#include "CoreMinimal.h"
#include "Detour/DetourLargeWorldCoordinates.h"
#include "HAL/PlatformMath.h"

Macros
#define	DT_STATS STATS

Functions
General helper functions
template<class T >
void	dtSwap (T &a, T &b)

template<class T >
T	dtMin (T a, T b)

dtReal	dtMin (dtReal a, dtReal b)

template<class T >
T	dtMax (T a, T b)

dtReal	dtMax (dtReal a, dtReal b)

template<class T >
T	dtAbs (T a)

template<class T >
T	dtSqr (T a)

template<class T >
T	dtClamp (T v, T mn, T mx)

dtReal	dtClamp (dtReal v, dtReal mn, dtReal mx)

float	dtFloor (float x)

double	dtFloor (double x)

float	dtCeil (float x)

double	dtCeil (double x)

float	dtSin (float x)

double	dtSin (double x)

float	dtCos (float x)

double	dtCos (double x)

float	dtAtan2 (float x, float y)

double	dtAtan2 (double x, double y)

float	dtSqrt (float x)

double	dtSqrt (double x)

float	dtfMod (float x, float y)

double	dtfMod (double x, double y)

float	dtLerp (float a, float b, float t)

Vector helper functions.
void	dtVcross (dtReal dest, const dtReal v1, const dtReal *v2)

dtReal	dtVdot (const dtReal v1, const dtReal v2)

void	dtVmad (dtReal dest, const dtReal v1, const dtReal *v2, const dtReal s)

void	dtVlerp (dtReal dest, const dtReal v1, const dtReal *v2, const dtReal t)

void	dtVadd (dtReal dest, const dtReal v1, const dtReal *v2)

void	dtVsub (dtReal dest, const dtReal v1, const dtReal *v2)

void	dtVscale (dtReal dest, const dtReal v, const dtReal t)

void	dtVmin (dtReal mn, const dtReal v)

void	dtVmax (dtReal mx, const dtReal v)

void	dtVset (dtReal *dest, const dtReal x, const dtReal y, const dtReal z)

void	dtVcopy (dtReal dest, const dtReal a)

dtReal	dtVlen (const dtReal *v)

dtReal	dtVlenSqr (const dtReal *v)

dtReal	dtVdist (const dtReal v1, const dtReal v2)

dtReal	dtVdistSqr (const dtReal v1, const dtReal v2)

dtReal	dtVdist2D (const dtReal v1, const dtReal v2)

dtReal	dtVdist2DSqr (const dtReal v1, const dtReal v2)

void	dtVnormalize (dtReal *v)

bool	dtVisEqual (const unsigned short a, const unsigned short b)

bool	dtVequal (const dtReal p0, const dtReal p1)

dtReal	dtVdot2D (const dtReal u, const dtReal v)

dtReal	dtVperp2D (const dtReal u, const dtReal v)

Computational geometry helper functions.
dtReal	dtTriArea2D (const dtReal a, const dtReal b, const dtReal *c)

bool	dtOverlapQuantBounds (const unsigned short amin[3], const unsigned short amax[3], const unsigned short bmin[3], const unsigned short bmax[3])

bool	dtOverlapBounds (const dtReal amin, const dtReal amax, const dtReal bmin, const dtReal bmax)

void	dtClosestPtPointTriangle (dtReal closest, const dtReal p, const dtReal a, const dtReal b, const dtReal *c)

bool	dtClosestHeightPointTriangle (const dtReal p, const dtReal a, const dtReal b, const dtReal c, dtReal &h)

bool	dtIntersectSegmentPoly2D (const dtReal p0, const dtReal p1, const dtReal *verts, int nverts, dtReal &tmin, dtReal &tmax, int &segMin, int &segMax)

bool	dtIntersectSegSeg2D (const dtReal ap, const dtReal aq, const dtReal bp, const dtReal bq, dtReal &s, dtReal &t)

bool	dtPointInPolygon (const dtReal pt, const dtReal verts, const int nverts)

bool	dtDistancePtPolyEdgesSqr (const dtReal pt, const dtReal verts, const int nverts, dtReal ed, dtReal et)

dtReal	dtDistancePtSegSqr2D (const dtReal pt, const dtReal p, const dtReal *q, dtReal &t)

dtReal	dtDistancePtSegSqr (const dtReal pt, const dtReal p, const dtReal *q)

void	dtCalcPolyCenter (dtReal tc, const unsigned short idx, int nidx, const dtReal *verts)

bool	dtOverlapPolyPoly2D (const dtReal polya, const int npolya, const dtReal polyb, const int npolyb)

Miscellanious functions.
enum	dtRotation { DT_ROTATE_0 , DT_ROTATE_90 , DT_ROTATE_180 , DT_ROTATE_270 }

unsigned int	dtNextPow2 (unsigned int v)

unsigned int	dtIlog2 (unsigned int v)

int	dtAlign (int x)

int	dtOppositeTile (int side)

void	dtSwapByte (unsigned char a, unsigned char b)

void	dtSwapEndian (unsigned short *v)

void	dtSwapEndian (short *v)

void	dtSwapEndian (unsigned int *v)

void	dtSwapEndian (int *v)

void	dtSwapEndian (unsigned long long int *v)

void	dtSwapEndian (long long int *v)

void	dtSwapEndian (float *v)

void	dtSwapEndian (double *v)

void	dtRandomPointInConvexPoly (const dtReal pts, const int npts, dtReal areas, const dtReal s, const dtReal t, dtReal *out)

dtRotation	dtSelectRotation (dtReal rotationDeg)

void	dtVRot90 (dtReal dest, const dtReal v, const dtRotation rot)

void	dtVRot90 (unsigned short dest, const unsigned short v, const dtRotation rot)

void	dtRotate90 (dtReal dest, const dtReal v, const dtReal *center, const dtRotation rot)

void	dtRotate90 (unsigned short dest, const unsigned short v, const unsigned short *center, const dtRotation rot)

Macro Definition Documentation

◆ DT_STATS

#define DT_STATS STATS

Enumeration Type Documentation

◆ dtRotation

enum dtRotation

Enumerator
DT_ROTATE_0
DT_ROTATE_90
DT_ROTATE_180
DT_ROTATE_270

Function Documentation

◆ dtAbs()

template<class T >

T dtAbs ( T a )

inline

Returns the absolute value.

Parameters

[in] a The value.

Returns: The absolute value of the specified value.

◆ dtAlign()

int dtAlign ( int x )

inline

◆ dtAtan2() [1/2]

double dtAtan2	(	double	x,
		double	y
	)

inline

◆ dtAtan2() [2/2]

float dtAtan2	(	float	x,
		float	y
	)

inline

◆ dtCalcPolyCenter()

void dtCalcPolyCenter	(	dtReal *	tc,
		const unsigned short *	idx,
		int	nidx,
		const dtReal *	verts
	)

Derives the centroid of a convex polygon.

Parameters

[out]	tc	The centroid of the polgyon. [(x, y, z)]
[in]	idx	The polygon indices. [(vertIndex) * `nidx`]
[in]	nidx	The number of indices in the polygon. [Limit: >= 3]
[in]	verts	The polygon vertices. [(x, y, z) * vertCount]

◆ dtCeil() [1/2]

double dtCeil ( double x )

inline

◆ dtCeil() [2/2]

float dtCeil ( float x )

inline

◆ dtClamp() [1/2]

dtReal dtClamp	(	dtReal	v,
		dtReal	mn,
		dtReal	mx
	)

inline

◆ dtClamp() [2/2]

template<class T >

T dtClamp	(	T	v,
		T	mn,
		T	mx
	)

inline

Clamps the value to the specified range.

Parameters

[in]	v	The value to clamp.
[in]	mn	The minimum permitted return value.
[in]	mx	The maximum permitted return value.

Returns: The value, clamped to the specified range.

◆ dtClosestHeightPointTriangle()

bool dtClosestHeightPointTriangle	(	const dtReal *	p,
		const dtReal *	a,
		const dtReal *	b,
		const dtReal *	c,
		dtReal &	h
	)

Derives the y-axis height of the closest point on the triangle from the specified reference point.

Parameters

[in]	p	The reference point from which to test. [(x, y, z)]
[in]	a	Vertex A of triangle ABC. [(x, y, z)]
[in]	b	Vertex B of triangle ABC. [(x, y, z)]
[in]	c	Vertex C of triangle ABC. [(x, y, z)]
[out]	h	The resulting height.

◆ dtClosestPtPointTriangle()

void dtClosestPtPointTriangle	(	dtReal *	closest,
		const dtReal *	p,
		const dtReal *	a,
		const dtReal *	b,
		const dtReal *	c
	)

Derives the closest point on a triangle from the specified reference point.

Parameters

[out]	closest	The closest point on the triangle.
[in]	p	The reference point from which to test. [(x, y, z)]
[in]	a	Vertex A of triangle ABC. [(x, y, z)]
[in]	b	Vertex B of triangle ABC. [(x, y, z)]
[in]	c	Vertex C of triangle ABC. [(x, y, z)]

◆ dtCos() [1/2]

double dtCos ( double x )

inline

◆ dtCos() [2/2]

float dtCos ( float x )

inline

◆ dtDistancePtPolyEdgesSqr()

bool dtDistancePtPolyEdgesSqr	(	const dtReal *	pt,
		const dtReal *	verts,
		const int	nverts,
		dtReal *	ed,
		dtReal *	et
	)

◆ dtDistancePtSegSqr()

dtReal dtDistancePtSegSqr	(	const dtReal *	pt,
		const dtReal *	p,
		const dtReal *	q
	)

◆ dtDistancePtSegSqr2D()

dtReal dtDistancePtSegSqr2D	(	const dtReal *	pt,
		const dtReal *	p,
		const dtReal *	q,
		dtReal &	t
	)

◆ dtFloor() [1/2]

double dtFloor ( double x )

inline

◆ dtFloor() [2/2]

float dtFloor ( float x )

inline

◆ dtfMod() [1/2]

double dtfMod	(	double	x,
		double	y
	)

inline

◆ dtfMod() [2/2]

float dtfMod	(	float	x,
		float	y
	)

inline

◆ dtIlog2()

unsigned int dtIlog2 ( unsigned int v )

inline

◆ dtIntersectSegmentPoly2D()

bool dtIntersectSegmentPoly2D	(	const dtReal *	p0,
		const dtReal *	p1,
		const dtReal *	verts,
		int	nverts,
		dtReal &	tmin,
		dtReal &	tmax,
		int &	segMin,
		int &	segMax
	)

◆ dtIntersectSegSeg2D()

bool dtIntersectSegSeg2D	(	const dtReal *	ap,
		const dtReal *	aq,
		const dtReal *	bp,
		const dtReal *	bq,
		dtReal &	s,
		dtReal &	t
	)

◆ dtLerp()

float dtLerp	(	float	a,
		float	b,
		float	t
	)

inline

◆ dtMax() [1/2]

dtReal dtMax	(	dtReal	a,
		dtReal	b
	)

inline

◆ dtMax() [2/2]

template<class T >

T dtMax	(	T	a,
		T	b
	)

inline

Returns the maximum of two values.

Parameters

[in]	a	Value A
[in]	b	Value B

Returns: The maximum of the two values.

◆ dtMin() [1/2]

dtReal dtMin	(	dtReal	a,
		dtReal	b
	)

inline

◆ dtMin() [2/2]

template<class T >

T dtMin	(	T	a,
		T	b
	)

inline

Returns the minimum of two values.

Parameters

[in]	a	Value A
[in]	b	Value B

Returns: The minimum of the two values.

◆ dtNextPow2()

unsigned int dtNextPow2 ( unsigned int v )

inline

◆ dtOppositeTile()

int dtOppositeTile ( int side )

inline

◆ dtOverlapBounds()

bool dtOverlapBounds	(	const dtReal *	amin,
		const dtReal *	amax,
		const dtReal *	bmin,
		const dtReal *	bmax
	)

inline

Determines if two axis-aligned bounding boxes overlap.

Parameters

[in]	amin	Minimum bounds of box A. [(x, y, z)]
[in]	amax	Maximum bounds of box A. [(x, y, z)]
[in]	bmin	Minimum bounds of box B. [(x, y, z)]
[in]	bmax	Maximum bounds of box B. [(x, y, z)]

Returns: True if the two AABB's overlap.

See also: dtOverlapQuantBounds

◆ dtOverlapPolyPoly2D()

bool dtOverlapPolyPoly2D	(	const dtReal *	polya,
		const int	npolya,
		const dtReal *	polyb,
		const int	npolyb
	)

Determines if the two convex polygons overlap on the xz-plane.

Parameters

[in]	polya	Polygon A vertices. [(x, y, z) * `npolya`]
[in]	npolya	The number of vertices in polygon A.
[in]	polyb	Polygon B vertices. [(x, y, z) * `npolyb`]
[in]	npolyb	The number of vertices in polygon B.

Returns: True if the two polygons overlap.

All vertices are projected onto the xz-plane, so the y-values are ignored.

◆ dtOverlapQuantBounds()

bool dtOverlapQuantBounds	(	const unsigned short	amin[3],
		const unsigned short	amax[3],
		const unsigned short	bmin[3],
		const unsigned short	bmax[3]
	)

inline

Determines if two axis-aligned bounding boxes overlap.

Parameters

[in]	amin	Minimum bounds of box A. [(x, y, z)]
[in]	amax	Maximum bounds of box A. [(x, y, z)]
[in]	bmin	Minimum bounds of box B. [(x, y, z)]
[in]	bmax	Maximum bounds of box B. [(x, y, z)]

Returns: True if the two AABB's overlap.

See also: dtOverlapBounds

◆ dtPointInPolygon()

bool dtPointInPolygon	(	const dtReal *	pt,
		const dtReal *	verts,
		const int	nverts
	)

Determines if the specified point is inside the convex polygon on the xz-plane.

Parameters

[in]	pt	The point to check. [(x, y, z)]
[in]	verts	The polygon vertices. [(x, y, z) * `nverts`]
[in]	nverts	The number of vertices. [Limit: >= 3]

Returns: True if the point is inside the polygon.

All points are projected onto the xz-plane, so the y-values are ignored.

◆ dtRandomPointInConvexPoly()

void dtRandomPointInConvexPoly	(	const dtReal *	pts,
		const int	npts,
		dtReal *	areas,
		const dtReal	s,
		const dtReal	t,
		dtReal *	out
	)

◆ dtRotate90() [1/2]

void dtRotate90	(	dtReal *	dest,
		const dtReal *	v,
		const dtReal *	center,
		const dtRotation	rot
	)

Rotate vector around center position by increments of 90 degrees.

Parameters

[out]	dest	The result position. [(x, y, z)]
[in]	v	The vector to rotate. [(x, y, z)]
[in]	center	The center point. [(x, y, z)]
[in]	rot	The rotation enum value.

◆ dtRotate90() [2/2]

void dtRotate90	(	unsigned short *	dest,
		const unsigned short *	v,
		const unsigned short *	center,
		const dtRotation	rot
	)

Rotate vector around center position by increments of 90 degrees.

Parameters

[out]	dest	The result position. [(x, y, z)]
[in]	v	The vector to rotate. [(x, y, z)]
[in]	center	The center point. [(x, y, z)]
[in]	rot	The rotation enum value.

◆ dtSelectRotation()

dtRotation dtSelectRotation ( dtReal rotationDeg )

Select a 90 degree increment value from an input angle in degree.

Parameters

[in] rotationDeg The desired rotation in degree.

Returns: The rotation enum value.

◆ dtSin() [1/2]

double dtSin ( double x )

inline

◆ dtSin() [2/2]

float dtSin ( float x )

inline

◆ dtSqr()

template<class T >

T dtSqr ( T a )

inline

Returns the square of the value.

Parameters

[in] a The value.

Returns: The square of the value.

◆ dtSqrt() [1/2]

double dtSqrt ( double x )

inline

◆ dtSqrt() [2/2]

float dtSqrt ( float x )

inline

◆ dtSwap()

template<class T >

void dtSwap	(	T &	a,
		T &	b
	)

inline

Swaps the values of the two parameters.

Parameters

[in,out]	a	Value A
[in,out]	b	Value B

◆ dtSwapByte()

void dtSwapByte	(	unsigned char *	a,
		unsigned char *	b
	)

inline

◆ dtSwapEndian() [1/8]

void dtSwapEndian ( double * v )

inline

◆ dtSwapEndian() [2/8]

void dtSwapEndian ( float * v )

inline

◆ dtSwapEndian() [3/8]

void dtSwapEndian ( int * v )

inline

◆ dtSwapEndian() [4/8]

void dtSwapEndian ( long long int * v )

inline

◆ dtSwapEndian() [5/8]

void dtSwapEndian ( short * v )

inline

◆ dtSwapEndian() [6/8]

void dtSwapEndian ( unsigned int * v )

inline

◆ dtSwapEndian() [7/8]

void dtSwapEndian ( unsigned long long int * v )

inline

◆ dtSwapEndian() [8/8]

void dtSwapEndian ( unsigned short * v )

inline

◆ dtTriArea2D()

dtReal dtTriArea2D	(	const dtReal *	a,
		const dtReal *	b,
		const dtReal *	c
	)

inline

Derives the signed xz-plane area of the triangle ABC, or the relationship of line AB to point C.

Parameters

[in]	a	Vertex A. [(x, y, z)]
[in]	b	Vertex B. [(x, y, z)]
[in]	c	Vertex C. [(x, y, z)]

Returns: The signed xz-plane area of the triangle.

The vertices are projected onto the xz-plane, so the y-values are ignored.

This is a low cost function than can be used for various purposes. Its main purpose is for point/line relationship testing.

In all cases: A value of zero indicates that all vertices are collinear or represent the same point. (On the xz-plane.)

When used for point/line relationship tests, AB usually represents a line against which the C point is to be tested. In this case:

A positive value indicates that point C is to the left of line AB, looking from A toward B.
A negative value indicates that point C is to the right of lineAB, looking from A toward B.

When used for evaluating a triangle:

The absolute value of the return value is two times the area of the triangle when it is projected onto the xz-plane.

A positive return value indicates:

The vertices are wrapped in the normal Detour wrap direction.
The triangle's 3D face normal is in the general up direction.

A negative return value indicates:

The vertices are reverse wrapped. (Wrapped opposite the normal Detour wrap direction.)
The triangle's 3D face normal is in the general down direction.

◆ dtVadd()

void dtVadd	(	dtReal *	dest,
		const dtReal *	v1,
		const dtReal *	v2
	)

inline

Performs a vector addition. (v1 + v2)

Parameters

[out]	dest	The result vector. [(x, y, z)]
[in]	v1	The base vector. [(x, y, z)]
[in]	v2	The vector to add to `v1`. [(x, y, z)]

◆ dtVcopy()

void dtVcopy	(	dtReal *	dest,
		const dtReal *	a
	)

inline

Performs a vector copy.

Parameters

[out]	dest	The result. [(x, y, z)]
[in]	a	The vector to copy. [(x, y, z)]

◆ dtVcross()

void dtVcross	(	dtReal *	dest,
		const dtReal *	v1,
		const dtReal *	v2
	)

inline

Derives the cross product of two vectors. (v1 x v2)

Parameters

[out]	dest	The cross product. [(x, y, z)]
[in]	v1	A Vector [(x, y, z)]
[in]	v2	A vector [(x, y, z)]

◆ dtVdist()

dtReal dtVdist	(	const dtReal *	v1,
		const dtReal *	v2
	)

inline

Returns the distance between two points.

Parameters

[in]	v1	A point. [(x, y, z)]
[in]	v2	A point. [(x, y, z)]

Returns: The distance between the two points.

◆ dtVdist2D()

dtReal dtVdist2D	(	const dtReal *	v1,
		const dtReal *	v2
	)

inline

Derives the distance between the specified points on the xz-plane.

Parameters

[in]	v1	A point. [(x, y, z)]
[in]	v2	A point. [(x, y, z)]

Returns: The distance between the point on the xz-plane.

The vectors are projected onto the xz-plane, so the y-values are ignored.

◆ dtVdist2DSqr()

dtReal dtVdist2DSqr	(	const dtReal *	v1,
		const dtReal *	v2
	)

inline

Derives the square of the distance between the specified points on the xz-plane.

Parameters

[in]	v1	A point. [(x, y, z)]
[in]	v2	A point. [(x, y, z)]

Returns: The square of the distance between the point on the xz-plane.

◆ dtVdistSqr()

dtReal dtVdistSqr	(	const dtReal *	v1,
		const dtReal *	v2
	)

inline

Returns the square of the distance between two points.

Parameters

[in]	v1	A point. [(x, y, z)]
[in]	v2	A point. [(x, y, z)]

Returns: The square of the distance between the two points.

◆ dtVdot()

dtReal dtVdot	(	const dtReal *	v1,
		const dtReal *	v2
	)

inline

Derives the dot product of two vectors. (v1 . v2)

Parameters

[in]	v1	A Vector [(x, y, z)]
[in]	v2	A vector [(x, y, z)]

Returns: The dot product.

◆ dtVdot2D()

dtReal dtVdot2D	(	const dtReal *	u,
		const dtReal *	v
	)

inline

Derives the dot product of two vectors on the xz-plane. (u . v)

Parameters

[in]	u	A vector [(x, y, z)]
[in]	v	A vector [(x, y, z)]

Returns: The dot product on the xz-plane.

The vectors are projected onto the xz-plane, so the y-values are ignored.

◆ dtVequal()

bool dtVequal	(	const dtReal *	p0,
		const dtReal *	p1
	)

inline

Performs a 'sloppy' colocation check of the specified points.

Parameters

[in]	p0	A point. [(x, y, z)]
[in]	p1	A point. [(x, y, z)]

Returns: True if the points are considered to be at the same location.

Basically, this function will return true if the specified points are close enough to eachother to be considered colocated.

◆ dtVisEqual()

bool dtVisEqual	(	const unsigned short *	a,
		const unsigned short *	b
	)

inline

Returns true if the vectors are the same.

Parameters

[in]	a	A vector. [(x, y, z)]
[in]	b	A vector. [(x, y, z)]

◆ dtVlen()

dtReal dtVlen ( const dtReal * v )

inline

Derives the scalar length of the vector.

Parameters

[in] v The vector. [(x, y, z)]

Returns: The scalar length of the vector.

◆ dtVlenSqr()

dtReal dtVlenSqr ( const dtReal * v )

inline

Derives the square of the scalar length of the vector. (len * len)

Parameters

[in] v The vector. [(x, y, z)]

Returns: The square of the scalar length of the vector.

◆ dtVlerp()

void dtVlerp	(	dtReal *	dest,
		const dtReal *	v1,
		const dtReal *	v2,
		const dtReal	t
	)

inline

Performs a linear interpolation between two vectors. (v1 toward v2)

Parameters

[out]	dest	The result vector. [(x, y, x)]
[in]	v1	The starting vector.
[in]	v2	The destination vector.
[in]	t	The interpolation factor. [Limits: 0 <= value <= 1.0]

◆ dtVmad()

void dtVmad	(	dtReal *	dest,
		const dtReal *	v1,
		const dtReal *	v2,
		const dtReal	s
	)

inline

Performs a scaled vector addition. (v1 + (v2 * s))

Parameters

[out]	dest	The result vector. [(x, y, z)]
[in]	v1	The base vector. [(x, y, z)]
[in]	v2	The vector to scale and add to `v1`. [(x, y, z)]
[in]	s	The amount to scale `v2` by before adding to `v1`.

◆ dtVmax()

void dtVmax	(	dtReal *	mx,
		const dtReal *	v
	)

inline

Selects the maximum value of each element from the specified vectors.

Parameters

[in,out]	mx	A vector. (Will be updated with the result.) [(x, y, z)]
[in]	v	A vector. [(x, y, z)]

◆ dtVmin()

void dtVmin	(	dtReal *	mn,
		const dtReal *	v
	)

inline

Selects the minimum value of each element from the specified vectors.

Parameters

[in,out]	mn	A vector. (Will be updated with the result.) [(x, y, z)]
[in]	v	A vector. [(x, y, z)]

◆ dtVnormalize()

void dtVnormalize ( dtReal * v )

inline

Normalizes the vector.

Parameters

[in,out] v The vector to normalize. [(x, y, z)]

◆ dtVperp2D()

dtReal dtVperp2D	(	const dtReal *	u,
		const dtReal *	v
	)

inline

Derives the xz-plane 2D perp product of the two vectors. (uz*vx - ux*vz)

Parameters

[in]	u	The LHV vector [(x, y, z)]
[in]	v	The RHV vector [(x, y, z)]

Returns: The dot product on the xz-plane.

The vectors are projected onto the xz-plane, so the y-values are ignored.

◆ dtVRot90() [1/2]

void dtVRot90	(	dtReal *	dest,
		const dtReal *	v,
		const dtRotation	rot
	)

Rotate by 90 degree increments.

Parameters

[out]	dest	The result position. [(x, y, z)]
[in]	v	The vector to rotate. [(x, y, z)]
[in]	rot	The rotation enum value.

◆ dtVRot90() [2/2]

void dtVRot90	(	unsigned short *	dest,
		const unsigned short *	v,
		const dtRotation	rot
	)

Rotate by 90 degree increments.

Parameters

[out]	dest	The result position. [(x, y, z)]
[in]	v	The vector to rotate. [(x, y, z)]
[in]	rot	The rotation enum value.

◆ dtVscale()

void dtVscale	(	dtReal *	dest,
		const dtReal *	v,
		const dtReal	t
	)

inline

Scales the vector by the specified value. (v * t)

Parameters

[out]	dest	The result vector. [(x, y, z)]
[in]	v	The vector to scale. [(x, y, z)]
[in]	t	The scaling factor.

◆ dtVset()

void dtVset	(	dtReal *	dest,
		const dtReal	x,
		const dtReal	y,
		const dtReal	z
	)

inline

Sets the vector elements to the specified values.

Parameters

[out]	dest	The result vector. [(x, y, z)]
[in]	x	The x-value of the vector.
[in]	y	The y-value of the vector.
[in]	z	The z-value of the vector.

◆ dtVsub()

void dtVsub	(	dtReal *	dest,
		const dtReal *	v1,
		const dtReal *	v2
	)

inline

Performs a vector subtraction. (v1 - v2)

Parameters

[out]	dest	The result vector. [(x, y, z)]
[in]	v1	The base vector. [(x, y, z)]
[in]	v2	The vector to subtract from `v1`. [(x, y, z)]

Macros

Functions

Miscellanious functions.

Macro Definition Documentation

◆ DT_STATS

Enumeration Type Documentation

◆ dtRotation

Function Documentation

◆ dtAbs()

◆ dtAlign()

◆ dtAtan2() [1/2]

◆ dtAtan2() [2/2]

◆ dtCalcPolyCenter()

◆ dtCeil() [1/2]

◆ dtCeil() [2/2]

◆ dtClamp() [1/2]

◆ dtClamp() [2/2]

◆ dtClosestHeightPointTriangle()

◆ dtClosestPtPointTriangle()

◆ dtCos() [1/2]

◆ dtCos() [2/2]

◆ dtDistancePtPolyEdgesSqr()

◆ dtDistancePtSegSqr()

◆ dtDistancePtSegSqr2D()

◆ dtFloor() [1/2]

◆ dtFloor() [2/2]

◆ dtfMod() [1/2]

◆ dtfMod() [2/2]

◆ dtIlog2()

◆ dtIntersectSegmentPoly2D()

◆ dtIntersectSegSeg2D()

◆ dtLerp()

◆ dtMax() [1/2]

◆ dtMax() [2/2]

◆ dtMin() [1/2]

◆ dtMin() [2/2]

◆ dtNextPow2()

◆ dtOppositeTile()

◆ dtOverlapBounds()

◆ dtOverlapPolyPoly2D()

◆ dtOverlapQuantBounds()

◆ dtPointInPolygon()

◆ dtRandomPointInConvexPoly()

◆ dtRotate90() [1/2]

◆ dtRotate90() [2/2]

◆ dtSelectRotation()

◆ dtSin() [1/2]

◆ dtSin() [2/2]

◆ dtSqr()

◆ dtSqrt() [1/2]

◆ dtSqrt() [2/2]

◆ dtSwap()

◆ dtSwapByte()

◆ dtSwapEndian() [1/8]

◆ dtSwapEndian() [2/8]

◆ dtSwapEndian() [3/8]

◆ dtSwapEndian() [4/8]

◆ dtSwapEndian() [5/8]

◆ dtSwapEndian() [6/8]

◆ dtSwapEndian() [7/8]

◆ dtSwapEndian() [8/8]

◆ dtTriArea2D()

◆ dtVadd()

◆ dtVcopy()

◆ dtVcross()

◆ dtVdist()

◆ dtVdist2D()

◆ dtVdist2DSqr()

◆ dtVdistSqr()

◆ dtVdot()

◆ dtVdot2D()

◆ dtVequal()

◆ dtVisEqual()

◆ dtVlen()

◆ dtVlenSqr()

◆ dtVlerp()

◆ dtVmad()

◆ dtVmax()

◆ dtVmin()

◆ dtVnormalize()