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include/cglm/struct/sphere.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_spheres_h
+#define cglms_spheres_h
+
+#include "../common.h"
+#include "../types-struct.h"
+#include "../sphere.h"
+#include "mat4.h"
+
+/*
+  Sphere Representation in cglm: [center.x, center.y, center.z, radii]
+
+  You could use this representation or you can convert it to vec4 before call
+  any function
+ */
+
+/*!
+ * @brief helper for getting sphere radius
+ *
+ * @param[in]   s  sphere
+ *
+ * @return returns radii
+ */
+CGLM_INLINE
+float
+glms_sphere_radii(vec4s s) {
+  return glm_sphere_radii(s.raw);
+}
+
+/*!
+ * @brief apply transform to sphere, it is just wrapper for glm_mat4_mulv3
+ *
+ * @param[in]  s    sphere
+ * @param[in]  m    transform matrix
+ * @returns         transformed sphere
+ */
+CGLM_INLINE
+vec4s
+glms_sphere_transform(vec4s s, mat4s m) {
+  vec4s r;
+  glm_sphere_transform(s.raw, m.raw, r.raw);
+  return r;
+}
+
+/*!
+ * @brief merges two spheres and creates a new one
+ *
+ * two sphere must be in same space, for instance if one in world space then
+ * the other must be in world space too, not in local space.
+ *
+ * @param[in]  s1   sphere 1
+ * @param[in]  s2   sphere 2
+ * returns          merged/extended sphere
+ */
+CGLM_INLINE
+vec4s
+glms_sphere_merge(vec4s s1, vec4s s2) {
+  vec4s r;
+  glm_sphere_merge(s1.raw, s2.raw, r.raw);
+  return r;
+}
+
+/*!
+ * @brief check if two sphere intersects
+ *
+ * @param[in]   s1  sphere
+ * @param[in]   s2  other sphere
+ */
+CGLM_INLINE
+bool
+glms_sphere_sphere(vec4s s1, vec4s s2) {
+  return glm_sphere_sphere(s1.raw, s2.raw);
+}
+
+/*!
+ * @brief check if sphere intersects with point
+ *
+ * @param[in]   s      sphere
+ * @param[in]   point  point
+ */
+CGLM_INLINE
+bool
+glms_sphere_point(vec4s s, vec3s point) {
+  return glm_sphere_point(s.raw, point.raw);
+}
+
+#endif /* cglms_spheres_h */