cleaning angle to function

2020-11-04 21:34:42 +01:00 · 2020-11-04 21:34:42 +01:00 · 49c306fcbe
parent 380d77f63e
commit 49c306fcbe
1 changed files with 1 additions and 2 deletions
--- a/geometry.go
+++ b/geometry.go
@ -189,8 +189,7 @@ func (u Vec) Project(v Vec) Vec {

 // AngleTo returns angle between u and v.
 func (u Vec) AngleTo(v Vec) float64 {
-	u, v = u.Unit(), v.Unit()
-	return math.Cos(u.Dot(v))
+	return math.Cos(u.Unit().Dot(v.Unit()))
 }

 // Map applies the function f to both x and y components of the vector u and returns the modified