Timer help

Hi, I am wondering how you would make configurable timers, like lets say theres a countdown for a lobby, and in the config, the value is set to 120, so the countdown would be 2 minutes, because 120 is equal to seconds. I also want to know how you would send Messages to players, based on how many seconds have passed. So, if the counter is 4 minutes, it wouldn't say the 5 minute mark, but if it was 1 minute, it would show the 1 minute, 45 second, 30 second, 15 second, and 10-1 second count.

 

The answer to all of these things is the BukkitRunnable class.

 

I kind of need a little more info than that..

 

SeanyJo
Okay then, here's some example code.

Code:java

 
//Untested, may not compile
public class MyRunnable extends BukkitRunnable {
 
    //Override the Runnable class's run method
    @Override
    public void run() {
        Bukkit.broadcastMessage("derp");
    }
}
 
//Somewhere in your code:
new MyRunnable().runTaskTimer(plugin, 0, 20);
 

The above will broadcast the message "derp" every second (delay of 20 ticks = 1 second). Really simple, right? And since the MyRunnable class I created there is just a regular instantiated class like any other, creating a countdown is as easy as giving it an integer variable and setting it when you create it:

Code:java

 
//Untested, may not compile
public class MyRunnable extends BukkitRunnable {
 
    public int count = 0;
 
    //Override the Runnable class's run method
    @Override
    public void run() {
        Bukkit.broadcastMessage(--count);
    }
}
 
//Somewhere in your code:
MyRunnable timer = new MyRunnable();
timer.count = 120;
timer.runTaskTimer(plugin, 0, 20);
 

That will make it broadcast 120, 119, 118 etc. every second.

Does that make it any clearer how to do what you wanted?

 

I want it so that if it doesn't broadcast is every second, only the major times, like 5 mins, 4 mins, 3 mins, 2 mins, 1 min, 45 secs, 30 secs, 15 secs, 10-1 secs, 0 secs.

 

SeanyJo
You would do that simply by changing the code in run(). Check what the count is at, and broadcast only if it's at a number you want. Maybe use a switch statement if you're feeling adventurous.

 

Here's what I have, broadcastMessage wasn't compatible with the int, so I had to change a few things.

Code:java

public class Test extends BukkitRunnable {
private void tellPlayersInMap(int i) {
}
 
public int count = 0;
@Override
public void run() {
tellPlayersInMap(--count);
}
 
Test timer = new Test();
timer.count = 120;
timer.runTaskTimer(plugin, 0, 20);
}

I get errors with lines 12 and 13, saying that I should remove the '(' on line 13, and I should replace it with a ConstructorHeadername instead. For line 12, it says that I should add a VariableDeclaratorId after the 'count'. When I add something, it says that timer can't be resolved.

 

http://forums.bukkit.org/threads/tutorial-how-to-create-a-scoreboard-countdown.175234/

 

PatoTheBest adam753
Heres the newer version of my code, though I have some problems:

Code:java

    public void startLobbyCountdown() {
 
    int lobbycountdown = plugin.getconfigfile().getInt("Countdown_Config.Lobby.Time-In-Seconds");
        {
            Bukkit.getServer().getScheduler().scheduleSyncRepeatingTask(plugin, new Runnable() {
                public void run() {
                lobbycountdown --;
                }
            }
            , 0L, 20L);
        }
    }
}

It says:

Cannot refer to a non-final variable lobbycountdown inside an inner class defined in a different method.
This is for line 7. I also have a warning for the int lobbycountdown line, but that's because it hasn't been utilized yet.

 

Try the code linked in my signature

 

WauloK read my post above....

 

WauloK PatoTheBest
Thanks Waulo, but I have a new problem, one that wasn't in your code. I want to replace %m with MinutesToCountdown, but it says that it's inapplicable for the type. heres the code I have:

Code:java

    public Runnable startMinutesCountdown() {
        MinutesToCountdown = plugin.getServer().getScheduler().scheduleSyncRepeatingTask(plugin, new Runnable() {
                  public void run() {
                          MinutesToCountdown--;
                          if (MinutesToCountdown!=0) {
                                  Bukkit.broadcastMessage(plugin.getmessagesfile().getInt("Messages.LobbyCount.Minutes").replace("%m", MinutesToCountdown));
                          }
                          if (MinutesToCountdown==0) {
                              plugin.getServer().getScheduler().cancelTask(MinutesToCountdown);
                              startSecondsCountdown(); //I will implement this later on
                          }
 
                  }
                }, 20*60L, 20*60L); // 60 seconds in a minute
        return null;
    }
}

 

What is Messages.LobbyCount.Minutes set to? Looks like you are getting an Integer and trying to use a string replace method?

 

Minutes: '&aThe game is starting in %m minutes!'
I replaced the getInt with getString, but now it says that:

The method replace(char, char) in the type String is not applicable for the arguments (String, int)

 

Try casting MinutesToCountdown to string with

Code:java

(String) MinutesToCountdown

My Java is a little rusty at the moment so I hope it works

 

Where would I put it? Wherever I think it would go, it's giving me errors.

 

Could you please repost all your new code?

 

sure, here it is:

Code:java

package me.SeanyJo.tigregames.events;
 
import me.SeanyJo.tigregames.TigreGames;
 
import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.entity.Player;
 
public class LobbyCountdown {
    public static TigreGames plugin;
    public static int MinutesToCountdown=plugin.getconfigfile().getInt("Countdown_Config.Lobby.Time-In-Minutes");
    public static int SecondsToCountdown=plugin.getconfigfile().getInt("Countdown_Config.Lobby.Time-In-Seconds");
    public static void tellPlayersInMap(String message) {
        for (String playerName : TigreGames.lobby.keySet()) {
        Player player = Bukkit.getPlayerExact(playerName);
        if (player != null) {
        player.sendMessage(message);
        }
        }
        }
    public static void teleportPlayersInMap(Location location) {
        for (String playerName : TigreGames.lobby.keySet()) {
            Player player = Bukkit.getPlayerExact(playerName);
            if (player !=null) {
                player.teleport(location);
            }
        }
    }
    public Runnable startMinutesCountdown() {
        MinutesToCountdown = plugin.getServer().getScheduler().scheduleSyncRepeatingTask(plugin, new Runnable() {
                  public void run() {
                          MinutesToCountdown--;
                          if (MinutesToCountdown!=0) {
                                  Bukkit.broadcastMessage(plugin.getmessagesfile().getString("Messages.LobbyCount.Minutes").replace("%m", MinutesToCountdown));
                          }
                          if (MinutesToCountdown==0) {
                              plugin.getServer().getScheduler().cancelTask(MinutesToCountdown);
                              startSecondsCountdown();
                          }
 
                  }
                }, 20*60L, 20*60L);
        return null;
    }
}

 

Code:java

 Bukkit.broadcastMessage(plugin.getmessagesfile().getString("Messages.LobbyCount.Minutes").replace("%m", Integer.toString(MinutesToCountdown)));

 

ok, the errors went away Thanks!

WauloK
Now this error is popping up on Enabling:
It's an ExceptionInitializerError, and it worked before, but I think it;s messed up due to the new code. Heres what I'm using:

Code:java

LobbyCountdown.plugin = this;

In the LobbyCountdown class, I have this code:

Code:java

public static TigreGames plugin;

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

 

If you make some changes, it's best to post the full code each time.. even if it's a link to pastebin as the context really helps.

 

Main class: http://pastie.org/8400627
Countdown Class: http://pastie.org/8400626

 

I've never seen this done before, but I'm relatively new to Bukkit programming:

Code:java

        Command_HG.plugin = this;
        LobbyCountdown.plugin = this;
        PlayerQuit.plugin = this;
        GlobalChatColor.plugin = this;
        InvincibilityCountdown.plugin = this;
        Invincible.plugin = this;
        GameCountdown.plugin = this;

Is this line causing the error?

Code:java

LobbyCountdown.plugin = this;

 

That's the line it says. There is a NullPointerException on line 11 of the Countdown class, which is probably for plugin, because it isn't initializing. Is there another way to initialize a class/plugin? Heres the stacktrace if you need it:
http://pastie.org/8400647

 

I've never had this problem before. It seems there's an issue with your static declaration in the Countdown code.

Not sure. Try commenting out all the *.plugin = this;
Or perhaps not declaring the variables as static in the Countdown class?

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

 

I can't really figure it out, I mean, it worked before, but I don't know what messed it up right now..

 

Could you zip up the code somewhere?

 

Like.. put it in a zip file and upload it to mediafire? Like that, or..

 

Yup

 

Ok, here it is:
Click here for .zip file. Put this in your workspace (after unzipping)