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[1.12.2]Container Crash: Ticking player

Posted June 24, 20187 yr

Hey,

i'm in need of some help concerning a container.

Container:

Spoiler

package com.andreas.ame.containers;
import com.andreas.ame.tileentities.EntityTable;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.Slot;
import net.minecraftforge.items.CapabilityItemHandler;
import net.minecraftforge.items.IItemHandler;
import net.minecraftforge.items.SlotItemHandler;

public class ContainerTable extends Container{

   public ContainerTable(InventoryPlayer playerInv, final EntityTable table) {
       IItemHandler inventory = table.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null);
       addSlotToContainer(new SlotItemHandler(inventory, 0, 80, 35) {
           @Override
           public void onSlotChanged() {
               table.markDirty();
           }
       });

       for (int i = 0; i < 3; i++) {
           for (int j = 0; j < 9; j++) {
               addSlotToContainer(new Slot(playerInv, j + i * 9 + 9, 8 + j * 18, 84 + i * 18));
           }
       }

       for (int k = 0; k < 9; k++) {
           addSlotToContainer(new Slot(playerInv, k, 8 + k * 18, 142));
       }
   }

   @Override
   public boolean canInteractWith(EntityPlayer playerIn) {
       // TODO Auto-generated method stub
       return true;
   }

}

Building the Player Inventory works, but the SlotItemHandler gives me this Crash Report:

Spoiler

---- Minecraft Crash Report ----
// Ooh. Shiny.

Time: 6/24/18 4:59 PM
Description: Ticking player

java.lang.NullPointerException: Ticking player
   at net.minecraftforge.items.SlotItemHandler.getStack(SlotItemHandler.java:79)
   at net.minecraft.inventory.Container.detectAndSendChanges(Container.java:97)
   at net.minecraft.entity.player.EntityPlayerMP.onUpdate(EntityPlayerMP.java:365)
   at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:2168)
   at net.minecraft.world.WorldServer.updateEntityWithOptionalForce(WorldServer.java:871)
   at net.minecraft.world.World.updateEntity(World.java:2127)
   at net.minecraft.world.WorldServer.tickPlayers(WorldServer.java:672)
   at net.minecraft.world.World.updateEntities(World.java:1903)
   at net.minecraft.world.WorldServer.updateEntities(WorldServer.java:643)
   at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:842)
   at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:743)
   at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192)
   at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:592)
   at java.lang.Thread.run(Thread.java:748)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Server thread
Stacktrace:
   at net.minecraftforge.items.SlotItemHandler.getStack(SlotItemHandler.java:79)
   at net.minecraft.inventory.Container.detectAndSendChanges(Container.java:97)
   at net.minecraft.entity.player.EntityPlayerMP.onUpdate(EntityPlayerMP.java:365)
   at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:2168)
   at net.minecraft.world.WorldServer.updateEntityWithOptionalForce(WorldServer.java:871)
   at net.minecraft.world.World.updateEntity(World.java:2127)

-- Player being ticked --
Details:
   Entity Type: null (net.minecraft.entity.player.EntityPlayerMP)
   Entity ID: 231
   Entity Name: Player711
   Entity's Exact location: -254.36, 65.00, 243.01
   Entity's Block location: World: (-255,65,243), Chunk: (at 1,4,3 in -16,15; contains blocks -256,0,240 to -241,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
   Entity's Momentum: 0.00, -0.08, 0.00
   Entity's Passengers: []
   Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
   at net.minecraft.world.WorldServer.tickPlayers(WorldServer.java:672)
   at net.minecraft.world.World.updateEntities(World.java:1903)
   at net.minecraft.world.WorldServer.updateEntities(WorldServer.java:643)

-- Affected level --
Details:
   Level name: TEST
   All players: 1 total; [EntityPlayerMP['Player711'/231, l='TEST', x=-254.36, y=65.00, z=243.01]]
   Chunk stats: ServerChunkCache: 625 Drop: 0
   Level seed: 6028521562681449438
   Level generator: ID 00 - default, ver 1. Features enabled: true
   Level generator options:
   Level spawn location: World: (-228,64,236), Chunk: (at 12,4,12 in -15,14; contains blocks -240,0,224 to -225,255,239), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
   Level time: 46199 game time, 46199 day time
   Level dimension: 0
   Level storage version: 0x04ABD - Anvil
   Level weather: Rain time: 4716 (now: true), thunder time: 16996 (now: false)
   Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
   at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:842)
   at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:743)
   at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192)
   at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:592)
   at java.lang.Thread.run(Thread.java:748)

-- System Details --
Details:
   Minecraft Version: 1.12.2
   Operating System: Windows 10 (amd64) version 10.0
   Java Version: 1.8.0_171, Oracle Corporation
   Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
   Memory: 649280984 bytes (619 MB) / 1023934464 bytes (976 MB) up to 1894252544 bytes (1806 MB)
   JVM Flags: 0 total;
   IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
   FML: MCP 9.42 Powered by Forge 14.23.4.2705 11 mods loaded, 11 mods active
   States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

   Loaded coremods (and transformers):
   GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
   Profiler Position: N/A (disabled)
   Player Count: 1 / 8; [EntityPlayerMP['Player711'/231, l='TEST', x=-254.36, y=65.00, z=243.01]]
   Type: Integrated Server (map_client.txt)
   Is Modded: Definitely; Client brand changed to 'fml,forge'

Help would be appreciated!

On an unrelated Note:

How can I easily figure out where my Container will be on Screen ?(x and y position)

Edited June 24, 20187 yr by GloriousAlpaca

Quote

June 24, 20187 yr

Author

8 minutes ago, diesieben07 said:

You passed a null IItemHandler to SlotItemHandler.

How could I fix this?

8 minutes ago, diesieben07 said:

You passed a null IItemHandler to SlotItemHandler.

Don't you specify that yourself?

Yes, but i don't know what position the coordinates correspond to in-game.

Edited June 24, 20187 yr by GloriousAlpaca

Quote

June 24, 20187 yr

Author

5 minutes ago, diesieben07 said:

Don't pass null.

Sadly I don't really know why i'm passing the null. :T

5 minutes ago, diesieben07 said:

Can you please provide your use case / actual problem? This sounds like an x/y problem.

I have made a gui image and want to put the container slots on the corresponding positions.

My problem is that I don't know the coordinates of the image slots.

Edited June 24, 20187 yr by GloriousAlpaca

Quote

June 24, 20187 yr

Show your EntityTable class.

4 minutes ago, GloriousAlpaca said:

My problem is that I don't know the coordinates of the image slots.

Try pixels, measured from the top left.

Edited June 24, 20187 yr by Draco18s

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable. If you think this is the case, JUST REPORT ME. Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

DO NOT PM ME WITH PROBLEMS. No help will be given.

Quote

June 24, 20187 yr

Author

The Entity Class is basically empty:

Spoiler

package com.andreas.ame.tileentities;

import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.TileEntity;
import net.minecraftforge.energy.IEnergyStorage;

public class EntityTable extends TileEntity implements IEnergyStorage{

   public int energy = 0;

   @Override
   public NBTTagCompound writeToNBT(NBTTagCompound compound) {
       compound.setInteger("energy", energy);
       return super.writeToNBT(compound);
   }

   @Override
   public void readFromNBT(NBTTagCompound compound) {
       energy = compound.getInteger("energy");
       super.readFromNBT(compound);
   }

   @Override
   public int receiveEnergy(int maxReceive, boolean simulate) {
       // TODO Auto-generated method stub
       return 0;
   }

   @Override
   public int extractEnergy(int maxExtract, boolean simulate) {
       // TODO Auto-generated method stub
       return 0;
   }

   @Override
   public int getEnergyStored() {
       // TODO Auto-generated method stub
       return energy;
   }

   @Override
   public int getMaxEnergyStored() {
       // TODO Auto-generated method stub
       return 0;
   }

   @Override
   public boolean canExtract() {
       // TODO Auto-generated method stub
       return false;
   }

   @Override
   public boolean canReceive() {
       // TODO Auto-generated method stub
       return true;
   }

}

Edited June 24, 20187 yr by GloriousAlpaca

Quote

June 24, 20187 yr

Author

1 minute ago, diesieben07 said:

You have made the GUI texture, hence you are the one who knows where you put the slots.

Okay so if i understand this correctly i'm giving the coordinates in pixels on my image?

Quote

June 24, 20187 yr

10 minutes ago, GloriousAlpaca said:

IEnergyStorage

Why are you doing this and not implementing an Energy Capability?

Capabilities are the solution to the stacks of mod-supplied interfaces.

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

DO NOT PM ME WITH PROBLEMS. No help will be given.

Quote

June 24, 20187 yr

Author

Just now, diesieben07 said:

Yes.

Okay that's great!

1 minute ago, diesieben07 said:

... yet you expect it to have the IItemHandler capability:

I have tried implementing it there but failed miserably thus just leaving it out.

How would I give it the capability ?

Quote

June 24, 20187 yr

Author

Just now, Draco18s said:

Why are you doing this and not implementing an Energy Capability?

Capabilities are the solution to the stacks of mod-supplied interfaces.

I'll remember that thanks!

Quote

June 24, 20187 yr

Author

4 minutes ago, diesieben07 said:

https://mcforge.readthedocs.io/en/latest/datastorage/capabilities/

Okay i'll give it a go!

Thank you for helping.

Quote

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