#include "rive/math/vec2d.hpp" | |
#include "rive/math/mat2d.hpp" | |
#include <cmath> | |
using namespace rive; | |
Vec2D Vec2D::transformDir(const Vec2D& a, const Mat2D& m) { | |
return { | |
m[0] * a.x + m[2] * a.y, | |
m[1] * a.x + m[3] * a.y, | |
}; | |
} | |
float Vec2D::length() const { return std::sqrt(lengthSquared()); } | |
Vec2D Vec2D::normalized() const { | |
auto len2 = lengthSquared(); | |
auto scale = len2 > 0 ? (1 / std::sqrt(len2)) : 1; | |
return *this * scale; | |
} |