closest entity

what is the best way to get the closest player from a entity?

 

Get the location from all the players and the entity, get the distance between the two locations, compare them and get the lowest from the distances.

 

TheMcScavenger
could you tell me how to do that?

 

Code:

public void test(){
    World world = Bukkit.getWorld("world");
    Entity entity = world.spawnEntity(new Location(world, 1, 1, 1), EntityType.ARROW);
    Location entityLocation = entity.getLocation();
   
    HashMap<Player, Double> distances = new HashMap<Player, Double>();
    for(Player p : Bukkit.getOnlinePlayers()){
        Location location = p.getLocation();
        double distance = location.distance(entityLocation);
        distances.put(p, distance);
    }
}

Just go through the hashmap, compare the distances, get the lowest, and get the player that one belongs to.

 

TheMcScavenger

Don't spoonfeed

 

I'm not, really...

 

TheMcScavenger

I bet you that Hendrik_the_best will ask what does that mean

 

ZodiacTheories That's his problem IMO

 

Hendrik_the_best There is another method, do it like this:

Code:java

 
//the double values are defining the search radius, you could do a loop and increase it til a player gets found
List<Entity> nearbyEnts = etity.getNearbyEntities(20.0D, 20.0D, 20.0D);
if (nearbyEnts != null) {
    for (Entity forEnt : nearbyEnts) {
        if (forEnt.getType() == EntityType.PLAYER) {
            //Do stuff and get the first List element
        }
    }
}

 

Badeye
TheMcScavenger
my problem is to get the entity /player that is the CLOSEST to the entity how could i get that out of a hashMap or a List?

 

Hendrik_the_best take the first list element.

 

As far as I'm aware, my code would work perfect fine. All you have to do is loop through the distances and get which of them is the lowest. I'm sure googling it isn't too much work for you, considering I already wrote 90% of your code for you.

Code:

public void test(){
    World world = Bukkit.getWorld("world");
    Entity entity = world.spawnEntity(new Location(world, 1, 1, 1), EntityType.ARROW);
    Location entityLocation = entity.getLocation();
 
    HashMap<Player, Double> distances = new HashMap<Player, Double>();
    for(Player p : Bukkit.getOnlinePlayers()){
        Location location = p.getLocation();
        double distance = location.distance(entityLocation);
        distances.put(p, distance);
    }
 
    // Compare distances & find lowest
}

 

TheMcScavenger
like i said i need help with how to get the closest player but how would i do that?
I know how to store the players in a hashmap ect but how could i make it say the closest player.
I hope you understend me.
thanks.

 

"I know how to store the players in a hashmap etc": Of course you do, I wrote the entire code for that. All you had to do is read it.
"how could i make it say the closest player": I already told you, you have to compare all the distances that are being put into the hash map, and get the lowest from that. That's plain old Java, GOOGLE IT. I'm not going write all of your code, I wrote 90% of it, all you have to do, is google and finish it. If you can't google, you will never learn to code.