fixes for real ps2 (vwaitq), and cosmetic changes

src/engine/include/models/math/vector3.hpp

@@ -39,7 +39,8 @@ public:
     Vector3 operator+(Vector3 v);
     Vector3 operator-(const Vector3 &v);
     Vector3 operator*(Vector3 &v);
-    Vector3 operator*(float t);
+    Vector3 operator*(const float &t);
+    void operator*=(const float &t);
     Vector3 operator/(float t);
     Vector3 operator-(void);