Stop mob/NPC from moving

I want to be able to stop every npc's movement, except maybe yaw, pitch. How can I accomplish this with as clean code as possible, since there is no EntityMoveEvent (Bukkit should add one ?).
That's it, just want to keep them in place, not be able to move, I believe Citizens can do this, but can't find it in source code.

 

Create a new entity for each mob, and then have it throw a unique MoveEvent for every time it tries to move.

This thread should help you a lot.

 

Anyone else maybe ?
Basically I have list of mob IDs, possibly in DIFFRENT worlds (multiverse etc.) and I want to stop their movement.
It could be done with for loops and Async repeating tasks, but it would cause lag, checking and comparing 30k+ ids, then setting their position, it wouldn't be smooth at all.

 

Correction, you should use Sync repeating tasks, because async repeating tasks cannot access bukkit methods.

 

I access bukkit methods in my asyncrepeatingtask with no issue. Of course it's just stuff like getConfig so there shouldn't be a huge issue. I haven't noticed any errors so far.

I've done something like this in MCPets.
You realize that in a custom mob class, if you don't have the entity actually move if the MoveEvent is cancelled, that's the solution to your issue?

Let's say you've got a list of UniqueIds.

You could do something like this:

Code:

@EventHandler
public void stopFrozenMobs(MobMoveEvent event){
List<UUID>frozenMobs; //declare it as actually equal to whatever your list is in your code
Entity e = event.getEntity();
if (frozenMobs.contains(e.getUniqueId())){
event.setCancelled(true);
return;
}else{
return;
}
}

 

Is there something like MobMoveEvent ? Didn't check ...

 

There is not one included in Bukkit, but you can create your own custom mobs which throw this event every time they are about to move. Everything as detailed in:

But I guess you didn't read that.

 

I didn't really read it all, but I will, thanks anyway !
Will report back later how it goes ... I'm storing Unique IDs and some other values in MultiMap by Google, didn't really find a way to store multiple values per key, is there on already in Java ?

 

Er, not that I know of.
I found that for MCPets I had to store a lot of values in hashmaps; I eventually gave up everything to do with hashmaps and had it write pet data (owner name, pet name, sitting, sittingLocation) to a Pets.yml file.

 

Anyway, this is what I was talking about:
http://code.google.com/p/guava-libraries/

Usage:
http://tomjefferys.blogspot.com/2011/09/multimaps-google-guava.html


Gonna play a few games of Battlefield and than try controlling NPC

I don't quite understand, since it's changing actual behaviour.

I extend EntityZombie, but when it comes to

Code:

ZombieMoveEvent event = new ZombieMoveEvent(zombie, from, to);

It errors.
"Cannot resolve symbol ZombieMoveEvent", Because it obviously doesn't exist...

Also it cannot resolve

Code:

super.s_();

Anything, anyone ?

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

 

I just tried the same and received an answer from md_5 telling me I need to reflect the EntityMonster and EntityAnimal classes and wipe out all the AI-Features.

 

That was an old post, the move method is now "F_" not "s_"

 

Okay, I will try that later, doing some other plugin atm.