Is there a way to detect if there any mobs of a certain type near a location?

I need to check if there are any mobs of the same type within say... 100 blocks of where a mob is spawning, how can I do this?

 

Code:java

@EventHandler
public void monsterSpawn(CreatureSpawnEvent event){
Entity entity = event.getEntity();
Location monLoc = event.getLocation();
 
final Collection<Entity> entities = entity.getWorld().getEntities();
final double monLocX = monLoc.getX();
final double monLocZ = monLoc.getZ();
final double monLocY = monLoc.getY();
final int radiusX = 50;
final int radiusZ = 50;
final int radiusY = 4;
 
for(final Entity ent : entities){
if(ent instanceof Monster){ //or you could do LivingEntity if it's for any mob..
Location loc = ent.getLocation();
if(((monLocX + radiusX) > loc.getX() && loc.getX() > (monLocX - radiusX)) && ((monLocZ + radiusZ) > loc.getZ() && loc.getZ() > (monLocZ - radiusZ)) && ((monLocY + radiusY) > loc.getY() && loc.getY() > (monLocY - radiusY))){
//do something
}
}
}
}

 

Oh cheers mate, big help I'll test it out once I get back from my programming exam at college >.>​

 

@suckycomedianYou know about getNearbyEntities() ? You can shorten your code by using it instead of checking all entities in the world.

Code:java

public void monsterSpawn(CreatureSpawnEvent event){
    for(Entity ent: event.getEntity().getNearbyEntities(50.0D, 4.0D, 50.0D)){
        if(ent instanceof Monster){ //or you could do LivingEntity if it's for any mob..
            //do something
        }
    }
}

 

Yeah, but I copied and pasted (with some changes) this from a teleport plugin I made that stops you from teleporting to a location if there are monsters within a certain amount of blocks fromm the destination and getNearbyEntities wouldn't work right for that. Idk if it will for what he's doing. It might since I had to do that to make sure to check the destination.. Idk