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[Solved!] Log into a server?

Posted July 6, 201510 yr

How would I automatically join a server after I get kicked from one?

Quote

July 6, 201510 yr

So. You want to automatically send commands to a Server in a predefined Intervall and reconnect when disconnecting.. I am not sure if I want to know where this is heading.

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July 6, 201510 yr

Author

This is not spam or anything bad, the server reboots at a time, and I want to be on it when after it starts up again, and the command sending is not irrelevant to this at all

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July 6, 201510 yr

Author

a) That's a dick move.

b) ClientDisconnectionFromServerEvent and check out GuiMultiplayer to see how to initialize a connection to a server.

Anyway on knowing if the connection succeeded?

Quote

July 7, 201510 yr

This is typical "try over and over again util you succed" case.

1. Setup ClientTickEvent and ClientDisconnectionFromServerEvent.

2. Create some static boolean "shouldAutoReconnect".

3. When you get DC, in your ClientDisconnectionFromServerEvent you can set boolean to true.

4. Use ClientTickEvent to check that boolean, then check current screen (instanceof GuiSomething).

5. Make whatever if statements you need and create some incrementation - make client try to reconnect every e.g 2sec (if conditions are met and you are not ingame) or whatever.

6. Done.

If you would need to directly know the moment when client faild to connect you can check if current screen displays error msg. Again - you need to do that per-tick with ClientTickEvent.

At least that''s what I'd do.

1.7.10 is no longer supported by forge, you are on your own.

Quote

July 7, 201510 yr

Author

FMLClientHandler.instance().connectToServer(FMLClientHandler.instance().getClient().currentScreen, new ServerData(null, Main.getConfigData().getIP() + ":" + Main.getConfigData().getPort()));

^ I am getting a null point exception while running this

Quote

July 7, 201510 yr

Just look at callbacks

In GuiMultiplayer:

private void connectToServer(ServerData server)
    {
        net.minecraftforge.fml.client.FMLClientHandler.instance().connectToServer(this, server);
    }

You could assume that you need GuiMultiplayer.

1.7.10 is no longer supported by forge, you are on your own.

Quote

July 7, 201510 yr

Author

Just look at callbacks

In GuiMultiplayer:
private void connectToServer(ServerData server)
    {
        net.minecraftforge.fml.client.FMLClientHandler.instance().connectToServer(this, server);
    }
You could assume that you need GuiMultiplayer.

I keep getting a null pointer

java.lang.NullPointerException

at net.minecraft.client.Minecraft.runTick(Minecraft.java:1994) ~[Minecraft.class:?]

at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1028) ~[Minecraft.class:?]

at net.minecraft.client.Minecraft.run(Minecraft.java:951) [Minecraft.class:?]

at net.minecraft.client.main.Main.main(Main.java:164) [Main.class:?]

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_71]

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]

at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_71]

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.11.jar:?]

at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]

at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source) [start/:?]

at GradleStart.main(Unknown Source) [start/:?]

[02:51:33] [Client thread/INFO] [sTDOUT]: [net.minecraft.client.Minecraft:displayCrashReport:388]: ---- Minecraft Crash Report ----

// Ouch. That hurt

Time: 07/07/15 02:51

Description: Unexpected error

java.lang.NullPointerException: Unexpected error

at net.minecraft.client.Minecraft.runTick(Minecraft.java:1994)

at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1028)

at net.minecraft.client.Minecraft.run(Minecraft.java:951)

at net.minecraft.client.main.Main.main(Main.java:164)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source)

at GradleStart.main(Unknown Source)

Quote

July 7, 201510 yr

*Ernio focuses on blank page with white-colored letters that supposed to be OP's code*

We are not wizards - post your code.

1.7.10 is no longer supported by forge, you are on your own.

Quote

July 7, 201510 yr

Author

*Ernio focuses on blank page with white-colored letters that supposed to be OP's code*

We are not wizards - post your code.

				FMLClientHandler.instance().setupServerList();//might be unnecessary
			FMLClientHandler.instance().connectToServer(new GuiMultiplayer(FMLClientHandler.instance().getClient().currentScreen), new ServerData("", Main.getConfigData().getIP() + ":" + Main.getConfigData().getPort()));

Quote

July 7, 201510 yr

Try using

FMLClientHandler#connectToServerAtStartup(hostAddress, port)

What it does is basically setupServerList and connectToServer, but also first pings the server for availability.

Don't ask for support per PM! They'll get ignored! | If a post helped you, click the "Thank You" button at the top right corner of said post! |

mah twitter

This thread makes me sad because people just post copy-paste-ready code when it's obvious that the OP has little to no programming experience. This is not how learning works.

Quote

July 7, 201510 yr

Author

I keep getting a nullpointer D:

java.lang.NullPointerException
at net.minecraft.client.Minecraft.runTick(Minecraft.java:1994) ~[Minecraft.class:?]
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1028) ~[Minecraft.class:?]
at net.minecraft.client.Minecraft.run(Minecraft.java:951) [Minecraft.class:?]
at net.minecraft.client.main.Main.main(Main.java:164) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_71]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_71]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.11.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]
at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source) [start/:?]
at GradleStart.main(Unknown Source) [start/:?]

My code

FMLClientHandler.instance().connectToServerAtStartup(Main.getConfigData().getIP(), Integer.parseInt(Main.getConfigData().getPort()));

Quote

July 7, 201510 yr

Author

a) That's a dick move.

b) ClientDisconnectionFromServerEvent and check out GuiMultiplayer to see how to initialize a connection to a server.

you know what am I doing wrong?

Quote

July 7, 201510 yr

Author

Look at the line that the crash points to and figure out what is null there and what you are doing that is causing that.

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

^I think the nullpointer is caused because there is no arguments on line 28 at net.minecraft.launchwrapper.Launch.main?

Quote

July 7, 201510 yr

Author

*Ernio focuses on blank page with white-colored letters that supposed to be OP's code*

We are not wizards - post your code.

spoonfeed me abit?

Quote

July 7, 201510 yr

Author

bump

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July 8, 201510 yr

Author

bump...

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July 8, 201510 yr

Author

- Less bumping, more figuring it out yourself.

- There will be no spoonfeeding.

- net.minecraft.client.Minecraft.runTick(Minecraft.java:1994) <- THIS is where the crash occurs. Look at that line.

it it to do with me creating the connection on a keybind?

Quote

July 8, 201510 yr

Author

I will not write any more responses until you follow what I told you:

Look at the line that the crash points to and figure out what is null there and what you are doing that is causing that.

At least tell us what is null on that line so we can do your work for you.

EntityPlayer.itemInUse (ItemStack)

Quote

July 8, 201510 yr

Author

Look at the line that the crash points to and figure out what is null there and what you are doing that is causing that.

I don't see the link between itemuse, and what I am doing.

Quote

July 9, 201510 yr

Author

Use a debugger.

instead of a nullpointer, now I am getting a runtime error

[15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: java.lang.RuntimeException: No OpenGL context found in the current thread.
Exception in thread "Timer-0" [15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: 	at org.lwjgl.opengl.GLContext.getCapabilities(GLContext.java:124)
[15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: 	at net.minecraft.client.gui.GuiMainMenu.<init>(GuiMainMenu.java:125)
[15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: 	at cpw.mods.fml.client.FMLClientHandler.connectToServerAtStartup(FMLClientHandler.java:806)
[15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: 	at net.RPD.BlazeBot.Bot$3.run(Bot.java:67)
[15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: 	at java.util.TimerThread.mainLoop(Unknown Source)
[15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: 	at java.util.TimerThread.run(Unknown Source)

and my event

	@SubscribeEvent
public void onDisconnect(ClientDisconnectionFromServerEvent e) {
	Timer t = new Timer();
	t.schedule(new TimerTask() {
		@Override
		public void run() {
			FMLClientHandler.instance().connectToServerAtStartup("192.168.1.8", 69);
		}
	}, 5000);
}

Quote

July 9, 201510 yr

Author

The message tells you exactly what is wrong: you must interact with the game on the main thread. Timer obviously uses a 2nd thread.

k, I thought the game was multi threaded xdd, going to make new timers now on the same thread

Quote

July 9, 201510 yr

Author

This is typical "try over and over again util you succed" case.

1. Setup ClientTickEvent and ClientDisconnectionFromServerEvent.

2. Create some static boolean "shouldAutoReconnect".

3. When you get DC, in your ClientDisconnectionFromServerEvent you can set boolean to true.

4. Use ClientTickEvent to check that boolean, then check current screen (instanceof GuiSomething).

5. Make whatever if statements you need and create some incrementation - make client try to reconnect every e.g 2sec (if conditions are met and you are not ingame) or whatever.

6. Done.

If you would need to directly know the moment when client faild to connect you can check if current screen displays error msg. Again - you need to do that per-tick with ClientTickEvent.

At least that''s what I'd do.

Whats the name of the GUI screen of the actual game ingame?

Quote

July 9, 201510 yr

Author

The message tells you exactly what is wrong: you must interact with the game on the main thread. Timer obviously uses a 2nd thread.

Thank you all for helping me out!

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