onDrawFrame

    @Override
    public void onDrawFrame(GL10 gl)
    {
        long t0 = gameClock.getCurrentTime();
        long elapsedTime = gameClock.getCurrentTime() - t0;
        while(elapsedTime >= gameClock.getGamePlayRate())
        {
            updatePlayer();
            updateCamera();
            t0 += gameClock.getGamePlayRate();
            elapsedTime = gameClock.getCurrentTime() - t0;
        }
        GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
        GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT);
        drawSkyBox();
        drawPlayer();
        drawMaze();
        collisionDetectionAndResponse();
    }