Exp Level Countdown

Hi,
I am relatively new to Bukkit development. I am trying to add a exp level countdown to one of my plugins, but I can't figure out how to do it! I need the bar to start when I call the function, and when it ends it needs to run another bit of code. I have been searching Google / docs and experimenting with various code snippets for about 2 hours, but have not found anything. Help would b greatly appreciated.
Thank you!

 

x128
Use the scheduler to subtract exp from the player

 

xTrollxDudex
I know that - but I can't figure out how to do the scheduler

 

x128

Code:java

        Bukkit.getScheduler().scheduleAsyncRepeatingTask(YOURMAINCLASS, new Runnable(){
            public void run(){
                int countdown = 20;
                for(Player p : Bukkit.getOnlinePlayers()){
                    p.setLevel(countdown);
                }
                countdown--;
            }
        }, 0L, 20);

 

@Woodenplanks320 Async task? I think you should never access the Bukkit API from a async task.

 

Seadragon91 on my plugin the countdown works

 

Read here.

 

I changed "YOURMAINCLASS" with mine; "First" however it didn't like it..
It suggested I change it to "plugin"

I have this at the top of my code

Code:java

public static First plugin; 

however it throws an error when using "plugin"

Any help would be awesome as I have no yet discovered how to use this and the potential behind it is amazing.

 

Seadragon91 okay i changed it

if you scheduler is in your main class you can use "this"

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

 

Code:java

 Bukkit.getScheduler().scheduleAsyncRepeatingTask(this, new Runnable(){
public void run(){
int countdown = 20;
for(Player p : Bukkit.getOnlinePlayers()){
p.setLevel(countdown);
p.sendMessage(ChatColor.GREEN + "This is a basic test loop! " + countdown);
}
countdown--;
}
}, 0L, 20);
 
 
 
}

Code:java

 Bukkit.getScheduler().scheduleAsyncRepeatingTask(this, new Runnable(){
int countdown = 20;
public void run(){
 
for(Player p : Bukkit.getOnlinePlayers()){
p.setLevel(countdown);
p.sendMessage(ChatColor.GREEN + "This is a basic test loop! " + countdown);
}
countdown--;
}
}, 0L, 20);
 
 
 
}

The loop is working! (thanks!) but countdown--; isn't working.. any clue why?


edit: (see second block of code) fixed!

 

AndyMcB1
You will have a problem canceling this.

Code:java

BukkitRunnable task = new BukkitRunnable() {
int countdown = 20;
@Overwrite
public void run(){
for(Player p : Bukkit.getOnlinePlayers()){
p.setLevel(countdown);
p.sendMessage(ChatColor.GREEN + "This is a basic test loop! " + countdown);
}
countdown--;
if (countdown < 0) {
this.cancel();
}
}
};
task.runTaskTimer(this, 0L, 20L);

 

Won't it auto cancel once "countdown" is less than 0?

 

AndyMcB1
No, why should it do that? Nothing tells the task to stop if some value of countdown is reached. Maybe setLevel(-1) throws an error, so the task is broken and is 'canceled', but you should not program this way.

 

oh right, I meant this though -

Code:java

if (countdown < 0) {
this.cancel();
}

 

AndyMcB1
Oh, if you mean my comment at the beginning of my post, that was related to the code shown before. My code of course should not have this problem ^^

 

hah. thought so. Still getting used to "this.x" hard concept to grab for me.

Anyway, I'm off to bed. Thanks a ton for the help. I really appreciate it.

-Andy

 

Is there a way to subtract a certain amount off of it instead of 1 like 25?