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[1.7.10] Never-called code crashing (packets).


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It's not like I can't deal with it, just wondering if the code is 100% not called somewhere where I don't want it to.


So this part:

instance.registerMessage(PacketOpenIntroductionGui.class, PacketOpenIntroductionGui.class, 100, Side.CLIENT);

Specifically defines (concluded from documentation) that RECEIVER IS CLIENT.


Why does this:

public class PacketOpenIntroductionGui implements IMessage, IMessageHandler<PacketOpenIntroductionGui, IMessage>
...whole this "needed" stuff.

public IMessage onMessage(PacketOpenIntroductionGui message, MessageContext ctx)
	Minecraft.getMinecraft().displayGuiScreen(new GuiIntroduction());
	return null;


Crash when I run dedicated server pointing out NoClassDef? (There is no Minecraft on sever, i know that)

Note: On dedic there is NO print "RECEIVED" so I assumed it's not called.


What am I missing?



Turns out I can't deal with it:

Side side = FMLCommonHandler.instance().getEffectiveSide();        
	if (side == Side.CLIENT)
		Minecraft.getMinecraft().displayGuiScreen(new GuiIntroduction());

Still gives me crash NoClassDef.

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

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