BooleanXor Class Reference
[Advanced]

Exclusive OR boolean operator for two shapes. More...

#include <BooleanXor.hpp>

Inheritance diagram for BooleanXor:

List of all members.

Public Member Functions
	BooleanXor (const Tag &tag)
virtual void	draw () const
virtual string	toString () const
Static Public Member Functions
static ShapeTraits	getTraits ()
Protected Member Functions
void	addPiece (list< Extent > &pieces, const Extent &piece)
virtual void	calculate ()
virtual void	calculateTangible ()
void	drawWhenNotOverlapped (Matrix &rotation) const
void	drawWhenOverlapped (Matrix &rotation) const
void	explode (const Extent &piece, int d, list< Extent > &pieces)
pair< Extent, Extent >	knife (const Extent &extent, float at, int on)
bool	isDrawn (float aDepth, float bDepth) const
virtual void	updateBufferPoints ()
virtual void	updateBufferNormals ()
virtual void	updateBufferCoords ()
Private Types
enum	{   ALL,   BEHIND,   FORWARD }
Private Attributes
GLfloat	points [BOOLEAN_XOR_COUNT][3]
GLfloat	coords [BOOLEAN_XOR_COUNT][3]
int	only
list< Extent >	pieces

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Detailed Description

Exclusive OR boolean operator for two shapes.

Vertex Attributes

• MCVertex
• MCNormal
• TexCoord0

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Constructor & Destructor Documentation

BooleanXor

(

const Tag &

tag

)

Sets the only attribute.

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Member Function Documentation

void addPiece	(	list< Extent > &	pieces,
		const Extent &	piece
	)			[protected]

Adds piece to pieces only if it's substantial.

void calculate

(

)

[protected, virtual]

Creates the pieces by knifing at the intersection point of each axis.

Reimplemented from Boolean.

void calculateTangible

(

)

[inline, protected, virtual]

Assumed to be always visible (for now).

Implements Boolean.

void draw

(

)

const [virtual]

Draw the pieces or one of the shapes according to overlap and depth.

Reimplemented from Boolean.

void drawWhenNotOverlapped

(

Matrix &

rotation

)

const [protected]

Draws one of the shapes according to depth.

void drawWhenOverlapped

(

Matrix &

rotation

)

const [protected]

Draw some of the pieces according to depth.

void explode	(	const Extent &	piece,
		int	d,
		list< Extent > &	pieces
	)			[protected]

Recursively splits a piece.

ShapeTraits getTraits

(

)

[static]

Returns:

list of attributes used in the shape.

Reimplemented from Hexahedron.

bool isDrawn	(	float	aDepth,
		float	bDepth
	)			const [protected]

Returns:

True if A should be drawn when compared to B.

pair< Extent, Extent > knife	(	const Extent &	extent,
		float	at,
		int	on
	)			[protected]

Returns:

Two pieces of extent cut at at along the on axis.

string toString

(

)

const [virtual]

Returns:

string representing the node.

Reimplemented from Boolean.

void updateBufferNormals

(

)

[protected, virtual]

Initializes the normals in the vertex buffer.

Reimplemented from Hexahedron.

void updateBufferPoints

(

)

[protected, virtual]

Initializes the points in the vertex buffer.

     6-------7
    /|      /|
   2-------3 |
   | 4-----|-5
   |/      |/
   0-------1
 

Reimplemented from Hexahedron.

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

• BooleanXor.hpp
• BooleanXor.cpp