add select circuit gui for machine and circuits itself (#773)

also fixed some issue with basic machine gui introduced in 9d42b299def1c41bbc7a1f01efe445be28f54399
also retrofitted volumetric flask to use the new INetworkUpdatableItem and GT_Packet_UpdateItem, deprecating MessageSetFlaskCapacity in the meanwhile.

To open the gui for machine, shift-left-click the circuit slot
To open the gui for circuit, click any block (need to be sneaking if it's chest, furnace, etc) with the circuit held in hand.

Signed-off-by: Glease <4586901+Glease@users.noreply.github.com>

Co-authored-by: Glease <4586901+Glease@users.noreply.github.com>

2 files changed, 24 insertions, 0 deletions

diff --git a/src/main/java/gregtech/api/interfaces/IGuiScreen.java b/src/main/java/gregtech/api/interfaces/IGuiScreen.java
index d0089afbb8..5f1ae9cd2b 100644
--- a/src/main/java/gregtech/api/interfaces/IGuiScreen.java
+++ b/src/main/java/gregtech/api/interfaces/IGuiScreen.java
@@ -10,6 +10,7 @@ public interface IGuiScreen {
 
     interface IGuiElement {
         void onInit();
+        default void onRemoved() {}
         void draw(int mouseX, int mouseY, float parTicks);
     }
 
diff --git a/src/main/java/gregtech/api/interfaces/INetworkUpdatableItem.java b/src/main/java/gregtech/api/interfaces/INetworkUpdatableItem.java
new file mode 100644
index 0000000000..2e102e937c
--- /dev/null
+++ b/src/main/java/gregtech/api/interfaces/INetworkUpdatableItem.java
@@ -0,0 +1,23 @@
+package gregtech.api.interfaces;
+
+import net.minecraft.entity.player.EntityPlayerMP;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+
+/**
+ * Together with {@link gregtech.api.net.GT_Packet_UpdateItem} you can request server side to update item in hand with
+ * a NBT tag.
+ *
+ * Usual NBT tag size limit applies.
+ */
+public interface INetworkUpdatableItem {
+	/**
+	 * Receive update from client. Runs on server thread.
+	 * @param stack Stack being updated
+	 * @param player player holding the stack
+	 * @param tag received data
+	 * @return true if this stack should be kept inside the player inventory.
+	 * false if this stack should vanish (i.e. slot content set to null)
+	 */
+	boolean receive(ItemStack stack, EntityPlayerMP player, NBTTagCompound tag);
+}