Add 2D angle -> direction function

2021-04-10 16:47:51 +03:00 · 2021-04-10 16:47:51 +03:00 · e02efd2f7b
commit e02efd2f7b
parent 78eec7085d
1 changed files with 6 additions and 0 deletions
--- a/libs/geom/include/psemek/geom/vector.hpp
+++ b/libs/geom/include/psemek/geom/vector.hpp
@ -302,6 +302,12 @@ namespace psemek::geom
 		return ort(v0, v1);
 	}

+	template <typename T>
+	vector<T, 2> direction(T angle)
+	{
+		return {std::cos(angle), std::sin(angle)};
+	}
+
 	template <typename T, std::size_t N>
 	vector<T, N> pointwise_mult(vector<T, N> const & v0, vector<T, N> const & v1)
 	{