[Tutorial] Creating a throwable Grenade

Hey guys,
today I'll be showing you how to create a throwable grenade. So enough talking let's start.

Create a throwable Grenade

We only need an EventHandler for a grenade, which Needs to be the PlayerInteractEvent.

Code (Text):

@EventHandler
public void onPlayerInteract(PlayerInteractEvent e) {

Then we Need to define a Player.

Code (Text):

Player p = e.getPlayer();

Lets start checking some things which have to be true to throw a grenade.

Code (Text):

if(e.getAction() == Action.RIGHT_CLICK_BLOCK) {
    if(e.getMaterial() == Material.STONE_PLATE) { //Note this can be anything you want. I just used STONE_PLATE for my exaple.
    }
}

After this we come to the part where we remove one Grenade from the players Inventory.

Code (Text):

p.getItemInHand().setAmount(p.getItemInHand().getAmount() - 1);

Now we come to the part where the Grenade get throwed.

Code (Text):

final Item grenade = p.getWorld().dropItem(p.getEyeLocation(), new ItemStack(Material.STONE_PLATE));

grenade.setVelocity(p.getLocation().getDirection().multiply(0.8D));

And now the last part is creating the Explosion.

Code (Text):

Bukkit.getScheduler().scheduleSyncDelayedTask(<yourMainClass>, new Runnable() {
    @Override
    public void run() {
        grenade.getWorld().createExplosion(grenade.getLocation().getX, grenade.getLocation().getY, grenade.getLocation().getZ, 3, false, false);
    }
}, 20*3);

So the complete EventHandler will look like this

Code (Text):

@EventHandler
public void onPlayerInteract(PlayerInteractEvent e) {
    Player p = e.getPlayer();
    if(e.getAction() == Action.RIGHT_CLICK_BLOCK) {
        if(e.getMaterial() == Material.STONE_PLATE) {
            p.getItemInHand().setAmount(p.getItemInHand().getAmount() - 1);
       
           final Item grenade = p.getWorld().dropItem(p.getEyeLocation(), new ItemStack(Material.STONE_PLATE));
           grenade.setVelocity(p.getLocation().getDirection().multiply(0.8D));
       
            Bukkit.getScheduler().scheduleSyncDelayedTask(<yourMainClass>, new Runnable() {
                @Override
                public void run() {
                    grenade.getWorld().createExplosion(grenade.getLocation().getX, grenade.getLocation().getY, grenade.getLocation().getZ, 3, false, false);
                }
            }, 20*3);
        }
    }
}