eng::Sprite Class Reference

A Sprite is composed of quads oriented to viewplane and eye's up vector. More...

#include <eng_sprite.hh>

Inheritance diagram for eng::Sprite:

List of all members.

Public Types
typedef vector < shptr< Texture > >	Textures
Public Member Functions
	Sprite (const WorldVertex &pos, const fp width, const string textureName, const RGBA color)
	Sprite (const WorldVertex &pos, const fp width, Textures textures, const RGBA color)
	Sprite (const WorldVertex &pos, const fp width, SharedPtr< Texture > texture, const RGBA color)
	~Sprite ()
bool	IfTranslucent (void)
void	SetTextureFunc (const Texture::eFunc textureFunc)
const string	GetName (void)
bool	Reproducible (void)
void	Draw (void)
Protected Attributes
fp	mWidth
	width in World Space
Textures	mTextures
	container of Textures
Texture::eFunc	mTextureFunc
	default is REPLACE
RGBA	mColor
	applicability depends on texture setting
Private Types
typedef Object	Parent
Private Member Functions
SharedPtr0< Volume >	ComputeSpriteVolume (const WorldVertex &pos, const fp width)
void	ComputeEyeVertexs (EyeVertex ev[4])

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Detailed Description

A Sprite is composed of quads oriented to viewplane and eye's up vector.

See Commodore 64 programmer's manual for register definitions.

A Sprite is a set of quads that are oriented perpedicular to the viewplane. After orienting, effectively, Sprites become 2D. For an illusion, as the viewpoint is rolled, Sprites are counter-rolled. The Sprite's up vector stays synchronized with the Eye's up vector (in World Space). Quads are named "slices". Blended slices can create the illusion of a cloud that has volume. Slices are positioned in intervals on Z axis in Eye Space.

See implementation.html.

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Member Typedef Documentation

typedef Object eng::Sprite::Parent [private]

typedef vector<shptr<Texture> > eng::Sprite::Textures

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Constructor & Destructor Documentation

eng::Sprite::Sprite	(	const WorldVertex &	pos,
		const fp	width,
		const string	textureName,
		const RGBA	color
	)

eng::Sprite::Sprite	(	const WorldVertex &	pos,
		const fp	width,
		Textures	textures,
		const RGBA	color
	)

eng::Sprite::Sprite	(	const WorldVertex &	pos,
		const fp	width,
		SharedPtr< Texture >	texture,
		const RGBA	color
	)

eng::Sprite::~Sprite

(

)

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Member Function Documentation

bool eng::Sprite::IfTranslucent

(

void

)

[inline, virtual]

Reimplemented from eng::Object.

void eng::Sprite::SetTextureFunc

(

const Texture::eFunc

textureFunc

)

Sets a texture's function (replace,decal,etc). Allows Sprite to share the same texture but have different texture functions.

const string eng::Sprite::GetName

(

void

)

[inline, virtual]

Implements eng::Object.

bool eng::Sprite::Reproducible

(

void

)

[inline, virtual]

Implements eng::Object.

void eng::Sprite::Draw

(

void

)

[virtual]

Draw. See Commodore 64 programmer's manual for register definitions.

Reimplemented from eng::Object.

SharedPtr0<Volume> eng::Sprite::ComputeSpriteVolume	(	const WorldVertex &	pos,
		const fp	width
	)			[private]

void eng::Sprite::ComputeEyeVertexs

(

EyeVertex

ev[4]

)

[private]

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Member Data Documentation

fp eng::Sprite::mWidth [protected]

width in World Space

Textures eng::Sprite::mTextures [protected]

container of Textures

Texture::eFunc eng::Sprite::mTextureFunc [protected]

default is REPLACE

RGBA eng::Sprite::mColor [protected]

applicability depends on texture setting

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

• eng_sprite.hh
• eng_sprite.cc

Palomino 3D Engine documents generated by doxygen 1.5.3 on Fri Nov 23 11:26:25 2007