Data Structures
union	AT_Vec3
	Groups three floats to represent a vector of size 3. More...
struct	AT_Vec3i
	Groups three integers to represent a vector of size 3. More...

Functions
static AT_Vec3	AT_vec3 (float x, float y, float z)
	AT_Vec3 constructor for a given point.
static AT_Vec3	AT_vec3_zero (void)
	AT_Vec3 constructor for a zero initialised vector.
static AT_Vec3	AT_vec3_add (AT_Vec3 a, AT_Vec3 b)
	Adds two AT_Vec3.
static AT_Vec3	AT_vec3_sub (AT_Vec3 a, AT_Vec3 b)
	Subtracts two AT_Vec3.
static AT_Vec3	AT_vec3_mul (AT_Vec3 a, AT_Vec3 b)
	Product of two AT_Vec3.
static AT_Vec3	AT_vec3_inv (AT_Vec3 v)
	Calculates the inverse of a vector.
static AT_Vec3	AT_vec3_scale (AT_Vec3 v, float s)
	Scales an AT_Vec3 by a given scalar.
static float	AT_vec3_dot (AT_Vec3 a, AT_Vec3 b)
	Performs vector dot operation on two given AT_Vec3.
static AT_Vec3	AT_vec3_cross (AT_Vec3 a, AT_Vec3 b)
	Performs vector cross multiplication on two given AT_Vec3.
static float	AT_vec3_length (AT_Vec3 v)
	Calculate the length of an AT_Vec3.
static AT_Vec3	AT_vec3_normalize (AT_Vec3 v)
	Normalise a given vector to be within 0.0 -> 1.0.
static float	AT_vec3_distance (AT_Vec3 a, AT_Vec3 b)
	Calculates the distance between two AT_Vec3's.
static float	AT_vec3_distance_sq (AT_Vec3 a, AT_Vec3 b)
	Calculates the squared distance between two AT_Vec3's.

Detailed Description

Function Documentation

◆ AT_vec3()

AT_Vec3 AT_vec3	(	float	x,
		float	y,
		float	z )

AT_Vec3 constructor for a given point.

Parameters

x	x coord in world coordinates.
y	y coord in world coordinates.
z	z coord in world coordinates.

Return values

AT_Vec3 Vector with coordinate values of those given in function call.

◆ AT_vec3_add()

AT_Vec3 AT_vec3_add	(	AT_Vec3	a,
		AT_Vec3	b )

Adds two AT_Vec3.

Parameters

a	First vector in the addition.
b	Second vector in the addition.

Return values

AT_Vec3 The result of the vector addition.

◆ AT_vec3_cross()

AT_Vec3 AT_vec3_cross	(	AT_Vec3	a,
		AT_Vec3	b )

Performs vector cross multiplication on two given AT_Vec3.

Parameters

a	First vector in the cross multiplication.
b	Second vector in the cross multiplication.

Return values

AT_Vec3 The result of the vector cross multiplication.

◆ AT_vec3_distance()

float AT_vec3_distance	(	AT_Vec3	a,
		AT_Vec3	b )

Calculates the distance between two AT_Vec3's.

Parameters

a	First point on the distance line.
b	Second point on the distance line.

Return values

float The distance between two AT_Vec3's.

◆ AT_vec3_distance_sq()

float AT_vec3_distance_sq	(	AT_Vec3	a,
		AT_Vec3	b )

Calculates the squared distance between two AT_Vec3's.

Parameters

a	First point on the distance line.
b	Second point on the distance line.

Return values

float The squared distance between two AT_Vec3's.

◆ AT_vec3_dot()

float AT_vec3_dot	(	AT_Vec3	a,
		AT_Vec3	b )

Performs vector dot operation on two given AT_Vec3.

Parameters

a	First vector in the dot operation.
b	Second vector in the dot operation.

Return values

float The result of the vector dot operation.

◆ AT_vec3_inv()

AT_Vec3 AT_vec3_inv ( AT_Vec3 v )

Calculates the inverse of a vector.

Parameters

v	Vector to be inverted.

Return values

AT_Vec3 The inverse of the input vector.

◆ AT_vec3_length()

float AT_vec3_length ( AT_Vec3 v )

Calculate the length of an AT_Vec3.

Parameters

v	Vector whose length is to be returned.

Return values

float The length of the given AT_Vec3.

◆ AT_vec3_mul()

AT_Vec3 AT_vec3_mul	(	AT_Vec3	a,
		AT_Vec3	b )

Product of two AT_Vec3.

Parameters

a	First vector in the multiplication.
b	Second vector in the multiplication.

Return values

AT_Vec3 The result of the vector multiplication.

◆ AT_vec3_normalize()

AT_Vec3 AT_vec3_normalize ( AT_Vec3 v )

Normalise a given vector to be within 0.0 -> 1.0.

Parameters

v	Vector to be normalised.

Return values

AT_Vec3 A normalised AT_Vec3.

◆ AT_vec3_scale()

AT_Vec3 AT_vec3_scale	(	AT_Vec3	v,
		float	s )

Scales an AT_Vec3 by a given scalar.

Parameters

v	The AT_Vec3 to be scaled.
s	The scalar multiple.

Return values

AT_Vec3 The result of the scaling the vector by s.

◆ AT_vec3_sub()

AT_Vec3 AT_vec3_sub	(	AT_Vec3	a,
		AT_Vec3	b )

Subtracts two AT_Vec3.

Parameters

a	First vector in the subtraction.
b	Second vector in the subtraction.

Return values

AT_Vec3 The result of the vector subtraction.

◆ AT_vec3_zero()

AT_Vec3 AT_vec3_zero ( void )

AT_Vec3 constructor for a zero initialised vector.

Return values

AT_Vec3 Vector with all values initialised at 0.

Data Structures

Functions

Detailed Description

Function Documentation

◆ AT_vec3()

◆ AT_vec3_add()

◆ AT_vec3_cross()

◆ AT_vec3_distance()

◆ AT_vec3_distance_sq()

◆ AT_vec3_dot()

◆ AT_vec3_inv()

◆ AT_vec3_length()

◆ AT_vec3_mul()

◆ AT_vec3_normalize()

◆ AT_vec3_scale()

◆ AT_vec3_sub()

◆ AT_vec3_zero()