conworlds

annotate src/geom.h @ 17:c814f77d177e

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moved to SDL2
author John Tsiombikas <nuclear@member.fsf.org>
date Mon, 25 Aug 2014 22:02:08 +0300
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nuclear@13 1 #ifndef GEOMOBJ_H_
nuclear@13 2 #define GEOMOBJ_H_
nuclear@13 3
nuclear@13 4 #include "vmath/vmath.h"
nuclear@13 5
nuclear@13 6 class GeomObject;
nuclear@13 7
nuclear@13 8 struct HitPoint {
nuclear@13 9 float dist; //< parametric distance along the ray
nuclear@13 10 Vector3 pos; //< position of intersection (orig + dir * dist)
nuclear@13 11 Vector3 normal; //< normal at the point of intersection
nuclear@13 12 const void *obj; //< pointer to the intersected object
nuclear@13 13 };
nuclear@13 14
nuclear@13 15 class GeomObject {
nuclear@13 16 public:
nuclear@13 17 virtual ~GeomObject();
nuclear@13 18
nuclear@13 19 virtual void set_union(const GeomObject *obj1, const GeomObject *obj2) = 0;
nuclear@13 20 virtual void set_intersection(const GeomObject *obj1, const GeomObject *obj2) = 0;
nuclear@13 21
nuclear@13 22 virtual bool contains(const Vector3 &pt) const = 0;
nuclear@13 23 virtual bool intersect(const Ray &ray, HitPoint *hit = 0) const = 0;
nuclear@13 24 };
nuclear@13 25
nuclear@13 26 class Sphere : public GeomObject {
nuclear@13 27 public:
nuclear@13 28 Vector3 center;
nuclear@13 29 float radius;
nuclear@13 30
nuclear@13 31 Sphere();
nuclear@13 32 Sphere(const Vector3 &center, float radius);
nuclear@13 33
nuclear@13 34 void set_union(const GeomObject *obj1, const GeomObject *obj2);
nuclear@13 35 void set_intersection(const GeomObject *obj1, const GeomObject *obj2);
nuclear@13 36
nuclear@13 37 bool contains(const Vector3 &pt) const;
nuclear@13 38 bool intersect(const Ray &ray, HitPoint *hit = 0) const;
nuclear@13 39 };
nuclear@13 40
nuclear@13 41 class AABox : public GeomObject {
nuclear@13 42 public:
nuclear@13 43 Vector3 min, max;
nuclear@13 44
nuclear@13 45 AABox();
nuclear@13 46 AABox(const Vector3 &min, const Vector3 &max);
nuclear@13 47
nuclear@13 48 void set_union(const GeomObject *obj1, const GeomObject *obj2);
nuclear@13 49 void set_intersection(const GeomObject *obj1, const GeomObject *obj2);
nuclear@13 50
nuclear@13 51 bool contains(const Vector3 &pt) const;
nuclear@13 52 bool intersect(const Ray &ray, HitPoint *hit = 0) const;
nuclear@13 53 };
nuclear@13 54
nuclear@13 55 class Plane : public GeomObject {
nuclear@13 56 public:
nuclear@13 57 Vector3 pt, normal;
nuclear@13 58
nuclear@13 59 Plane();
nuclear@13 60 Plane(const Vector3 &pt, const Vector3 &normal);
nuclear@13 61 Plane(const Vector3 &p1, const Vector3 &p2, const Vector3 &p3);
nuclear@13 62 Plane(const Vector3 &normal, float dist);
nuclear@13 63
nuclear@13 64 void set_union(const GeomObject *obj1, const GeomObject *obj2);
nuclear@13 65 void set_intersection(const GeomObject *obj1, const GeomObject *obj2);
nuclear@13 66
nuclear@13 67 bool contains(const Vector3 &pt) const;
nuclear@13 68 bool intersect(const Ray &ray, HitPoint *hit = 0) const;
nuclear@13 69 };
nuclear@13 70
nuclear@13 71 #endif // GEOMOBJ_H_