marked distanceTo as const

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

@@ -54,7 +54,7 @@ public:
     void rotate(const Vector3 &v, u8 inversed = false);
     void set(const float &t_x, const float &t_y, const float &t_z);
     void copy(Vector3 &v);
-    float distanceTo(Vector3 &v);
+    float distanceTo(const Vector3 &v) const;
     const void print() const;
 };
 

src/engine/models/math/vector3.cpp

@@ -298,7 +298,7 @@ void Vector3::copy(Vector3 &v)
         : "$6");
 }
 
-float Vector3::distanceTo(Vector3 &v)
+float Vector3::distanceTo(const Vector3 &v) const
 {
     register float result;
     asm volatile( // VU0 Macro program