Destructor. More...
void	Generate ()
	Generate tiling. More...
const size_t	GetWidth () const
	Get width in tiles. More...
const size_t	GetHeight () const
	Get height in tiles. More...
const size_t	operator() (size_t i, size_t j) const
	Get tile index. More...

Private Member Functions
UINT	Match (UINT x, UINT y)
	Choose random tile. More...

Private Attributes
UINT **	m_nTile = nullptr
	Array of tile indices. More...
size_t	m_nWidth = 0
	Array width in tiles. More...
size_t	m_nHeight = 0
	Array height in tiles. More...
std::default_random_engine	m_stdRandom
	Pseudo-random number generator. More...

Detailed Description

The Wang tiler generates a pseudo-random rectangular array of tile indices into a set of 8 Wang tiles that seamlessly tile the plane.

Definition at line 37 of file WangTiler.h.

Constructor & Destructor Documentation

CWangTiler()

CWangTiler::CWangTiler	(	size_t	w,
		size_t	h
	)

Set the pseudo-random number generator seed to timeGetTime(), the number of milliseconds since Windows last rebooted. This should be sufficiently unpredictable to make a good seed. Allocate memory for the tile array m_nTile.

Parameters

w	Width in tiles.
h	Height in tiles.

Definition at line 37 of file WangTiler.cpp.

~CWangTiler()

CWangTiler::~CWangTiler

(

)

Deallocate memory from the tile array m_nTile.

Definition at line 52 of file WangTiler.cpp.

Member Function Documentation

Generate()

void CWangTiler::Generate

(

)

Generate a Wang tiling of width m_nWidth and height m_nHeight into m_nTile using m_stdRandom as a source of randomness.

Definition at line 72 of file WangTiler.cpp.

GetHeight()

const size_t CWangTiler::GetHeight

(

)

const

Reader function for m_nHeight.

Returns

m_nHeight

Definition at line 107 of file WangTiler.cpp.

GetWidth()

const size_t CWangTiler::GetWidth

(

)

const

Reader function for m_nWidth.

Returns

m_nWidth

Definition at line 100 of file WangTiler.cpp.

Match()

UINT CWangTiler::Match ( UINT  x, UINT  y  )

private

Get a pseudo-random tile that matches tiles above and to the left.

Parameters

x	Index of the tile to the left.
y	Index of the tile above.

Returns

Index of a tile that matches tiles above and to the left.

Definition at line 64 of file WangTiler.cpp.

operator()()

const size_t CWangTiler::operator()	(	size_t	i,
		size_t	j
	)		const

Get tile index from m_nTile.

Parameters

i	Row number.
j	Column number.

Returns

m_nTile[i][j].

Definition at line 93 of file WangTiler.cpp.

Member Data Documentation

m_nHeight

size_t CWangTiler::m_nHeight = 0

private

Definition at line 42 of file WangTiler.h.

m_nTile

UINT** CWangTiler::m_nTile = nullptr

private

Definition at line 39 of file WangTiler.h.

m_nWidth

size_t CWangTiler::m_nWidth = 0

private

Definition at line 41 of file WangTiler.h.

m_stdRandom

std::default_random_engine CWangTiler::m_stdRandom

private

Definition at line 44 of file WangTiler.h.