How to create still mobs?

I am currently writing a plugin which spawns mobs at specific locations. I want that the player can see where the mobs will spawn and add/remove new spawns. Therefore I need to display mobs which cant move and can't attack.

How can I achieve this? I was not able to find onEntityMove or a similar method, does such a method exists?

 

In pseudocode:

Code:

static LivingEntity[] spawnPoints;
spawnPoints[0] = World.spawnCreature(location,CreatureType);
spawnPoints[0].setTarget(spawnPoints[0]);

And in your EntityListener:

Code:

public void onEntityTarget(EntityTargetEvent event){
for (LivingEntity mob:Plugin.spawnPoints){
   if (mob.getEntityId() == event.getEntity().getEntityId())mob.setTarget(mob);
   }
}

Replace the plugin variable with a static reference to your plugin.

 

Thanks a lot!