Solved Invincibility for 3 seconds

Hi, I'm making a plugin where you can place down a nether portal and everyone within 1 block of x and z and whatever height will be teleported to this 1 block. I would like to make them have invincibilty for 3 seconds when they get teleported but im not sure how.
here are my variables set:

Code:java

    public void onPlayerInteract (PlayerInteractEvent event) {
    Player player = event.getPlayer();
    final Block b = event.getClickedBlock();
    Material c = event.getClickedBlock().getType();
    Player victims = (Player) player.getNearbyEntities(1, 128, 1);
 

Here is my code:

Code:java

if (event.getAction() == Action.RIGHT_CLICK_BLOCK) {
        if (player.getItemInHand() == new ItemStack (Material.PORTAL)) {
            b.setType(Material.ENDER_PORTAL_FRAME);
            player.getInventory().remove(Material.PORTAL);
            cooldown.add(b);
    if (!(victims.equals(null))) {
        player.teleport(b.getLocation());
        victims.teleport(player);
        b.setType(c);
        player.getInventory().addItem(new ItemStack (Material.PORTAL));
        //give the player and victims invincibility for 3 seconds
 
        Bukkit.getServer().getScheduler().scheduleSyncDelayedTask(this, new Runnable() {
        public void run() {
            cooldown.remove(b);
            }
        }, 100);
        return;

 

You need to setup a Collection of names that are in a class where it is accessible, this way you can add names to this collection, and on EntityDamageEvent, check if the entity is an instanceof Player etc... Then if they're a player loop through the collection of names and compare it the player's name, if it matches cancel the event/setDamage(0.0D);. Now, the way you add names is up to you, but simply get the collection and add the name to it when you teleport the players then create a new delayed task that after 3 seconds (20L * 3L) remove the name from the collection- effectively removing their invincibility.

 

Wingzzz
Or... you could just

Code:java

PotionEffect invincibility = new PotionEffect(PotionEffectType.DAMAGE_RESISTANCE, 60, 4);
for(Player player:playersThatWereTeleported){
    player.addPotionEffect(invincibility);
} 

because a resistance level of >=4 will give the player invincibility.

willy00
To add it to your code, just replace your line 11 with

Code:java

player.addPotionEffect(invincibility);
victim.addPotionEffect(invincibility);

but make sure to initialize

Code:java

PotionEffect invincibility = new PotionEffect(PotionEffectType.DAMAGE_RESISTANCE, 60, 4);

when you initialize your event class

 

Thx so much.

 

willy00
No problems