X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fvector.cpp;h=20b8ef5f99e5bde36b6020120042d4691a1f222b;hb=6114b754fcd6e7d83c71dc2fa0ef2ec185387e12;hp=53c6bfef4ab0d49e25c5baf0a18bb56569aa86ac;hpb=acd27aa62a4c78b6aeee523e3145a8aa53f4bcde;p=architektonas

diff --git a/src/vector.cpp b/src/vector.cpp
index 53c6bfe..20b8ef5 100644
--- a/src/vector.cpp
+++ b/src/vector.cpp
@@ -194,7 +194,8 @@ Vector Vector::Unit(void)
 {
 	double mag = Magnitude();
 
-	// If the magnitude of the vector is zero, then the Unit vector is undefined...
+	// If the magnitude of the vector is zero, then the Unit vector is
+	// undefined...
 	if (mag == 0)
 		return Vector(0, 0, 0);
 
@@ -210,15 +211,11 @@ double Vector::Magnitude(void)
 
 double Vector::Angle(void)
 {
-	// acos returns a value between zero and PI, which means we don't know which
-	// quadrant the angle is in... Though, if the y-coordinate of the vector is
-	// negative, that means that the angle is in quadrants III - IV.
+	// acos returns a value between zero and TAU/2, which means we don't know
+	// which quadrant the angle is in... However, if the y-coordinate of the
+	// vector is negative, that means that the angle is in quadrants III - IV.
 	double rawAngle = acos(Unit().x);
-#if 0
-	double correctedAngle = (y < 0 ? (2.0 * PI) - rawAngle : rawAngle);
-#else
 	double correctedAngle = (y < 0 ? TAU - rawAngle : rawAngle);
-#endif
 
 	return correctedAngle;
 }
@@ -289,10 +286,10 @@ bool Vector::isZero(double epsilon/*= 1e-6*/)
 	// This is done using the following formula:
 	// (a . b) = ||a|| ||b|| cos(theta)
 	// However, have to check for two degenerate cases, where a = cb:
-	// 1, if c > 0, theta = 0; 2, if c < 0, theta = 180°.
+	// 1) if c > 0, theta = 0; 2) if c < 0, theta = 180°.
 	// Also, the vectors a & b have to be non-zero.
 	// Also, have to check using an epsilon because acos will not return an
-	// exact value if the vectors are orthogonal
+	// exact value if the vectors are orthogonal.
 	if (a.isZero() || b.isZero())
 		return 0;