I was wondering if there was a function similar to world.getClosestPlayer. I need it something I can iterate through with a for loop. I'm basically trying to heal any player close but hurt any hostile mob close.

There isn't an analogous function, no, but you can use World#getEntitiesWithinAABB to get nearby entities, then iterate through that list to see which is closes (see World#getClosestPlayer if you need an example of that).

getEntitiesWithinAABB has a Class parameter and AxisAlignedBB parameter. I have no idea how to use that

The Class is the is class of entity you want to retrieve and the AxisAlignedBB (axis aligned bounding box) is the region from which you want to retrieve entities.

So i've tried this:

 

		for(CoordEntry entry: connectedNodes)
	{
		double bnX = baseNodePos.getX();
		double bnY = baseNodePos.getY();
		double bnZ = baseNodePos.getZ();
		double eX = entry.getPos().getX();
		double eY = entry.getPos().getY();
		double eZ = entry.getPos().getZ();

		List entities = this.worldObj.getEntitiesWithinAABB(EntityLivingBase.class, new AxisAlignedBB(eX, eY, eZ, bnX, bnY, bnZ));
		if(player != null) player.addChatMessage(new ChatComponentText("Entities: " + entities.size()));
	}

 

but my chat message always says "Entities: 0" even when I'm in range. Fyi the baseNode position and entry position are on the same X axis but have different Z coordinates

 

is there a better way to debug the bounding box that this.worldObj.getEntitiesWithinAABB creates? I think that would help solve my problem

is there a better way to debug the bounding box that this.worldObj.getEntitiesWithinAABB creates? I think that would help solve my problem

 

I usually put in console or logger statements such as System.out.println() and print out useful info. In this case you could print out the bounds of the bounding box and see it if makes sense considering where it is supposed to be in the world you're playing in.

The arguments for AxisAlignedBB are MINIMUM x/y/z followed by MAXIMUM x/y/z; are you absolutely certain that the baseNodePos x/y/z will always be less than the connected node entry's x/y/z? That doesn't seem very likely to me...

                    for (EntityLivingBase e:world.getEntities(EntityLivingBase.class, new Predicate<EntityLivingBase>() {

                        @Override
                        public boolean apply(EntityLivingBase input) {
                            return (input.getDistanceToEntity(player) <= DISTANCE);
                        }
                    })) {
                        // Do stuff
                    }

 

It's not super clean or elegant, but it does work.

Just make sure you get the right imports.