CoreMath Namespace Reference

Functions
Vector2	mGetClosestPointOnLine (Vector2 &a, Vector2 &b, Vector2 &point)
	Returns a point on the given line AB that is closest to 'point'.
bool	mPointInRectangle (const Vector2 &point, const Vector2 &rectMin, const Vector2 &rectMax)
	Calculate point in rectangle.
bool	mLineRectangleIntersect (const Vector2 &startPoint, const Vector2 &endPoint, const Vector2 &rectMin, const Vector2 &rectMax, F32 *pTime=NULL)
	Calculate line/rectangle intersection.
F32	mGetRandomF (F32 from, F32 to)
	Random Float Range.
F32	mGetRandomF (void)
	Random Float.
S32	mGetRandomI (const S32 from, const S32 to)
	Random Integer Range.
S32	mGetRandomI (void)
	Random Integer.
void	mCalculateAABB (const b2Vec2 *const pAABBVertices, const b2Transform &xf, b2AABB *pAABB)
void	mCalculateOOBB (const b2Vec2 *const pAABBVertices, const b2Transform &xf, b2Vec2 *pOOBBVertices)
	Calculate an OOBB.
void	mCalculateInverseOOBB (const b2Vec2 *const pAABBVertices, const b2Transform &xf, b2Vec2 *pOOBBVertices)
	Calculate an OOBB.
b2AABB	mRectFtoAABB (const RectF &rect)
	Convert RectF to AABB.
void	mAABBtoOOBB (const b2AABB &aabb, b2Vec2 *pOOBBVertices)
	Convert AABB to OOBB.
void	mOOBBtoAABB (b2Vec2 *pOOBBVertices, b2AABB &aabb)
	Convert OOBB to AABB.
void	mRotateAABB (const b2AABB &aabb, const F32 &angle, b2AABB &transformedAABB)
	Rotate an AABB.
b2Vec2	mRotateAboutArbitraryPoint (const b2Transform &T, const b2Vec2 &v)

Variables
RandomLCG	gRandomGenerator

Function Documentation

mAABBtoOOBB()

void mAABBtoOOBB ( const b2AABB & aabb, b2Vec2 * pOOBBVertices )

inline

Convert AABB to OOBB.

mCalculateAABB()

void mCalculateAABB ( const b2Vec2 *const pAABBVertices, const b2Transform & xf, b2AABB * pAABB )

inline

mCalculateInverseOOBB()

void mCalculateInverseOOBB ( const b2Vec2 *const pAABBVertices, const b2Transform & xf, b2Vec2 * pOOBBVertices )

inline

Calculate an OOBB.

mCalculateOOBB()

void mCalculateOOBB ( const b2Vec2 *const pAABBVertices, const b2Transform & xf, b2Vec2 * pOOBBVertices )

inline

Calculate an OOBB.

mGetClosestPointOnLine()

Vector2 mGetClosestPointOnLine	(	Vector2 &	a,
		Vector2 &	b,
		Vector2 &	point )

Returns a point on the given line AB that is closest to 'point'.

Returns a point on the given line ab that is closest to 'point'.

Parameters

a	The start of the line.
b	The end of the line.
point	The point to test with

Returns

A Point2F of the nearest point that lies on the line

mGetRandomF() [1/2]

F32 mGetRandomF ( F32 from, F32 to )

inline

Random Float Range.

mGetRandomF() [2/2]

F32 mGetRandomF ( void )

inline

Random Float.

mGetRandomI() [1/2]

S32 mGetRandomI ( const S32 from, const S32 to )

inline

Random Integer Range.

mGetRandomI() [2/2]

S32 mGetRandomI ( void )

inline

Random Integer.

mLineRectangleIntersect()

bool mLineRectangleIntersect	(	const Vector2 &	startPoint,
		const Vector2 &	endPoint,
		const Vector2 &	rectMin,
		const Vector2 &	rectMax,
		F32 *	pTime )

Calculate line/rectangle intersection.

mOOBBtoAABB()

void mOOBBtoAABB ( b2Vec2 * pOOBBVertices, b2AABB & aabb )

inline

Convert OOBB to AABB.

mPointInRectangle()

bool mPointInRectangle	(	const Vector2 &	point,
		const Vector2 &	rectMin,
		const Vector2 &	rectMax )

Calculate point in rectangle.

mRectFtoAABB()

b2AABB mRectFtoAABB ( const RectF & rect )

inline

Convert RectF to AABB.

mRotateAABB()

void mRotateAABB ( const b2AABB & aabb, const F32 & angle, b2AABB & transformedAABB )

inline

Rotate an AABB.

mRotateAboutArbitraryPoint()

b2Vec2 mRotateAboutArbitraryPoint ( const b2Transform & T, const b2Vec2 & v )

inline

Transform the incoming point 'v' by rotating it about the point (and by the amount) specified in the transform 'T'. NOTE: b2Math has a method called b2Mul() that is similar, but doesn't take into account the offset in T. So I made this.

Variable Documentation

gRandomGenerator

RandomLCG gRandomGenerator