Help with working on an AntiCheat

[King Archie]

I just started a small scale anti cheat that has some nifty checks, but I'm confused as to why this isn't working / is really inaccurate:

    @EventHandler
    public void onClick(PlayerInteractEvent e) {
        Long current = System.currentTimeMillis();
        if (e.getAction() == Action.LEFT_CLICK_AIR || e.getAction() == Action.LEFT_CLICK_BLOCK) {
            Player player = e.getPlayer();
            if (!lastClick.containsKey(player.getUniqueId())) {
                lastClick.put(player.getUniqueId(), current);
                return;
            }

            Long timeBetween = current - lastClick.get(player.getUniqueId());
            System.out.println(timeBetween);
            lastClick.remove(player.getUniqueId());
            lastClick.put(player.getUniqueId(), current);
        }
    }

That should get the MS between every click - but for some reason it is really inaccurate e.g 0ms gap between clicks.

 

[King Archie]

If this is a problem I'm not too sure if you can create a anti-cheat, just fyi...

Huh? It's inaccurate as fuck and I'm looking for a better way. I'm using PlayerSwingEvent now.[DOUBLEPOST=1492462835][/DOUBLEPOST]

If this is a problem I'm not too sure if you can create a anti-cheat, just fyi...

I don't understand how to make it more accurate? I want to get the ms between clicks.