75 lines
1.5 KiB
C++
75 lines
1.5 KiB
C++
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
|
|
|
|
#include "Vector2.h"
|
|
#include "Vector3.h"
|
|
#include "Vector4.h"
|
|
#include "Color.h"
|
|
#include "Int2.h"
|
|
#include "../Types/String.h"
|
|
|
|
static_assert(sizeof(Vector2) == 8, "Invalid Vector2 type size.");
|
|
|
|
const Vector2 Vector2::Zero(0);
|
|
const Vector2 Vector2::One(1);
|
|
const Vector2 Vector2::UnitX(1, 0);
|
|
const Vector2 Vector2::UnitY(0, 1);
|
|
const Vector2 Vector2::Minimum(MIN_float);
|
|
const Vector2 Vector2::Maximum(MAX_float);
|
|
|
|
Vector2::Vector2(const Int2& v)
|
|
: X((float)v.X)
|
|
, Y((float)v.Y)
|
|
{
|
|
}
|
|
|
|
Vector2::Vector2(const Vector3& v)
|
|
: X(v.X)
|
|
, Y(v.Y)
|
|
{
|
|
}
|
|
|
|
Vector2::Vector2(const Vector4& v)
|
|
: X(v.X)
|
|
, Y(v.Y)
|
|
{
|
|
}
|
|
|
|
Vector2::Vector2(const Color& color)
|
|
: X(color.R)
|
|
, Y(color.G)
|
|
{
|
|
}
|
|
|
|
String Vector2::ToString() const
|
|
{
|
|
return String::Format(TEXT("{}"), *this);
|
|
}
|
|
|
|
Vector2 Vector2::Normalize(const Vector2& v)
|
|
{
|
|
Vector2 result = v;
|
|
const float length = v.Length();
|
|
if (!Math::IsZero(length))
|
|
{
|
|
const float inv = 1.0f / length;
|
|
result.X *= inv;
|
|
result.Y *= inv;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
Int2 Vector2::CeilToInt(const Vector2& v)
|
|
{
|
|
return Int2(Math::CeilToInt(v.X), Math::CeilToInt(v.Y));
|
|
}
|
|
|
|
Int2 Vector2::FloorToInt(const Vector2& v)
|
|
{
|
|
return Int2(Math::FloorToInt(v.X), Math::FloorToInt(v.Y));
|
|
}
|
|
|
|
float Vector2::TriangleArea(const Vector2& v0, const Vector2& v1, const Vector2& v2)
|
|
{
|
|
return Math::Abs((v0.X * (v1.Y - v2.Y) + v1.X * (v2.Y - v0.Y) + v2.X * (v0.Y - v1.Y)) / 2);
|
|
}
|