grid block connected / disconnected texture

src/main/java/storagecraft/tile/TileMachine.java

@@ -0,0 +1,35 @@
+package storagecraft.tile;
+
+import io.netty.buffer.ByteBuf;
+
+public abstract class TileMachine extends TileSC implements INetworkTile {
+	protected boolean connected = false;
+
+	public void onConnected(TileController controller) {
+		connected = true;
+
+		worldObj.markBlockForUpdate(xCoord, yCoord, zCoord);
+	}
+
+	public void onDisconnected() {
+		connected = false;
+
+		worldObj.markBlockForUpdate(xCoord, yCoord, zCoord);
+	}
+
+	public boolean isConnected() {
+		return connected;
+	}
+
+	public abstract int getEnergyUsage();
+
+	@Override
+	public void fromBytes(ByteBuf buf) {
+		connected = buf.readBoolean();
+	}
+
+	@Override
+	public void toBytes(ByteBuf buf) {
+		buf.writeBoolean(connected);
+	}
+}