Implemented getHeight

Vector.cpp

@@ -80,6 +80,11 @@ bool Vec3f::operator!=(const Vec3f & other)
 	return x != other.x & y != other.y & z != other.z;
 }
 
+Vec3f Vec3f::operator*(const float & other)
+{
+	return Vec3f(x*other, y*other, z*other);
+}
+
 Vec3f Vec3f::cross(const Vec3f & other)
 {
 	return Vec3f(