Solved Detecting when an entity such as primed tnt hits a block

I'm making a game plugin for a server.
Its kinda like tnt spleef.
Well basically we have this plugin that launches tnt like it were a snowball, it's called grenades btw.
Anyway i tried detecting when the tnt spawned and set its fuse to 2 seconds. but the fuse seemed to stay the same :S. I tried for a while but to no avail.
So im kind of stumped because i dont have an instance of the tnt class and even when i tried making my own version of grenades so i could get an instance of it i had problems with setting velocity and stuff :S as in(i used snowballs and they were visible) lol.
I'm thinking maybe there is a way to detect when the tnt collides with a surface?
i haven't found one so im assuming there isn't one.
Can anyone help?

 

Hrm... you could track your tnt entity, and check its location, and see if it is in a block. Works well enough for things unless it is a slab or fence, etc. Although, most grenades I have seen use a thrown entity - say, a snowball, or egg. I wouldn't be surprised if there was an event for those.

http://jd.bukkit.org/rb/doxygen/d8/...1_1event_1_1entity_1_1ProjectileHitEvent.html

 

Yeah but i don't have an instance of the tnt entity.
I know that event exists but what if it deletes the snowball after it has set the velocity?

 

Why would it be deleted?

 

use the PlayerInteractEvent
check if they right click with tnt in there hand
launch primed tnt
remove 1 tnt from there inventory
make a delayed task for 2 seconds then make it explode

Heres some grenade code i made for a test plugin a while back:

Oh just pointing out this was made with another plugin that only allows slimeballs to stack upto 1 so it removes all the slime balls in the players hand

Code:java

import java.util.ArrayList;
 
import me.callum2904.rlm.Main;
 
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.entity.Item;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.entity.EntityExplodeEvent;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.event.player.PlayerPickupItemEvent;
import org.bukkit.inventory.ItemStack;
 
public class Grenade implements Listener{
//This Class Is Not Used!
 
public Main plugin;
public Grenade(Main plugin){
this.plugin = plugin;
}
ArrayList<Item> cantPickup = new ArrayList<Item>();
public static boolean blockdamage = false;
@EventHandler
public void slimeGrenade(PlayerInteractEvent event) {
final Player player = event.getPlayer();
World world = player.getWorld();
if (player.getItemInHand().getType() == Material.SLIME_BALL) {
if (event.getAction() == Action.RIGHT_CLICK_AIR || event.getAction() == Action.RIGHT_CLICK_BLOCK) {
final Item grenade = world.dropItem(player.getEyeLocation(), new ItemStack(Material.SLIME_BALL));
grenade.setVelocity(player.getEyeLocation().getDirection());
ItemStack slimeball = new ItemStack(Material.SLIME_BALL, 1);
player.getInventory().remove(slimeball);
cantPickup.add(grenade);
plugin.getServer().getScheduler().scheduleSyncDelayedTask(plugin, new Runnable() {
 
@Override
public void run() {
Grenade.blockdamage = true;
grenade.getWorld().createExplosion(grenade.getLocation(), 3F);
Grenade.blockdamage = false;
grenade.remove();
cantPickup.remove(grenade);
}
}, 40L);
}
}
}
 
@EventHandler
public void onEntityExplode(EntityExplodeEvent event)
{
if(blockdamage && event.getEntity() == null)event.blockList().clear();
}
 
@EventHandler
public void onItemPickup(PlayerPickupItemEvent event){
Item item = event.getItem();
if(cantPickup.contains(item)){
event.setCancelled(true);
}
}
}

 

Because after you have set the velocity why would you need it?

I'm so stupid.
why didnt i think of this.
thanks +1.