Wellinator
98 lines
2.1 KiB
C++
98 lines
2.1 KiB
C++
/*
|
|
# ______ ____ ___
|
|
# | \/ ____| |___|
|
|
# | | | \ | |
|
|
#-----------------------------------------------------------------------
|
|
# Copyright 2020-2022, tyra - https://github.com/h4570/tyra
|
|
# Licenced under Apache License 2.0
|
|
# Wellington Carvalho <wellcoj@gmail.com>
|
|
*/
|
|
|
|
#include "math/vec4.hpp"
|
|
|
|
#pragma once
|
|
|
|
namespace Tyra {
|
|
|
|
/**
|
|
* Class for raycasting.
|
|
*/
|
|
class Ray {
|
|
public:
|
|
/**
|
|
* Constructor create a ampty ray
|
|
*
|
|
*/
|
|
Ray();
|
|
|
|
/**
|
|
* Constructor
|
|
* @param origin The origin of the ray
|
|
* @param direction The direction of the ray (normalized Vec4)
|
|
*
|
|
*/
|
|
Ray(Vec4* origin, Vec4* direction);
|
|
~Ray();
|
|
|
|
Vec4 origin;
|
|
Vec4 direction;
|
|
|
|
// Methods
|
|
|
|
/**
|
|
* Set origin and direction
|
|
*/
|
|
void set(Vec4 origin, Vec4 direction);
|
|
|
|
/**
|
|
* Set origin only
|
|
*/
|
|
void setOrigin(Vec4 origin);
|
|
void setOrigin(const float& t_x, const float& t_y, const float& t_z);
|
|
|
|
/**
|
|
* Set direction only
|
|
*/
|
|
void setDirection(Vec4 origin);
|
|
void setDirection(const float& t_x, const float& t_y, const float& t_z);
|
|
|
|
/**
|
|
* Return Vec4 that is a given distance along this Ray
|
|
* @param t - the distance along the Ray to retrieve a position for.
|
|
*/
|
|
Vec4 at(float t);
|
|
|
|
/**
|
|
* Return the distance from the Vec4 point to the origin
|
|
*/
|
|
float distanceToPoint(Vec4 point);
|
|
|
|
/**
|
|
* Returns distance from origin to intersected mesh
|
|
*/
|
|
float distanceTo(const Vec4& v) const;
|
|
|
|
/**
|
|
* Returns Vec4 of intersection position
|
|
* @param minCorner - pointer to min corner position. (bottom left)
|
|
* @param maxCorner - pointer to max corner position. (top right)
|
|
* @param distance - the box to intersect with.
|
|
*
|
|
*/
|
|
u8 intersectBox(Vec4* minCorner, Vec4* maxCorner, float& distance);
|
|
|
|
/**
|
|
* Returns distance from origin to intersected mesh
|
|
*/
|
|
inline const Vec4 getPosition() { return _position; };
|
|
|
|
/**
|
|
* Returns inverse direction
|
|
*/
|
|
Vec4 invDir();
|
|
|
|
private:
|
|
Vec4 _position;
|
|
};
|
|
|
|
} // namespace Tyra
|