Ray.h

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#pragma once
 
#include "Vec3.h"
#include "Mat4.h"
#include <vector>
 
struct Ray
{
    Vec3 origin;    
    Vec3 direction; 
 
    Ray();
 
    Ray(const Vec3 &origin, const Vec3 &direction);
 
    Vec3 GetPoint(float t) const;
 
    bool IntersectSphere(const Vec3 &center, float radius, float &t) const;
 
    bool IntersectAABB(const Vec3 &minBounds, const Vec3 &maxBounds, float &t) const;
 
    bool IntersectTriangle(const Vec3 &v0, const Vec3 &v1, const Vec3 &v2, float &t) const;
 
    bool IntersectMesh(const std::vector<float> &vertices, const std::vector<unsigned int> &indices, float &t) const;
 
    bool IntersectMesh(const std::vector<float> &vertices, const std::vector<unsigned int> &indices, const Mat4 &transform, float &t) const;
 
    Vec3 GetOrigin() const;
 
    Vec3 GetDirection() const;
 
    static Vec3 ClosestPointOnLine(const Vec3 &rayOrigin,
                                   const Vec3 &linePoint, const Vec3 &lineDirection);
 
    static float DistanceToLineSegment(const Vec3 &rayOrigin, const Vec3 &rayDirection,
                                       const Vec3 &segmentStart, const Vec3 &segmentEnd);
};