Aggiunta finestra di controllo visibilità

src/collections/headers/collection_interface.hpp

@@ -22,9 +22,13 @@ class CollectionInterface{
             transparency = alpha;
             return true;
         }; 
-        float getTransparency() {
+        virtual bool getVisibility(){
+            return isVisible;
+        }
+        virtual float getTransparency() {
             return transparency;
         }
+
         virtual void setVisibility(bool c) {
             isVisible = c;
         }

src/collections/methods/gamba.cpp

@@ -63,13 +63,7 @@ void Gamba::setDirection(Direction dir){
 float Gamba::getZ_Acc(){
     
     float totZ_Acc = 0;
-    /*
-    for (auto i : sensori){
-        totZ_Acc += i->getZ_Acc();
-    }*/
-    
     totZ_Acc = sensori[0]->getZ_Acc() + sensori[1]->getZ_Acc();
-    //printf("TotAccGamba %f\n", totZ_Acc);
 
     return totZ_Acc;
 }