1 files changed, 6 insertions, 2 deletions
diff --git a/src/gl/sphere.cc b/src/gl/sphere.cc
index 1c21ee5..e28e495 100644
--- a/src/gl/sphere.cc
+++ b/src/gl/sphere.cc
@@ -4,8 +4,11 @@
    the terms of the GNU General Public License version 2 
 */
 
-#include "sphere.h"
-#include "common/functions.h"
+#include "gl/sphere.h"
+#include "math/mathlib.h"
+
+using math::Vector3f;
+using math::Color;
 
 namespace gl {
 
@@ -42,6 +45,7 @@ Sphere& Sphere::operator=(const Sphere &other)
 {
 	position = other.position;
 	radius = other.radius;
+	return (*this);
 }
 
 void Sphere::draw()