Tool deleting after a certain time.

So what i have now is that you can get a tool out of a inventory.

Now i want it so it deletes the tool after a certain time.
Can somebody help me with this?
Tell me if you need my code

Thx

 

MinecraftMart
Schedule a delayed task for x amount (in ticks) of time to execute deleting the tool.

 

Something like this ?

Code:java

 public void example ( final Player p, int secs ) {
@SuppressWarnings ( "deprecation" )
final ItemStack item = new ItemStack( 1, 1 ); // ItemStack( item, amount)
p.getInventory( ).addItem( item );
 
getServer( ).getScheduler( ).scheduleSyncDelayedTask( this,
new Runnable( ) {
public void run ( ) {
p.getInventory( ).removeItem( item );
}
}, secs * 20 );
}

 

mibac138
Wauw thx, but why doesnt getServer() work?

 

What do you mean ?

 

mibac138

i needed to change it to Bukkit.getServer()

 

Doesn't matter, important is that it works, yes ?

 

MinecraftMart
getServer() is an inherited method from JavaPlugin for you main class. Either pass the instance of your main class to use getServer() or use Bukkit a static cast to getServer()

 

mibac138 Gater12

K so Bukkit.getServer() aint good?

And it asks me if i want to change it to .scheduleASyncDelayedTask instead of .scheduleSyncDelayedTask

 

You don't use Bukkit in main class, but that doesn't mean that Bukkit isn't good. If you want you can change it.

 

K but whats with the scheduleAsync and the ScheduleSync
Im doing this in another class btw

 

(From bukkit wiki) Asynchronous tasks should never access any API in Bukkit

 

MinecraftMart
You can use BukkitRunnable instead

Code:java

new BukkitRunnable(){
    public void run(){
        /* Code to execute */
    }
}.runTaskLater(mainClassInstance, sec * 20);

Or have your class a BukkitRunnable and execute it.

Code:java

public class DelayTimer implements BukkitRunnable{
    public void run(){
        /* Execute code */
    }
}
 
/* When you want to run it in some other class... */
new DelayTimer().runTaskLater(mainClassInstance, sec * 20);

 

Gater12
If i use this code i get an error

Code:java

    @EventHandler
    public void onInventoryClick(InventoryClickEvent e) {
            if (!e.getInventory().getName().equalsIgnoreCase(inv.getName())) return;
            if (e.getCurrentItem().getItemMeta() == null) return;
            if (!e.getInventory().getName().equalsIgnoreCase(inv.getName())) return;
            if (e.getCurrentItem().getItemMeta() == null) return;
            if (e.getCurrentItem().getItemMeta().getDisplayName().contains("Example")) {
                    final Player p = (Player) e.getWhoClicked();
                    int Lvl = p.getLevel();
                    if(Lvl >= 20){
                        e.setCancelled(true);
                        e.getWhoClicked().setItemInHand(s);
                        p.giveExpLevels(-20);
                        e.getWhoClicked().closeInventory();
                        p.sendMessage("You used Magic Forging to create you perfect tool! But be aware, it will only last for a certain amount of time!");
 
                        new BukkitRunnable(){
                            public void run(){
                                p.getInventory( ).removeItem(s);
                            }
                        }.runTaskLater((Plugin) this, secs * 20);
                    }
                    else{
                        e.setCancelled(true);
                        p.sendMessage("Your level is too low!");
                    }
 
 
 
 
            }     
 
 
            }

 

secs is null

 

mibac138

I made it public in the class still errors

Code:java

package com.outlook.mcpkmart.testinventory;
 
import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.inventory.InventoryClickEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.plugin.Plugin;
import org.bukkit.scheduler.BukkitRunnable;
 
public class MagicForgeInventory implements Listener {
 
    private Inventory inv;
    private ItemStack s;
    public int secs;
 
 
    public MagicForgeInventory(Plugin p) {
 
            secs = 10;
            inv = Bukkit.getServer().createInventory(null, 18, "Magic Forge");
 
            s = new ItemStack(Material.DIAMOND_PICKAXE);
            ItemMeta im = s.getItemMeta();
            im.setDisplayName("Example");
            s.setItemMeta(im);
            s.addEnchantment(Enchantment.DIG_SPEED, 5);
 
 
            inv.setItem(0, s);
 
 
            Bukkit.getServer().getPluginManager().registerEvents(this, p);
    }
 
 
    public void show(Player p) {
            p.openInventory(inv);
    }
 
 
    @EventHandler
    public void onInventoryClick(InventoryClickEvent e) {
            secs = 10;
            if (!e.getInventory().getName().equalsIgnoreCase(inv.getName())) return;
            if (e.getCurrentItem().getItemMeta() == null) return;
            if (!e.getInventory().getName().equalsIgnoreCase(inv.getName())) return;
            if (e.getCurrentItem().getItemMeta() == null) return;
            if (e.getCurrentItem().getItemMeta().getDisplayName().contains("Example")) {
                    final Player p = (Player) e.getWhoClicked();
                    int Lvl = p.getLevel();
                    if(Lvl >= 20){
                        e.setCancelled(true);
                        e.getWhoClicked().setItemInHand(s);
                        p.giveExpLevels(-20);
                        e.getWhoClicked().closeInventory();
                        p.sendMessage("You used Magic Forging to create you perfect tool! But be aware, it will only last for a certain amount of time!");
 
                        new BukkitRunnable(){
                            public void run(){
                                p.getInventory( ).removeItem(s);
                            }
                        }.runTaskLater((Plugin) this, secs * 20);
                    }
                    else{
                        e.setCancelled(true);
                        p.sendMessage("Your level is too low!");
                    }
 
 
 
 
            }     
 
 
            }
 
    }
 

Pls? I want this done tonight xD i sort of have a deadline

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Where and what error ?

 

mibac138

Code:

[20:34:09 INFO]: MinecraftMart issued server command: /magicforge
[20:34:10 ERROR]: Could not pass event InventoryClickEvent to TestInventory v0.1
 
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:294) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j
ava:501) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:486) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        at net.minecraft.server.v1_7_R3.PlayerConnection.a(PlayerConnection.java
:1363) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        at net.minecraft.server.v1_7_R3.PacketPlayInWindowClick.a(SourceFile:32)
[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        at net.minecraft.server.v1_7_R3.PacketPlayInWindowClick.handle(SourceFil
e:10) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:157
) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        at net.minecraft.server.v1_7_R3.ServerConnection.c(SourceFile:134) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:6
67) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:2
60) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:5
58) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java
:469) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:6
28) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
Caused by: java.lang.ClassCastException: com.outlook.mcpkmart.testinventory.Magi
cForgeInventory cannot be cast to org.bukkit.plugin.Plugin
        at com.outlook.mcpkmart.testinventory.MagicForgeInventory.onInventoryCli
ck(MagicForgeInventory.java:68) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0
_05]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0
_05]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1
.8.0_05]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_05]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:292) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-59-g6efeddf-b3074jnks]
        ... 13 more
>

 

Add private variable

Code:java

private <Your main class name goes here> plugin;

and in your constructor add somewhere

Code:java

this.plugin = p;

and change in your line 68

Code:java

runTaskLater((Plugin) this, secs * 20)
// To
runTaskLater(plugin, secs * 20)

 

mibac138

its working!
I had to do this

Code:java

this.plugin = (TestInventory) p;

But thx!