Blockstates for disk drive slots

src/main/java/refinedstorage/block/BlockDiskDrive.java

@@ -1,5 +1,6 @@
 package refinedstorage.block;
 
+import net.minecraft.block.properties.PropertyBool;
 import net.minecraft.block.properties.PropertyInteger;
 import net.minecraft.block.state.BlockStateContainer;
 import net.minecraft.block.state.IBlockState;
@@ -18,6 +19,15 @@ import refinedstorage.tile.TileDiskDrive;
 public class BlockDiskDrive extends BlockNode {
     private static final PropertyInteger STORED = PropertyInteger.create("stored", 0, 7);
 
+    private static final PropertyBool FILLED_0 = PropertyBool.create("filled_0");
+    private static final PropertyBool FILLED_1 = PropertyBool.create("filled_1");
+    private static final PropertyBool FILLED_2 = PropertyBool.create("filled_2");
+    private static final PropertyBool FILLED_3 = PropertyBool.create("filled_3");
+    private static final PropertyBool FILLED_4 = PropertyBool.create("filled_4");
+    private static final PropertyBool FILLED_5 = PropertyBool.create("filled_5");
+    private static final PropertyBool FILLED_6 = PropertyBool.create("filled_6");
+    private static final PropertyBool FILLED_7 = PropertyBool.create("filled_7");
+
     public BlockDiskDrive() {
         super("disk_drive");
     }
@@ -31,13 +41,33 @@ public class BlockDiskDrive extends BlockNode {
     public BlockStateContainer createBlockState() {
         return createBlockStateBuilder()
             .add(STORED)
+            .add(FILLED_0)
+            .add(FILLED_1)
+            .add(FILLED_2)
+            .add(FILLED_3)
+            .add(FILLED_4)
+            .add(FILLED_5)
+            .add(FILLED_6)
+            .add(FILLED_7)
             .build();
     }
 
     @Override
     public IBlockState getActualState(IBlockState state, IBlockAccess world, BlockPos pos) {
-        return super.getActualState(state, world, pos)
+        TileDiskDrive diskDrive = (TileDiskDrive) world.getTileEntity(pos);
-            .withProperty(STORED, Math.max(0, ((TileDiskDrive) world.getTileEntity(pos)).getStoredForDisplay()));
+
+        state = super.getActualState(state, world, pos);
+        state = state.withProperty(STORED, Math.max(0, diskDrive.getStoredForDisplay()));
+        state = state.withProperty(FILLED_0, diskDrive.getFilled()[0]);
+        state = state.withProperty(FILLED_1, diskDrive.getFilled()[1]);
+        state = state.withProperty(FILLED_2, diskDrive.getFilled()[2]);
+        state = state.withProperty(FILLED_3, diskDrive.getFilled()[3]);
+        state = state.withProperty(FILLED_4, diskDrive.getFilled()[4]);
+        state = state.withProperty(FILLED_5, diskDrive.getFilled()[5]);
+        state = state.withProperty(FILLED_6, diskDrive.getFilled()[6]);
+        state = state.withProperty(FILLED_7, diskDrive.getFilled()[7]);
+
+        return state;
     }
 
     @Override

src/main/java/refinedstorage/tile/TileDiskDrive.java

@@ -86,6 +86,7 @@ public class TileDiskDrive extends TileNode implements IItemStorageProvider, IFl
     private static final String NBT_MODE = "Mode";
     private static final String NBT_STORED = "Stored";
     private static final String NBT_TYPE = "Type";
+    private static final String NBT_FILLED = "Filled_%d";
 
     private ItemHandlerBasic disks = new ItemHandlerBasic(8, this, IItemValidator.STORAGE_DISK) {
         @Override
@@ -99,6 +100,10 @@ public class TileDiskDrive extends TileNode implements IItemStorageProvider, IFl
                     network.getItemStorage().rebuild();
                     network.getFluidStorage().rebuild();
                 }
+
+                if (worldObj != null) {
+                    updateBlock();
+                }
             }
         }
 
@@ -128,6 +133,7 @@ public class TileDiskDrive extends TileNode implements IItemStorageProvider, IFl
     private int type = IType.ITEMS;
 
     private int stored = 0;
+    private boolean[] filled = new boolean[8];
 
     public TileDiskDrive() {
         dataManager.addWatchedParameter(PRIORITY);
@@ -263,6 +269,10 @@ public class TileDiskDrive extends TileNode implements IItemStorageProvider, IFl
 
         tag.setInteger(NBT_STORED, stored);
 
+        for (int i = 0; i < 8; ++i) {
+            tag.setBoolean(String.format(NBT_FILLED, i), disks.getStackInSlot(i) != null);
+        }
+
         return tag;
     }
 
@@ -270,9 +280,17 @@ public class TileDiskDrive extends TileNode implements IItemStorageProvider, IFl
     public void readUpdate(NBTTagCompound tag) {
         stored = tag.getInteger(NBT_STORED);
 
+        for (int i = 0; i < 8; ++i) {
+            filled[i] = tag.getBoolean(String.format(NBT_FILLED, i));
+        }
+
         super.readUpdate(tag);
     }
 
+    public boolean[] getFilled() {
+        return filled;
+    }
+
     @Override
     public int getCompare() {
         return compare;

src/main/resources/assets/refinedstorage/blockstates/disk_drive.json

@@ -14,6 +14,54 @@
         "y": 0
       }
     ],
+    "filled_0": {
+      "true": {
+      },
+      "false": {
+      }
+    },
+    "filled_1": {
+      "true": {
+      },
+      "false": {
+      }
+    },
+    "filled_2": {
+      "true": {
+      },
+      "false": {
+      }
+    },
+    "filled_3": {
+      "true": {
+      },
+      "false": {
+      }
+    },
+    "filled_4": {
+      "true": {
+      },
+      "false": {
+      }
+    },
+    "filled_5": {
+      "true": {
+      },
+      "false": {
+      }
+    },
+    "filled_6": {
+      "true": {
+      },
+      "false": {
+      }
+    },
+    "filled_7": {
+      "true": {
+      },
+      "false": {
+      }
+    },
     "stored": {
       "0": {
         "textures": {