Add a dummy debug drawer

This debug drawer will do nothing, it is the same as if you disabled
the debug drawer

src/client/Game.cpp

@@ -221,7 +221,8 @@ Game::Game(Window* w, Framebuffer* fb3D, Framebuffer* fbGUI, GUIManager* gr, Pla
 
         ObjectPathManager::getInstance()->SetTerrain(terr);
 
-        LogicService::initDebugDrawer(new GFXDebugDrawer(*rndr, *terr));
+        LogicService::initDebugDrawer(new DummyDebugDrawer(*terr));
+        //LogicService::initDebugDrawer(new GFXDebugDrawer(*rndr, *terr));
 
         pm->olm = olm;
         pm->pf  = pathf;

src/include/client/graphical/gfx_debug_drawer.hpp

@@ -18,6 +18,28 @@ struct VHData {
     uint64_t last_tick;
 };
 
+
+/**
+ * A dummy debug drawer
+ * 
+ * It does not render anywhere
+ */
+class DummyDebugDrawer : public familyline::logic::DebugDrawer
+{
+public:
+    DummyDebugDrawer(const familyline::logic::Terrain &terr)
+        : DebugDrawer(terr) {}
+
+    virtual void drawLine(glm::vec3 start, glm::vec3 end, glm::vec4 color) {}
+    virtual void drawSquare(
+        glm::vec3 start, glm::vec3 end, glm::vec4 foreground, glm::vec4 background) {}
+    virtual void drawCircle(
+        glm::vec3 point, glm::vec3 radius, glm::vec4 foreground, glm::vec4 background) {}
+
+    /// Update some internal structure
+    virtual void update() {}
+};
+
 class GFXDebugDrawer : public familyline::logic::DebugDrawer
 {
 private: