Detailed Description

Represents the location of an image on an atlas.

Inheritance diagram for Blaze.AtlasLocation:

Public Member Functions
	AtlasLocation (TextureAtlas atlas, int x, int y, int width, int height)
	Creates a new location on the given atlas with the given size. More...

	AtlasLocation (int x, int y, int width, int height, float imageWidth, float imageHeight)
	Creates a new atlas location without an atlas. More...

	AtlasLocation (float imageWidth, float imageHeight)
	A fixed atlas location with 0->1 UV's. More...

void	UpdateFixed (float imageWidth, float imageHeight)
	Updates a fixed image location. More...

void	PreventDeallocation ()
	Blocks this location from ever getting deallocated from being no longer "in use". More...

bool	DecreaseUsage ()
	Called when an instance of the image goes offscreen. More...

void	Deselect ()
	Empties this location and frees it up for use by other textures. More...

void	AddToEmptySet ()
	Adds this location to the set of empty locations on the atlas. This allows other textures to use this space on the atlas. More...

int	FitFactor (int width, int height, int area)
	A value which represents how well the given image dimensions fit in this location. Select the location with this as close to zero as possible. It's essentially pixels wasted using this location. More...

void	Select (AtlasEntity image, int width, int height, int spacing)
	This texture has selected this location to fit into. This adds it to the atlas. More...

void	OptimiseSelect (AtlasLocation location)
	Used during the optimise process. This texture has selected this location to fit into. This adds it to the atlas. More...

float	GetU (float atPixel)
	Gets the horizontal component of the UV co-ordinate of the given pixel. More...

float	GetV (float atPixel)
	Gets the vertical component of the UV co-ordinate of the given pixel. More...

int	BottomLeftPixel ()
	The index in the atlas of the pixel in the bottom left corner of this location. More...

int	RowPixelDelta ()
	How many pixels should be gained to go up one row of pixels in the global atlas. More...

int	AtlasIndex (int x, int y)
	Converts a local pixel coordinate into a global atlas pixel index. More...

void	Flush ()
	Writes the texture to the pixels of the atlas. More...

void	AtlasChanged ()

Public Member Functions inherited from Blaze.UVBlock
	UVBlock ()

	UVBlock (UVBlock copy)

	UVBlock (float minX, float maxX, float minY, float maxY)

void	Write (Vector2[] buffer, int index)
	Writes out this block of UV's to the given buffer. More...

override string	ToString ()

Public Attributes
int	UsageCount
	The number of times this location is in use. More...

AtlasLocation	EmptyAfter
	If this location is empty (texture was removed), it's stored in a linked list. This is the element after this one in the list. More...

AtlasLocation	EmptyBefore
	If this location is empty (texture was removed), it's stored in a linked list. This is the element before this one in the list. More...

int	X
	The x coord in pixels of the left edge of the image from the left of the atlas. More...

int	Y
	The y coord in pixels of the bottom edge of the image from the bottom of the atlas. More...

int	Area
	The area of this image (width*height). More...

int	Width
	The width of the image in pixels. More...

int	Height
	The height of the image in pixels. More...

bool	Empty
	True if the texture in this location has been removed and it is now empty. More...

AtlasEntity	Image
	The image stored at this atlas location. More...

int	AtlasID
	The ID of the entity stored in this location. Same as Image.GetAtlasID(). More...

TextureAtlas	Atlas
	The atlas this location is on. More...

float	InvertedSizeX
	1/the atlas width. More...

float	InvertedSizeY
	1/the atlas height. More...

int	Spacing
	Active spacing on this location. More...

Public Attributes inherited from Blaze.UVBlock
float	MinX
	The min UV x coordinate. More...

float	MinY
	The min UV y coordinate. More...

float	MaxX
	The max UV x coordinate. More...

float	MaxY
	The max UV y coordinate. More...

Properties
override bool	Shared `[get]`
	True if this UV block is a globally shared one. More...

Properties inherited from Blaze.UVBlock
virtual bool	Shared `[get]`
	True if this UV block is a globally shared one. More...

Private Member Functions
void	BakeUV ()
	Figures out where the UV's are. Note: stored as Min and Max because it's most useful for rendering and memory usage. More...

Constructor & Destructor Documentation

Blaze.AtlasLocation.AtlasLocation	(	TextureAtlas	atlas,
		int	x,
		int	y,
		int	width,
		int	height
	)

inline

Creates a new location on the given atlas with the given size.

Parameters

atlas	The atlas this location refers to.
x	The x coordinate of the left edge of this location in pixels from the left.
y	The y coordinate of the bototm edfe of this location in pixels from the bottom.
width	The width of the location in pixels.
height	The height of the location in pixels.

Blaze.AtlasLocation.AtlasLocation	(	int	x,
		int	y,
		int	width,
		int	height,
		float	imageWidth,
		float	imageHeight
	)

inline

Creates a new atlas location without an atlas.

Parameters

x	The x coordinate of the left edge of this location in pixels from the left.
y	The y coordinate of the bototm edfe of this location in pixels from the bottom.
width	The width of the location in pixels.
height	The height of the location in pixels.
imageWidth	The width of the atlas.
imageHeight	The height of the atlas.

Blaze.AtlasLocation.AtlasLocation	(	float	imageWidth,
		float	imageHeight
	)

inline

A fixed atlas location with 0->1 UV's.

Member Function Documentation

void Blaze.AtlasLocation.AddToEmptySet ( )

inline

Adds this location to the set of empty locations on the atlas. This allows other textures to use this space on the atlas.

void Blaze.AtlasLocation.AtlasChanged ( )

inline

int Blaze.AtlasLocation.AtlasIndex	(	int	x,
		int	y
	)

inline

Converts a local pixel coordinate into a global atlas pixel index.

Parameters

x	The x coordinate of the pixel in pixels from the left edge.
y	The y coordinate of the pixel in pixels from the bottom edge.

Returns: The index in the atlas.

void Blaze.AtlasLocation.BakeUV ( )

inlineprivate

Figures out where the UV's are. Note: stored as Min and Max because it's most useful for rendering and memory usage.

int Blaze.AtlasLocation.BottomLeftPixel ( )

inline

The index in the atlas of the pixel in the bottom left corner of this location.

Returns: The index in the atlas.

bool Blaze.AtlasLocation.DecreaseUsage ( )

inline

Called when an instance of the image goes offscreen.

Returns: True if this location is now completely unused.

void Blaze.AtlasLocation.Deselect ( )

inline

Empties this location and frees it up for use by other textures.

int Blaze.AtlasLocation.FitFactor	(	int	width,
		int	height,
		int	area
	)

inline

A value which represents how well the given image dimensions fit in this location. Select the location with this as close to zero as possible. It's essentially pixels wasted using this location.

Parameters

width	The width of what you want to fit in this location.
height	The height of what you want to fit in this location.
area	width*height.

Returns: A number that should be as close to zero as possible.

void Blaze.AtlasLocation.Flush ( )

inline

Writes the texture to the pixels of the atlas.

float Blaze.AtlasLocation.GetU ( float atPixel)

inline

Gets the horizontal component of the UV co-ordinate of the given pixel.

Parameters

atPixel The pixel on the atlas to use.

Returns: The value as a float from 0->1.

float Blaze.AtlasLocation.GetV ( float atPixel)

inline

Gets the vertical component of the UV co-ordinate of the given pixel.

Parameters

atPixel The pixel on the atlas to use.

Returns: The value as a float from 0->1.

void Blaze.AtlasLocation.OptimiseSelect ( AtlasLocation location)

inline

Used during the optimise process. This texture has selected this location to fit into. This adds it to the atlas.

Parameters

location The new location to write this region to.

void Blaze.AtlasLocation.PreventDeallocation ( )

inline

Blocks this location from ever getting deallocated from being no longer "in use".

int Blaze.AtlasLocation.RowPixelDelta ( )

inline

How many pixels should be gained to go up one row of pixels in the global atlas.

Returns: The number of pixels.

void Blaze.AtlasLocation.Select	(	AtlasEntity	image,
		int	width,
		int	height,
		int	spacing
	)

inline

This texture has selected this location to fit into. This adds it to the atlas.

Parameters

texture	The texture that wants to go here.
width	The width of the texture in pixels.
height	The height of the texture in pixels.

void Blaze.AtlasLocation.UpdateFixed	(	float	imageWidth,
		float	imageHeight
	)

inline

Updates a fixed image location.

Member Data Documentation

int Blaze.AtlasLocation.Area

The area of this image (width*height).

TextureAtlas Blaze.AtlasLocation.Atlas

The atlas this location is on.

int Blaze.AtlasLocation.AtlasID

The ID of the entity stored in this location. Same as Image.GetAtlasID().

bool Blaze.AtlasLocation.Empty

True if the texture in this location has been removed and it is now empty.

AtlasLocation Blaze.AtlasLocation.EmptyAfter

If this location is empty (texture was removed), it's stored in a linked list. This is the element after this one in the list.

AtlasLocation Blaze.AtlasLocation.EmptyBefore

If this location is empty (texture was removed), it's stored in a linked list. This is the element before this one in the list.

int Blaze.AtlasLocation.Height

The height of the image in pixels.

AtlasEntity Blaze.AtlasLocation.Image

The image stored at this atlas location.

float Blaze.AtlasLocation.InvertedSizeX

1/the atlas width.

float Blaze.AtlasLocation.InvertedSizeY

1/the atlas height.

int Blaze.AtlasLocation.Spacing

Active spacing on this location.

int Blaze.AtlasLocation.UsageCount

The number of times this location is in use.

int Blaze.AtlasLocation.Width

The width of the image in pixels.

int Blaze.AtlasLocation.X

The x coord in pixels of the left edge of the image from the left of the atlas.

int Blaze.AtlasLocation.Y

The y coord in pixels of the bottom edge of the image from the bottom of the atlas.

Property Documentation

override bool Blaze.AtlasLocation.Shared

get

True if this UV block is a globally shared one.

Detailed Description

Public Member Functions

Public Attributes

Properties

Private Member Functions

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

Property Documentation