refactoring

src/lib/Clickable.js

@@ -16,6 +16,11 @@ class Clickable {
             delete object._clickable;
         };
 
+        this.removeAll = function(){
+            objects.forEach(o=>delete o._clickable)
+            objects.splice(0, objects.length);
+        }
+
         this.update = function (mouse, camera, event) {
             raycaster.setFromCamera(mouse, camera);
             let forExecute = [];