basic crafting grid gui stuff (no functionality yet)

src/main/java/storagecraft/tile/TileGrid.java

@@ -1,7 +1,13 @@
 package storagecraft.tile;
 
+import net.minecraft.nbt.NBTTagCompound;
+import storagecraft.inventory.InventorySimple;
+import storagecraft.util.InventoryUtils;
+
 public class TileGrid extends TileMachine
 {
+	private InventorySimple craftingInventory = new InventorySimple("crafting", 10);
+
 	@Override
 	public int getEnergyUsage()
 	{
@@ -12,4 +18,35 @@ public class TileGrid extends TileMachine
 	public void updateMachine()
 	{
 	}
+
+	public int getType()
+	{
+		return worldObj.getBlockMetadata(xCoord, yCoord, zCoord);
+	}
+
+	public boolean isCrafting()
+	{
+		return getType() == 1;
+	}
+
+	public InventorySimple getCraftingInventory()
+	{
+		return craftingInventory;
+	}
+
+	@Override
+	public void readFromNBT(NBTTagCompound nbt)
+	{
+		super.readFromNBT(nbt);
+
+		InventoryUtils.restoreInventory(craftingInventory, nbt);
+	}
+
+	@Override
+	public void writeToNBT(NBTTagCompound nbt)
+	{
+		super.writeToNBT(nbt);
+
+		InventoryUtils.saveInventory(craftingInventory, nbt);
+	}
 }