paulxstretch/deps/juce/modules/juce_opengl/geometry/juce_Vector3D.h
essej 25bd5d8adb git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce
subrepo:
  subdir:   "deps/juce"
  merged:   "b13f9084e"
upstream:
  origin:   "https://github.com/essej/JUCE.git"
  branch:   "sono6good"
  commit:   "b13f9084e"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"
2022-04-18 17:51:22 -04:00

84 lines
4.0 KiB
C++

/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2020 - Raw Material Software Limited
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 6 End-User License
Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
End User License Agreement: www.juce.com/juce-6-licence
Privacy Policy: www.juce.com/juce-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
namespace juce
{
//==============================================================================
/**
A three-coordinate vector.
@tags{OpenGL}
*/
template <typename Type>
class Vector3D
{
public:
Vector3D() noexcept : x(), y(), z() {}
Vector3D (Type xValue, Type yValue, Type zValue) noexcept : x (xValue), y (yValue), z (zValue) {}
Vector3D (const Vector3D& other) noexcept : x (other.x), y (other.y), z (other.z) {}
Vector3D& operator= (Vector3D other) noexcept { x = other.x; y = other.y; z = other.z; return *this; }
/** Returns a vector that lies along the X axis. */
static Vector3D xAxis() noexcept { return { (Type) 1, 0, 0 }; }
/** Returns a vector that lies along the Y axis. */
static Vector3D yAxis() noexcept { return { 0, (Type) 1, 0 }; }
/** Returns a vector that lies along the Z axis. */
static Vector3D zAxis() noexcept { return { 0, 0, (Type) 1 }; }
Vector3D& operator+= (Vector3D other) noexcept { x += other.x; y += other.y; z += other.z; return *this; }
Vector3D& operator-= (Vector3D other) noexcept { x -= other.x; y -= other.y; z -= other.z; return *this; }
Vector3D& operator*= (Type scaleFactor) noexcept { x *= scaleFactor; y *= scaleFactor; z *= scaleFactor; return *this; }
Vector3D& operator/= (Type scaleFactor) noexcept { x /= scaleFactor; y /= scaleFactor; z /= scaleFactor; return *this; }
Vector3D operator+ (Vector3D other) const noexcept { return { x + other.x, y + other.y, z + other.z }; }
Vector3D operator- (Vector3D other) const noexcept { return { x - other.x, y - other.y, z - other.z }; }
Vector3D operator* (Type scaleFactor) const noexcept { return { x * scaleFactor, y * scaleFactor, z * scaleFactor }; }
Vector3D operator/ (Type scaleFactor) const noexcept { return { x / scaleFactor, y / scaleFactor, z / scaleFactor }; }
Vector3D operator-() const noexcept { return { -x, -y, -z }; }
/** Returns the dot-product of these two vectors. */
Type operator* (Vector3D other) const noexcept { return x * other.x + y * other.y + z * other.z; }
/** Returns the cross-product of these two vectors. */
Vector3D operator^ (Vector3D other) const noexcept { return { y * other.z - z * other.y, z * other.x - x * other.z, x * other.y - y * other.x }; }
Type length() const noexcept { return std::sqrt (lengthSquared()); }
Type lengthSquared() const noexcept { return x * x + y * y + z * z; }
Vector3D normalised() const noexcept { return *this / length(); }
/** Returns true if the vector is practically equal to the origin. */
bool lengthIsBelowEpsilon() const noexcept
{
auto epsilon = std::numeric_limits<Type>::epsilon();
return ! (x < -epsilon || x > epsilon || y < -epsilon || y > epsilon || z < -epsilon || z > epsilon);
}
Type x, y, z;
};
} // namespace juce