60 lines
2.0 KiB
C++
60 lines
2.0 KiB
C++
/*
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* DoRayMe - a quick and dirty Raytracer
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* Tuples header
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*
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* Created by Manoël Trapier
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* Copyright (c) 2020 986-Studio.
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*
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*/
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#ifndef DORAYME_TUPLE_H
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#define DORAYME_TUPLE_H
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#include <math_helper.h>
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class Tuple
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{
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public:
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double x, y, z, w;
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public:
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Tuple(double x, double y, double z) : x(x), y(y), z(z), w(0.0) {};
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Tuple(double x, double y, double z, double w) : x(x), y(y), z(z), w(w) {};
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bool isPoint() { return (this->w == 1.0); };
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bool isVector() { return (this->w == 0.0); };
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bool operator==(const Tuple &b) const { return double_equal(this->x, b.x) &&
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double_equal(this->y, b.y) &&
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double_equal(this->z, b.z) &&
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double_equal(this->w, b.w); };
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Tuple operator+(const Tuple &b) const { return Tuple(this->x + b.x, this->y + b.y,
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this->z + b.z, this->w + b.w); };
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Tuple operator-(const Tuple &b) const { return Tuple(this->x - b.x, this->y - b.y,
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this->z - b.z, this->w - b.w); };
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Tuple operator-() const { return Tuple(-this->x, -this->y, -this->z, -this->w); };
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Tuple operator*(const double &b) const { return Tuple(this->x * b, this->y * b,
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this->z * b, this->w * b); };
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Tuple operator/(const double &b) const { return Tuple(this->x / b, this->y / b,
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this->z / b, this->w / b); };
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double magnitude();
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Tuple normalise();
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double dot(const Tuple &b);
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};
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class Point: public Tuple
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{
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public:
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Point(double x, double y, double z) : Tuple(x, y, z, 1.0) {};
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};
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class Vector: public Tuple
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{
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public:
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Vector(double x, double y, double z) : Tuple(x, y, z, 0.0) {};
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Vector cross(const Vector &b) const;
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};
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#endif /*DORAYME_TUPLE_H*/
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