Waiting X time before executing command

I have a plugin which needs to delay the time before using a command. So once you use the command you have to wait X amount of time before you can use it again. But I also need it to tell the player how long is left before they can execute this command again.

So my question is, how do I put this delay on the command?

 

try this

Code:

        getServer().getScheduler().scheduleSyncDelayedTask(this, new Runnable() {
            @Override
            public void run() {
                do your stuff here
            }
        }, delay);

don't rely on local vars being usable
in fact its best to use this in a new class if its dependent on being passed parameters

 

Doesn't this make you wait X amount of time before anything happens? So if set to 10 seconds I would have to use /command then wait 10 seconds before the command took effect?

 

What you're asking for is also known as a 'cooldown'.

To implement this, you'll need a Map<String,Long>, which records the last time a player used your command (use the player's name as the Map key). Then, every time your command is executed, check the player's last-execution time against the current time (System.currentTimeMillis() is your friend here). If the difference is too small, the cooldown hasn't expired yet, so send the player an error message and stop there. If the difference is big enough, then proceed with command execution, also remembering to update the last-executed time for the player in your Map.

 

Could you show me an example implementation of this? I am not asking for the whole code, just how it needs to be set-out to work correctly.

 

This should be somewhere soon in the code

Code:java

public Map<String, Long> cooldown = new HashMap<String, Long>();

Then this for checking:

Code:java

Long time = cooldown.get(player.getName());
// Checks if the player has actually performed the command and if he did, if the last time was 10 seconds ago
if(time == null || time - System.currentTimeMillis() >= (10*1000))
{
    // do whatever command
    cooldown.put(player.getName(), System.currentTimeMillis()); // Set current time
}
else
{
    // before you ask:
    int remains = (int)Math.floor(10 - System.currentTimeMillis());
    player.sendMessage("You would have to wait "+remains+" second(s) before you can execute this command again");
}

Note that this cooldown works on ALL commands in this plugin. If you want a cooldown per command per player, I would suggest to make a class to record the times per command

 

fireblast709 Thanks for the help, that's all I needed.


EDIT:
After messing around a bit I found that this failed to work...
The time is in - and does not change after waiting, so I don't know what to do about it

 

Could you post the code segment in question? The time set in the map shouldn't change, as it simply logs when the command was sent. You check if the time has elapsed by comparing the map.get(player) with the system.CurrentTimeMillis(), which should always be changing. Fireblast's solution should absolutely work, and you'd change the 10's in the code to variables for however long you want the cooldown to be.