[1.10.2] Loading custom gui for custom block

Messorix · August 3, 2016

Sure

ModBlock (parent of all type of custom blocks)

package com.messy.core.blocks;

import com.messy.core.MessyCore;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.IBlockAccess;

public abstract class ModBlock extends Block
{
public static String NAME;

    public ModBlock(String unlocalizedName, String registryName, Material material)
    {
    	super(material);
    	
    	NAME = unlocalizedName;
        this.setUnlocalizedName(unlocalizedName);
        this.setCreativeTab(MessyCore.messyCoreTab);
    }

public int getLightValue(IBlockAccess world, BlockPos pos) {
	return 0;
}

public boolean isNormalCube(IBlockState state)
{
	return false;
}

public boolean isFullCube(IBlockState state) {
	return false;
}
}

BlockMachine (parent of all blocks with processing like furnace and stuff)

package com.messy.core.blocks;

import java.util.Random;

import javax.annotation.Nullable;

import net.minecraft.block.BlockHorizontal;
import net.minecraft.block.ITileEntityProvider;
import net.minecraft.block.material.Material;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.properties.PropertyDirection;
import net.minecraft.block.properties.PropertyInteger;
import net.minecraft.block.state.BlockStateContainer;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.init.Blocks;
import net.minecraft.inventory.Container;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.EnumBlockRenderType;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.Mirror;
import net.minecraft.util.Rotation;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.MathHelper;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;

public abstract class BlockMachine extends ModBlock implements ITileEntityProvider
{
    public static final PropertyDirection FACING = BlockHorizontal.FACING;
    private final boolean isWorking;
    protected static boolean keepInventory;
    /*protected static PropertyInteger burning_sides;
    protected static int one_side_light_value;
    protected static int two_side_light_value;
    protected static int three_side_light_value;
    protected static int four_side_light_value;*/
    
public BlockMachine(String unlocalizedName, String registryName, Material material, boolean isWorking) {
	super(unlocalizedName, registryName, material);
        this.setDefaultState(this.blockState.getBaseState().withProperty(FACING, EnumFacing.NORTH));
        this.isWorking = isWorking;
}

    @Nullable
    public Item getItemDropped(IBlockState state, Random rand, int fortune)
    {
        return Item.getItemFromBlock(Blocks.FURNACE);
    }

    public void onBlockAdded(World worldIn, BlockPos pos, IBlockState state)
    {
        this.setDefaultFacing(worldIn, pos, state);
    }

    private void setDefaultFacing(World worldIn, BlockPos pos, IBlockState state)
    {
        if (!worldIn.isRemote)
        {
            IBlockState iblockstate = worldIn.getBlockState(pos.north());
            IBlockState iblockstate1 = worldIn.getBlockState(pos.south());
            IBlockState iblockstate2 = worldIn.getBlockState(pos.west());
            IBlockState iblockstate3 = worldIn.getBlockState(pos.east());
            EnumFacing enumfacing = (EnumFacing)state.getValue(FACING);

            if (enumfacing == EnumFacing.NORTH && iblockstate.isFullBlock() && !iblockstate1.isFullBlock())
            {
                enumfacing = EnumFacing.SOUTH;
            }
            else if (enumfacing == EnumFacing.SOUTH && iblockstate1.isFullBlock() && !iblockstate.isFullBlock())
            {
                enumfacing = EnumFacing.NORTH;
            }
            else if (enumfacing == EnumFacing.WEST && iblockstate2.isFullBlock() && !iblockstate3.isFullBlock())
            {
                enumfacing = EnumFacing.EAST;
            }
            else if (enumfacing == EnumFacing.EAST && iblockstate3.isFullBlock() && !iblockstate2.isFullBlock())
            {
                enumfacing = EnumFacing.WEST;
            }

            worldIn.setBlockState(pos, state.withProperty(FACING, enumfacing), 2);
        }
    }

    public static void setState(boolean active, World worldIn, BlockPos pos, BlockMachine workingBlock, BlockMachine notWorkingBlock)
    {
        IBlockState iblockstate = worldIn.getBlockState(pos);
        TileEntity tileentity = worldIn.getTileEntity(pos);
        keepInventory = true;

        if (active)
        {
            worldIn.setBlockState(pos, workingBlock.getDefaultState().withProperty(FACING, iblockstate.getValue(FACING)), 3);
            worldIn.setBlockState(pos, workingBlock.getDefaultState().withProperty(FACING, iblockstate.getValue(FACING)), 3);
        }
        else
        {
            worldIn.setBlockState(pos, notWorkingBlock.getDefaultState().withProperty(FACING, iblockstate.getValue(FACING)), 3);
            worldIn.setBlockState(pos, notWorkingBlock.getDefaultState().withProperty(FACING, iblockstate.getValue(FACING)), 3);
        }

        keepInventory = false;

        if (tileentity != null)
        {
            tileentity.validate();
            worldIn.setTileEntity(pos, tileentity);
        }
    }
    
    public IBlockState onBlockPlaced(World worldIn, BlockPos pos, EnumFacing facing, float hitX, float hitY, float hitZ, int meta, EntityLivingBase placer)
    {
        return this.getDefaultState().withProperty(FACING, placer.getHorizontalFacing().getOpposite());
    }

    public boolean hasComparatorInputOverride(IBlockState state)
    {
        return true;
    }

    public int getComparatorInputOverride(IBlockState blockState, World worldIn, BlockPos pos)
    {
        return Container.calcRedstone(worldIn.getTileEntity(pos));
    }

    public ItemStack getItem(World worldIn, BlockPos pos, IBlockState state, BlockMachine item)
    {
        return new ItemStack(item);
    }
    
    /**
     * The type of render function called. 3 for standard block models, 2 for TESR's, 1 for liquids, -1 is no render
     */
    public EnumBlockRenderType getRenderType(IBlockState state)
    {
        return EnumBlockRenderType.MODEL;
    }

    /**
     * Convert the given metadata into a BlockState for this Block
     */
    public IBlockState getStateFromMeta(int meta)
    {
        EnumFacing enumfacing = EnumFacing.getFront(meta);

        if (enumfacing.getAxis() == EnumFacing.Axis.Y)
        {
            enumfacing = EnumFacing.NORTH;
        }

        return this.getDefaultState().withProperty(FACING, enumfacing);
    }

    /**
     * Convert the BlockState into the correct metadata value
     */
    public int getMetaFromState(IBlockState state)
    {
        return ((EnumFacing)state.getValue(FACING)).getIndex();
    }

    /**
     * Returns the blockstate with the given rotation from the passed blockstate. If inapplicable, returns the passed
     * blockstate.
     */
    public IBlockState withRotation(IBlockState state, Rotation rot)
    {
        return state.withProperty(FACING, rot.rotate((EnumFacing)state.getValue(FACING)));
    }

    /**
     * Returns the blockstate with the given mirror of the passed blockstate. If inapplicable, returns the passed
     * blockstate.
     */
    public IBlockState withMirror(IBlockState state, Mirror mirrorIn)
    {
        return state.withRotation(mirrorIn.toRotation((EnumFacing)state.getValue(FACING)));
    }
    
    /*public IBlockState getActualState(IBlockState state, IBlockAccess world, BlockPos pos, int burningSlots)
    {
    	return getDefaultState().withProperty(burning_sides, burningSlots);
    }*/

    protected BlockStateContainer createBlockState()
    {
        return new BlockStateContainer(this, new IProperty[] {FACING});
    }
    
/*@Override
    public int getLightValue(IBlockAccess world, BlockPos pos)
    {
    	int lightValue = 0;
    	IBlockState state = getActualState(getDefaultState(), world, pos);
    	int burningSides = state.getValue(burning_sides).intValue();
    	
    	switch (burningSides)
    	{
		case 4:
			lightValue += (int)((four_side_light_value - three_side_light_value) / (4.0 - 3.0) * burningSides);
		case 3:
			lightValue += (int)((three_side_light_value - two_side_light_value) / (3.0 - 2.0) * burningSides);
		case 2:
			lightValue += (int)((two_side_light_value - one_side_light_value) / (2.0 - 1.0) * burningSides);
		case 1:
			lightValue += one_side_light_value;
			break;
		default:
			break;
    	}
    	
    	lightValue = MathHelper.clamp_int(lightValue, 0, four_side_light_value);
    	return lightValue;
    }*/

public EnumBlockRenderType renderType(IBlockState state)
{
	return EnumBlockRenderType.MODEL;
}
}

BlockFluxGrinder (the grinder itself)

package com.messy.core.blocks;

import javax.annotation.Nullable;

import com.messy.core.ModBlocks;
import com.messy.core.Reference;
import com.messy.core.gui.GuiHandlerFluxGrinder;
import com.messy.core.tileentities.TileEntityFluxGrinder;

import net.minecraft.block.material.Material;
import net.minecraft.block.properties.PropertyInteger;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.InventoryHelper;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.EnumHand;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.MathHelper;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;

public class BlockFluxGrinder extends BlockMachine 
{
public BlockFluxGrinder() 
{
	super("flux_grinder", "flux_grinder", Material.ROCK, false);
	//burning_sides = PropertyInteger.create("burning_sides", 0, 1);
	//one_side_light_value = 15;
}

public TileEntity createNewTileEntity(World worldIn, int meta)
{
	return new TileEntityFluxGrinder();
}

    public static void setState(boolean active, World worldIn, BlockPos pos)
    {
    	BlockMachine.setState(active, worldIn, pos, ModBlocks.FLUXGRINDERWORKING, ModBlocks.FLUXGRINDER);
    }

    public void onBlockPlacedBy(World worldIn, BlockPos pos, IBlockState state, EntityLivingBase placer, ItemStack stack)
    {
        worldIn.setBlockState(pos, state.withProperty(FACING, placer.getHorizontalFacing().getOpposite()), 2);

        if (stack.hasDisplayName())
        {
            TileEntity tileentity = worldIn.getTileEntity(pos);

            if (tileentity instanceof TileEntityFluxGrinder)
            {
                ((TileEntityFluxGrinder)tileentity).setCustomInventoryName(stack.getDisplayName());
            }
        }
    }

    public void breakBlock(World worldIn, BlockPos pos, IBlockState state)
    {
        if (!keepInventory)
        {
            TileEntity tileentity = worldIn.getTileEntity(pos);

            if (tileentity instanceof TileEntityFluxGrinder)
            {
                InventoryHelper.dropInventoryItems(worldIn, pos, (TileEntityFluxGrinder)tileentity);
                worldIn.updateComparatorOutputLevel(pos, this);
            }
        }

        super.breakBlock(worldIn, pos, state);
    }

    public ItemStack getItem(World worldIn, BlockPos pos, IBlockState state)
    {
        return super.getItem(worldIn, pos, state, ModBlocks.FLUXGRINDER); 
    }

    @Override
    public boolean onBlockActivated(World worldIn, BlockPos pos, IBlockState state, EntityPlayer playerIn, EnumHand hand, @Nullable ItemStack heldItem, EnumFacing side, float hitX, float hitY, float hitZ)
    {
       	if (worldIn.isRemote)
       	{
       		return true;
       	}
       	
       	playerIn.openGui(Reference.MOD_ID, GuiHandlerFluxGrinder.getGUIID(), worldIn, pos.getX(), pos.getY(), pos.getZ());
       	
       	return true;
    }
    
    /*@Override
    public IBlockState getActualState(IBlockState state, IBlockAccess world, BlockPos pos)
    {
    	TileEntityFluxGrinder te = (TileEntityFluxGrinder)world.getTileEntity(pos);
    	int burningSlots = te.numberOfBurningFuelSlots();
    	burningSlots = MathHelper.clamp_int(burningSlots, 0, 1);
    	return super.getActualState(state, world, pos, burningSlots);
    }*/
}

Animefan8888 · August 3, 2016

Well I don't know why it was returning null, but lets do some debugging here. Insert a if != null check and if it is print something in to the console.

Messorix · August 3, 2016

The new ModTileEntity doesn't give any console output

package com.messy.core.tileentities;

import java.util.Arrays;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagIntArray;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.network.NetworkManager;
import net.minecraft.network.Packet;
import net.minecraft.network.play.server.SPacketUpdateTileEntity;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.tileentity.TileEntityFurnace;
import net.minecraft.util.ITickable;
import net.minecraft.util.math.MathHelper;
import net.minecraft.util.text.ITextComponent;
import net.minecraft.util.text.TextComponentString;
import net.minecraft.util.text.TextComponentTranslation;
import net.minecraft.world.EnumSkyBlock;

public class ModTileEntity extends TileEntity implements IInventory, ITickable {
public static final int fuel_slots = 0;
public static final int input_slots = 0;
public static final int output_slots = 0;
public static int total_slots = fuel_slots + input_slots + output_slots;

public static final int first_fuel_slot = 0;
public static int first_input_slot = first_fuel_slot + input_slots;
public static int first_output_slot = first_input_slot + output_slots;

protected ItemStack[] itemStacks = new ItemStack[total_slots];

protected int[] burnTimeRemaining;
protected int[] burnTimeInitial;

protected short processTime;
protected static final short working_time_for_completion = 200;
protected int cachedNumberOfBurningSlots = -1;

public double fractionOfFuelRemaining(int fuelSlot) {
	double fraction;

	if (burnTimeRemaining != null)
	{
		System.out.print("burn time remaining is existing and set");
	}

	if (burnTimeInitial != null)
	{
		System.out.print("burn time initial is existing and set");
	}

	if (burnTimeInitial[fuelSlot] <= 0) {
		fraction = 0;
	} else {
		fraction = burnTimeRemaining[fuelSlot] / (double) burnTimeInitial[fuelSlot];
	}

	return MathHelper.clamp_double(fraction, 0.0, 1.0);
}

public int secondsOfFuelRemaining(int fuelSlot) {
	if (burnTimeRemaining[fuelSlot] <= 0) {
		return 0;
	}

	return burnTimeRemaining[fuelSlot] / 20;
}

public int numberOfBurningFuelSlots() {
	int burningCount = 0;

	if (burnTimeRemaining != null)
	{
		System.out.print("burn time remaining is existing and set");
	}

	for (int burnTime : burnTimeRemaining) {
		if (burnTime > 0) {
			++burningCount;
		}
	}

	return burningCount;
}

public double fractionOfProcessingTimeComplete() {
	double fraction = processTime / (double) working_time_for_completion;

	return MathHelper.clamp_double(fraction, 0.0, 1.0);
}

protected int burnFuel() {
	int burningCount = 0;
	boolean inventorychanged = false;

	for (int i = 0; i < fuel_slots; i++) {
		int fuelSlotNumber = i + first_fuel_slot;

		if (burnTimeRemaining[i] > 0) {
			--burnTimeRemaining[i];
			++burningCount;
		}

		if (burnTimeRemaining[i] == 0) {
			if (itemStacks[fuelSlotNumber] != null && getItemBurnTime(itemStacks[fuelSlotNumber]) > 0) {
				burnTimeRemaining[i] = burnTimeInitial[i] = getItemBurnTime(itemStacks[fuelSlotNumber]);
				--itemStacks[fuelSlotNumber].stackSize;
				++burningCount;
				inventorychanged = true;

				if (itemStacks[fuelSlotNumber].stackSize == 0) {
					itemStacks[fuelSlotNumber] = itemStacks[fuelSlotNumber].getItem()
							.getContainerItem(itemStacks[fuelSlotNumber]);
				}
			}
		}
	}

	if (inventorychanged) {
		markDirty();
	}

	return burningCount;
}

protected boolean canProcess() {
	return processItem(false);
}

protected void processItem() {
	processItem(true);
}

protected boolean processItem(boolean performProcess) {
	Integer firstSuitableInputSlot = null;
	Integer firstSuitableOutputSlot = null;
	ItemStack result = null;

	for (int inputSlot = first_input_slot; inputSlot < first_input_slot + input_slots; inputSlot++) {
		System.out.println("Input slot = " + inputSlot);

		if (itemStacks[inputSlot] != null) {
			result = getProcessingResultForItem(itemStacks[inputSlot]);

			if (result != null) {
				for (int outputSlot = first_output_slot; outputSlot < first_output_slot + output_slots; outputSlot++) {
					ItemStack outputStack = itemStacks[outputSlot];

					if (outputStack == null) {
						firstSuitableInputSlot = inputSlot;
						firstSuitableOutputSlot = outputSlot;
						break;
					}

					if (outputStack.getItem() == result.getItem() && (!outputStack.getHasSubtypes()
							|| outputStack.getMetadata() == outputStack.getMetadata()
									&& ItemStack.areItemStacksEqual(outputStack, result))) {
						int combinedSize = itemStacks[outputSlot].stackSize + result.stackSize;

						if (combinedSize <= getInventoryStackLimit()
								&& combinedSize <= itemStacks[outputSlot].getMaxStackSize()) {
							firstSuitableInputSlot = inputSlot;
							firstSuitableOutputSlot = outputSlot;
							break;
						}
					}
				}

				if (firstSuitableInputSlot != null) {
					break;
				}
			}
		}
	}

	if (firstSuitableInputSlot == null) {
		return false;
	}

	if (!performProcess) {
		return true;
	}

	itemStacks[firstSuitableInputSlot].stackSize--;

	if (itemStacks[firstSuitableInputSlot].stackSize <= 0) {
		itemStacks[firstSuitableInputSlot] = null;
	}

	if (itemStacks[firstSuitableOutputSlot] == null) {
		itemStacks[firstSuitableOutputSlot] = result.copy();
	} else {
		itemStacks[firstSuitableOutputSlot].stackSize += result.stackSize;
	}

	markDirty();
	return true;
}

public static short getItemBurnTime(ItemStack stack)
{
	int burnTime = TileEntityFurnace.getItemBurnTime(stack);
	return (short) MathHelper.clamp_int(burnTime, 0, Short.MAX_VALUE);
}

public static ItemStack getProcessingResultForItem(ItemStack stack){
	return stack;
}

@Override
public void update() {
	if (canProcess()) {
		int numberOfFuelBurning = burnFuel();

		if (numberOfFuelBurning > 0) {
			processTime += numberOfFuelBurning;
		} else {
			processTime -= 2;
		}

		if (processTime < 0) {
			processTime = 0;
		}

		if (processTime >= working_time_for_completion) {
			processItem();
			processTime = 0;
		}
	} else {
		processTime = 0;
	}

	int numberBurning = numberOfBurningFuelSlots();

	if (cachedNumberOfBurningSlots != numberBurning) {
		cachedNumberOfBurningSlots = numberBurning;

		if (worldObj.isRemote) {
			worldObj.markBlockRangeForRenderUpdate(pos, pos);
		}

		worldObj.checkLightFor(EnumSkyBlock.BLOCK, pos);
	}
}

@Override
public int getSizeInventory() {
	return itemStacks.length;
}

@Override
public ItemStack getStackInSlot(int index) {
	return itemStacks[index];
}

@Override
public ItemStack decrStackSize(int slotIndex, int count) {
	ItemStack itemStackInSlot = getStackInSlot(slotIndex);

	if (itemStackInSlot == null){
		return null;
	}

	ItemStack itemStackRemoved;

	if (itemStackInSlot.stackSize <= count)
	{
		itemStackRemoved = itemStackInSlot;
		setInventorySlotContents(slotIndex, null);
	}
	else
	{
		itemStackRemoved = itemStackInSlot.splitStack(count);

		if (itemStackInSlot.stackSize == 0)
		{
			setInventorySlotContents(slotIndex, null);
		}
	}

	markDirty();
	return itemStackRemoved;
}

@Override
public void setInventorySlotContents(int slotIndex, ItemStack stack) {
	itemStacks[slotIndex] = stack;

	if (stack != null && stack.stackSize > getInventoryStackLimit())
	{
		stack.stackSize = getInventoryStackLimit();
	}

	markDirty();
}

@Override
public int getInventoryStackLimit() {
	return 64;
}

@Override
public boolean isUseableByPlayer(EntityPlayer player) {
	if (this.worldObj.getTileEntity(this.pos) != this)
	{
		return false;
	}

	final double x_center_offset = 0.5;
	final double y_center_offset = 0.5;
	final double z_center_offset = 0.5;
	final double maximum_distance_sq = 8.0 * 8.0;

	return player.getDistanceSq(pos.getX() + x_center_offset, pos.getY() + y_center_offset, pos.getZ() + z_center_offset) < maximum_distance_sq;
}

public boolean isItemValidForFuelSlot(ItemStack stack) {
	return false;
}

public boolean isItemValidForInputSlot(ItemStack stack) {
	return false;
}

public boolean isItemValidForOutputSlot(ItemStack stack) {
	return false;
}

@Override
public NBTTagCompound writeToNBT(NBTTagCompound parentNBTTagCompound)
{
	super.writeToNBT(parentNBTTagCompound);

	NBTTagList dataForAllSlots = new NBTTagList();

	for (int i = 0; i < this.itemStacks.length; i++)
	{
		if (this.itemStacks[i] != null)
		{
			NBTTagCompound dataForThisSlot = new NBTTagCompound();
			dataForThisSlot.setByte("Slot", (byte)i);
			this.itemStacks[i].writeToNBT(dataForThisSlot);
			dataForAllSlots.appendTag(dataForThisSlot);
		}
	}

	parentNBTTagCompound.setTag("Items", dataForAllSlots);
	parentNBTTagCompound.setShort("ProcessTime", processTime);
	parentNBTTagCompound.setTag("BurnTimeRemaining", new NBTTagIntArray(burnTimeRemaining));
	parentNBTTagCompound.setTag("BurnTimeInitial", new NBTTagIntArray(burnTimeInitial));

	return parentNBTTagCompound;
}

@Override
public void readFromNBT(NBTTagCompound nbtTagCompound)
{
	super.readFromNBT(nbtTagCompound);

	final byte nbt_type_compound = 10;
	NBTTagList dataForAllSlots = nbtTagCompound.getTagList("Items", nbt_type_compound);
	Arrays.fill(itemStacks, null);

	for (int i = 0; i < dataForAllSlots.tagCount(); i++)
	{
		NBTTagCompound dataForOneSlot = dataForAllSlots.getCompoundTagAt(i);
		byte slotNumber = dataForOneSlot.getByte("Slot");

		if (slotNumber >= 0 && slotNumber < this.itemStacks.length)
		{
			this.itemStacks[slotNumber] = ItemStack.loadItemStackFromNBT(dataForOneSlot);
		}
	}

	processTime = nbtTagCompound.getShort("ProcessTime");
	burnTimeRemaining = Arrays.copyOf(nbtTagCompound.getIntArray("BurnTimeRemaining"), fuel_slots);
	burnTimeInitial = Arrays.copyOf(nbtTagCompound.getIntArray("BurnTimeInitial"), fuel_slots);
	cachedNumberOfBurningSlots = -1;
}

@SuppressWarnings("rawtypes")
public Packet getDescriptionPacket()
{
	NBTTagCompound nbtTagCompound = new NBTTagCompound();
	writeToNBT(nbtTagCompound);
	final int metadata = 0;
	return new SPacketUpdateTileEntity(this.pos, metadata, nbtTagCompound);
}

public void onDataPacket(NetworkManager net, SPacketUpdateTileEntity pkt)
{
	readFromNBT(pkt.getNbtCompound());
}

@Override
public void clear() {
	Arrays.fill(itemStacks, null);
}

@Override
public String getName() {
	return "Set this first";
}

@Override
public boolean hasCustomName() {
	return false;
}

public ITextComponent getDisplayName()
{
	return this.hasCustomName() ? new TextComponentString(this.getName()) : new TextComponentTranslation(this.getName());
}

private static final byte process_field_id = 0;
private static final byte first_burn_time_remaining_field_id = 1;
private static final byte first_burn_time_initial_field_id = first_burn_time_remaining_field_id + (byte)fuel_slots;
private static final byte number_of_fields = first_burn_time_initial_field_id + (byte)fuel_slots;

@Override
public int getField(int id) {
	if (id == process_field_id)
	{	
		return 0;
	}

	if (id >= first_burn_time_remaining_field_id && id < first_burn_time_remaining_field_id + (byte)fuel_slots)
	{
		return burnTimeRemaining[id - first_burn_time_remaining_field_id];
	}

	if (id >= first_burn_time_initial_field_id && id < first_burn_time_initial_field_id + (byte)fuel_slots)
	{
		return burnTimeInitial[id - first_burn_time_initial_field_id];
	}

	System.err.println("Invalid field ID in TileInventoryProcessing.getField: " + id);
	return 0;
}

@Override
public void setField(int id, int value) {
	if (id == process_field_id)
	{
		processTime = (short)value;
	}
	else if (id >= first_burn_time_remaining_field_id && id < first_burn_time_remaining_field_id + fuel_slots)
	{
		burnTimeRemaining[id - first_burn_time_remaining_field_id] = value;
	}
	else if (id >= first_burn_time_initial_field_id && id < first_burn_time_initial_field_id + fuel_slots)
	{
		burnTimeInitial[id - first_burn_time_initial_field_id] = value;
	}
	else
	{
		System.err.println("Invalid field ID in TileInventoryProcessing.getField: " + id);
	}
}

@Override
public int getFieldCount() {
	return number_of_fields;
}

@Override
public boolean isItemValidForSlot(int index, ItemStack stack) {
	return false;
}

@Override
public ItemStack removeStackFromSlot(int slotIndex) {
	ItemStack stack = getStackInSlot(slotIndex);

	if (stack != null)
	{
		setInventorySlotContents(slotIndex, null);
	}

	return stack;
}

@Override
public void openInventory(EntityPlayer player) {
	// TODO Auto-generated method stub

}

@Override
public void closeInventory(EntityPlayer player) {
	// TODO Auto-generated method stub

}
}

That means burnTimeRemaining == null, but I don't understand how...

Messorix · August 3, 2016

I changed my TileEntityFluxGrinder:

package com.messy.core.tileentities;

import com.messy.core.crafting.FluxGrinderRecipes;

import net.minecraft.item.ItemStack;

public class TileEntityFluxGrinder extends ModTileEntity
{
private static boolean setupDone = false; 
public static final int fuel_slots = 1;
public static final int input_slots = 2;
public static final int output_slots = 1;

protected ItemStack[] itemStacks = new ItemStack[total_slots];

public static ItemStack getProcessingResultForItem(ItemStack stack){
	return ModTileEntity.getProcessingResultForItem(FluxGrinderRecipes.instance().getGrindingResult(stack));
}

@Override
public String getName() {
	return "container.tile_entity_flux_grinder.name";
}

public double fractionOfFuelRemaining(int fuelSlot) {
	setup();
	return super.fractionOfFuelRemaining(fuelSlot);
}

public int secondsOfFuelRemaining(int fuelSlot) {
	setup();
	return super.secondsOfFuelRemaining(fuelSlot);
}

public int numberOfBurningFuelSlots() {
	setup();
	return super.numberOfBurningFuelSlots();
}

public void setCustomInventoryName(String displayName) {
}

private void setup()
{
	if (!setupDone)
	{
		total_slots = fuel_slots + input_slots + output_slots;
		first_input_slot = first_fuel_slot + input_slots;
		first_output_slot = first_input_slot + output_slots;
		burnTimeInitial = new int[fuel_slots];
		burnTimeRemaining = new int[fuel_slots];

		setupDone = true;
	}
}
}

Somehow I get to see the output in the console yet have this crashlog:

---- Minecraft Crash Report ----

// Don't be sad, have a hug! <3

Time: 8/3/16 1:29 PM

Description: Rendering screen

java.lang.NullPointerException: Rendering screen

at com.messy.core.tileentities.ModTileEntity.fractionOfFuelRemaining(ModTileEntity.java:55)

at com.messy.core.tileentities.TileEntityFluxGrinder.fractionOfFuelRemaining(TileEntityFluxGrinder.java:27)

at com.messy.core.gui.GuiFluxGrinder.drawGuiContainerBackgroundLayer(GuiFluxGrinder.java:70)

at net.minecraft.client.gui.inventory.GuiContainer.drawScreen(GuiContainer.java:94)

at net.minecraftforge.client.ForgeHooksClient.drawScreen(ForgeHooksClient.java:374)

at net.minecraft.client.renderer.EntityRenderer.updateCameraAndRender(EntityRenderer.java:1147)

at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1139)

at net.minecraft.client.Minecraft.run(Minecraft.java:406)

at net.minecraft.client.main.Main.main(Main.java:118)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)

at GradleStart.main(GradleStart.java:26)

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

---------------------------------------------------------------------------------------

-- Head --

Thread: Client thread

Stacktrace:

at com.messy.core.tileentities.ModTileEntity.fractionOfFuelRemaining(ModTileEntity.java:55)

at com.messy.core.tileentities.TileEntityFluxGrinder.fractionOfFuelRemaining(TileEntityFluxGrinder.java:27)

at com.messy.core.gui.GuiFluxGrinder.drawGuiContainerBackgroundLayer(GuiFluxGrinder.java:70)

at net.minecraft.client.gui.inventory.GuiContainer.drawScreen(GuiContainer.java:94)

at net.minecraftforge.client.ForgeHooksClient.drawScreen(ForgeHooksClient.java:374)

-- Screen render details --

Details:

Screen name: com.messy.core.gui.GuiFluxGrinder

Mouse location: Scaled: (213, 119). Absolute: (427, 240)

Screen size: Scaled: (427, 240). Absolute: (854, 480). Scale factor of 2

-- Affected level --

Details:

Level name: MpServer

All players: 1 total; [EntityPlayerSP['Messorix'/346, l='MpServer', x=3.70, y=68.00, z=1.64]]

Chunk stats: MultiplayerChunkCache: 505, 505

Level seed: 0

Level generator: ID 00 - default, ver 1. Features enabled: false

Level generator options:

Level spawn location: World: (8,64,, Chunk: (at 8,4,8 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)

Level time: 50471 game time, 5863 day time

Level dimension: 0

Level storage version: 0x00000 - Unknown?

Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)

Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false

Forced entities: 117 total; [EntityHorse['Horse'/257, l='MpServer', x=80.06, y=87.00, z=77.50], EntityHorse['Horse'/62, l='MpServer', x=-74.96, y=72.00, z=-22.45], EntityCreeper['Creeper'/63, l='MpServer', x=-68.32, y=17.00, z=-8.43], EntityCreeper['Creeper'/64, l='MpServer', x=-73.46, y=17.00, z=-9.74], EntityCreeper['Creeper'/65, l='MpServer', x=-73.50, y=17.00, z=-8.50], EntitySkeleton['Skeleton'/66, l='MpServer', x=-73.66, y=18.00, z=-4.78], EntitySkeleton['Skeleton'/67, l='MpServer', x=-72.48, y=18.00, z=-11.27], EntityZombie['Zombie'/68, l='MpServer', x=-74.25, y=17.00, z=-8.47], EntityHorse['Horse'/69, l='MpServer', x=-68.66, y=73.00, z=-6.86], EntityHorse['Horse'/70, l='MpServer', x=-65.79, y=73.00, z=-11.44], EntityBat['Bat'/72, l='MpServer', x=-69.30, y=35.10, z=52.39], EntityCreeper['Creeper'/78, l='MpServer', x=-58.50, y=26.00, z=-56.50], EntityCreeper['Creeper'/79, l='MpServer', x=-57.50, y=26.00, z=-59.50], EntitySpider['Spider'/80, l='MpServer', x=-58.95, y=51.00, z=-61.99], EntityHorse['Horse'/81, l='MpServer', x=-60.97, y=70.00, z=-25.85], EntitySkeleton['Skeleton'/82, l='MpServer', x=-57.50, y=21.00, z=15.50], EntitySpider['Spider'/83, l='MpServer', x=-54.24, y=73.00, z=19.62], EntityPlayerSP['Messorix'/346, l='MpServer', x=3.70, y=68.00, z=1.64], EntitySkeleton['Skeleton'/97, l='MpServer', x=-38.26, y=27.00, z=-48.46], EntityRabbit['Rabbit'/98, l='MpServer', x=-42.06, y=74.00, z=-52.87], EntityZombie['Zombie'/99, l='MpServer', x=-49.48, y=22.00, z=-48.04], EntityRabbit['Rabbit'/100, l='MpServer', x=-37.52, y=74.00, z=-46.24], EntityHorse['Horse'/101, l='MpServer', x=-37.58, y=75.00, z=-41.45], EntitySquid['Squid'/102, l='MpServer', x=-38.60, y=62.47, z=-14.10], EntityBat['Bat'/103, l='MpServer', x=-27.79, y=25.03, z=6.56], EntityHorse['Donkey'/104, l='MpServer', x=-40.01, y=72.00, z=43.01], EntityHorse['Horse'/105, l='MpServer', x=-37.90, y=90.00, z=55.01], EntityHorse['Horse'/106, l='MpServer', x=-43.57, y=91.00, z=64.33], EntityHorse['Horse'/107, l='MpServer', x=-38.11, y=88.00, z=67.42], EntityHorse['Horse'/108, l='MpServer', x=-46.98, y=88.00, z=70.99], EntityBat['Bat'/112, l='MpServer', x=-18.25, y=14.10, z=-58.41], EntityHorse['Horse'/113, l='MpServer', x=-20.90, y=74.00, z=-53.29], EntityHorse['Horse'/114, l='MpServer', x=-29.68, y=75.00, z=-33.89], EntityRabbit['Rabbit'/115, l='MpServer', x=-30.48, y=74.00, z=-30.27], EntitySkeleton['Skeleton'/116, l='MpServer', x=-18.49, y=13.00, z=-0.24], EntityHorse['Donkey'/117, l='MpServer', x=-19.84, y=69.00, z=36.62], EntityHorse['Donkey'/118, l='MpServer', x=-17.28, y=69.00, z=39.72], EntityZombie['Zombie'/119, l='MpServer', x=-23.50, y=26.00, z=69.50], EntityRabbit['Rabbit'/127, l='MpServer', x=-11.02, y=71.00, z=-67.49], EntityRabbit['Rabbit'/128, l='MpServer', x=-13.39, y=71.00, z=-74.93], EntityRabbit['Rabbit'/129, l='MpServer', x=-1.44, y=76.00, z=-42.54], EntityHorse['Horse'/130, l='MpServer', x=-15.79, y=74.00, z=-35.97], EntityBat['Bat'/131, l='MpServer', x=-6.04, y=28.10, z=18.50], EntityHorse['Donkey'/132, l='MpServer', x=-15.86, y=70.00, z=29.01], EntitySkeleton['Skeleton'/133, l='MpServer', x=-9.50, y=20.00, z=39.50], EntityHorse['Donkey'/134, l='MpServer', x=-11.82, y=68.00, z=36.56], EntityCreeper['Creeper'/135, l='MpServer', x=-0.50, y=32.00, z=58.50], EntitySkeleton['Skeleton'/141, l='MpServer', x=7.51, y=41.00, z=-74.33], EntityCreeper['Creeper'/142, l='MpServer', x=-0.82, y=44.25, z=-69.46], EntityCreeper['Creeper'/143, l='MpServer', x=15.50, y=42.00, z=-66.50], EntityBat['Bat'/144, l='MpServer', x=0.83, y=36.10, z=-64.84], EntityZombie['Zombie'/145, l='MpServer', x=4.36, y=43.00, z=-66.51], EntityBat['Bat'/146, l='MpServer', x=8.75, y=35.10, z=-64.25], EntityHorse['Horse'/147, l='MpServer', x=6.59, y=67.00, z=-71.01], EntitySkeleton['Skeleton'/148, l='MpServer', x=15.50, y=42.00, z=-63.50], EntityBat['Bat'/149, l='MpServer', x=5.95, y=31.10, z=5.73], EntityBat['Bat'/150, l='MpServer', x=14.22, y=73.94, z=65.30], EntitySkeleton['Skeleton'/163, l='MpServer', x=24.40, y=17.00, z=-65.46], EntitySkeleton['Skeleton'/164, l='MpServer', x=22.24, y=37.00, z=-65.18], EntitySkeleton['Skeleton'/165, l='MpServer', x=24.29, y=18.00, z=-55.49], EntityCreeper['Creeper'/166, l='MpServer', x=31.52, y=28.00, z=-62.02], EntityZombie['Zombie'/167, l='MpServer', x=29.60, y=34.00, z=-42.08], EntityCreeper['Creeper'/168, l='MpServer', x=28.81, y=30.00, z=-22.54], EntityCreeper['Creeper'/169, l='MpServer', x=23.79, y=31.00, z=-24.48], EntityCreeper['Creeper'/170, l='MpServer', x=30.39, y=16.00, z=-25.51], EntityEnderman['Enderman'/171, l='MpServer', x=18.86, y=31.00, z=-19.50], EntityCreeper['Creeper'/172, l='MpServer', x=27.34, y=32.00, z=-27.44], EntityBat['Bat'/173, l='MpServer', x=26.46, y=32.10, z=-18.03], EntityEnderman['Enderman'/174, l='MpServer', x=25.85, y=32.00, z=-28.95], EntityHorse['Horse'/175, l='MpServer', x=27.02, y=66.00, z=47.85], EntityZombie['Zombie'/188, l='MpServer', x=30.53, y=11.00, z=-41.55], EntitySkeleton['Skeleton'/189, l='MpServer', x=39.50, y=15.00, z=-29.50], EntitySkeleton['Skeleton'/190, l='MpServer', x=41.50, y=15.00, z=-27.50], EntityBat['Bat'/191, l='MpServer', x=35.75, y=18.10, z=-22.25], EntityHorse['Horse'/192, l='MpServer', x=36.68, y=95.00, z=-30.64], EntityPig['Pig'/193, l='MpServer', x=37.45, y=95.00, z=-24.68], EntityHorse['Horse'/194, l='MpServer', x=33.18, y=93.00, z=-20.99], EntityHorse['Horse'/195, l='MpServer', x=44.41, y=82.00, z=25.10], EntityHorse['Horse'/196, l='MpServer', x=41.06, y=71.00, z=36.00], EntityCreeper['Creeper'/208, l='MpServer', x=60.77, y=21.00, z=-38.53], EntityCow['Cow'/209, l='MpServer', x=55.06, y=95.00, z=-44.60], EntityPig['Pig'/210, l='MpServer', x=66.28, y=93.00, z=-19.69], EntityHorse['Horse'/211, l='MpServer', x=54.30, y=95.00, z=-6.13], EntityHorse['Donkey'/212, l='MpServer', x=56.03, y=95.00, z=-4.11], EntityHorse['Horse'/213, l='MpServer', x=50.58, y=92.00, z=2.94], EntityPig['Pig'/214, l='MpServer', x=61.58, y=93.00, z=0.05], EntityPig['Pig'/215, l='MpServer', x=63.50, y=93.00, z=16.25], EntityPig['Pig'/216, l='MpServer', x=61.30, y=93.00, z=25.50], EntityHorse['Donkey'/217, l='MpServer', x=51.54, y=92.00, z=58.64], EntityHorse['Horse'/218, l='MpServer', x=52.79, y=92.00, z=57.23], EntityHorse['Horse'/219, l='MpServer', x=54.01, y=89.00, z=74.80], EntitySkeleton['Skeleton'/223, l='MpServer', x=69.08, y=49.00, z=-70.41], EntitySkeleton['Skeleton'/224, l='MpServer', x=79.58, y=50.00, z=-66.73], EntityCow['Cow'/225, l='MpServer', x=68.56, y=90.00, z=-72.61], EntityCreeper['Creeper'/226, l='MpServer', x=77.66, y=21.00, z=-51.90], EntityCreeper['Creeper'/227, l='MpServer', x=72.55, y=45.00, z=-47.82], EntityCow['Cow'/228, l='MpServer', x=71.09, y=96.00, z=-48.51], EntityZombie['Zombie'/229, l='MpServer', x=75.23, y=79.00, z=-35.45], EntityPig['Pig'/230, l='MpServer', x=74.11, y=93.00, z=-34.64], EntityZombie['Zombie'/231, l='MpServer', x=65.71, y=84.00, z=-38.55], EntityPig['Pig'/232, l='MpServer', x=67.68, y=96.00, z=-45.29], EntityPig['Pig'/233, l='MpServer', x=75.51, y=97.00, z=-45.71], EntitySkeleton['Skeleton'/234, l='MpServer', x=70.50, y=25.00, z=-16.21], EntityBat['Bat'/235, l='MpServer', x=60.01, y=43.93, z=-25.45], EntityCreeper['Creeper'/236, l='MpServer', x=78.35, y=52.00, z=-23.50], EntityCreeper['Creeper'/237, l='MpServer', x=65.57, y=84.00, z=-30.77], EntityHorse['Horse'/238, l='MpServer', x=66.33, y=96.00, z=-27.40], EntityHorse['Horse'/239, l='MpServer', x=77.94, y=88.00, z=-9.86], EntityPig['Pig'/240, l='MpServer', x=68.45, y=89.00, z=30.45], EntityPig['Pig'/241, l='MpServer', x=65.57, y=91.00, z=19.60], EntityHorse['Donkey'/242, l='MpServer', x=64.40, y=90.00, z=28.60], EntityHorse['Donkey'/243, l='MpServer', x=65.30, y=91.00, z=52.03], EntityHorse['Horse'/244, l='MpServer', x=75.43, y=88.00, z=49.27], EntityHorse['Horse'/245, l='MpServer', x=73.89, y=86.00, z=77.00], EntityZombie['Zombie'/249, l='MpServer', x=80.40, y=51.00, z=-60.01], EntityBat['Bat'/252, l='MpServer', x=80.51, y=27.10, z=-6.28], EntityZombie['Zombie'/254, l='MpServer', x=80.21, y=24.00, z=-13.40]]

Retry entities: 0 total; []

Server brand: fml,forge

Server type: Integrated singleplayer server

Stacktrace:

at net.minecraft.client.multiplayer.WorldClient.addWorldInfoToCrashReport(WorldClient.java:450)

at net.minecraft.client.Minecraft.addGraphicsAndWorldToCrashReport(Minecraft.java:2779)

at net.minecraft.client.Minecraft.run(Minecraft.java:427)

at net.minecraft.client.main.Main.main(Main.java:118)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)

at GradleStart.main(GradleStart.java:26)

-- System Details --

Details:

Minecraft Version: 1.10.2

Operating System: Windows 8.1 (amd64) version 6.3

Java Version: 1.8.0_102, Oracle Corporation

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation

Memory: 565049304 bytes (538 MB) / 1689780224 bytes (1611 MB) up to 7635730432 bytes (7282 MB)

JVM Flags: 2 total; -Xmx8g -Xms256m

IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95

FML: MCP 9.32 Powered by Forge 12.18.1.2011 6 mods loaded, 6 mods active

States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

UCHIJAAAA mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)

UCHIJAAAA FML{8.0.99.99} [Forge Mod Loader] (forgeSrc-1.10.2-12.18.1.2011.jar)

UCHIJAAAA Forge{12.18.1.2011} [Minecraft Forge] (forgeSrc-1.10.2-12.18.1.2011.jar)

UCHIJAAAA messycore{0.0.1} [Messy: Core] (bin)

UCHIJAAAA examplemod{1.0} [Example Mod] (bin)

UCHIJAAAA JEI{3.7.6.232} [Just Enough Items] (jei_1.10.2-3.7.6.232.jar)

Loaded coremods (and transformers):

GL info: ' Vendor: 'ATI Technologies Inc.' Version: '4.5.13431 Compatibility Profile Context 16.150.2211.0' Renderer: 'AMD Radeon HD 7900 Series'

Launched Version: 1.10.2

LWJGL: 2.9.4

OpenGL: AMD Radeon HD 7900 Series GL version 4.5.13431 Compatibility Profile Context 16.150.2211.0, ATI Technologies Inc.

GL Caps: Using GL 1.3 multitexturing.

Using GL 1.3 texture combiners.

Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.

Shaders are available because OpenGL 2.1 is supported.

VBOs are available because OpenGL 1.5 is supported.

Using VBOs: Yes

Is Modded: Definitely; Client brand changed to 'fml,forge'

Type: Client (map_client.txt)

Resource Packs:

Current Language: English (US)

Profiler Position: N/A (disabled)

CPU: 4x Intel® Core i5-3570K CPU @ 3.40GHz

Animefan8888 · August 3, 2016

Are you getting "burn time initial is existing and set" printed out into your console?

Messorix · August 3, 2016

More than once

Which makes it even more difficult to pinpoint what it exactly is

Animefan8888 · August 3, 2016

Line 55 of ModTileEntity?

Messorix · August 3, 2016

Together with a friend I have finally set up my git so the whole this can be found here

Draco18s · August 3, 2016

public class TileEntityFluxGrinder extends ModTileEntity
{
public static final int fuel_slots = 1;
public static final int input_slots = 2;
public static final int output_slots = 1;

Are you sure?

These are different fields, they don't refer to the same ones at all. Whatever you think you've done with these fields you have in fact, not done.

Your problem though is the fact that you never initialize burnTimeInitial to anything. You helpfully check to see if it's not null and print "yep, it's not null!" but it is null, so the program crashes.

Messorix · August 3, 2016

After some changes (and troubles with git) I still get this error though

---- Minecraft Crash Report ----

// My bad.

Time: 8/3/16 6:16 PM

Description: Rendering screen

java.lang.NullPointerException: Rendering screen

at com.messorix.moleculecraft.base.tileentities.ModTileEntity.fractionOfFuelRemaining(ModTileEntity.java:55)

at com.messorix.moleculecraft.base.gui.GuiFluxGrinder.drawGuiContainerBackgroundLayer(GuiFluxGrinder.java:70)

at net.minecraft.client.gui.inventory.GuiContainer.drawScreen(GuiContainer.java:94)

at net.minecraftforge.client.ForgeHooksClient.drawScreen(ForgeHooksClient.java:374)

at net.minecraft.client.renderer.EntityRenderer.updateCameraAndRender(EntityRenderer.java:1147)

at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1139)

at net.minecraft.client.Minecraft.run(Minecraft.java:406)

at net.minecraft.client.main.Main.main(Main.java:118)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)

at GradleStart.main(GradleStart.java:26)

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

---------------------------------------------------------------------------------------

-- Head --

Thread: Client thread

Stacktrace:

at com.messorix.moleculecraft.base.tileentities.ModTileEntity.fractionOfFuelRemaining(ModTileEntity.java:55)

at com.messorix.moleculecraft.base.gui.GuiFluxGrinder.drawGuiContainerBackgroundLayer(GuiFluxGrinder.java:70)

at net.minecraft.client.gui.inventory.GuiContainer.drawScreen(GuiContainer.java:94)

at net.minecraftforge.client.ForgeHooksClient.drawScreen(ForgeHooksClient.java:374)

-- Screen render details --

Details:

Screen name: com.messorix.moleculecraft.base.gui.GuiFluxGrinder

Mouse location: Scaled: (480, 254). Absolute: (960, 508)

Screen size: Scaled: (960, 509). Absolute: (1920, 1017). Scale factor of 2

-- Affected level --

Details:

Level name: MpServer

All players: 1 total; [EntityPlayerSP['Messorix'/350, l='MpServer', x=3.69, y=68.00, z=1.59]]

Chunk stats: MultiplayerChunkCache: 505, 505

Level seed: 0

Level generator: ID 00 - default, ver 1. Features enabled: false

Level generator options:

Level spawn location: World: (8,64,, Chunk: (at 8,4,8 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)

Level time: 56364 game time, 11756 day time

Level dimension: 0

Level storage version: 0x00000 - Unknown?

Level weather: Rain time: 0 (now: true), thunder time: 0 (now: false)

Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false

Forced entities: 116 total; [EntityHorse['Horse'/256, l='MpServer', x=70.13, y=88.00, z=72.08], EntityPig['Pig'/263, l='MpServer', x=80.41, y=94.00, z=-43.23], EntityPig['Pig'/264, l='MpServer', x=82.73, y=95.00, z=-21.56], EntityHorse['Horse'/266, l='MpServer', x=80.91, y=87.00, z=79.13], EntityHorse['Horse'/69, l='MpServer', x=-66.88, y=71.00, z=-23.99], EntityHorse['Horse'/72, l='MpServer', x=-69.15, y=73.00, z=-8.93], EntityBat['Bat'/78, l='MpServer', x=-48.70, y=46.02, z=-69.25], EntityRabbit['Rabbit'/79, l='MpServer', x=-48.31, y=74.00, z=-56.32], EntityItem['item.item.dyePowder.black'/80, l='MpServer', x=-55.71, y=55.00, z=-25.13], EntityHorse['Horse'/81, l='MpServer', x=-54.73, y=69.00, z=-20.36], EntityBat['Bat'/82, l='MpServer', x=-60.44, y=21.03, z=-4.29], EntitySkeleton['Skeleton'/83, l='MpServer', x=-57.50, y=21.00, z=20.21], EntityCreeper['Creeper'/84, l='MpServer', x=-58.50, y=21.00, z=24.50], EntitySkeleton['Skeleton'/94, l='MpServer', x=-37.50, y=49.00, z=-73.50], EntityPlayerSP['Messorix'/350, l='MpServer', x=3.69, y=68.00, z=1.59], EntityRabbit['Rabbit'/95, l='MpServer', x=-40.50, y=74.00, z=-46.49], EntityHorse['Horse'/96, l='MpServer', x=-40.99, y=74.00, z=-40.13], EntityRabbit['Rabbit'/97, l='MpServer', x=-33.06, y=75.00, z=-34.79], EntityHorse['Donkey'/98, l='MpServer', x=-40.01, y=73.00, z=43.36], EntityHorse['Horse'/99, l='MpServer', x=-43.88, y=92.00, z=61.90], EntityHorse['Horse'/100, l='MpServer', x=-46.16, y=92.00, z=62.14], EntityHorse['Horse'/101, l='MpServer', x=-40.18, y=87.00, z=80.58], EntityBat['Bat'/111, l='MpServer', x=-30.64, y=48.61, z=-58.43], EntityHorse['Horse'/112, l='MpServer', x=-31.58, y=74.00, z=-40.37], EntityHorse['Horse'/113, l='MpServer', x=-24.00, y=74.00, z=-50.36], EntitySquid['Squid'/114, l='MpServer', x=-19.56, y=62.58, z=18.02], EntitySquid['Squid'/115, l='MpServer', x=-22.34, y=61.18, z=13.95], EntityHorse['Donkey'/116, l='MpServer', x=-16.68, y=69.00, z=42.78], EntityHorse['Horse'/117, l='MpServer', x=-31.26, y=87.00, z=63.14], EntityCreeper['Creeper'/128, l='MpServer', x=-0.57, y=44.00, z=-72.76], EntityRabbit['Rabbit'/129, l='MpServer', x=-8.49, y=71.00, z=-70.10], EntityRabbit['Rabbit'/130, l='MpServer', x=-11.89, y=71.00, z=-75.93], EntityRabbit['Rabbit'/131, l='MpServer', x=-3.75, y=75.00, z=-36.13], EntityHorse['Horse'/132, l='MpServer', x=-12.47, y=76.00, z=-41.53], EntitySpider['Spider'/133, l='MpServer', x=-9.50, y=12.00, z=10.50], EntitySquid['Squid'/134, l='MpServer', x=-15.06, y=61.12, z=6.42], EntitySkeleton['Skeleton'/135, l='MpServer', x=-5.71, y=21.00, z=28.55], EntityHorse['Donkey'/136, l='MpServer', x=-15.41, y=70.00, z=29.97], EntityHorse['Donkey'/137, l='MpServer', x=-1.07, y=66.00, z=39.99], EntityHorse['Donkey'/138, l='MpServer', x=-14.00, y=69.00, z=31.80], EntitySkeleton['Skeleton'/148, l='MpServer', x=9.80, y=44.00, z=-66.50], EntityHorse['Horse'/149, l='MpServer', x=8.15, y=68.00, z=-71.01], EntityZombie['Zombie'/150, l='MpServer', x=15.50, y=27.00, z=-2.50], EntityCreeper['Creeper'/151, l='MpServer', x=10.81, y=32.00, z=-2.58], EntityZombie['Zombie'/152, l='MpServer', x=10.50, y=30.00, z=3.50], EntityZombie['Zombie'/153, l='MpServer', x=10.50, y=29.00, z=8.50], EntityEnderman['Enderman'/154, l='MpServer', x=8.48, y=30.00, z=13.29], EntitySkeleton['Skeleton'/155, l='MpServer', x=9.50, y=28.00, z=41.50], EntityCreeper['Creeper'/162, l='MpServer', x=30.60, y=27.00, z=-64.77], EntitySkeleton['Skeleton'/163, l='MpServer', x=19.50, y=26.00, z=-64.50], EntityBat['Bat'/165, l='MpServer', x=23.75, y=28.10, z=-66.50], EntityZombie['Zombie'/166, l='MpServer', x=30.50, y=30.00, z=-54.50], EntitySkeleton['Skeleton'/167, l='MpServer', x=26.50, y=29.00, z=-58.79], EntityBat['Bat'/168, l='MpServer', x=25.14, y=10.61, z=-47.25], EntityBat['Bat'/169, l='MpServer', x=19.96, y=17.08, z=-53.87], EntityBat['Bat'/170, l='MpServer', x=19.25, y=14.81, z=-51.50], EntityZombie['Zombie'/171, l='MpServer', x=24.82, y=31.00, z=-44.48], EntityCreeper['Creeper'/172, l='MpServer', x=23.50, y=25.00, z=-16.50], EntityZombie['Zombie'/173, l='MpServer', x=23.50, y=25.00, z=-16.50], EntityBat['Bat'/174, l='MpServer', x=16.77, y=25.69, z=-12.45], EntityBat['Bat'/175, l='MpServer', x=38.04, y=31.74, z=47.93], EntityHorse['Horse'/176, l='MpServer', x=26.99, y=66.00, z=49.41], EntityZombie['Zombie'/190, l='MpServer', x=37.49, y=28.00, z=-66.19], EntitySkeleton['Skeleton'/191, l='MpServer', x=44.50, y=57.00, z=-64.50], EntityBat['Bat'/192, l='MpServer', x=43.65, y=36.94, z=-50.23], EntityZombie['Zombie'/193, l='MpServer', x=30.54, y=32.00, z=-44.75], EntityZombie['Zombie'/194, l='MpServer', x=32.70, y=33.00, z=-45.34], EntityBat['Bat'/195, l='MpServer', x=41.97, y=17.10, z=-22.50], EntityBat['Bat'/196, l='MpServer', x=39.75, y=18.10, z=-24.25], EntityPig['Pig'/197, l='MpServer', x=36.56, y=94.00, z=-21.40], EntityHorse['Horse'/198, l='MpServer', x=53.15, y=95.00, z=-38.32], EntityPig['Pig'/199, l='MpServer', x=47.43, y=95.00, z=-17.78], EntitySpider['Spider'/200, l='MpServer', x=35.97, y=31.00, z=-15.46], EntityHorse['Horse'/201, l='MpServer', x=44.96, y=79.00, z=26.89], EntityHorse['Horse'/202, l='MpServer', x=46.93, y=72.00, z=38.76], EntitySkeleton['Skeleton'/212, l='MpServer', x=50.50, y=16.00, z=-70.50], EntityCreeper['Creeper'/213, l='MpServer', x=53.29, y=56.00, z=-67.15], EntitySkeleton['Skeleton'/214, l='MpServer', x=59.50, y=23.00, z=-51.50], EntityBat['Bat'/215, l='MpServer', x=60.40, y=24.51, z=-49.46], EntityCreeper['Creeper'/216, l='MpServer', x=56.50, y=56.00, z=-61.50], EntityCreeper['Creeper'/217, l='MpServer', x=56.50, y=56.00, z=-63.50], EntityCreeper['Creeper'/218, l='MpServer', x=57.50, y=56.00, z=-60.50], EntityZombie['Zombie'/219, l='MpServer', x=56.30, y=27.63, z=-36.70], EntityBat['Bat'/220, l='MpServer', x=61.50, y=41.00, z=-34.58], EntityCow['Cow'/221, l='MpServer', x=54.95, y=95.00, z=-46.57], EntityCreeper['Creeper'/222, l='MpServer', x=59.59, y=85.00, z=-41.17], EntityPig['Pig'/223, l='MpServer', x=52.50, y=92.00, z=-44.67], EntityHorse['Horse'/224, l='MpServer', x=49.79, y=96.00, z=-35.66], EntityCow['Cow'/225, l='MpServer', x=57.85, y=95.00, z=-49.48], EntitySkeleton['Skeleton'/226, l='MpServer', x=55.30, y=11.01, z=-20.30], EntityBat['Bat'/227, l='MpServer', x=60.09, y=13.05, z=-19.34], EntityHorse['Horse'/228, l='MpServer', x=56.14, y=95.00, z=-4.99], EntityBat['Bat'/229, l='MpServer', x=65.75, y=13.76, z=15.25], EntityHorse['Donkey'/230, l='MpServer', x=59.28, y=94.00, z=2.10], EntityHorse['Horse'/231, l='MpServer', x=56.17, y=95.00, z=8.78], EntityPig['Pig'/232, l='MpServer', x=60.26, y=91.00, z=28.51], EntityHorse['Donkey'/233, l='MpServer', x=64.95, y=91.00, z=51.22], EntityHorse['Horse'/234, l='MpServer', x=56.77, y=94.00, z=55.03], EntitySkeleton['Skeleton'/235, l='MpServer', x=60.50, y=18.00, z=76.50], EntityZombie['Zombie'/236, l='MpServer', x=54.50, y=21.00, z=78.50], EntityHorse['Horse'/237, l='MpServer', x=50.10, y=88.00, z=74.95], EntityZombie['Zombie'/241, l='MpServer', x=65.50, y=49.00, z=-65.50], EntityPig['Pig'/242, l='MpServer', x=74.49, y=93.00, z=-34.78], EntityPig['Pig'/243, l='MpServer', x=69.74, y=88.00, z=-33.54], EntityHorse['Horse'/244, l='MpServer', x=78.88, y=95.00, z=-38.02], EntityZombie['Zombie'/245, l='MpServer', x=77.18, y=22.00, z=-28.60], EntityZombie['Zombie'/246, l='MpServer', x=74.95, y=20.00, z=-28.30], EntityHorse['Horse'/247, l='MpServer', x=78.55, y=94.00, z=-16.48], EntityPig['Pig'/248, l='MpServer', x=71.69, y=94.00, z=-16.48], EntitySkeleton['Skeleton'/249, l='MpServer', x=73.50, y=23.00, z=-10.50], EntityPig['Pig'/250, l='MpServer', x=60.39, y=94.00, z=8.53], EntityPig['Pig'/251, l='MpServer', x=76.25, y=91.00, z=16.50], EntityHorse['Donkey'/252, l='MpServer', x=69.62, y=90.00, z=27.16], EntityPig['Pig'/253, l='MpServer', x=69.24, y=91.00, z=17.79], EntityHorse['Horse'/254, l='MpServer', x=74.86, y=89.00, z=46.93], EntityHorse['Donkey'/255, l='MpServer', x=64.18, y=93.00, z=56.40]]

Retry entities: 0 total; []

Server brand: fml,forge

Server type: Integrated singleplayer server

Stacktrace:

at net.minecraft.client.multiplayer.WorldClient.addWorldInfoToCrashReport(WorldClient.java:450)

at net.minecraft.client.Minecraft.addGraphicsAndWorldToCrashReport(Minecraft.java:2779)

at net.minecraft.client.Minecraft.run(Minecraft.java:427)

at net.minecraft.client.main.Main.main(Main.java:118)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)

at GradleStart.main(GradleStart.java:26)

-- System Details --

Details:

Minecraft Version: 1.10.2

Operating System: Windows 8.1 (amd64) version 6.3

Java Version: 1.8.0_102, Oracle Corporation

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation

Memory: 429189112 bytes (409 MB) / 1720188928 bytes (1640 MB) up to 7635730432 bytes (7282 MB)

JVM Flags: 2 total; -Xmx8g -Xms256m

IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95

FML: MCP 9.32 Powered by Forge 12.18.1.2011 6 mods loaded, 6 mods active

States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

UCHIJAAAA mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)

UCHIJAAAA FML{8.0.99.99} [Forge Mod Loader] (forgeSrc-1.10.2-12.18.1.2011.jar)

UCHIJAAAA Forge{12.18.1.2011} [Minecraft Forge] (forgeSrc-1.10.2-12.18.1.2011.jar)

UCHIJAAAA moleculecraft{0.0.1} [MoleculeCraft] (bin)

UCHIJAAAA examplemod{1.0} [Example Mod] (bin)

UCHIJAAAA JEI{3.7.6.232} [Just Enough Items] (jei_1.10.2-3.7.6.232.jar)

Loaded coremods (and transformers):

GL info: ' Vendor: 'ATI Technologies Inc.' Version: '4.5.13431 Compatibility Profile Context 16.150.2211.0' Renderer: 'AMD Radeon HD 7900 Series'

Launched Version: 1.10.2

LWJGL: 2.9.4

OpenGL: AMD Radeon HD 7900 Series GL version 4.5.13431 Compatibility Profile Context 16.150.2211.0, ATI Technologies Inc.

GL Caps: Using GL 1.3 multitexturing.

Using GL 1.3 texture combiners.

Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.

Shaders are available because OpenGL 2.1 is supported.

VBOs are available because OpenGL 1.5 is supported.

Using VBOs: Yes

Is Modded: Definitely; Client brand changed to 'fml,forge'

Type: Client (map_client.txt)

Resource Packs:

Current Language: English (US)

Profiler Position: N/A (disabled)

CPU: 4x Intel® Core i5-3570K CPU @ 3.40GHz

Draco18s · August 3, 2016

Your problem though is the fact that you never initialize burnTimeInitial to anything. You helpfully check to see if it's not null and print "yep, it's not null!" but it is null, so the program crashes.

Messorix · August 4, 2016

Whenever I run the code as it is right now on github, the moment it crashes seems randomish.

In the console I can see it runs through fractionOfFuelRemaining several times without failing, after which it suddenly crashes.

I added "System.out.println("FuelSlots = " + fuel_slots + " (fractionOfFuelRemaining)");" on line 54.

[03:47:25] [server thread/INFO]: Saving chunks for level 'Test world'/The End

[03:47:30] [server thread/INFO] [sTDOUT]: [com.messorix.moleculecraft.base.tileentities.TileEntityFluxGrinder:setup:100]: Setup runned

[03:47:30] [server thread/INFO] [sTDOUT]: [com.messorix.moleculecraft.base.tileentities.TileEntityFluxGrinder:setup:104]: Setup not done yet

[03:47:30] [server thread/INFO] [sTDOUT]: [com.messorix.moleculecraft.base.tileentities.TileEntityFluxGrinder:setup:118]: Setup done

[03:47:30] [Client thread/INFO] [sTDOUT]: [com.messorix.moleculecraft.base.tileentities.TileEntityFluxGrinder:setup:100]: Setup runned

[03:47:30] [server thread/INFO] [sTDOUT]: [com.messorix.moleculecraft.base.tileentities.ModTileEntity:processItem:153]: Input slot = 1

[03:47:30] [server thread/INFO] [sTDOUT]: [com.messorix.moleculecraft.base.tileentities.ModTileEntity:numberOfBurningFuelSlots:84]: BTR = 1 (numberOfBurningFuelSlots)

[03:47:30] [server thread/INFO] [sTDOUT]: [com.messorix.moleculecraft.base.tileentities.ModTileEntity:numberOfBurningFuelSlots:88]: burnTime = 0

[03:47:30] [server thread/INFO] [sTDOUT]: [com.messorix.moleculecraft.base.tileentities.ModTileEntity:numberOfBurningFuelSlots:95]: burningCount = 0

[03:47:30] [server thread/INFO] [sTDOUT]: [com.messorix.moleculecraft.base.tileentities.ModTileEntity:processItem:153]: Input slot = 1

[03:47:30] [server thread/INFO] [sTDOUT]: [com.messorix.moleculecraft.base.tileentities.ModTileEntity:numberOfBurningFuelSlots:84]: BTR = 1 (numberOfBurningFuelSlots)

[03:47:30] [server thread/INFO] [sTDOUT]: [com.messorix.moleculecraft.base.tileentities.ModTileEntity:numberOfBurningFuelSlots:88]: burnTime = 0

[03:47:30] [server thread/INFO] [sTDOUT]: [com.messorix.moleculecraft.base.tileentities.ModTileEntity:numberOfBurningFuelSlots:95]: burningCount = 0

[03:47:30] [Client thread/INFO] [sTDOUT]: [com.messorix.moleculecraft.base.tileentities.ModTileEntity:fractionOfFuelRemaining:54]: FuelSlots = 1 (fractionOfFuelRemaining)