[1.12.2]Container Crash: Ticking player

[GloriousAlpaca]

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

    | State     | ID                | Version      | Source                                          | Signature                                |
    |:--------- |:----------------- |:------------ |:----------------------------------------------- |:---------------------------------------- |
    | UCHIJAAAA | minecraft         | 1.12.2       | minecraft.jar                                   | None                                     |
    | UCHIJAAAA | mcp               | 9.42         | minecraft.jar                                   | None                                     |
    | UCHIJAAAA | FML               | 8.0.99.99    | forgeSrc-1.12.2-14.23.4.2705.jar                | None                                     |
    | UCHIJAAAA | forge             | 14.23.4.2705 | forgeSrc-1.12.2-14.23.4.2705.jar                | None                                     |
    | UCHIJAAAA | ame               | 1.0          | ame-0.1.jar                                     | None                                     |
    | UCHIJAAAA | codechickenlib    | 3.2.0.345    | CodeChickenLib-1.12.2-3.2.0.345-universal.jar   | f1850c39b2516232a2108a7bd84d1cb5df93b261 |
    | UCHIJAAAA | redstoneflux      | 2.0.2        | RedstoneFlux-1.12-2.0.2.3-universal.jar         | 8a6abf2cb9e141b866580d369ba6548732eff25f |
    | UCHIJAAAA | cofhcore          | 4.5.2        | CoFHCore-1.12.2-4.5.2.19-universal.jar          | None                                     |
    | UCHIJAAAA | cofhworld         | 1.2.0        | CoFHWorld-1.12.2-1.2.0.5-universal.jar          | 8a6abf2cb9e141b866580d369ba6548732eff25f |
    | UCHIJAAAA | thermalfoundation | 2.5.0        | ThermalFoundation-1.12.2-2.5.0.19-universal.jar | 8a6abf2cb9e141b866580d369ba6548732eff25f |
    | UCHIJAAAA | thermalexpansion  | 5.5.0        | ThermalExpansion-1.12.2-5.5.0.29-universal.jar  | 8a6abf2cb9e141b866580d369ba6548732eff25f |

    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, 2018 by GloriousAlpaca

[GloriousAlpaca]

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, 2018 by GloriousAlpaca

[GloriousAlpaca]

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, 2018 by GloriousAlpaca

[Draco18s]

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, 2018 by Draco18s

[GloriousAlpaca]

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, 2018 by GloriousAlpaca

[GloriousAlpaca]

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?

[Draco18s]

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.

[GloriousAlpaca]

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 ?

 

[GloriousAlpaca]

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!

[GloriousAlpaca]

4 minutes ago, diesieben07 said:

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

Okay i'll give it a go!

Thank you for helping.