frillrun/include/cglm/ivec2.h
2024-08-24 00:47:58 -04:00

257 lines
5.3 KiB
C

/*
* Copyright (c), Recep Aslantas.
*
* MIT License (MIT), http://opensource.org/licenses/MIT
* Full license can be found in the LICENSE file
*/
/*
FUNCTIONS:
CGLM_INLINE void glm_ivec2(int * __restrict v, ivec2 dest)
CGLM_INLINE void glm_ivec2_copy(ivec2 a, ivec2 dest)
CGLM_INLINE void glm_ivec2_zero(ivec2 v)
CGLM_INLINE void glm_ivec2_one(ivec2 v)
CGLM_INLINE void glm_ivec2_add(ivec2 a, ivec2 b, ivec2 dest)
CGLM_INLINE void glm_ivec2_adds(ivec2 v, int s, ivec2 dest)
CGLM_INLINE void glm_ivec2_sub(ivec2 a, ivec2 b, ivec2 dest)
CGLM_INLINE void glm_ivec2_subs(ivec2 v, int s, ivec2 dest)
CGLM_INLINE void glm_ivec2_mul(ivec2 a, ivec2 b, ivec2 dest)
CGLM_INLINE void glm_ivec2_scale(ivec2 v, int s, ivec2 dest)
CGLM_INLINE int glm_ivec2_distance2(ivec2 a, ivec2 b)
CGLM_INLINE float glm_ivec2_distance(ivec2 a, ivec2 b)
CGLM_INLINE void glm_ivec2_maxv(ivec2 a, ivec2 b, ivec2 dest)
CGLM_INLINE void glm_ivec2_minv(ivec2 a, ivec2 b, ivec2 dest)
CGLM_INLINE void glm_ivec2_clamp(ivec2 v, int minVal, int maxVal)
CGLM_INLINE void glm_ivec2_abs(ivec2 v, ivec2 dest)
*/
#ifndef cglm_ivec2_h
#define cglm_ivec2_h
#include "common.h"
/*!
* @brief init ivec2 using vec3 or vec4
*
* @param[in] v vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec2(int * __restrict v, ivec2 dest) {
dest[0] = v[0];
dest[1] = v[1];
}
/*!
* @brief copy all members of [a] to [dest]
*
* @param[in] a source vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec2_copy(ivec2 a, ivec2 dest) {
dest[0] = a[0];
dest[1] = a[1];
}
/*!
* @brief set all members of [v] to zero
*
* @param[out] v vector
*/
CGLM_INLINE
void
glm_ivec2_zero(ivec2 v) {
v[0] = v[1] = 0;
}
/*!
* @brief set all members of [v] to one
*
* @param[out] v vector
*/
CGLM_INLINE
void
glm_ivec2_one(ivec2 v) {
v[0] = v[1] = 1;
}
/*!
* @brief add vector [a] to vector [b] and store result in [dest]
*
* @param[in] a first vector
* @param[in] b second vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec2_add(ivec2 a, ivec2 b, ivec2 dest) {
dest[0] = a[0] + b[0];
dest[1] = a[1] + b[1];
}
/*!
* @brief add scalar s to vector [v] and store result in [dest]
*
* @param[in] v vector
* @param[in] s scalar
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec2_adds(ivec2 v, int s, ivec2 dest) {
dest[0] = v[0] + s;
dest[1] = v[1] + s;
}
/*!
* @brief subtract vector [b] from vector [a] and store result in [dest]
*
* @param[in] a first vector
* @param[in] b second vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec2_sub(ivec2 a, ivec2 b, ivec2 dest) {
dest[0] = a[0] - b[0];
dest[1] = a[1] - b[1];
}
/*!
* @brief subtract scalar s from vector [v] and store result in [dest]
*
* @param[in] v vector
* @param[in] s scalar
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec2_subs(ivec2 v, int s, ivec2 dest) {
dest[0] = v[0] - s;
dest[1] = v[1] - s;
}
/*!
* @brief multiply vector [a] with vector [b] and store result in [dest]
*
* @param[in] a frist vector
* @param[in] b second vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec2_mul(ivec2 a, ivec2 b, ivec2 dest) {
dest[0] = a[0] * b[0];
dest[1] = a[1] * b[1];
}
/*!
* @brief multiply vector [a] with scalar s and store result in [dest]
*
* @param[in] v vector
* @param[in] s scalar
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec2_scale(ivec2 v, int s, ivec2 dest) {
dest[0] = v[0] * s;
dest[1] = v[1] * s;
}
/*!
* @brief squared distance between two vectors
*
* @param[in] a first vector
* @param[in] b second vector
* @return returns squared distance (distance * distance)
*/
CGLM_INLINE
int
glm_ivec2_distance2(ivec2 a, ivec2 b) {
int xd, yd;
xd = a[0] - b[0];
yd = a[1] - b[1];
return xd * xd + yd * yd;
}
/*!
* @brief distance between two vectors
*
* @param[in] a first vector
* @param[in] b second vector
* @return returns distance
*/
CGLM_INLINE
float
glm_ivec2_distance(ivec2 a, ivec2 b) {
return sqrtf((float)glm_ivec2_distance2(a, b));
}
/*!
* @brief set each member of dest to greater of vector a and b
*
* @param[in] a first vector
* @param[in] b second vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec2_maxv(ivec2 a, ivec2 b, ivec2 dest) {
dest[0] = a[0] > b[0] ? a[0] : b[0];
dest[1] = a[1] > b[1] ? a[1] : b[1];
}
/*!
* @brief set each member of dest to lesser of vector a and b
*
* @param[in] a first vector
* @param[in] b second vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec2_minv(ivec2 a, ivec2 b, ivec2 dest) {
dest[0] = a[0] < b[0] ? a[0] : b[0];
dest[1] = a[1] < b[1] ? a[1] : b[1];
}
/*!
* @brief clamp each member of [v] between minVal and maxVal (inclusive)
*
* @param[in, out] v vector
* @param[in] minVal minimum value
* @param[in] maxVal maximum value
*/
CGLM_INLINE
void
glm_ivec2_clamp(ivec2 v, int minVal, int maxVal) {
if (v[0] < minVal)
v[0] = minVal;
else if(v[0] > maxVal)
v[0] = maxVal;
if (v[1] < minVal)
v[1] = minVal;
else if(v[1] > maxVal)
v[1] = maxVal;
}
/*!
* @brief absolute value of v
*
* @param[in] v vector
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_ivec2_abs(ivec2 v, ivec2 dest) {
dest[0] = abs(v[0]);
dest[1] = abs(v[1]);
}
#endif /* cglm_ivec2_h */