void Update()
    {
        correct = playerCollision.correct;


        //when triggered fills an array of bridges and an array of all letter grid pieces
        if (LoadQuestion.trigger)
        {
            Colliders.trig       = true;
            LoadQuestion.trigger = false;
            fillTextArray();
            Bridges = GameObject.FindGameObjectsWithTag("Bridge");
        }

        //when the player asnwers correctly the bridge appears, the board turns blank and the next question is loaded
        if (playerCollision.correct == true /*|| Input.GetKeyDown("space")*/)
        {
            playerCollision.correct = false;
            rend = Bridges[bridgeCount].GetComponent <Renderer>();
            Colliders.RemoveCollider(bridgeCount);
            rend.enabled = true;
            StopColliders();

            bridgeCount++;
            corrAns++;
            questionLevel++;

            Load.GetQuestion(questionLevel);
            answerLocation();
        }
    }