HashMap<Player, Double> lastY = new HashMap<>();
	HashMap<Player, Double> lastDiff = new HashMap<>();
	HashMap<Player, Integer> lv = new HashMap<>();

	public MotionC(String name, CheckType type, boolean enabled, boolean punishable, int max) {
		super(name, type, enabled, punishable, max);
		ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(Plugin.get(),
                PacketType.Play.Client.POSITION,
                PacketType.Play.Client.POSITION_LOOK) {
            @Override
            public void onPacketReceiving(PacketEvent e) {
            	Player p = e.getPlayer();
            	PlayerUtils data = new PlayerUtils(p);

            	double y = p.getLocation().getY();

            	if(!lastY.containsKey(p))
            	{
            		lastY.put(p, y);
            		return;
            	}

            	if(data.isNearLiquid())
            	{
            		lastY.put(p, y);
            		return;
            	}

            	if(data.blockNearHead())
            	{
            		lastY.put(p, y);
            		return;
            	}

            	if(data.isNearClimbable() || data.isOnClimbable())
            	{
            		lastY.put(p, y);
            		return;
            	}

            	double ly = lastY.get(p);
            	lastY.put(p, y);

            	double diff = y-ly;

            	if(!lastDiff.containsKey(p))
            	{
            		lastDiff.put(p, diff);
            		return;
            	}

            	double lDiff = lastDiff.get(p);
            	lastDiff.put(p, diff);

            	if(!p.isFlying() && diff == lDiff && diff != 0.0D)
            	{
            		if(!lv.containsKey(p))
            		{
            			lv.put(p, 1);
            		}else
            		{
            			lv.put(p, lv.get(p)+1);
            		}

            		if(lv.get(p) > 1)
            		{
            			flag(p, "Ydist = " + diff + ", Last-Ydist = " + lDiff + ", Is-Flying = " + p.isFlying());
            			lv.put(p, 0);
            		}
            	}else
            	{
        			lv.put(p, 0);
            	}

            }
        });
	}