[1.7.10] Custom "Machine" Not letting me move items in inventory.

[coppyhop]

Hello. I am currently making a mod for Minecraft, and have run into some problems. Whenevery I open my custom "Machine" the Metal Smelter, I can't move any Items at all. I can't test If the thing works because It won't let me move anything in the inventory at all. I click, and it snaps back.

 

Tile Entity:

package com.coppyhop.FutureCraft.tile;

import cpw.mods.fml.common.registry.GameRegistry;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.block.Block;
import net.minecraft.block.BlockFurnace;
import net.minecraft.block.material.Material;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.init.Items;
import net.minecraft.inventory.ISidedInventory;
import net.minecraft.item.Item;
import net.minecraft.item.ItemBlock;
import net.minecraft.item.ItemHoe;
import net.minecraft.item.ItemStack;
import net.minecraft.item.ItemSword;
import net.minecraft.item.ItemTool;
import net.minecraft.item.crafting.FurnaceRecipes;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.tileentity.TileEntity;

public class TileMetalSmelterEntity extends TileEntity implements ISidedInventory
{
    private static final int[] slotsTop = new int[] {0};
    private static final int[] slotsBottom = new int[] {2, 1};
    private static final int[] slotsSides = new int[] {1};
    /** The ItemStacks that hold the items currently being used in the furnace */
    private ItemStack[] furnaceItemStacks = new ItemStack[3];
    /** The number of ticks that the furnace will keep burning */
    public int furnaceBurnTime;
    /** The number of ticks that a fresh copy of the currently-burning item would keep the furnace burning for */
    public int currentItemBurnTime;
    /** The number of ticks that the current item has been cooking for */
    public int furnaceCookTime;
    private String field_145958_o;
    private static final String __OBFID = "CL_00000357";

    /**
     * Returns the number of slots in the inventory.
     */
    public int getSizeInventory()
    {
        return this.furnaceItemStacks.length;
    }

    /**
     * Returns the stack in slot i
     */
    public ItemStack getStackInSlot(int p_70301_1_)
    {
        return this.furnaceItemStacks[p_70301_1_];
    }

    /**
     * Removes from an inventory slot (first arg) up to a specified number (second arg) of items and returns them in a
     * new stack.
     */
    public ItemStack decrStackSize(int p_70298_1_, int p_70298_2_)
    {
        if (this.furnaceItemStacks[p_70298_1_] != null)
        {
            ItemStack itemstack;

            if (this.furnaceItemStacks[p_70298_1_].stackSize <= p_70298_2_)
            {
                itemstack = this.furnaceItemStacks[p_70298_1_];
                this.furnaceItemStacks[p_70298_1_] = null;
                return itemstack;
            }
            else
            {
                itemstack = this.furnaceItemStacks[p_70298_1_].splitStack(p_70298_2_);

                if (this.furnaceItemStacks[p_70298_1_].stackSize == 0)
                {
                    this.furnaceItemStacks[p_70298_1_] = null;
                }

                return itemstack;
            }
        }
        else
        {
            return null;
        }
    }

    /**
     * When some containers are closed they call this on each slot, then drop whatever it returns as an EntityItem -
     * like when you close a workbench GUI.
     */
    public ItemStack getStackInSlotOnClosing(int p_70304_1_)
    {
        if (this.furnaceItemStacks[p_70304_1_] != null)
        {
            ItemStack itemstack = this.furnaceItemStacks[p_70304_1_];
            this.furnaceItemStacks[p_70304_1_] = null;
            return itemstack;
        }
        else
        {
            return null;
        }
    }

    /**
     * Sets the given item stack to the specified slot in the inventory (can be crafting or armor sections).
     */
    public void setInventorySlotContents(int p_70299_1_, ItemStack p_70299_2_)
    {
        this.furnaceItemStacks[p_70299_1_] = p_70299_2_;

        if (p_70299_2_ != null && p_70299_2_.stackSize > this.getInventoryStackLimit())
        {
            p_70299_2_.stackSize = this.getInventoryStackLimit();
        }
    }

    /**
     * Returns the name of the inventory
     */
    public String getInventoryName()
    {
        return this.hasCustomInventoryName() ? this.field_145958_o : "container.furnace";
    }

    /**
     * Returns if the inventory is named
     */
    public boolean hasCustomInventoryName()
    {
        return this.field_145958_o != null && this.field_145958_o.length() > 0;
    }

    public void func_145951_a(String p_145951_1_)
    {
        this.field_145958_o = p_145951_1_;
    }

    public void readFromNBT(NBTTagCompound p_145839_1_)
    {
        super.readFromNBT(p_145839_1_);
        NBTTagList nbttaglist = p_145839_1_.getTagList("Items", 10);
        this.furnaceItemStacks = new ItemStack[this.getSizeInventory()];

        for (int i = 0; i < nbttaglist.tagCount(); ++i)
        {
            NBTTagCompound nbttagcompound1 = nbttaglist.getCompoundTagAt(i);
            byte b0 = nbttagcompound1.getByte("Slot");

            if (b0 >= 0 && b0 < this.furnaceItemStacks.length)
            {
                this.furnaceItemStacks[b0] = ItemStack.loadItemStackFromNBT(nbttagcompound1);
            }
        }

        this.furnaceBurnTime = p_145839_1_.getShort("BurnTime");
        this.furnaceCookTime = p_145839_1_.getShort("CookTime");
        this.currentItemBurnTime = getItemBurnTime(this.furnaceItemStacks[1]);

        if (p_145839_1_.hasKey("CustomName", )
        {
            this.field_145958_o = p_145839_1_.getString("CustomName");
        }
    }

    public void writeToNBT(NBTTagCompound p_145841_1_)
    {
        super.writeToNBT(p_145841_1_);
        p_145841_1_.setShort("BurnTime", (short)this.furnaceBurnTime);
        p_145841_1_.setShort("CookTime", (short)this.furnaceCookTime);
        NBTTagList nbttaglist = new NBTTagList();

        for (int i = 0; i < this.furnaceItemStacks.length; ++i)
        {
            if (this.furnaceItemStacks[i] != null)
            {
                NBTTagCompound nbttagcompound1 = new NBTTagCompound();
                nbttagcompound1.setByte("Slot", (byte)i);
                this.furnaceItemStacks[i].writeToNBT(nbttagcompound1);
                nbttaglist.appendTag(nbttagcompound1);
            }
        }

        p_145841_1_.setTag("Items", nbttaglist);

        if (this.hasCustomInventoryName())
        {
            p_145841_1_.setString("CustomName", this.field_145958_o);
        }
    }

    /**
     * Returns the maximum stack size for a inventory slot.
     */
    public int getInventoryStackLimit()
    {
        return 64;
    }

    /**
     * Returns an integer between 0 and the passed value representing how close the current item is to being completely
     * cooked
     */
    @SideOnly(Side.CLIENT)
    public int getCookProgressScaled(int p_145953_1_)
    {
        return this.furnaceCookTime * p_145953_1_ / 200;
    }

    /**
     * Returns an integer between 0 and the passed value representing how much burn time is left on the current fuel
     * item, where 0 means that the item is exhausted and the passed value means that the item is fresh
     */
    @SideOnly(Side.CLIENT)
    public int getBurnTimeRemainingScaled(int p_145955_1_)
    {
        if (this.currentItemBurnTime == 0)
        {
            this.currentItemBurnTime = 200;
        }

        return this.furnaceBurnTime * p_145955_1_ / this.currentItemBurnTime;
    }

    /**
     * Furnace isBurning
     */
    public boolean isBurning()
    {
        return this.furnaceBurnTime > 0;
    }

    public void updateEntity()
    {
        boolean flag = this.furnaceBurnTime > 0;
        boolean flag1 = false;

        if (this.furnaceBurnTime > 0)
        {
            --this.furnaceBurnTime;
        }

        if (!this.worldObj.isRemote)
        {
            if (this.furnaceBurnTime != 0 || this.furnaceItemStacks[1] != null && this.furnaceItemStacks[0] != null)
            {
                if (this.furnaceBurnTime == 0 && this.canSmelt())
                {
                    this.currentItemBurnTime = this.furnaceBurnTime = getItemBurnTime(this.furnaceItemStacks[1]);

                    if (this.furnaceBurnTime > 0)
                    {
                        flag1 = true;

                        if (this.furnaceItemStacks[1] != null)
                        {
                            --this.furnaceItemStacks[1].stackSize;

                            if (this.furnaceItemStacks[1].stackSize == 0)
                            {
                                this.furnaceItemStacks[1] = furnaceItemStacks[1].getItem().getContainerItem(furnaceItemStacks[1]);
                            }
                        }
                    }
                }

                if (this.isBurning() && this.canSmelt())
                {
                    ++this.furnaceCookTime;

                    if (this.furnaceCookTime == 200)
                    {
                        this.furnaceCookTime = 0;
                        this.smeltItem();
                        flag1 = true;
                    }
                }
                else
                {
                    this.furnaceCookTime = 0;
                }
            }

            if (flag != this.furnaceBurnTime > 0)
            {
                flag1 = true;
                BlockFurnace.updateFurnaceBlockState(this.furnaceBurnTime > 0, this.worldObj, this.xCoord, this.yCoord, this.zCoord);
            }
        }

        if (flag1)
        {
            this.markDirty();
        }
    }

    /**
     * Returns true if the furnace can smelt an item, i.e. has a source item, destination stack isn't full, etc.
     */
    private boolean canSmelt()
    {
        if (this.furnaceItemStacks[0] == null)
        {
            return false;
        }
        else
        {
            ItemStack itemstack = FurnaceRecipes.smelting().getSmeltingResult(this.furnaceItemStacks[0]);
            if (itemstack == null) return false;
            if (this.furnaceItemStacks[2] == null) return true;
            if (!this.furnaceItemStacks[2].isItemEqual(itemstack)) return false;
            int result = furnaceItemStacks[2].stackSize + itemstack.stackSize;
            return result <= getInventoryStackLimit() && result <= this.furnaceItemStacks[2].getMaxStackSize(); //Forge BugFix: Make it respect stack sizes properly.
        }
    }

    /**
     * Turn one item from the furnace source stack into the appropriate smelted item in the furnace result stack
     */
    public void smeltItem()
    {
        if (this.canSmelt())
        {
            ItemStack itemstack = FurnaceRecipes.smelting().getSmeltingResult(this.furnaceItemStacks[0]);

            if (this.furnaceItemStacks[2] == null)
            {
                this.furnaceItemStacks[2] = itemstack.copy();
            }
            else if (this.furnaceItemStacks[2].getItem() == itemstack.getItem())
            {
                this.furnaceItemStacks[2].stackSize += itemstack.stackSize; // Forge BugFix: Results may have multiple items
            }

            --this.furnaceItemStacks[0].stackSize;

            if (this.furnaceItemStacks[0].stackSize <= 0)
            {
                this.furnaceItemStacks[0] = null;
            }
        }
    }

    /**
     * Returns the number of ticks that the supplied fuel item will keep the furnace burning, or 0 if the item isn't
     * fuel
     */
    public static int getItemBurnTime(ItemStack p_145952_0_)
    {
        if (p_145952_0_ == null)
        {
            return 0;
        }
        else
        {
            Item item = p_145952_0_.getItem();

            if (item instanceof ItemBlock && Block.getBlockFromItem(item) != Blocks.air)
            {
                Block block = Block.getBlockFromItem(item);

                if (block == Blocks.wooden_slab)
                {
                    return 150;
                }

                if (block.getMaterial() == Material.wood)
                {
                    return 300;
                }

                if (block == Blocks.coal_block)
                {
                    return 16000;
                }
            }

            if (item instanceof ItemTool && ((ItemTool)item).getToolMaterialName().equals("WOOD")) return 200;
            if (item instanceof ItemSword && ((ItemSword)item).getToolMaterialName().equals("WOOD")) return 200;
            if (item instanceof ItemHoe && ((ItemHoe)item).getToolMaterialName().equals("WOOD")) return 200;
            if (item == Items.stick) return 100;
            if (item == Items.coal) return 1600;
            if (item == Items.lava_bucket) return 20000;
            if (item == Item.getItemFromBlock(Blocks.sapling)) return 100;
            if (item == Items.blaze_rod) return 2400;
            return GameRegistry.getFuelValue(p_145952_0_);
        }
    }

    public static boolean isItemFuel(ItemStack p_145954_0_)
    {
        /**
         * Returns the number of ticks that the supplied fuel item will keep the furnace burning, or 0 if the item isn't
         * fuel
         */
        return getItemBurnTime(p_145954_0_) > 0;
    }

    /**
     * Do not make give this method the name canInteractWith because it clashes with Container
     */
    public boolean isUseableByPlayer(EntityPlayer p_70300_1_)
    {
        return this.worldObj.getTileEntity(this.xCoord, this.yCoord, this.zCoord) != this ? false : p_70300_1_.getDistanceSq((double)this.xCoord + 0.5D, (double)this.yCoord + 0.5D, (double)this.zCoord + 0.5D) <= 64.0D;
    }

    public void openInventory() {}

    public void closeInventory() {}

    /**
     * Returns true if automation is allowed to insert the given stack (ignoring stack size) into the given slot.
     */
    public boolean isItemValidForSlot(int p_94041_1_, ItemStack p_94041_2_)
    {
        return p_94041_1_ == 2 ? false : (p_94041_1_ == 1 ? isItemFuel(p_94041_2_) : true);
    }

    /**
     * Returns an array containing the indices of the slots that can be accessed by automation on the given side of this
     * block.
     */
    public int[] getAccessibleSlotsFromSide(int p_94128_1_)
    {
        return p_94128_1_ == 0 ? slotsBottom : (p_94128_1_ == 1 ? slotsTop : slotsSides);
    }

    /**
     * Returns true if automation can insert the given item in the given slot from the given side. Args: Slot, item,
     * side
     */
    public boolean canInsertItem(int p_102007_1_, ItemStack p_102007_2_, int p_102007_3_)
    {
        return this.isItemValidForSlot(p_102007_1_, p_102007_2_);
    }

    /**
     * Returns true if automation can extract the given item in the given slot from the given side. Args: Slot, item,
     * side
     */
    public boolean canExtractItem(int p_102008_1_, ItemStack p_102008_2_, int p_102008_3_)
    {
        return p_102008_3_ != 0 || p_102008_1_ != 1 || p_102008_2_.getItem() == Items.bucket;
    }
}

Tile:

package com.coppyhop.FutureCraft.tile;



import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

import java.util.Random;

import com.coppyhop.FutureCraft.FutureCraft;
import com.coppyhop.FutureCraft.GUIs;

import net.minecraft.block.Block;
import net.minecraft.block.BlockContainer;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.IIcon;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;

public class TileMetalSmelter extends BlockContainer{

private final Random field_149933_a = new Random();
    private final boolean field_149932_b;
    private static boolean field_149934_M;
    @SideOnly(Side.CLIENT)
    private IIcon field_149935_N;
    @SideOnly(Side.CLIENT)
    private IIcon field_149936_O;
    private static final String __OBFID = "CL_00000248";

    public TileMetalSmelter(boolean p_i45407_1_)
    {
        super(Material.rock);
        this.field_149932_b = p_i45407_1_;
    }

    public Item getItemDropped(int p_149650_1_, Random p_149650_2_, int p_149650_3_)
    {
        return Item.getItemFromBlock(FutureCraft.metalSmelter);
    }

    /**
     * Called whenever the block is added into the world. Args: world, x, y, z
     */
    public void onBlockAdded(World p_149726_1_, int p_149726_2_, int p_149726_3_, int p_149726_4_)
    {
        super.onBlockAdded(p_149726_1_, p_149726_2_, p_149726_3_, p_149726_4_);
        this.func_149930_e(p_149726_1_, p_149726_2_, p_149726_3_, p_149726_4_);
    }

    private void func_149930_e(World p_149930_1_, int p_149930_2_, int p_149930_3_, int p_149930_4_)
    {
        if (!p_149930_1_.isRemote)
        {
            Block block = p_149930_1_.getBlock(p_149930_2_, p_149930_3_, p_149930_4_ - 1);
            Block block1 = p_149930_1_.getBlock(p_149930_2_, p_149930_3_, p_149930_4_ + 1);
            Block block2 = p_149930_1_.getBlock(p_149930_2_ - 1, p_149930_3_, p_149930_4_);
            Block block3 = p_149930_1_.getBlock(p_149930_2_ + 1, p_149930_3_, p_149930_4_);
            byte b0 = 3;

            if (block.func_149730_j() && !block1.func_149730_j())
            {
                b0 = 3;
            }

            if (block1.func_149730_j() && !block.func_149730_j())
            {
                b0 = 2;
            }

            if (block2.func_149730_j() && !block3.func_149730_j())
            {
                b0 = 5;
            }

            if (block3.func_149730_j() && !block2.func_149730_j())
            {
                b0 = 4;
            }

            p_149930_1_.setBlockMetadataWithNotify(p_149930_2_, p_149930_3_, p_149930_4_, b0, 2);
        }
    }

    /**
     * Gets the block's texture. Args: side, meta
     */
    @SideOnly(Side.CLIENT)
    public IIcon getIcon(int p_149691_1_, int p_149691_2_)
    {
        return p_149691_1_ == 1 ? this.field_149935_N : (p_149691_1_ == 0 ? this.field_149935_N : (p_149691_1_ != p_149691_2_ ? this.blockIcon : this.field_149936_O));
    }

    @SideOnly(Side.CLIENT)
    public void registerBlockIcons(IIconRegister p_149651_1_)
    {
        this.blockIcon = p_149651_1_.registerIcon("furnace_side");
        this.field_149936_O = p_149651_1_.registerIcon(this.field_149932_b ? "FutureCraft:tileMetalSmelterOn" : "FutureCraft:tileMetalSmelterOff");
        this.field_149935_N = p_149651_1_.registerIcon("furnace_top");
    }

    /**
     * Called upon block activation (right click on the block.)
     */
    @Override
    public boolean onBlockActivated(World world, int x, int y, int z, EntityPlayer player, int i, float a, float b, float c)
    {
    	 TileMetalSmelterEntity gold = (TileMetalSmelterEntity)world.getTileEntity(x, y, z);

    player.openGui(FutureCraft.instance, GUIs.SMELTER.ordinal(), world, x, y, z);

    	 return true;
    }



    /**
     * Update which block the furnace is using depending on whether or not it is burning
     */
    public static void updateFurnaceBlockState(boolean p_149931_0_, World p_149931_1_, int p_149931_2_, int p_149931_3_, int p_149931_4_)
    {
        int l = p_149931_1_.getBlockMetadata(p_149931_2_, p_149931_3_, p_149931_4_);
        TileEntity tileentity = p_149931_1_.getTileEntity(p_149931_2_, p_149931_3_, p_149931_4_);
        field_149934_M = true;

        if (p_149931_0_)
        {
            p_149931_1_.setBlock(p_149931_2_, p_149931_3_, p_149931_4_, FutureCraft.metalSmelterON);
        }
        else
        {
            p_149931_1_.setBlock(p_149931_2_, p_149931_3_, p_149931_4_, FutureCraft.metalSmelter);
        }

        field_149934_M = false;
        p_149931_1_.setBlockMetadataWithNotify(p_149931_2_, p_149931_3_, p_149931_4_, l, 2);

        if (tileentity != null)
        {
            tileentity.validate();
            p_149931_1_.setTileEntity(p_149931_2_, p_149931_3_, p_149931_4_, tileentity);
        }
    }

    /**
     * Returns a new instance of a block's tile entity class. Called on placing the block.
     */
    public TileEntity createNewTileEntity(World p_149915_1_, int p_149915_2_)
    {
        return new TileMetalSmelterEntity();
    }

    /**
     * Called when the block is placed in the world.
     */
    public void onBlockPlacedBy(World p_149689_1_, int p_149689_2_, int p_149689_3_, int p_149689_4_, EntityLivingBase p_149689_5_, ItemStack p_149689_6_)
    {
        int l = MathHelper.floor_double((double)(p_149689_5_.rotationYaw * 4.0F / 360.0F) + 0.5D) & 3;

        if (l == 0)
        {
            p_149689_1_.setBlockMetadataWithNotify(p_149689_2_, p_149689_3_, p_149689_4_, 2, 2);
        }

        if (l == 1)
        {
            p_149689_1_.setBlockMetadataWithNotify(p_149689_2_, p_149689_3_, p_149689_4_, 5, 2);
        }

        if (l == 2)
        {
            p_149689_1_.setBlockMetadataWithNotify(p_149689_2_, p_149689_3_, p_149689_4_, 3, 2);
        }

        if (l == 3)
        {
            p_149689_1_.setBlockMetadataWithNotify(p_149689_2_, p_149689_3_, p_149689_4_, 4, 2);
        }

        if (p_149689_6_.hasDisplayName())
        {
            ((TileMetalSmelterEntity)p_149689_1_.getTileEntity(p_149689_2_, p_149689_3_, p_149689_4_)).func_145951_a(p_149689_6_.getDisplayName());
        }
    }

    public void breakBlock(World p_149749_1_, int p_149749_2_, int p_149749_3_, int p_149749_4_, Block p_149749_5_, int p_149749_6_)
    {
        if (!field_149934_M)
        {
            TileMetalSmelterEntity TileMetalSmelterEntity = (TileMetalSmelterEntity)p_149749_1_.getTileEntity(p_149749_2_, p_149749_3_, p_149749_4_);

            if (TileMetalSmelterEntity != null)
            {
                for (int i1 = 0; i1 < TileMetalSmelterEntity.getSizeInventory(); ++i1)
                {
                    ItemStack itemstack = TileMetalSmelterEntity.getStackInSlot(i1);

                    if (itemstack != null)
                    {
                        float f = this.field_149933_a.nextFloat() * 0.8F + 0.1F;
                        float f1 = this.field_149933_a.nextFloat() * 0.8F + 0.1F;
                        float f2 = this.field_149933_a.nextFloat() * 0.8F + 0.1F;

                        while (itemstack.stackSize > 0)
                        {
                            int j1 = this.field_149933_a.nextInt(21) + 10;

                            if (j1 > itemstack.stackSize)
                            {
                                j1 = itemstack.stackSize;
                            }

                            itemstack.stackSize -= j1;
                            EntityItem entityitem = new EntityItem(p_149749_1_, (double)((float)p_149749_2_ + f), (double)((float)p_149749_3_ + f1), (double)((float)p_149749_4_ + f2), new ItemStack(itemstack.getItem(), j1, itemstack.getItemDamage()));

                            if (itemstack.hasTagCompound())
                            {
                                entityitem.getEntityItem().setTagCompound((NBTTagCompound)itemstack.getTagCompound().copy());
                            }

                            float f3 = 0.05F;
                            entityitem.motionX = (double)((float)this.field_149933_a.nextGaussian() * f3);
                            entityitem.motionY = (double)((float)this.field_149933_a.nextGaussian() * f3 + 0.2F);
                            entityitem.motionZ = (double)((float)this.field_149933_a.nextGaussian() * f3);
                            p_149749_1_.spawnEntityInWorld(entityitem);
                        }
                    }
                }

                p_149749_1_.func_147453_f(p_149749_2_, p_149749_3_, p_149749_4_, p_149749_5_);
            }
        }

        super.breakBlock(p_149749_1_, p_149749_2_, p_149749_3_, p_149749_4_, p_149749_5_, p_149749_6_);
    }

    /**
     * A randomly called display update to be able to add particles or other items for display
     */
    @SideOnly(Side.CLIENT)
    public void randomDisplayTick(World p_149734_1_, int p_149734_2_, int p_149734_3_, int p_149734_4_, Random p_149734_5_)
    {
        if (this.field_149932_b)
        {
            int l = p_149734_1_.getBlockMetadata(p_149734_2_, p_149734_3_, p_149734_4_);
            float f = (float)p_149734_2_ + 0.5F;
            float f1 = (float)p_149734_3_ + 0.0F + p_149734_5_.nextFloat() * 6.0F / 16.0F;
            float f2 = (float)p_149734_4_ + 0.5F;
            float f3 = 0.52F;
            float f4 = p_149734_5_.nextFloat() * 0.6F - 0.3F;

            if (l == 4)
            {
                p_149734_1_.spawnParticle("smoke", (double)(f - f3), (double)f1, (double)(f2 + f4), 0.0D, 0.0D, 0.0D);
                p_149734_1_.spawnParticle("flame", (double)(f - f3), (double)f1, (double)(f2 + f4), 0.0D, 0.0D, 0.0D);
            }
            else if (l == 5)
            {
                p_149734_1_.spawnParticle("smoke", (double)(f + f3), (double)f1, (double)(f2 + f4), 0.0D, 0.0D, 0.0D);
                p_149734_1_.spawnParticle("flame", (double)(f + f3), (double)f1, (double)(f2 + f4), 0.0D, 0.0D, 0.0D);
            }
            else if (l == 2)
            {
                p_149734_1_.spawnParticle("smoke", (double)(f + f4), (double)f1, (double)(f2 - f3), 0.0D, 0.0D, 0.0D);
                p_149734_1_.spawnParticle("flame", (double)(f + f4), (double)f1, (double)(f2 - f3), 0.0D, 0.0D, 0.0D);
            }
            else if (l == 3)
            {
                p_149734_1_.spawnParticle("smoke", (double)(f + f4), (double)f1, (double)(f2 + f3), 0.0D, 0.0D, 0.0D);
                p_149734_1_.spawnParticle("flame", (double)(f + f4), (double)f1, (double)(f2 + f3), 0.0D, 0.0D, 0.0D);
            }
        }
    }

    /**
     * If this returns true, then comparators facing away from this block will use the value from
     * getComparatorInputOverride instead of the actual redstone signal strength.
     */
    public boolean hasComparatorInputOverride()
    {
        return true;
    }

    /**
     * If hasComparatorInputOverride returns true, the return value from this is used instead of the redstone signal
     * strength when this block inputs to a comparator.
     */
    public int getComparatorInputOverride(World p_149736_1_, int p_149736_2_, int p_149736_3_, int p_149736_4_, int p_149736_5_)
    {
        return Container.calcRedstoneFromInventory((IInventory)p_149736_1_.getTileEntity(p_149736_2_, p_149736_3_, p_149736_4_));
    }

    /**
     * Gets an item for the block being called on. Args: world, x, y, z
     */
    @SideOnly(Side.CLIENT)
    public Item getItem(World p_149694_1_, int p_149694_2_, int p_149694_3_, int p_149694_4_)
    {
        return Item.getItemFromBlock(FutureCraft.metalSmelter);
    }
}

Container:

package com.coppyhop.FutureCraft;


import com.coppyhop.FutureCraft.tile.TileMetalSmelterEntity;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.ICrafting;
import net.minecraft.inventory.Slot;
import net.minecraft.inventory.SlotFurnace;
import net.minecraft.item.ItemStack;
import net.minecraft.item.crafting.FurnaceRecipes;
import net.minecraft.tileentity.TileEntityFurnace;

public class ContainerSmelter extends Container
{
    private TileMetalSmelterEntity tileFurnace;
    private int lastCookTime;
    private int lastBurnTime;
    private int lastItemBurnTime;
    private static final String __OBFID = "CL_00001748";

    public ContainerSmelter(InventoryPlayer p_i1812_1_, TileMetalSmelterEntity p_i1091_2_)
    {
        this.tileFurnace = p_i1091_2_;
        this.addSlotToContainer(new Slot(p_i1091_2_, 0, 56, 17));
        this.addSlotToContainer(new Slot(p_i1091_2_, 1, 56, 53));
        this.addSlotToContainer(new SlotFurnace(p_i1812_1_.player, p_i1091_2_, 2, 116, 35));
        int i;

        for (i = 0; i < 3; ++i)
        {
            for (int j = 0; j < 9; ++j)
            {
                this.addSlotToContainer(new Slot(p_i1812_1_, j + i * 9 + 9, 8 + j * 18, 84 + i * 18));
            }
        }

        for (i = 0; i < 9; ++i)
        {
            this.addSlotToContainer(new Slot(p_i1812_1_, i, 8 + i * 18, 142));
        }
    }

    public void addCraftingToCrafters(ICrafting p_75132_1_)
    {
        super.addCraftingToCrafters(p_75132_1_);
        p_75132_1_.sendProgressBarUpdate(this, 0, this.tileFurnace.furnaceCookTime);
        p_75132_1_.sendProgressBarUpdate(this, 1, this.tileFurnace.furnaceBurnTime);
        p_75132_1_.sendProgressBarUpdate(this, 2, this.tileFurnace.currentItemBurnTime);
    }

    /**
     * Looks for changes made in the container, sends them to every listener.
     */
    public void detectAndSendChanges()
    {
        super.detectAndSendChanges();

        for (int i = 0; i < this.crafters.size(); ++i)
        {
            ICrafting icrafting = (ICrafting)this.crafters.get(i);

            if (this.lastCookTime != this.tileFurnace.furnaceCookTime)
            {
                icrafting.sendProgressBarUpdate(this, 0, this.tileFurnace.furnaceCookTime);
            }

            if (this.lastBurnTime != this.tileFurnace.furnaceBurnTime)
            {
                icrafting.sendProgressBarUpdate(this, 1, this.tileFurnace.furnaceBurnTime);
            }

            if (this.lastItemBurnTime != this.tileFurnace.currentItemBurnTime)
            {
                icrafting.sendProgressBarUpdate(this, 2, this.tileFurnace.currentItemBurnTime);
            }
        }

        this.lastCookTime = this.tileFurnace.furnaceCookTime;
        this.lastBurnTime = this.tileFurnace.furnaceBurnTime;
        this.lastItemBurnTime = this.tileFurnace.currentItemBurnTime;
    }

    @SideOnly(Side.CLIENT)
    public void updateProgressBar(int p_75137_1_, int p_75137_2_)
    {
        if (p_75137_1_ == 0)
        {
            this.tileFurnace.furnaceCookTime = p_75137_2_;
        }

        if (p_75137_1_ == 1)
        {
            this.tileFurnace.furnaceBurnTime = p_75137_2_;
        }

        if (p_75137_1_ == 2)
        {
            this.tileFurnace.currentItemBurnTime = p_75137_2_;
        }
    }

    public boolean canInteractWith(EntityPlayer p_75145_1_)
    {
        return this.tileFurnace.isUseableByPlayer(p_75145_1_);
    }

    /**
     * Called when a player shift-clicks on a slot. You must override this or you will crash when someone does that.
     */
    public ItemStack transferStackInSlot(EntityPlayer p_82846_1_, int p_82846_2_)
    {
        ItemStack itemstack = null;
        Slot slot = (Slot)this.inventorySlots.get(p_82846_2_);

        if (slot != null && slot.getHasStack())
        {
            ItemStack itemstack1 = slot.getStack();
            itemstack = itemstack1.copy();

            if (p_82846_2_ == 2)
            {
                if (!this.mergeItemStack(itemstack1, 3, 39, true))
                {
                    return null;
                }

                slot.onSlotChange(itemstack1, itemstack);
            }
            else if (p_82846_2_ != 1 && p_82846_2_ != 0)
            {
                if (FurnaceRecipes.smelting().getSmeltingResult(itemstack1) != null)
                {
                    if (!this.mergeItemStack(itemstack1, 0, 1, false))
                    {
                        return null;
                    }
                }
                else if (TileEntityFurnace.isItemFuel(itemstack1))
                {
                    if (!this.mergeItemStack(itemstack1, 1, 2, false))
                    {
                        return null;
                    }
                }
                else if (p_82846_2_ >= 3 && p_82846_2_ < 30)
                {
                    if (!this.mergeItemStack(itemstack1, 30, 39, false))
                    {
                        return null;
                    }
                }
                else if (p_82846_2_ >= 30 && p_82846_2_ < 39 && !this.mergeItemStack(itemstack1, 3, 30, false))
                {
                    return null;
                }
            }
            else if (!this.mergeItemStack(itemstack1, 3, 39, false))
            {
                return null;
            }

            if (itemstack1.stackSize == 0)
            {
                slot.putStack((ItemStack)null);
            }
            else
            {
                slot.onSlotChanged();
            }

            if (itemstack1.stackSize == itemstack.stackSize)
            {
                return null;
            }

            slot.onPickupFromSlot(p_82846_1_, itemstack1);
        }

        return itemstack;
    }
}

Gui:

package com.coppyhop.FutureCraft;


import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.gui.inventory.GuiContainer;
import net.minecraft.client.resources.I18n;
import net.minecraft.entity.player.InventoryPlayer;

import net.minecraft.util.ResourceLocation;

import org.lwjgl.opengl.GL11;

import com.coppyhop.FutureCraft.tile.TileMetalSmelterEntity;

@SideOnly(Side.CLIENT)
public class GuiSmelter extends GuiContainer
{
    private static final ResourceLocation furnaceGuiTextures = new ResourceLocation("FutureCraft:textures/gui/smeltergui.png");
    private TileMetalSmelterEntity tileFurnace;
    private static final String __OBFID = "CL_00000758";

    public GuiSmelter(InventoryPlayer p_i1091_1_, TileMetalSmelterEntity p_i1091_2_)
    {
        super(new ContainerSmelter(p_i1091_1_, p_i1091_2_));
        this.tileFurnace = p_i1091_2_;
    }

    /**
     * Draw the foreground layer for the GuiContainer (everything in front of the items)
     */
    protected void drawGuiContainerForegroundLayer(int p_146979_1_, int p_146979_2_)
    {
        String s = this.tileFurnace.hasCustomInventoryName() ? this.tileFurnace.getInventoryName() : I18n.format(this.tileFurnace.getInventoryName(), new Object[0]);
        this.fontRendererObj.drawString(s, this.xSize / 2 - this.fontRendererObj.getStringWidth(s) / 2, 6, 4210752);
        this.fontRendererObj.drawString(I18n.format("container.inventory", new Object[0]), 8, this.ySize - 96 + 2, 4210752);
    }

    protected void drawGuiContainerBackgroundLayer(float p_146976_1_, int p_146976_2_, int p_146976_3_)
    {
        GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
        this.mc.getTextureManager().bindTexture(furnaceGuiTextures);
        int k = (this.width - this.xSize) / 2;
        int l = (this.height - this.ySize) / 2;
        this.drawTexturedModalRect(k, l, 0, 0, this.xSize, this.ySize);

        if (this.tileFurnace.isBurning())
        {
            int i1 = this.tileFurnace.getBurnTimeRemainingScaled(13);
            this.drawTexturedModalRect(k + 56, l + 36 + 12 - i1, 176, 12 - i1, 14, i1 + 1);
            i1 = this.tileFurnace.getCookProgressScaled(24);
            this.drawTexturedModalRect(k + 79, l + 34, 176, 14, i1 + 1, 16);
        }
    }
}

Gui Handler (I don't know If I need this)

package com.coppyhop.FutureCraft;

import com.coppyhop.FutureCraft.tile.TileMetalSmelterEntity;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.world.World;
import cpw.mods.fml.common.network.IGuiHandler;

public class FCGH implements IGuiHandler {
private int x, y, z;  
private World world;
private InventoryPlayer inv;
@Override
    public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
        return null;
    }

    @Override
    public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
        this.x = x;
        this.y = y;
        this.z = z;
        this.world = world;
        inv = player.inventory;
        TileMetalSmelterEntity gold = (TileMetalSmelterEntity)world.getTileEntity(x, y, z);
    	if(ID == GUIs.SMELTER.ordinal()) return new GuiSmelter(inv, gold);
        else return null;
    }

}

NOTE: I copied largely from the Vanilla Furnace Code (Yes I know that it still uses furnace recipes, it for testing)

[Mitchellbrine]

You're opening on Client and Server.

 

Open on Server-only.

[coppyhop]

How will opening on server only help?

[Mitchellbrine]

Opening on client won't let you move your inventory around. It's just plain buggy.

 

Opening on the server fixes it.

[coppyhop]

So, export mod, run server, open client join server, and it works?

[Mitchellbrine]

*sigh* *facepalm*

 

if (!world.isRemote)

 

^^^ That makes it server-only.

[coppyhop]

I did

if(!world.isremote){
player.openGui(FutureCraft.instance, GUIs.SMELTER.ordinal(), world, x, y, z);
}
return true;

but now, it doesn't work. (I can't open gui at all)

[coppyhop]

What do you mean return container? (Sorry First mod)

Oh wait, got it, is it okay if I return a new container every time?

[coppyhop]

Please read my edit, is i ok to do that though?