Check if players are in area?

Hello,

I am trying to create a kind of bow spleef but i've got a problem.
I want to know how many people are on the field and i want to give stuff to the people on my field.
I've made a field generator of tnt so you can walk on tnt like:

Code:java

public void makeArena() {
        Location start = new Location(Bukkit.getWorld("pretpark"), 1547, 4, 604);
        Location end = new Location(Bukkit.getWorld("pretpark"), 1527, 4, 570);
 
        int aX = Math.max(start.getBlockX(), end.getBlockX());
        int bX = Math.min(start.getBlockX(), end.getBlockX());
 
        int aZ = Math.max(start.getBlockZ(), end.getBlockZ());
        int bZ = Math.min(start.getBlockZ(), end.getBlockZ());
 
        for(int x = bX; x <= aX; x++) {
            for(int z = bZ; z <= aZ; z++) {
                Block block = start.getWorld().getBlockAt(x, start.getBlockY(), z);
                block.setType(Material.TNT);
            }
        }
    }

But how can i check how many players are on the field and how can i give them stuff???

 

SynteX
For checking if there in that location try using "getLocation().equals(YourLocationNameHere)"