Synchronizing GUI

[Stjubit]

Hello,

 

I have a GUI with 2 Buttons (ON and OFF) which activates/deactivates a redstone signal. My problem is, that when two player's are accessing the same GUI and one player clicks the ON-Button, the other player doesn't see that. How can I make all other players updating their GUIs?

 

I am already sending a packet to the server with the new state. This packet redirects the state to the container which sets it in the TileEntity.

 

I hope you can understand my problem, thanks,

Julian

[Failender]

you need to send a packet to all player that have the gui open or they wont know about the update on server side

[Stjubit]

Yeah, I know.

 

So should I use "sendToAllAroung()"?

Is the "ctx.getServerHandler().playerEntity()" then one of the players the packet was sent to?

 

I really don't know how I should do this.

[Stjubit]

I stored the redstonesignal in the TileEntity and I did it all by hand.

Immediatly after the player opens a GUI, I send a packet to the player with the redstonesignal to display it in the GUIContainer.

 

But how can I "update" the GUI of all players with the new redstonesignal when the GUI is already opened?

[Stjubit]

Yeah, that's what i thought, too.

But how can I get the GUIScreen which the specific player has opened to set the redstonesignal?

 

Is Minecraft.getMinecraft().currentScreen the right way?

[Stjubit]

Yeah, I know, but I think that i am missunderstanding anything.

 

When Player1 has GUI1 opened and Player2 has GUI2 opened, which GUI (1 or 2) is the Minecraft.getMinecraft().currentScreen

[delpi]

Why care who has what open. If you update the tile on the server, mark it for update.

 

Pull the data for the gui right from the tile on the client.

[Stjubit]

But if i try to get the redstonesignal of the TileEntity in the initGui()-method, the redstonesignal is always null. I think that I always need to send the redstonesignal to the client immediatly after I open the GUI. Otherwise everything will be null, because I can't get things on the Server from the Client without packets, or am I something missunderstanding?

[Stjubit]

That's good, thank you.

 

I will try to do it like diesieben07 described.

[Stjubit]

EDIT:

 

Okay, everything is working fine except for keeping track which players have opened the GUI.

So, I created a List of EntityPlayerMP and every time someone is opening the GUI, I add the player to the List.

In the GUIContainer, I overwrote the onGuiClosed()-method to remove the player when he closed the GUI.

 

Now the problem: When the player has the GUI opened and stops the Minecraft process (or clicks on the X), the onGuiClosed()-method isn't called.

Is there a event which is fired when the player leaves the game?

 

Thanks,

Julian

[Stjubit]

Okay, I will try that.

I hope that there won't be a problem with a portable item accessing the same GUI

[Stjubit]

EDIT:

 

I can't send the packet to all around, because if there are 2 blocks next to each other and player1 is accessing the gui in block1 and player2 is accessing the gui in block2, both players will get the update and that's a huge problem.

 

So, I need to check if the player (to which the packet was sent) has opened the same GUI, but how?!?

 

It seems that I ran into a bit of a problem here

[Ernio]

If u wnt cll me Skype: ernio333

 

My kb dn wrk.

 

 

[delpi]

Again I will say, when the tile entity on the server changes, tell it to send a packet to the client updating its tilentity.

 

  markblockforupdate.  Have your tilentity read/write the nbt data correctly.

 

Let the GUI naturally update with the new data from your freshly updating tile. 

 

You don't need to worry about who has what opened.

 

 

[Stjubit]

So if I update the TileEntity on the client side, the GUI can get the information stored in the TileEntity and it's not null?

[delpi]

Gui

  - render background, text, whatever the heck

      - tile.getMana()

 

oops, that returned zero or null

 

Sync data from server to client.

 

Wow, now the tile on client knows what server knows.

 

This time when my gui looks, it gets real info. 

 

 

In your tile

- make sure everytime you change a value, send the packet from server to client.  I actually mark a flag on the tile and then on a periodic tick update the client, but if you only have a few fields, so be it.

- make sure your variables is stored in NBT

- make sure the packetreceived on client method in the tile updates right.

 

[Stjubit]

Wow, thanks! I didn't knew that at all!

[GoremanIX]

I'm confused as to when to call the markBlockForUpdate method and what exactly it does

[GoremanIX]

Ok so how do I use this to update the client side to be the same as the server side? I've tried calling it at many different places. Do I need to add something else in the tile entity so that it works?