118 lines
2.4 KiB
C++
118 lines
2.4 KiB
C++
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
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#include "Double2.h"
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#include "Double3.h"
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#include "Double4.h"
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#include "Vector2.h"
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#include "Vector3.h"
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#include "Vector4.h"
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#include "Color.h"
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#include "Int2.h"
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#include "Int3.h"
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#include "Int4.h"
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#include "../Types/String.h"
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static_assert(sizeof(Double2) == 16, "Invalid Double2 type size.");
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const Double2 Double2::Zero(0.0);
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const Double2 Double2::One(1.0);
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const Double2 Double2::UnitX(1.0, 0.0);
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const Double2 Double2::UnitY(0.0, 1.0);
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const Double2 Double2::Minimum(MIN_double);
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const Double2 Double2::Maximum(MAX_double);
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Double2::Double2(const Int2& xy)
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: X(static_cast<double>(xy.X))
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, Y(static_cast<double>(xy.Y))
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{
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}
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Double2::Double2(const Int3& xyz)
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: X(static_cast<double>(xyz.X))
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, Y(static_cast<double>(xyz.Y))
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{
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}
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Double2::Double2(const Int4& xyzw)
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: X(static_cast<double>(xyzw.X))
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, Y(static_cast<double>(xyzw.Y))
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{
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}
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Double2::Double2(const Vector2& xy)
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: X(static_cast<double>(xy.X))
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, Y(static_cast<double>(xy.Y))
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{
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}
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Double2::Double2(const Vector3& xyz)
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: X(xyz.X)
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, Y(xyz.Y)
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{
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}
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Double2::Double2(const Vector4& xyzw)
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: X(xyzw.X)
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, Y(xyzw.Y)
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{
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}
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Double2::Double2(const Double3& xyz)
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: X(xyz.X)
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, Y(xyz.Y)
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{
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}
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Double2::Double2(const Double4& xyzw)
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: X(xyzw.X)
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, Y(xyzw.Y)
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{
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}
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Double2::Double2(const Color& color)
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: X(color.R)
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, Y(color.G)
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{
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}
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String Double2::ToString() const
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{
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return String::Format(TEXT("{}"), *this);
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}
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Double2 Double2::Normalize(const Double2& v)
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{
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Double2 result = v;
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const double length = v.Length();
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if (!Math::IsZero(length))
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{
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const double inv = 1. / length;
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result.X *= inv;
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result.Y *= inv;
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}
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return result;
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}
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Int2 Double2::CeilToInt(const Double2& v)
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{
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return Int2((int32)Math::CeilToInt(v.X), (int32)Math::CeilToInt(v.Y));
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}
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Int2 Double2::FloorToInt(const Double2& v)
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{
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return Int2((int32)Math::FloorToInt(v.X), (int32)Math::FloorToInt(v.Y));
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}
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double Double2::TriangleArea(const Double2& v0, const Double2& v1, const Double2& v2)
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{
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return Math::Abs((v0.X * (v1.Y - v2.Y) + v1.X * (v2.Y - v0.Y) + v2.X * (v0.Y - v1.Y)) / 2.);
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}
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double Double2::Angle(const Double2& from, const Double2& to)
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{
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const double dot = Math::Clamp(Dot(Normalize(from), Normalize(to)), -1.0, 1.0);
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if (Math::Abs(dot) > (1.0 - ZeroTolerance))
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return dot > 0.0 ? 0.0 : PI;
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return Math::Acos(dot);
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}
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