[Read items in chest when opened on client side]

8 hours ago, diesieben07 said:

You can't. There is no way to tell client-side whether you are looking at an empty inventory or the contents have not arrived yet.

Thanks for helping me.

[Read items in chest when opened on client side]

4 hours ago, diesieben07 said:

There is no better way than to check every tick.

How do I check if the chest contents are loaded?

[Read items in chest when opened on client side]

3 minutes ago, diesieben07 said:

Doesn't matter.

 

There is no event. The chest contents could change at any point. Please explain what exactly you are trying to achieve.

Read the contents of a chest upon opening, and detect its changes.

I wanted the packet name to check the source code and see if there is any way I can detect.

[Read items in chest when opened on client side]

2 hours ago, diesieben07 said:

Inventory contents are sent later in a separate packet.

Do you know the packet type name?

 

Which event should I handle and access the chest contents inside the event handler?

[Read items in chest when opened on client side]

16 hours ago, diesieben07 said:

EntityPlayer#openContainer to get the currently open Container. Then Container#inventorySlots to get all Slots. Then Slot#getStack to get the ItemStack in that slot.

Firstly, EntityPlayer#openContainer is assigned the container of the opened chest AFTER the initialization (GuiScreen#initGui) of the opened GuiChest (the container is stored in GuiContainer). So, I changed to try to access the chest contents in InitGuiEvent.Post event handler.

 

Secondly, I found that the container stored in GuiContainer is a ContainerChest containing the player inventory AND the chest inventory. Therefore, it is not accurate to access the container and directly get the item stacks via it. Then, I found that ContainerChest#getLowerChestInventory returns the chest inventory (somehow it is called lower inventory).

 

Finally, I checked the runtime type of the inventory returned by ContainerChest#getLowerChestInventory. It turns out to be ContainerLocalMenu. The only place which constructs new ContainerLocalMenus is NetHandlerPlayClient#handleOpenWindow. However, the method accepts a packet that does not store the chest inventory contents.

 

Where did I go wrong? How do I access the chest contents?

[Read items in chest when opened on client side]

15 hours ago, diesieben07 said:

EntityPlayer#openContainer to get the currently open Container. Then Container#inventorySlots to get all Slots. Then Slot#getStack to get the ItemStack in that slot.

It doesn't work. It seems to always access the player inventory.

[Read items in chest when opened on client side]

How do I read the items in an opened chest (chest gui opened), on client side?

[How to intercept chat message before sent from client to server]

How do I intercept chat message before sent from client to server? Is there an event for it?

[When inventory opened, KeyInputEvent and MouseEvent do not get fired]

When inventory opened, KeyInputEvent and MouseEvent do not get fired. How do I detect key inputs and mouse inputs when inventory is opened?

[EntityJoinWorldEvent fired multiple times]

36 minutes ago, Draco18s said:

mc here is almost certainly the result of calling Minecraft.getMinecraft(), which won't work on a server (it'll crash the server).

I am working on a client side mod.

19 hours ago, MairwunNx said:

if you updated to 1.14.4: Where did you get the method `addChatMessage` and `ChatComponentText` class?

Sorry I was in a rush and copied from my old java file.

[EntityJoinWorldEvent fired multiple times]

Bump.

I have updated to 1.14.4 - 28.1.0.

I did some testing and found that:

• EntityJoinWorldEvent is fired once when joining a server (and a world) from the multiplayer menu
• EntityJoinWorldEvent is fired multiple times (usually 6 - 10) when switching between worlds on a server or servers on a bungee network
• The Worlds returned by EntityJoinWorldEvents are not the same instance
• The EntityJoinWorldEvents are not the same instance (that means I did not register more than once)

I have already added the following check into EntityJoinWorldEvent handler

mc.thePlayer == event.entity

Here is my handler in case:

	@SubscribeEvent
	public void onEntityJoinWorld(EntityJoinWorldEvent event) {
		if (mc.thePlayer == event.entity) {
			mc.thePlayer.addChatMessage(
					new ChatComponentText("hello"));
		}
	}

Does anyone know why this is happening?

[Run Configurations]

When setting up the project, I executed "gradlew genEclipseRuns" and "gradlew eclipse", but there aren't any run configurations (Client / Server).

[EntityJoinWorldEvent fired multiple times]

28 minutes ago, Animefan8888 said:

Sorry 1.8.9 is an extremely outdated version and we no longer support it on this forum. Please update to receive support. Once a forum moderator sees this they will lock it.

Updated

[EntityJoinWorldEvent fired multiple times]

2 minutes ago, SerpentDagger said:

It would be helpful if you could show the whole classes, as the event system is impacted by that.

package com.example.examplemod;

import net.minecraft.client.Minecraft;
import net.minecraft.client.multiplayer.ServerData;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.entity.EntityJoinWorldEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventHandler;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

@Mod(modid = ExampleMod.MODID, version = ExampleMod.VERSION)
public class ExampleMod {
	public static final String MODID = "examplemod";
	public static final String VERSION = "1.0";
	Minecraft mc;

	@EventHandler
	public void preInit(FMLPreInitializationEvent event) {
		mc = Minecraft.getMinecraft();
		MinecraftForge.EVENT_BUS.register(this);
	}
	
	@SubscribeEvent
	public void onEntityJoinWorld(EntityJoinWorldEvent event) {
		if (!event.world.isRemote) {
			mc.thePlayer.sendChatMessage("hello");
		}
	}
}

 

[EntityJoinWorldEvent fired multiple times]

1 hour ago, SerpentDagger said:

What's the current state of the code?

 

By this do you mean you want to send a message to the player, or send a message via the player?

via the player to the server

1 hour ago, Animefan8888 said:

Post your code. And this includes how you registered your event handler.

	Minecraft mc;
	@EventHandler
	public void preInit(FMLPreInitializationEvent event) {
		mc = Minecraft.getMinecraft();
		MinecraftForge.EVENT_BUS.register(this);
	}

	@SubscribeEvent
	public void onEntityJoinWorld(EntityJoinWorldEvent event) {
		if (!event.world.isRemote) {
			mc.thePlayer.sendChatMessage("hello");
		}
	}

 

[EntityJoinWorldEvent fired multiple times]

16 minutes ago, Animefan8888 said:

The even is fired on both the client and the server. Make sure to only do your code on the logical server by checking if World#isRemote is false.

I am new to forge modding, so please forgive me for my basic questions.

 

I am trying to make the player send a chat message when joined a server world. Before ensuring World#isRemote is false, the chat message is sent 3 times every 3 seconds. When I added the check, no chat message is sent.

[EntityJoinWorldEvent fired multiple times]

Why is it fired multiple times when a player joins a server (and a world)? Are there any alternative events?