vector2.c File Reference

#include <vecmat.h>

Go to the source code of this file.

Functions
vector2	vec2_zero (void)
	Returns a vector2 with both components set to 0.0f.
vector2	vec2_one (void)
	Returns a vector2 with both components set to 1.0f.
vector2	vec2_x_axis (const vm_float_t x)
	Returns a vector2 along the x-axis (y = 0.0f).
vector2	vec2_y_axis (const vm_float_t y)
	Returns a vector2 along the y-axis (x = 0.0f).
vector2	vec2_x_scale (const vm_float_t x)
	Returns a vector2 representing x-axis scaling (y = 1.0f).
vector2	vec2_y_scale (const vm_float_t y)
	Returns a vector2 representing y-axis scaling (x = 1.0f).
vector2	vec2_scale (const vector2 v, const vm_float_t s)
	Scales a vector by a scalar component-wise.
vector2	vec2_add (const vector2 a, const vector2 b)
	Adds two vectors component-wise.
vector2	vec2_sub (const vector2 a, const vector2 b)
	Subtracts the second vector from the first component-wise.
vector2	vec2_mul_scalar (const vector2 v, const vm_float_t s)
	Multiplies a vector by a scalar component-wise.
vector2	vec2_div_scalar (const vector2 v, const vm_float_t s)
	Divides a vector by a scalar component-wise.
vector2	vec2_mul (const vector2 a, const vector2 b)
	Multiplies two vectors component-wise (Hadamard product).
vector2	vec2_neg (const vector2 v)
	Negates the vector (multiplies each component by -1.0f).
vector2	vec2_abs (const vector2 v)
	Returns the absolute values of each component.
vector2	vec2_cross (const vector2 a, const vector2 b)
	Computes the 2D cross-product as a vector.
vector2	vec2_normalize (const vector2 v)
	Normalizes the vector to unit length.
vector2	vec2_min (const vector2 a, const vector2 b)
	Returns the component-wise minimum of two vectors.
vector2	vec2_max (const vector2 a, const vector2 b)
	Returns the component-wise maximum of two vectors.
vector2	vec2_sign (const vector2 v)
	Returns the sign of each component (+1.0f, -1.0f, or 0.0f).
vector2	vec2_floor (const vector2 v)
	Applies floor to each component.
vector2	vec2_ceil (const vector2 v)
	Applies ceil to each component.
vector2	vec2_round (const vector2 v)
	Applies round to each component.
vector2	vec2_perpendicular (const vector2 v)
	Returns the perpendicular vector (90 degrees counterclockwise).
vector2	vec2_reflect (const vector2 v, const vector2 normal)
	Reflects vector v across the normal, storing the result in res.
vector2	vec2_project (const vector2 a, const vector2 b)
	Projects the first vector onto the second.
vector2	vec2_tangent (const vector2 v)
	Returns the tangent vector perpendicular to the input (90 degrees clockwise).
vector2	vec2_rotate (const vector2 v, const vm_float_t angle)
	Rotates the input vector counterclockwise by the given angle (radians).
vector2	vec2_slide (const vector2 v, const vector2 normal)
	Slides the input vector tangent to the normal (removes normal component).
vector2	vec2_clamp (const vector2 v, const vector2 min, const vector2 max)
	Clamps vector v component-wise between min and max.
vm_float_t	vec2_dot (const vector2 a, const vector2 b)
	Computes the dot product of two vectors.
vm_float_t	vec2_length (const vector2 v)
	Computes the length (magnitude) of the vector.
vm_float_t	vec2_aspect_ratio (const vector2 v)
	Computes the aspect ratio of the vector (x / y).
vm_float_t	vec2_distance (const vector2 a, const vector2 b)
	Computes the Euclidean distance between two vectors (treated as points).
vm_float_t	vec2_angle (const vector2 a, const vector2 b)
	Computes the angle between two vectors (in radians, range [0, PI]).
vector2	vec2_lerp (const vector2 a, const vector2 b, const vm_float_t t)
	Linearly interpolates from a to b by t.
vector2	vec2_div (const vector2 a, const vector2 b)
	Divides two vectors component-wise.
vector2	vec2_add_scalar (const vector2 v, const vm_float_t s)
	Adds a scalar to each component.
vector2	vec2_sub_scalar (const vector2 v, const vm_float_t s)
	Subtracts a scalar from each component.
vector2	vec2_clamp_scalar (const vector2 v, const vm_float_t min, const vm_float_t max)
	Clamps each component to the scalar range [min, max].
vector2	vec2_saturate (const vector2 v)
	Clamps each component to the range [0, 1].
vector2	vec2_fract (const vector2 v)
	Returns the fractional part of each component.
vector2	vec2_refract (const vector2 incident, const vector2 normal, const vm_float_t eta)
	Computes the refraction of incident across normal with ratio eta.
vector2	vec2_reject (const vector2 a, const vector2 b)
	Returns the component of a orthogonal to b.
vector2	vec2_splat (const vm_float_t s)
	Returns a vector with every component set to s.
vector2	vec2_from_angle (const vm_float_t angle)
	Returns the unit vector at the given angle in radians.
vector2	vec2_rotate_around (const vector2 v, const vector2 pivot, const vm_float_t angle)
	Rotates v around pivot by angle radians.
vector2	vec2_move_toward (const vector2 current, const vector2 target, const vm_float_t max_delta)
	Moves current toward target by at most max_delta.
vector2	vec2_limit_length (const vector2 v, const vm_float_t max_len)
	Clamps the vector length to max_len.
vector3	vec2_to_vec3 (const vector2 v, const vm_float_t z)
	Converts a vector2 to a vector3 using z.
vm_float_t	vec2_length_squared (const vector2 v)
	Returns the squared Euclidean length.
vm_float_t	vec2_length_manhattan (const vector2 v)
	Returns the Manhattan (L1) length.
vm_float_t	vec2_length_chebyshev (const vector2 v)
	Returns the Chebyshev (L-inf) length.
vm_float_t	vec2_distance_squared (const vector2 a, const vector2 b)
	Returns the squared Euclidean distance between a and b.
vm_float_t	vec2_cross_scalar (const vector2 a, const vector2 b)
	Returns the 2D cross product as a scalar (a.x*b.y - a.y*b.x).
vm_float_t	vec2_heading (const vector2 v)
	Returns the heading angle of the vector in radians.
vm_float_t	vec2_min_component (const vector2 v)
	Returns the smallest component.
vm_float_t	vec2_max_component (const vector2 v)
	Returns the largest component.
vm_float_t	vec2_sum (const vector2 v)
	Returns the sum of all components.
bool	vec2_is_zero (const vector2 v)
	Returns true if every component is zero.
bool	vec2_is_normalized (const vector2 v)
	Returns true if the vector has unit length.
bool	vec2_near (const vector2 a, const vector2 b, const vm_float_t eps)
	Returns true if a and b are within eps of each other.

Function Documentation

vec2_abs()

vector2 vec2_abs

(

const vector2

v

)

Returns the absolute values of each component.

See vec2_abs_ptr instead.

Parameters

v	The input vector.

Returns

The absolute value vector2.

Definition at line 190 of file vector2.c.

References vec2_abs_ptr().

vec2_add()

vector2 vec2_add	(	const vector2	a,
		const vector2	b )

Adds two vectors component-wise.

See vec2_add_ptr instead.

Parameters

a	The first vector.
b	The second vector.

Returns

The sum vector2.

Definition at line 96 of file vector2.c.

References vec2_add_ptr().

vec2_add_scalar()

vector2 vec2_add_scalar	(	const vector2	v,
		const vm_float_t	s )

Adds a scalar to each component.

See vec2_add_scalar_ptr instead.

Parameters

v	Input vector.
s	Scalar value.

Returns

The resulting vector2.

Definition at line 543 of file vector2.c.

References vec2_add_scalar_ptr().

vec2_angle()

vm_float_t vec2_angle	(	const vector2	a,
		const vector2	b )

Computes the angle between two vectors (in radians, range [0, PI]).

Returns 0.0f if either vector has zero length.

Parameters

a	The first vector.
b	The second vector.

Returns

The angle scalar.

Definition at line 492 of file vector2.c.

References vec2_dot(), vec2_length(), and VECMAT_ACOS.

vec2_aspect_ratio()

vm_float_t vec2_aspect_ratio

(

const vector2

v

)

Computes the aspect ratio of the vector (x / y).

Returns 0.0f if y == 0.0f.

Parameters

v	The input vector.

Returns

The aspect ratio scalar.

Definition at line 463 of file vector2.c.

References vector2::x, and vector2::y.

vec2_ceil()

vector2 vec2_ceil

(

const vector2

v

)

Applies ceil to each component.

See vec2_ceil_ptr instead.

Parameters

v	The input vector.

Returns

The ceiled vector2.

Definition at line 298 of file vector2.c.

References vec2_ceil_ptr().

vec2_clamp()

vector2 vec2_clamp	(	const vector2	v,
		const vector2	min,
		const vector2	max )

Clamps vector v component-wise between min and max.

See vec2_clamp_ptr instead.

Parameters

v	The input vector.
min	The minimum bounds vector.
max	The maximum bounds vector.

Returns

The clamped vector2.

Definition at line 425 of file vector2.c.

References vec2_clamp_ptr().

vec2_clamp_scalar()

vector2 vec2_clamp_scalar	(	const vector2	v,
		const vm_float_t	min,
		const vm_float_t	max )

Clamps each component to the scalar range [min, max].

See vec2_clamp_scalar_ptr instead.

Parameters

v	Input vector.
min	Lower bound.
max	Upper bound.

Returns

The resulting vector2.

Definition at line 576 of file vector2.c.

References vec2_clamp_scalar_ptr().

vec2_cross()

vector2 vec2_cross	(	const vector2	a,
		const vector2	b )

Computes the 2D cross-product as a vector.

See vec2_cross_ptr instead.

Parameters

a	The first vector.
b	The second vector.

Returns

The cross-product vector2.

Definition at line 206 of file vector2.c.

References vec2_cross_ptr().

vec2_cross_scalar()

vm_float_t vec2_cross_scalar	(	const vector2	a,
		const vector2	b )

Returns the 2D cross product as a scalar (a.x*b.y - a.y*b.x).

Parameters

a	First input vector.
b	Second input vector.

Returns

The resulting scalar.

Definition at line 792 of file vector2.c.

References vector2::x, and vector2::y.

vec2_distance()

vm_float_t vec2_distance	(	const vector2	a,
		const vector2	b )

Computes the Euclidean distance between two vectors (treated as points).

Parameters

a	The first point.
b	The second point.

Returns

The distance scalar.

Definition at line 476 of file vector2.c.

References VECMAT_SQRT, vector2::x, and vector2::y.

vec2_distance_squared()

vm_float_t vec2_distance_squared	(	const vector2	a,
		const vector2	b )

Returns the squared Euclidean distance between a and b.

Parameters

a	First input vector.
b	Second input vector.

Returns

The resulting scalar.

Definition at line 778 of file vector2.c.

References vector2::x, and vector2::y.

vec2_div()

vector2 vec2_div	(	const vector2	a,
		const vector2	b )

Divides two vectors component-wise.

See vec2_div_ptr instead.

Parameters

a	First input vector.
b	Second input vector.

Returns

The resulting vector2.

Definition at line 527 of file vector2.c.

References vec2_div_ptr().

vec2_div_scalar()

vector2 vec2_div_scalar	(	const vector2	v,
		const vm_float_t	s )

Divides a vector by a scalar component-wise.

See vec2_div_scalar_ptr instead.

Parameters

v	The input vector.
s	The scalar divisor (non-zero).

Returns

The divided vector2.

Definition at line 144 of file vector2.c.

References vec2_div_scalar_ptr().

vec2_dot()

vm_float_t vec2_dot	(	const vector2	a,
		const vector2	b )

Computes the dot product of two vectors.

Parameters

a	The first vector.
b	The second vector.

Returns

The dot product scalar.

Definition at line 439 of file vector2.c.

References vector2::x, and vector2::y.

Referenced by vec2_angle(), vec2_length(), vec2_length_squared(), vec2_project_ptr(), vec2_reflect_ptr(), vec2_refract_ptr(), and vec2_slide_ptr().

vec2_floor()

vector2 vec2_floor

(

const vector2

v

)

Applies floor to each component.

See vec2_floor_ptr instead.

Parameters

v	The input vector.

Returns

The floored vector2.

Definition at line 283 of file vector2.c.

References vec2_floor_ptr().

vec2_fract()

vector2 vec2_fract

(

const vector2

v

)

Returns the fractional part of each component.

See vec2_fract_ptr instead.

Parameters

v	Input vector.

Returns

The resulting vector2.

Definition at line 606 of file vector2.c.

References vec2_fract_ptr().

vec2_from_angle()

vector2 vec2_from_angle

(

const vm_float_t

angle

)

Returns the unit vector at the given angle in radians.

See vec2_from_angle_ptr instead.

Parameters

angle

Angle in radians.

Returns

The resulting vector2.

Definition at line 667 of file vector2.c.

References VECMAT_COS, and VECMAT_SIN.

vec2_heading()

vm_float_t vec2_heading

(

const vector2

v

)

Returns the heading angle of the vector in radians.

Parameters

v	Input vector.

Returns

The resulting scalar.

Definition at line 803 of file vector2.c.

References VECMAT_ATAN2, vector2::x, and vector2::y.

vec2_is_normalized()

bool vec2_is_normalized

(

const vector2

v

)

Returns true if the vector has unit length.

Parameters

v	Input vector.

Returns

True if the vector has unit length.

Definition at line 858 of file vector2.c.

References vec2_length_squared(), VECMAT_EPSILON, and VECMAT_FABS.

vec2_is_zero()

bool vec2_is_zero

(

const vector2

v

)

Returns true if every component is zero.

Parameters

v	Input vector.

Returns

True if every component is zero.

Definition at line 847 of file vector2.c.

References VECMAT_EPSILON, VECMAT_FABS, vector2::x, and vector2::y.

vec2_length()

vm_float_t vec2_length

(

const vector2

v

)

Computes the length (magnitude) of the vector.

Parameters

v	The input vector.

Returns

The length scalar.

Definition at line 450 of file vector2.c.

References vec2_dot(), and VECMAT_SQRT.

Referenced by vec2_angle(), vec2_limit_length_ptr(), and vec2_normalize_ptr().

vec2_length_chebyshev()

vm_float_t vec2_length_chebyshev

(

const vector2

v

)

Returns the Chebyshev (L-inf) length.

Parameters

v	Input vector.

Returns

The resulting scalar.

Definition at line 766 of file vector2.c.

References VECMAT_FABS, VECMAT_FMAX, vector2::x, and vector2::y.

vec2_length_manhattan()

vm_float_t vec2_length_manhattan

(

const vector2

v

)

Returns the Manhattan (L1) length.

Parameters

v	Input vector.

Returns

The resulting scalar.

Definition at line 755 of file vector2.c.

References VECMAT_FABS, vector2::x, and vector2::y.

vec2_length_squared()

vm_float_t vec2_length_squared

(

const vector2

v

)

Returns the squared Euclidean length.

Parameters

v	Input vector.

Returns

The resulting scalar.

Definition at line 744 of file vector2.c.

References vec2_dot().

Referenced by vec2_is_normalized().

vec2_lerp()

vector2 vec2_lerp	(	const vector2	a,
		const vector2	b,
		const vm_float_t	t )

Linearly interpolates from a to b by t.

See vec2_lerp_ptr instead.

Parameters

a	First input vector.
b	Second input vector.
t	Interpolation factor.

Returns

The resulting vector2.

Definition at line 511 of file vector2.c.

References vec2_lerp_ptr().

vec2_limit_length()

vector2 vec2_limit_length	(	const vector2	v,
		const vm_float_t	max_len )

Clamps the vector length to max_len.

See vec2_limit_length_ptr instead.

Parameters

v	Input vector.
max_len	Maximum length.

Returns

The resulting vector2.

Definition at line 715 of file vector2.c.

References vec2_limit_length_ptr().

vec2_max()

vector2 vec2_max	(	const vector2	a,
		const vector2	b )

Returns the component-wise maximum of two vectors.

See vec2_max_ptr instead.

Parameters

a	The first vector.
b	The second vector.

Returns

The maximum vector2.

Definition at line 253 of file vector2.c.

References vec2_max_ptr().

vec2_max_component()

vm_float_t vec2_max_component

(

const vector2

v

)

Returns the largest component.

Parameters

v	Input vector.

Returns

The resulting scalar.

Definition at line 825 of file vector2.c.

References VECMAT_FMAX, vector2::x, and vector2::y.

vec2_min()

vector2 vec2_min	(	const vector2	a,
		const vector2	b )

Returns the component-wise minimum of two vectors.

See vec2_min_ptr instead.

Parameters

a	The first vector.
b	The second vector.

Returns

The minimum vector2.

Definition at line 237 of file vector2.c.

References vec2_min_ptr().

vec2_min_component()

vm_float_t vec2_min_component

(

const vector2

v

)

Returns the smallest component.

Parameters

v	Input vector.

Returns

The resulting scalar.

Definition at line 814 of file vector2.c.

References VECMAT_FMIN, vector2::x, and vector2::y.

vec2_move_toward()

vector2 vec2_move_toward	(	const vector2	current,
		const vector2	target,
		const vm_float_t	max_delta )

Moves current toward target by at most max_delta.

See vec2_move_toward_ptr instead.

Parameters

current	Current position.
target	Target position.
max_delta	Maximum distance to move.

Returns

The resulting vector2.

Definition at line 699 of file vector2.c.

References vec2_move_toward_ptr().

vec2_mul()

vector2 vec2_mul	(	const vector2	a,
		const vector2	b )

Multiplies two vectors component-wise (Hadamard product).

See vec2_mul_ptr instead.

Parameters

a	The first vector.
b	The second vector.

Returns

The product vector2.

Definition at line 160 of file vector2.c.

References vec2_mul_ptr().

vec2_mul_scalar()

vector2 vec2_mul_scalar	(	const vector2	v,
		const vm_float_t	s )

Multiplies a vector by a scalar component-wise.

See vec2_mul_scalar_ptr instead.

Parameters

v	The input vector.
s	The scalar multiplier.

Returns

The scaled vector2.

Definition at line 128 of file vector2.c.

References vec2_mul_scalar_ptr().

vec2_near()

bool vec2_near	(	const vector2	a,
		const vector2	b,
		const vm_float_t	eps )

Returns true if a and b are within eps of each other.

Parameters

a	First input vector.
b	Second input vector.
eps	Distance tolerance.

Returns

True if a and b are within eps.

Definition at line 871 of file vector2.c.

References VECMAT_FABS, vector2::x, and vector2::y.

vec2_neg()

vector2 vec2_neg

(

const vector2

v

)

Negates the vector (multiplies each component by -1.0f).

See vec2_neg_ptr instead.

Parameters

v	The input vector.

Returns

The negated vector2.

Definition at line 175 of file vector2.c.

References vec2_neg_ptr().

vec2_normalize()

vector2 vec2_normalize

(

const vector2

v

)

Normalizes the vector to unit length.

See vec2_normalize_ptr instead.

Parameters

v	The input vector.

Returns

The normalized vector2 (unchanged if zero length).

Definition at line 221 of file vector2.c.

References vec2_normalize_ptr().

vec2_one()

vector2 vec2_one

(

void

)

Returns a vector2 with both components set to 1.0f.

Returns

The one vector2.

Definition at line 22 of file vector2.c.

vec2_perpendicular()

vector2 vec2_perpendicular

(

const vector2

v

)

Returns the perpendicular vector (90 degrees counterclockwise).

See vec2_perpendicular_ptr instead.

Parameters

v	The input vector.

Returns

The perpendicular vector2.

Definition at line 329 of file vector2.c.

References vec2_perpendicular_ptr().

vec2_project()

vector2 vec2_project	(	const vector2	a,
		const vector2	b )

Projects the first vector onto the second.

See vec2_project_ptr instead.

Parameters

a	The vector to project.
b	The projection direction vector.

Returns

The projected vector2.

Definition at line 361 of file vector2.c.

References vec2_project_ptr().

vec2_reflect()

vector2 vec2_reflect	(	const vector2	v,
		const vector2	normal )

Reflects vector v across the normal, storing the result in res.

See vec2_reflect_ptr instead.

Parameters

v	The incident vector.
normal	The unit normal vector.

Returns

The reflected vector2.

Definition at line 345 of file vector2.c.

References vec2_reflect_ptr().

vec2_refract()

vector2 vec2_refract	(	const vector2	incident,
		const vector2	normal,
		const vm_float_t	eta )

Computes the refraction of incident across normal with ratio eta.

See vec2_refract_ptr instead.

Parameters

incident	Incident vector.
normal	Surface normal.
eta	Ratio of indices of refraction.

Returns

The resulting vector2.

Definition at line 623 of file vector2.c.

References vec2_refract_ptr().

vec2_reject()

vector2 vec2_reject	(	const vector2	a,
		const vector2	b )

Returns the component of a orthogonal to b.

See vec2_reject_ptr instead.

Parameters

a	First input vector.
b	Second input vector.

Returns

The resulting vector2.

Definition at line 639 of file vector2.c.

References vec2_reject_ptr().

vec2_rotate()

vector2 vec2_rotate	(	const vector2	v,
		const vm_float_t	angle )

Rotates the input vector counterclockwise by the given angle (radians).

See vec2_rotate_ptr instead.

Parameters

v	The input vector.
angle	The rotation angle in radians.

Returns

The rotated vector2.

Definition at line 392 of file vector2.c.

References vec2_rotate_ptr().

vec2_rotate_around()

vector2 vec2_rotate_around	(	const vector2	v,
		const vector2	pivot,
		const vm_float_t	angle )

Rotates v around pivot by angle radians.

See vec2_rotate_around_ptr instead.

Parameters

v	Input vector.
pivot	Rotation pivot.
angle	Angle in radians.

Returns

The resulting vector2.

Definition at line 682 of file vector2.c.

References vec2_rotate_around_ptr().

vec2_round()

vector2 vec2_round

(

const vector2

v

)

Applies round to each component.

See vec2_round_ptr instead.

Parameters

v	The input vector.

Returns

The rounded vector2.

Definition at line 313 of file vector2.c.

References vec2_round_ptr().

vec2_saturate()

vector2 vec2_saturate

(

const vector2

v

)

Clamps each component to the range [0, 1].

See vec2_saturate_ptr instead.

Parameters

v	Input vector.

Returns

The resulting vector2.

Definition at line 591 of file vector2.c.

References vec2_saturate_ptr().

vec2_scale()

vector2 vec2_scale	(	const vector2	v,
		const vm_float_t	s )

Scales a vector by a scalar component-wise.

See vec2_scale_ptr instead.

Parameters

v	The input vector.
s	The scalar multiplier.

Returns

The scaled vector2.

Definition at line 80 of file vector2.c.

References vec2_scale_ptr().

vec2_sign()

vector2 vec2_sign

(

const vector2

v

)

Returns the sign of each component (+1.0f, -1.0f, or 0.0f).

See vec2_sign_ptr instead.

Parameters

v	The input vector.

Returns

The sign vector2.

Definition at line 268 of file vector2.c.

References vec2_sign_ptr().

vec2_slide()

vector2 vec2_slide	(	const vector2	v,
		const vector2	normal )

Slides the input vector tangent to the normal (removes normal component).

See vec2_slide_ptr instead.

Parameters

v	The input vector.
normal	The unit normal vector.

Returns

The slid vector2.

Definition at line 408 of file vector2.c.

References vec2_slide_ptr().

vec2_splat()

vector2 vec2_splat

(

const vm_float_t

s

)

Returns a vector with every component set to s.

See vec2_splat_ptr instead.

Parameters

s	Scalar value.

Returns

The resulting vector2.

Definition at line 654 of file vector2.c.

vec2_sub()

vector2 vec2_sub	(	const vector2	a,
		const vector2	b )

Subtracts the second vector from the first component-wise.

See vec2_sub_ptr instead.

Parameters

a	The first vector.
b	The second vector.

Returns

The difference vector2.

Definition at line 112 of file vector2.c.

References vec2_sub_ptr().

vec2_sub_scalar()

vector2 vec2_sub_scalar	(	const vector2	v,
		const vm_float_t	s )

Subtracts a scalar from each component.

See vec2_sub_scalar_ptr instead.

Parameters

v	Input vector.
s	Scalar value.

Returns

The resulting vector2.

Definition at line 559 of file vector2.c.

References vec2_sub_scalar_ptr().

vec2_sum()

vm_float_t vec2_sum

(

const vector2

v

)

Returns the sum of all components.

Parameters

v	Input vector.

Returns

The resulting scalar.

Definition at line 836 of file vector2.c.

References vector2::x, and vector2::y.

vec2_tangent()

vector2 vec2_tangent

(

const vector2

v

)

Returns the tangent vector perpendicular to the input (90 degrees clockwise).

See vec2_tangent_ptr instead.

Parameters

v	The input vector.

Returns

The tangent vector2.

Definition at line 376 of file vector2.c.

References vec2_tangent_ptr().

vec2_to_vec3()

vector3 vec2_to_vec3	(	const vector2	v,
		const vm_float_t	z )

Converts a vector2 to a vector3 using z.

See vec2_to_vec3_ptr instead.

Parameters

v	Input vector.
z	Z component.

Returns

The resulting vector3.

Definition at line 731 of file vector2.c.

References vec2_to_vec3_ptr().

vec2_x_axis()

vector2 vec2_x_axis

(

const vm_float_t

x

)

Returns a vector2 along the x-axis (y = 0.0f).

Parameters

x	The x component value.

Returns

The x-axis vector2.

Definition at line 33 of file vector2.c.

vec2_x_scale()

vector2 vec2_x_scale

(

const vm_float_t

x

)

Returns a vector2 representing x-axis scaling (y = 1.0f).

Parameters

x	The x scale factor.

Returns

The x-scale vector2.

Definition at line 55 of file vector2.c.

vec2_y_axis()

vector2 vec2_y_axis

(

const vm_float_t

y

)

Returns a vector2 along the y-axis (x = 0.0f).

Parameters

y	The y component value.

Returns

The y-axis vector2.

Definition at line 44 of file vector2.c.

vec2_y_scale()

vector2 vec2_y_scale

(

const vm_float_t

y

)

Returns a vector2 representing y-axis scaling (x = 1.0f).

Parameters

y	The y scale factor.

Returns

The y-scale vector2.

Definition at line 66 of file vector2.c.

vec2_zero()

vector2 vec2_zero

(

void

)

Returns a vector2 with both components set to 0.0f.

Returns

The zero vector2.

Definition at line 12 of file vector2.c.