MathTools Class Reference

Collection of Math Tools. More...

#include <MathTools.h>

Static Public Member Functions
static float	FastSqrt (float x)
	Calculate Sqrt without std::sqrt.
static float	RandFloat (float lower, float upper)
	Generates Random Floating Point Number using std::random_device.
static void	PointTowards (Matrix &world, Vect target)
	Points object towards target.
static float	DegToRad (float a)
	Converts angle in degrees to angle in radians.
static float	RadToDeg (float a)
	Converts angle in radians to angle in degrees.
static std::vector< Vect >	ScreenToWorldPersp (float x, float y)
	Takes a screen position and returns the world position at the near and far clip plane.
Translations
static void	ChangePos (Matrix &world, float x, float y, float z)
	Changes world position based on current position.
static void	SetPos (Matrix &world, float x, float y, float z)
	Sets world position to exact XYZ coordinates.
static float	GetXPos (const Matrix &world)
	Returns objects X Position.
static float	GetYPos (const Matrix &world)
	Returns objects Y Position.
static float	GetZPos (const Matrix &world)
	Returns objects Z Position.
Scaling
static void	ChangeScale (Matrix &world, float scaleFactor)
	Uniformly scales object, based on the objects current size * ScaleFactor.
static void	SetScale (Matrix &world, float scaleFactor)
	Sets object scaling uniformly to ScaleFactor.
static float	GetScaleFactor (const Matrix &world)
	Returns objects ScaleFactor assuming uniform scaling.
static float	GetScaleFactorImprecise (const Matrix &world)
	Returns objects ScaleFactor assuming uniform scaling using FastSqrt.
Rotations
static void	ChangeRotRad (Matrix &world, float x, float y, float z)
	Gets the angle of an object towards a point in radians.
static void	ChangeRotRadRev (Matrix &world, float x, float y, float z)
	Changes rotation in radians of object relative to current object: World * Rot.
static void	ChangeRotDeg (Matrix &world, float x, float y, float z)
	Changes rotation in degrees of object relative to current object: Rot * World.
static void	ChangeRotDegRev (Matrix &world, float x, float y, float z)
	Changes rotation in degrees of object relative to current object: World * Rot.
static void	SetRotRad (Matrix &world, float x, float y, float z)
	Sets rotation to an exact angle in radians based on XYZ.
static void	SetRotDeg (Matrix &world, float x, float y, float z)
	Sets rotation to an exact angle in degrees based on XYZ.
static float	GetRotXRad (const Matrix &world)
	Returns rotation of X in radians.
static float	GetRotYRad (const Matrix &world)
	Returns rotation of Y in radians.
static float	GetRotZRad (const Matrix &world)
	Returns rotation of Z in radians.
static float	GetRotXDeg (const Matrix &world)
	Returns rotation of X in degrees.
static float	GetRotYDeg (const Matrix &world)
	Returns rotation of Y in degrees.
static float	GetRotZDeg (const Matrix &world)
	Returns rotation of Z in degrees.

Detailed Description

Collection of Math Tools.