nuclear@0: /*
nuclear@0: libvmath - a vector math library
nuclear@0: Copyright (C) 2004-2012 John Tsiombikas <nuclear@member.fsf.org>
nuclear@0: 
nuclear@0: This program is free software: you can redistribute it and/or modify
nuclear@0: it under the terms of the GNU Lesser General Public License as published
nuclear@0: by the Free Software Foundation, either version 3 of the License, or
nuclear@0: (at your option) any later version.
nuclear@0: 
nuclear@0: This program is distributed in the hope that it will be useful,
nuclear@0: but WITHOUT ANY WARRANTY; without even the implied warranty of
nuclear@0: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nuclear@0: GNU Lesser General Public License for more details.
nuclear@0: 
nuclear@0: You should have received a copy of the GNU Lesser General Public License
nuclear@0: along with this program.  If not, see <http://www.gnu.org/licenses/>.
nuclear@0: */
nuclear@0: #ifndef LIBVMATH_GEOM_H_
nuclear@0: #define LIBVMATH_GEOM_H_
nuclear@0: 
nuclear@0: #include "vector.h"
nuclear@0: #include "ray.h"
nuclear@0: 
nuclear@0: typedef struct {
nuclear@0: 	vec3_t norm;
nuclear@0: 	scalar_t d;
nuclear@0: } plane_t;
nuclear@0: 
nuclear@0: typedef struct {
nuclear@0: 	vec3_t pos;
nuclear@0: 	scalar_t rad;
nuclear@0: } sphere_t;
nuclear@0: 
nuclear@0: typedef struct {
nuclear@0: 	vec3_t min, max;
nuclear@0: } aabox_t;
nuclear@0: 
nuclear@0: #ifdef __cplusplus
nuclear@0: extern "C" {
nuclear@0: #endif
nuclear@0: 
nuclear@0: /* planes are good... you need planes, yes you do */
nuclear@0: plane_t plane_cons(scalar_t nx, scalar_t ny, scalar_t nz, scalar_t d);
nuclear@0: plane_t plane_poly(vec3_t v0, vec3_t v1, vec3_t v2);
nuclear@0: plane_t plane_ptnorm(vec3_t pt, vec3_t normal);
nuclear@0: 
nuclear@0: plane_t plane_invert(plane_t p);
nuclear@0: 
nuclear@0: scalar_t plane_signed_dist(plane_t plane, vec3_t pt);
nuclear@0: scalar_t plane_dist(plane_t plane, vec3_t pt);
nuclear@0: vec3_t plane_point(plane_t plane);
nuclear@0: 
nuclear@0: int plane_ray_intersect(ray_t ray, plane_t plane, scalar_t *pos);
nuclear@0: 
nuclear@0: /* spheres always come in handy */
nuclear@0: sphere_t sphere_cons(scalar_t x, scalar_t y, scalar_t z, scalar_t rad);
nuclear@0: 
nuclear@0: int sphere_ray_intersect(ray_t ray, sphere_t sph, scalar_t *pos);
nuclear@0: int sphere_sphere_intersect(sphere_t sph1, sphere_t sph2, scalar_t *pos, scalar_t *rad);
nuclear@0: 
nuclear@0: #ifdef __cplusplus
nuclear@0: }
nuclear@0: 
nuclear@0: /* TODO
nuclear@0: class Plane : public plane_t {
nuclear@0: public:
nuclear@0: };
nuclear@0: */
nuclear@0: 
nuclear@0: #endif
nuclear@0: 
nuclear@0: #endif	/* LIBVMATH_GEOM_H_ */