Aminecraftable reproduction

onUpdate

    @Override
    public void onUpdate()
    {
	tickExisted++;
	
    if(tickExisted < 6000)
    {
    	if (this.rand.nextInt(50000) == 0)
        {
            EntityBabyWalker entitybabywalker = new EntityBabyWalker(this.worldObj);
            entitybabywalker.setLocationAndAngles(this.posX, this.posY, this.posZ, this.rotationYaw, 0.0F);
            this.worldObj.spawnEntityInWorld(entitybabywalker);
        	
        }
    }
  }