fix : nbDifficulty

Website/controllers/ControllerUser.php

@@ -230,7 +230,7 @@ class ControllerUser
             if ($_SESSION["Questions"][$numQuestion]->getIdAnswerGood() == $_SESSION["Answers"][$numQuestion][$answerNumber]->getId()) {
                 $time = $_SESSION["PrevTime"]->diff($_SESSION["CurrTime"]);
                 $_SESSION["Score"] = $_SESSION["Score"] + 80 + 40 * ((30 - $time->s) / 100 * 10 / 3);
-                if ($_SESSION["Questions"][$numQuestion]->getDifficulty() > 0) {
+                if ($_SESSION["Questions"][$numQuestion]->getDifficulty() > 1) {
                     $_SESSION["Questions"][$numQuestion]->setDifficulty($_SESSION["Questions"][$numQuestion]->getDifficulty() - 1);
                     $this->mdQuestion->updateDifficulty($_SESSION["Questions"][$numQuestion]);
                 }