[1.7.10] Disabling Spawning Zombies with Armor in a Biome

[RosenShock]

Now, I am using the command in my BiomeGenBase:

 

this.spawnableMonsterList.clear();

this.spawnableMonsterList.add(new BiomeGenBase.SpawnListEntry(EntityZombie.class, 100, 4, 4));

 

(side question, I know those last 3 ints are a way to determine how often they spawn but I can't find documentation on it. So which does what?)

 

Would I have to make another Entity class extending EntityZombie class and override the methods to do with Armor and weapon generation?

[RosenShock]

Is there any methods that lets me check if an entity is wearing armor?