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/*
* Copyright (c), Recep Aslantas.
*
* MIT License (MIT), http://opensource.org/licenses/MIT
* Full license can be found in the LICENSE file
*/
#ifndef cglms_aabb2ds_h
#define cglms_aabb2ds_h
#include "../common.h"
#include "../types-struct.h"
#include "../aabb2d.h"
#include "vec2.h"
#include "vec4.h"
#include "mat4.h"
/* api definition */
#define glms_aabb2d_(NAME) CGLM_STRUCTAPI(aabb2d, NAME)
/*!
* @brief apply transform to Axis-Aligned Bounding Box
*
* @param[in] aabb bounding box
* @param[in] m transform matrix
* @param[out] dest transformed bounding box
*/
CGLM_INLINE
void
glms_aabb2d_(transform)(vec2s aabb[2], mat3s m, vec2s dest[2]) {
vec2 rawAabb[2];
vec2 rawDest[2];
glms_vec2_(unpack)(rawAabb, aabb, 2);
glm_aabb2d_transform(rawAabb, m.raw, rawDest);
glms_vec2_(pack)(dest, rawDest, 2);
}
/*!
* @brief merges two AABB bounding box and creates new one
*
* two box must be in same space, if one of box is in different space then
* you should consider to convert it's space by glm_box_space
*
* @param[in] aabb1 bounding box 1
* @param[in] aabb2 bounding box 2
* @param[out] dest merged bounding box
*/
CGLM_INLINE
void
glms_aabb2d_(merge)(vec2s aabb1[2], vec2s aabb2[2], vec2s dest[2]) {
vec2 rawAabb1[2];
vec2 rawAabb2[2];
vec2 rawDest[2];
glms_vec2_(unpack)(rawAabb1, aabb1, 2);
glms_vec2_(unpack)(rawAabb2, aabb2, 2);
glm_aabb2d_merge(rawAabb1, rawAabb2, rawDest);
glms_vec2_(pack)(dest, rawDest, 2);
}
/*!
* @brief crops a bounding box with another one.
*
* this could be useful for getting a bbox which fits with view frustum and
* object bounding boxes. In this case you crop view frustum box with objects
* box
*
* @param[in] aabb bounding box 1
* @param[in] cropAabb crop box
* @param[out] dest cropped bounding box
*/
CGLM_INLINE
void
glms_aabb2d_(crop)(vec2s aabb[2], vec2s cropAabb[2], vec2s dest[2]) {
vec2 rawAabb[2];
vec2 rawCropAabb[2];
vec2 rawDest[2];
glms_vec2_(unpack)(rawAabb, aabb, 2);
glms_vec2_(unpack)(rawCropAabb, cropAabb, 2);
glm_aabb2d_crop(rawAabb, rawCropAabb, rawDest);
glms_vec2_(pack)(dest, rawDest, 2);
}
/*!
* @brief crops a bounding box with another one.
*
* this could be useful for getting a bbox which fits with view frustum and
* object bounding boxes. In this case you crop view frustum box with objects
* box
*
* @param[in] aabb bounding box
* @param[in] cropAabb crop box
* @param[in] clampAabb minimum box
* @param[out] dest cropped bounding box
*/
CGLM_INLINE
void
glms_aabb2d_(crop_until)(vec2s aabb[2],
vec2s cropAabb[2],
vec2s clampAabb[2],
vec2s dest[2]) {
glms_aabb2d_(crop)(aabb, cropAabb, dest);
glms_aabb2d_(merge)(clampAabb, dest, dest);
}
/*!
* @brief invalidate AABB min and max values
*
* @param[in, out] aabb bounding box
*/
CGLM_INLINE
void
glms_aabb2d_(invalidate)(vec2s box[2]) {
box[0] = glms_vec2_(fill)(FLT_MAX);
box[1] = glms_vec2_(fill)(-FLT_MAX);
}
/*!
* @brief check if AABB is valid or not
*
* @param[in] aabb bounding box
*/
CGLM_INLINE
bool
glms_aabb2d_(isvalid)(vec2s aabb[2]) {
vec2 rawAabb[2];
glms_vec2_(unpack)(rawAabb, aabb, 2);
return glm_aabb2d_isvalid(rawAabb);
}
/*!
* @brief distance between of min and max
*
* @param[in] aabb bounding box
*/
CGLM_INLINE
float
glms_aabb2d_(diag)(vec2s aabb[2]) {
vec2 rawAabb[2];
glms_vec2_(unpack)(rawAabb, aabb, 2);
return glm_aabb2d_diag(rawAabb);
}
/*!
* @brief size of aabb
*
* @param[in] aabb bounding aabb
* @param[out] dest size
*/
CGLM_INLINE
vec2s
glms_aabb2d_(sizev)(vec2s aabb[2]) {
vec2s size;
vec2 rawAabb[2];
glms_vec2_(unpack)(rawAabb, aabb, 2);
glm_aabb2d_sizev(rawAabb, size.raw);
return size;
}
/*!
* @brief radius of sphere which surrounds AABB
*
* @param[in] aabb bounding box
*/
CGLM_INLINE
float
glms_aabb2d_(radius)(vec2s aabb[2]) {
return glms_aabb2d_(size)(aabb) * 0.5f;
}
/*!
* @brief computes center point of AABB
*
* @param[in] aabb bounding box
* @returns center of bounding box
*/
CGLM_INLINE
vec2s
glms_aabb2d_(center)(vec2s aabb[2]) {
return glms_vec2_(center)(aabb[0], aabb[1]);
}
/*!
* @brief check if two AABB intersects
*
* @param[in] aabb bounding box
* @param[in] other other bounding box
*/
CGLM_INLINE
bool
glms_aabb2d_(aabb)(vec2s aabb[2], vec2s other[2]) {
vec2 rawAabb[2];
vec2 rawOther[2];
glms_vec2_(unpack)(rawAabb, aabb, 2);
glms_vec2_(unpack)(rawOther, other, 2);
return glm_aabb2d_aabb(rawAabb, rawOther);
}
/*!
* @brief check if AABB intersects with a circle
*
* https://github.com/erich666/GraphicsGems/blob/master/gems/BoxSphere.c
* Solid Box - Solid Sphere test.
*
* @param[in] aabb solid bounding box
* @param[in] s solid sphere
*/
CGLM_INLINE
bool
glms_aabb2d_(circle)(vec2s aabb[2], vec3s c) {
vec2 rawAabb[2];
glms_vec2_(unpack)(rawAabb, aabb, 2);
return glm_aabb2d_circle(rawAabb, c.raw);
}
/*!
* @brief check if point is inside of AABB
*
* @param[in] aabb bounding box
* @param[in] point point
*/
CGLM_INLINE
bool
glms_aabb2d_(point)(vec2s aabb[2], vec2s point) {
vec2 rawAabb[2];
glms_vec2_(unpack)(rawAabb, aabb, 2);
return glm_aabb2d_point(rawAabb, point.raw);
}
/*!
* @brief check if AABB contains other AABB
*
* @param[in] box bounding box
* @param[in] other other bounding box
*/
CGLM_INLINE
bool
glms_aabb2d_(contains)(vec2s aabb[2], vec2s other[2]) {
vec2 rawAabb[2];
vec2 rawOther[2];
glms_vec2_(unpack)(rawAabb, aabb, 2);
glms_vec2_(unpack)(rawOther, other, 2);
return glm_aabb2d_contains(rawAabb, rawOther);
}
#endif /* cglms_aabb2ds_h */
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