controller emits a comparator signal now

src/main/java/storagecraft/block/BlockController.java

@@ -45,6 +45,20 @@ public class BlockController extends BlockBase implements ITileEntityProvider
 		super.onBlockPreDestroy(world, x, y, z, meta);
 	}
 
+	@Override
+	public boolean hasComparatorInputOverride()
+	{
+		return true;
+	}
+
+	@Override
+	public int getComparatorInputOverride(World world, int x, int y, int z, int side)
+	{
+		TileController tile = (TileController) world.getTileEntity(x, y, z);
+
+		return tile.getEnergyScaled(15);
+	}
+
 	@Override
 	public void registerBlockIcons(IIconRegister register)
 	{
@@ -63,7 +77,7 @@ public class BlockController extends BlockBase implements ITileEntityProvider
 
 		if (side == tile.getDirection().ordinal())
 		{
-			return icons[(int) ((float) tile.getEnergyStored(null) / (float) tile.getMaxEnergyStored(null) * 8f)];
+			return icons[tile.getEnergyScaled(8)];
 		}
 
 		return sideIcon;

src/main/java/storagecraft/tile/TileController.java

@@ -10,6 +10,7 @@ import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.Vec3;
 import net.minecraftforge.common.util.ForgeDirection;
+import storagecraft.StorageCraftBlocks;
 import storagecraft.storage.IStorage;
 import storagecraft.storage.IStorageProvider;
 import storagecraft.storage.StorageItem;
@@ -43,6 +44,8 @@ public class TileController extends TileBase implements IEnergyReceiver, INetwor
 
 		if (!worldObj.isRemote)
 		{
+			int lastEnergy = energy.getEnergyStored();
+
 			if (ticks % 40 == 0)
 			{
 				if (!isActive())
@@ -110,10 +113,12 @@ public class TileController extends TileBase implements IEnergyReceiver, INetwor
 			}
 
 			energy.extractEnergy(energyUsage, false);
-		}
-		else
+
+			if (lastEnergy != energy.getEnergyStored())
 			{
 				worldObj.markBlockForUpdate(xCoord, yCoord, zCoord);
+				worldObj.notifyBlocksOfNeighborChange(xCoord, yCoord, zCoord, StorageCraftBlocks.CONTROLLER);
+			}
 		}
 	}
 
@@ -299,6 +304,11 @@ public class TileController extends TileBase implements IEnergyReceiver, INetwor
 		return energy.getEnergyStored();
 	}
 
+	public int getEnergyScaled(int i)
+	{
+		return (int) ((float) energy.getEnergyStored() / (float) energy.getMaxEnergyStored() * (float) i);
+	}
+
 	@Override
 	public int getMaxEnergyStored(ForgeDirection from)
 	{