From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 30 Jan 2025 18:28:06 +0000 (+0200)
Subject: Add some shorthand syntaxes for angles and quaternions
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;ds=inline;p=libs%2Fmath.git

Add some shorthand syntaxes for angles and quaternions
---

diff --git a/source/geometry/angle.h b/source/geometry/angle.h
index c6baf1a..5239d42 100644
--- a/source/geometry/angle.h
+++ b/source/geometry/angle.h
@@ -252,6 +252,24 @@ inline Angle<T> atan2(T y, T x)
 	return Angle<T>::from_radians(atan2(y, x));
 }
 
+const struct { } degrees;
+
+template<typename T>
+inline Angle<T> operator*(T value, const decltype(degrees) &)
+{ return Angle<T>::from_degrees(value); }
+
+const struct { } radians;
+
+template<typename T>
+inline Angle<T> operator*(T value, const decltype(radians) &)
+{ return Angle<T>::from_radians(value); }
+
+const struct { } turns;
+
+template<typename T>
+inline Angle<T> operator*(T value, const decltype(turns) &)
+{ return Angle<T>::from_turns(value); }
+
 } // namespace Geometry
 } // namespace Msp
 
diff --git a/source/geometry/quaternion.h b/source/geometry/quaternion.h
index 2e15c1a..6623946 100644
--- a/source/geometry/quaternion.h
+++ b/source/geometry/quaternion.h
@@ -256,6 +256,14 @@ LinAl::Matrix<T, 3, 3> Quaternion<T>::to_matrix() const
 	return LinAl::Matrix<T, 3, 3>::from_columns(columns);
 }
 
+template<typename T>
+inline Quaternion<T> make_quat(Angle<T> angle, const LinAl::Vector<T, 3> &axis)
+{ return Quaternion<T>::rotation(angle, axis); }
+
+template<typename T>
+inline Quaternion<T> make_quat(const LinAl::Vector<T, 3> &from, const LinAl::Vector<T, 3> &to)
+{ return Quaternion<T>::rotation(from, to); }
+
 } // namespace Geometry
 } // namespace Msp