83 lines
1.9 KiB
C
83 lines
1.9 KiB
C
/* basics.h
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*
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* Declaration of basic types.
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*
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* - Vector3 is a three tuple vector of x, y, and z.
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* - Ray is a vector plus a direction.
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* - Color is a four tuple of red, green, blue, and alpha.
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*
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* Eryn Wells <eryn@erynwells.me>
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*/
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#ifndef __BASICS_H__
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#define __BASICS_H__
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struct Vector3
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{
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Vector3();
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Vector3(float x, float y, float z);
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Vector3 &operator=(const Vector3 &v);
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Vector3 &operator*=(const float &rhs);
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Vector3 &operator/=(const float &rhs);
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Vector3 &operator+=(const Vector3 &rhs);
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Vector3 &operator-=(const Vector3 &rhs);
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Vector3 operator*(const float &rhs) const;
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Vector3 operator/(const float &rhs) const;
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Vector3 operator+(const Vector3 &rhs) const;
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Vector3 operator-(const Vector3 &rhs) const;
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Vector3 operator-() const;
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bool operator==(const Vector3 &rhs) const;
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bool operator!=(const Vector3 &rhs) const;
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float length2() const;
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float length() const;
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float dot(const Vector3 &v) const;
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Vector3 &normalize();
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static const Vector3 Zero;
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float x, y, z;
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};
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const Vector3 operator*(const float &lhs, const Vector3 &rhs);
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struct Ray
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{
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Ray();
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Ray(Vector3 o, Vector3 d);
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Vector3 parameterize(const float t) const;
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Vector3 origin, direction;
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};
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struct Color
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{
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Color();
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Color(float r, float g, float b, float a);
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Color &operator*=(const float &rhs);
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Color &operator/=(const float &rhs);
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Color &operator+=(const float &rhs);
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Color &operator-=(const float &rhs);
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Color operator*(const float &rhs) const;
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Color operator/(const float &rhs) const;
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Color operator+(const float &rhs) const;
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Color operator-(const float &rhs) const;
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Color &operator=(const Color &rhs);
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static const Color Black;
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static const Color White;
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static const Color Red;
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static const Color Green;
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static const Color Blue;
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float red, green, blue, alpha;
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};
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#endif
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