Custom Crafting Table - Unable to open GUI

[nxwhitney]

I am trying to update custom crafting table from 1.7.10 to 1.8 and can't seem to get the Gui to open.  I have been able to update other blocks that have tile entities, but I cannot get the table to open.

 

Here is my GuiHandler:

 

package com.nealegaming.mod.handler;

import com.nealegaming.mod.NGGlobal;
import com.nealegaming.mod.blocks.NGBlocks;
import com.nealegaming.mod.container.ContainerAlloySmelter;
import com.nealegaming.mod.container.ContainerDraftingBoard;
import com.nealegaming.mod.container.ContainerGraniteOven;
import com.nealegaming.mod.container.ContainerIngotMasher;
import com.nealegaming.mod.gui.GuiAlloySmelter;
import com.nealegaming.mod.gui.GuiDraftingBoard;
import com.nealegaming.mod.gui.GuiGraniteOven;
import com.nealegaming.mod.gui.GuiIngotMasher;
import com.nealegaming.mod.tileentity.TileEntityAlloySmelter;
import com.nealegaming.mod.tileentity.TileEntityGraniteOven;
import com.nealegaming.mod.tileentity.TileEntityIngotMasher;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.BlockPos;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.network.IGuiHandler;

public class NGGuiHandler implements IGuiHandler {

@Override
public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
	TileEntity entity = world.getTileEntity(new BlockPos(x, y, z));
	if (entity != null) {
		switch(ID) {
		case NGGlobal.graniteOvenGUIID:
			if (entity instanceof TileEntityGraniteOven) {
				return new ContainerGraniteOven(player.inventory, (TileEntityGraniteOven) entity);
			}
			return null;

		case NGGlobal.alloySmelterGUIID:
			if (entity instanceof TileEntityAlloySmelter) {
				return new ContainerAlloySmelter(player.inventory, (TileEntityAlloySmelter) entity);
			}
			return null;


		case NGGlobal.ingotMasherGUIID:
			if (entity instanceof TileEntityIngotMasher) {
				return new ContainerIngotMasher(player.inventory, (TileEntityIngotMasher) entity);
			}
			return null;
		}
	}
	if(ID == NGGlobal.draftingBoardGUIID) {

		return ID == NGGlobal.draftingBoardGUIID && world.getBlockState(new BlockPos (x, y, z)) == NGBlocks.draftingTable ? new ContainerDraftingBoard(player.inventory, world, x, y, z) : null;
	}

    return null;
}

@Override
public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
	TileEntity entity = world.getTileEntity(new BlockPos(x, y, z));

	if(entity != null) {
		switch(ID) {
		case NGGlobal.graniteOvenGUIID:
			if (entity instanceof TileEntityGraniteOven) {
				return new GuiGraniteOven(player.inventory, (TileEntityGraniteOven) entity);
			}
			return null;

		case NGGlobal.alloySmelterGUIID:
			if (entity instanceof TileEntityAlloySmelter) {
				return new GuiAlloySmelter(player.inventory, (TileEntityAlloySmelter) entity);
			}
			return null;

		case NGGlobal.ingotMasherGUIID:
			if (entity instanceof TileEntityIngotMasher) {
				return new GuiIngotMasher(player.inventory, (TileEntityIngotMasher) entity);
			}
			return null;
		}

	}
	if(ID == NGGlobal.draftingBoardGUIID) {
		return ID == NGGlobal.draftingBoardGUIID && world.getBlockState(new BlockPos (x, y, z)) == NGBlocks.draftingTable ? new GuiDraftingBoard(player.inventory, world, x, y, z) : null;
	}
	return null;
}
}

 

And my Block class for the crafting table:

 

package com.nealegaming.mod.blocks;

import com.nealegaming.mod.Main;
import com.nealegaming.mod.NGGlobal;
import com.nealegaming.mod.container.ContainerDraftingBoard;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.inventory.Container;
import net.minecraft.util.BlockPos;
import net.minecraft.util.ChatComponentTranslation;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.IChatComponent;
import net.minecraft.world.IInteractionObject;
import net.minecraft.world.World;

public class NGDraftingBoard extends Block
{
    protected NGDraftingBoard(String name)
    {
        super(Material.wood);
        this.setCreativeTab(NGGlobal.ngCreativeTab);
        this.setUnlocalizedName(name);
    }

    public boolean onBlockActivated(World worldIn, BlockPos pos, IBlockState state, EntityPlayer playerIn, EnumFacing side, float hitX, float hitY, float hitZ)
    {
    	if (!worldIn.isRemote) {
    		playerIn.openGui(Main.instance, NGGlobal.draftingBoardGUIID, worldIn, pos.getX(), pos.getY(), pos.getZ());
        }
        return true;
    }

    public static class InterfaceCraftingTable implements IInteractionObject
        {
            private final World world;
            private final BlockPos position;

            public InterfaceCraftingTable(World worldIn, BlockPos pos)
            {
                this.world = worldIn;
                this.position = pos;
            }

            /**
             * Get the name of this object. For players this returns their username
             */
            public String getName()
            {
                return null;
            }

            /**
             * Returns true if this thing is named
             */
            public boolean hasCustomName()
            {
                return false;
            }

            /**
             * Get the formatted ChatComponent that will be used for the sender's username in chat
             */
            public IChatComponent getDisplayName()
            {
                return new ChatComponentTranslation(NGBlocks.draftingTable.getUnlocalizedName() + ".name", new Object[0]);
            }

            public Container createContainer(InventoryPlayer playerInventory, EntityPlayer playerIn)
            {
                return new ContainerDraftingBoard(playerInventory, this.world, this.position);
            }

            public String getGuiID()
            {
                return "ng:draftingBoard";
            }
        }
}

 

I can post more classes, if I need to.  Just a point in the general direction would be greatly appreciated.

[Elix_x]

In your GuiHandler, you are getting block state and trying to compare it to block.

Either get block from state, or compare to default state of block.

[nxwhitney]

I guess I have been staring at it too long.  I don't even need to compare them.

 

I did this for getServerGuiElement instead and the GUI opens for a second, but only just:

 

if(ID == NGGlobal.draftingBoardGUIID) {
return new ContainerDraftingBoard(player.inventory, world, x, y, z);
}

 

It's the same with getClientGuiElement:

 

if(ID == NGGlobal.draftingBoardGUIID) {
return new GuiDraftingBoard(player.inventory, world, x, y, z);
}

[nxwhitney]

I should say (shame on me) is that my console has the following when I RClick on it:

 

java.lang.NullPointerException: Ticking entity
at com.nealegaming.mod.container.ContainerDraftingBoard.canInteractWith(ContainerDraftingBoard.java:93)

 

That method is this:

 

public boolean canInteractWith(EntityPlayer playerIn)
    {
    	return this.worldObj.getBlockState(this.pos).getBlock() != NGBlocks.draftingTable ? false : playerIn.getDistanceSq((double)this.pos.getX() + 0.5D, (double)this.pos.getY() + 0.5D, (double)this.pos.getZ() + 0.5D) <= 64.0D;
    }

[Elix_x]

I should say (shame on me) is that my console has the following when I RClick on it:

 

java.lang.NullPointerException: Ticking entity
at com.nealegaming.mod.container.ContainerDraftingBoard.canInteractWith(ContainerDraftingBoard.java:93)

 

That method is this:

 

public boolean canInteractWith(EntityPlayer playerIn)
    {
    	return this.worldObj.getBlockState(this.pos).getBlock() != NGBlocks.draftingTable ? false : playerIn.getDistanceSq((double)this.pos.getX() + 0.5D, (double)this.pos.getY() + 0.5D, (double)this.pos.getZ() + 0.5D) <= 64.0D;
    }

Then there's something null there (it should be obvious).

Now, use your IDE's debug mode to see what actually is null.