Only handle event after a certain event has happened

I don't really know how to word the title, but this is my problem.
I am trying to make a plugin, where you throw an enderpearl and it first waits 3 seconds before you teleport and you don't get fall damage.
The problem is that I don't know how I can disable the fall damage only after the projectile launch event has happened. This is the code I have right now:

Code:

package me.Ruud.UltimateEnderpearl;

import org.bukkit.Location;
import org.bukkit.entity.EnderPearl;
import org.bukkit.entity.Player;
import org.bukkit.entity.Projectile;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.ProjectileLaunchEvent;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

/**
* @author Ruud.
*/
public class UltimateEnderpearl extends JavaPlugin implements Listener{

    int time;
    int taskID;

    @Override
    public void onEnable() {
        PluginManager pluginManager = getServer().getPluginManager();
        pluginManager.registerEvents(this, this);
    }

    @Override
    public void onDisable() {

    }

    @EventHandler
    public void onThrow(ProjectileLaunchEvent e) {
        if (e.getEntity() instanceof EnderPearl) {
            Projectile enderPearl = e.getEntity();
            if (enderPearl.getShooter() instanceof Player) {
                Player player = (Player) enderPearl.getShooter();
                e.setCancelled(true);
                this.getServer().getScheduler().scheduleSyncDelayedTask(this, () -> {
                    Location location = enderPearl.getLocation();
                    location.add(0, 10, 0);
                    player.teleport(location);
                }, 60L);
            }
        }
    }

}

 

@xX4w3s0m3Xx Listen to PlayerTeleportEvent
if the cause it's TeleportCause.enderpearl, cancel the event, and teleport the player to the location event.getTo() with a scheduler.

 

Code:

@EventHandler
public void onCancelFallDamage(EntityDamageEvent e) {
    if(e.getEntity() instanceof Player) { //Checks to see if the entity that is taking damage is a player
        if(e.getCause() == DamageCause.FALL) { //if the cause of damage is fall damage
            e.setCancelled(true); //you cancel the event.
        }
    }
    }

 

Ah, that's a good idea, thank you very much!

Wouldn't this disable all the fall damage?

 

If you don't mind losing particle effects and such, use Caderape2's method. Otherwise, you can create a Boolean, and set the Boolean to true if someone teleports with an enderpearl. Then, listen for an entity damage event, if the entity is a player, and the damage is fall damage AND the Boolean we set earlier is true, cancel the event, and set the Boolean to false again.

 

Oh, Just like yolosanta suggested, but with the if statement and Boolean?


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Yes, this would listen for when a player is about to take fall damage and cancels the action so they don't

 

@xX4w3s0m3Xx Pretty much, except I forgot that you need a hashmap containing uuids and booleans, not just one boolean, to make sure it's the same person who used the enderpearl.

 

Thank you for helping, I fixed it with another way, because the person wanted to make the player invincible for 5 seconds, so that's what I did.
Here are the events I used and what I added to them:

Code:

@EventHandler
    public void onThrow(ProjectileLaunchEvent e) {
        if (e.getEntity() instanceof EnderPearl) {
            Projectile enderPearl = e.getEntity();
            if (enderPearl.getShooter() instanceof Player) {
                Player player = (Player) enderPearl.getShooter();
                this.getServer().getScheduler().scheduleSyncDelayedTask(this, () -> {
                    Location location = enderPearl.getLocation();
                    location.add(0, 10, 0);
                    player.setNoDamageTicks(5 * 20);
                    player.teleport(location);

                }, 60L);
            }
        }
    }

    @EventHandler
    public void onTeleport(PlayerTeleportEvent e) {
        if (e.getCause() == PlayerTeleportEvent.TeleportCause.ENDER_PEARL) {
            e.setCancelled(true);
        }
    }

UPDATE:
I did it with only one eventhandler:

Code:

@EventHandler
    public void onTeleport(PlayerTeleportEvent e) {
        Player player = e.getPlayer();
        if (e.getCause() == PlayerTeleportEvent.TeleportCause.ENDER_PEARL) {
            this.getServer().getScheduler().scheduleSyncDelayedTask(this, () -> {
                Location location = e.getTo();
                location.add(0, 10, 0);
                PotionEffect invincibility = new PotionEffect(PotionEffectType.DAMAGE_RESISTANCE, 5 * 20, 4);
                player.addPotionEffect(invincibility);
                player.teleport(location);
            }, 3 * 20);
            e.setCancelled(true);
        }
    }