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authorAaditya Dhruv <[email protected]>2026-01-25 15:10:37 -0600
committerAaditya Dhruv <[email protected]>2026-01-25 15:10:37 -0600
commit118980e02e59ff31871df59dce257075394f3533 (patch)
tree26fba4492bb4b561d21bf49b35d892a821d54fab /include/cglm/struct/aabb2d.h
parent0e6e1245b70df4dfcba135d50e1b53d1a8ef7eb8 (diff)
wip
Diffstat (limited to 'include/cglm/struct/aabb2d.h')
-rw-r--r--include/cglm/struct/aabb2d.h253
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diff --git a/include/cglm/struct/aabb2d.h b/include/cglm/struct/aabb2d.h
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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 */