How to get time and do an action when the player kills a specific mob?

I'm making this plugin for hunts for mobs (e.g. there may be a server-wide hunt for spiders, etc) and I don't know how to get time from the server and how to initiate an action when the player kills a specific mob.
Help is greatly appreciated!
Thanks!

 

System.currentTimeMillis(); for system time... (You have to iterate what time it actually is though...)

Event.Type.ENTITY_DEATH might help you.

 

@feildmaster
Why not use getTime()?

As for the entity, you'd want to use onEntityDeath, and then check the cause to see if a player killed it. You could then act from there

 

@DrBoweNur : I forget some of the basic commands sometimes...

 

Thanks.

As for "you'd want to use onEntityDeath, and then check the cause to see if a player killed it. You could then act from there", could someone explain how?
Thanks again

 

Register : Event.Entity_Death

Code:

    public void onEntityDeath(EntityDeathEvent event) {
        DamageCause cause = event.getEntity().getLastDamageCause().getCause();
        if(cause == DamageCause.ENTITY_ATTACK || cause == DamageCause.PROJECTILE) {
            
        }
    }

something like that...

 

Code:

    CreatureType huntType = CreatureType.SPIDER;

    public void onEntityDeath(EntityDeathEvent event) {
        Entity entity = event.getEntity();
        CreatureType creatureType = CreatureType.fromName(entity.getClass().getSimpleName().replaceFirst("Craft", ""));
        if (creatureType == huntType) {
            EntityDamageEvent lastDamageCause = entity.getLastDamageCause();
            if(lastDamageCause instanceof EntityDamageByEntityEvent) {
                EntityDamageByEntityEvent entityDamageByEntityEvent = (EntityDamageByEntityEvent) lastDamageCause;
                Entity damager = entityDamageByEntityEvent.getDamager();
                if (damager instanceof Player) {
                    Player player = (Player) damager;
                    // Stuff
                }
            }
        }
    }