forked from dolphin-emu/dolphin
86 lines
2.1 KiB
C++
86 lines
2.1 KiB
C++
// Copyright 2010 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#pragma once
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#include <cmath>
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#include <cstdlib>
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class Vec3
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{
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public:
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float x, y, z;
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Vec3() {}
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explicit Vec3(float f) { x = y = z = f; }
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explicit Vec3(const float* f)
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{
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x = f[0];
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y = f[1];
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z = f[2];
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}
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Vec3(const float _x, const float _y, const float _z)
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{
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x = _x;
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y = _y;
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z = _z;
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}
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void set(const float _x, const float _y, const float _z)
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{
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x = _x;
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y = _y;
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z = _z;
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}
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Vec3 operator+(const Vec3& other) const { return Vec3(x + other.x, y + other.y, z + other.z); }
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void operator+=(const Vec3& other)
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{
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x += other.x;
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y += other.y;
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z += other.z;
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}
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Vec3 operator-(const Vec3& v) const { return Vec3(x - v.x, y - v.y, z - v.z); }
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void operator-=(const Vec3& other)
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{
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x -= other.x;
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y -= other.y;
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z -= other.z;
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}
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Vec3 operator-() const { return Vec3(-x, -y, -z); }
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Vec3 operator*(const float f) const { return Vec3(x * f, y * f, z * f); }
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Vec3 operator/(const float f) const
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{
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float invf = (1.0f / f);
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return Vec3(x * invf, y * invf, z * invf);
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}
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void operator/=(const float f) { *this = *this / f; }
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float operator*(const Vec3& other) const { return (x * other.x) + (y * other.y) + (z * other.z); }
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void operator*=(const float f) { *this = *this * f; }
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Vec3 ScaledBy(const Vec3& other) const { return Vec3(x * other.x, y * other.y, z * other.z); }
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Vec3 operator%(const Vec3& v) const
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{
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return Vec3((y * v.z) - (z * v.y), (z * v.x) - (x * v.z), (x * v.y) - (y * v.x));
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}
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float Length2() const { return (x * x) + (y * y) + (z * z); }
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float Length() const { return sqrtf(Length2()); }
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float Distance2To(Vec3& other) { return (other - (*this)).Length2(); }
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Vec3 Normalized() const { return (*this) / Length(); }
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void Normalize() { (*this) /= Length(); }
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float& operator[](int i) { return *((&x) + i); }
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float operator[](const int i) const { return *((&x) + i); }
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bool operator==(const Vec3& other) const { return x == other.x && y == other.y && z == other.z; }
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void SetZero()
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{
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x = 0.0f;
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y = 0.0f;
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z = 0.0f;
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}
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};
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