Help on Getting If a Player is in a WorldGuard region

Ok so I'm creating a plugin that will use worldguard regions as a "channel" what i want it to do is whenever a player gets within a certain distance say 10 blocks from the region they join the "channel" and considering I am a complete noob I have no idea on how to determine how far they are away from the region or let alone let them chat in that region.

 

In a PlayerChatEvent, get all players online, iterate through the all the online players, checking if each one is in the same worldguard region as chatting player (I'm assuming WorldGuard has a method to check if a player is in a region), and send the message to only players who are in the same region as the chatting player.

edit: noticed you want a given distance from region, find the midpoint of the region, get half the x and z from the region, add those x and z values to the midpoint to find one corner, and subtract them to find the other corner, add givenDistance to the x and z off the corner you added to, and subtract them from the corner you subtracted them from, iterate through online players, if their x is between the two x values of those points, and their z is between the two z alues, send the message to them.

 

As for distance from the region, you can do firstlocation.distance(secondlocation) to get the distance between the 2 points. Hope this gets you started in the right direction

 

Thanks for the quick replies I'll see what i can do

OK i got it to check and see if they are in a region but im not sure how to take that info and then send the chat to every body in the region

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

 

This might gum up other chat plugins, but you could cancel the chat event and loop through all the players in the region, sending the player's message to each other player individually

Code:java

Player.sendMessage("<" + event.getPlayer().getName() + "> " + event.getMessage);

(put that in a PlayerChatEvent)

 

• You would need to use AsyncPlayerChatEvent (PlayerChatEvent is depreciated)
• Mind thread-safety. player.sendMessage("something") is not thread-safe (afaik)

 

Or just e.getFormat() then use that format then send the players a message, that always works too!

 

Guys Im trying to test and see if it can find people in the region and i get this error

Code:

Caused by: java.lang.NullPointerException
    at com.github.pacothegint.pacochatlistener.isPlayerInRegion(pacochatlistener.java:32)
    at com.github.pacothegint.pacochatlistener.onPlayerInteractEntity(pacochatlistener.java:22)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
    ... 14 more

I narrowed it down to this code in my Listener

Code:

if (plugin.worldGuard != null)
//For the first
if (isPlayerInRegion((Player) event.getRightClicked()))
//for the second

I have worldguard/edit in my plugins folder so im not sure whats happening

 

pacochatlistener.java, line 32. Method: isPlayerInRegion(). Can you get that snippet for me please :3

 

I think this it

Code:

private boolean isPlayerInRegion(Player player) {
            // Make sure that a WorldGuard instance was found
            if (plugin.worldGuard != null) {
                // Get the players position (as a WorldEdit Vector)
                Vector playerVector = new Vector(player.getLocation().getX(), player.getLocation().getY(), player.getLocation().getZ());     
             
                // Get WorldGuards Region Manager
                RegionManager rm = plugin.worldGuard.getRegionManager(player.getWorld());
             
                // Make sure a RegionManager was found
                if (rm != null)    {
                    if (rm.getApplicableRegions(playerVector).size() > 0) return true;
                }
            }

 

Now, I still don't know what line 32 is, but these are some possible sources of the error:

• plugin is null
• player is null

 

In pacochatplayerlistener line 32 is if (plugin.worldGuard != null) {
but let me check real quick

 

if so then plugin is null

 

OK ill see if i can find out why

I havent found it yet if you want to try i can give you the github url

EDIT: Like i know what line is causing the error but i cant figure out why

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

 

you need to define plugin somewhere in your class. Usually, you do that with the constructor

Code:java

public <main class> plugin;
public <classname>(<main class> plugin)
{
    this.plugin = plugin;
}

And you create an object like

Code:java

new <classname>(<main class instance>);
// Use the following line to create it in the main class
new <classname>(this);

Just replace the <classname> with your class and <main class> with your main class

 

OK now it doesn't give me a error but it doesn't find if they are in a region

 

recheck your logic ;3

 

GAHH All it does is tells me that they arent in a region even if im in a region

So apparently this code

Code:

private boolean isPlayerInRegion(Player player) {
        // Make sure that a WorldGuard instance was found
        if (plugin.worldGuard != null) {
            // Get the players position (as a WorldEdit Vector)
            Vector playerVector = new Vector(player.getLocation().getX(), player.getLocation().getY(), player.getLocation().getZ());     
 
            // Get WorldGuards Region Manager
            RegionManager rm = plugin.worldGuard.getRegionManager(player.getWorld());
 
            // Make sure a RegionManager was found
            if (rm != null)    {
                if (rm.getApplicableRegions(playerVector).size() > 0) return true;
            }
        }
        // No region found at players position
        return false;
    }

cant tell whether they are in a region or not
OR its this code

Code:

f (event.getPlayer() instanceof Player) {
            // Tell the player if the RightClicked Player is in a region or not
            if (isPlayerInRegion((Player) event.getPlayer())) {
                event.getPlayer().sendMessage("Player is in a WorldGuard Region");
 

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

 

add debug to see what if-statements are passed

 

Ummm ? Sorry im a complete noob

 

Try putting some logging statements, or send a message to the player, like:

Code:

player.sendMessage("Entering isPlayerInRegion");

and:

Code:

player.sendMessage("plugin.worldGuard is not null");

...stuff like that, so you can see what path the code is following.

You can also BukkitUtil.toVector() to get the vector (I don't think this is your problem, but just FYI:

Code:

rm.getApplicableRegions(BukkitUtil.toVector(player.getLocation()));

My guess is that plugin.worldGuard is null. How is it being set?

 

OK so this is the new code with the messages

Code:

 private boolean isPlayerInRegion(Player player) {
            // Make sure that a WorldGuard instance was found
       
            if (plugin.worldGuard != null) {
                player.sendMessage("Entering isPlayerInRegion");
                // Get the players position (as a WorldEdit Vector)
                Vector playerVector = new Vector(player.getLocation().getX(), player.getLocation().getY(), player.getLocation().getZ()); 
         
                // Get WorldGuards Region Manager
                RegionManager rm = plugin.worldGuard.getRegionManager(player.getWorld());
                player.sendMessage("WorldGuard");
                // Make sure a RegionManager was found
                if (rm != null)    {
                    if (rm.getApplicableRegions(playerVector).size() > 0) return true;
                    player.sendMessage("REgion ");
                }
            }
            player.sendMessage("False");
            // No region found at players position
            return false;
        }

i have a github for it if you want to see it

 

which means rm.getApplicableRegions(playerVector) returns an empty list. If you are sure that you are in the region, this means playerVector would be incorrect

 

Ok i got the worldedit mod so i can be 100% sure im in the region

So you think it could be this line

Code:

Vector playerVector = new Vector(player.getLocation().getX(), player.getLocation().getY(), player.getLocation().getZ());      

 

Then your vector is ill-defined. Or it would not show some messages

 

Hmm I'm starting to think this would be easier just to be able to define my own regions

 

Pacothegint just try to use player.getLocation() instead of a vector

 

OK ill try it thanks

 

Yeah I think you should get their location first, and check if they are withing a whatever block radius of the location then put whatever you want it to do. Also, you might want to make your title a little more specific