public int countLoweredRods() {
   int count = 0;
   for (WorldLocation c : controls.keySet()) {
     TileEntityControlRod rod = controls.get(c);
     if (rod.isActive()) count++;
   }
   return count;
 }
 @SideOnly(Side.CLIENT)
 public int getDisplayColorAtRelativePosition(World world, int x, int y, int z) {
   TileEntityControlRod rod = this.getControlRodAtRelativePosition(world, x, y, z);
   if (rod != null) {
     if (((TileEntityCPU) controller.getTileEntity()).getPower() >= this.getMinPower())
       return rod.isActive() ? 0x00ff00 : 0xff0000;
     else return 0xa0a0a0;
   }
   return 0x6a6a6a;
 }