    001package net.minecraft.tileentity;
    002
    003import cpw.mods.fml.common.registry.GameRegistry;
    004import cpw.mods.fml.relauncher.Side;
    005import cpw.mods.fml.relauncher.SideOnly;
    006import net.minecraft.block.Block;
    007import net.minecraft.block.BlockFurnace;
    008import net.minecraft.block.material.Material;
    009import net.minecraft.entity.player.EntityPlayer;
    010import net.minecraft.inventory.ISidedInventory;
    011import net.minecraft.item.Item;
    012import net.minecraft.item.ItemBlock;
    013import net.minecraft.item.ItemHoe;
    014import net.minecraft.item.ItemStack;
    015import net.minecraft.item.ItemSword;
    016import net.minecraft.item.ItemTool;
    017import net.minecraft.item.crafting.FurnaceRecipes;
    018import net.minecraft.nbt.NBTTagCompound;
    019import net.minecraft.nbt.NBTTagList;
    020import net.minecraftforge.common.ForgeDirection;
    021import net.minecraftforge.common.ForgeDummyContainer;
    022
    023public class TileEntityFurnace extends TileEntity implements ISidedInventory, net.minecraftforge.common.ISidedInventory
    024{
    025    /**
    026     * The ItemStacks that hold the items currently being used in the furnace
    027     */
    028    private ItemStack[] furnaceItemStacks = new ItemStack[3];
    029
    030    /** The number of ticks that the furnace will keep burning */
    031    public int furnaceBurnTime = 0;
    032
    033    /**
    034     * The number of ticks that a fresh copy of the currently-burning item would keep the furnace burning for
    035     */
    036    public int currentItemBurnTime = 0;
    037
    038    /** The number of ticks that the current item has been cooking for */
    039    public int furnaceCookTime = 0;
    040    private String field_94130_e;
    041
    042    /**
    043     * Returns the number of slots in the inventory.
    044     */
    045    public int getSizeInventory()
    046    {
    047        return this.furnaceItemStacks.length;
    048    }
    049
    050    /**
    051     * Returns the stack in slot i
    052     */
    053    public ItemStack getStackInSlot(int par1)
    054    {
    055        return this.furnaceItemStacks[par1];
    056    }
    057
    058    /**
    059     * Removes from an inventory slot (first arg) up to a specified number (second arg) of items and returns them in a
    060     * new stack.
    061     */
    062    public ItemStack decrStackSize(int par1, int par2)
    063    {
    064        if (this.furnaceItemStacks[par1] != null)
    065        {
    066            ItemStack itemstack;
    067
    068            if (this.furnaceItemStacks[par1].stackSize <= par2)
    069            {
    070                itemstack = this.furnaceItemStacks[par1];
    071                this.furnaceItemStacks[par1] = null;
    072                return itemstack;
    073            }
    074            else
    075            {
    076                itemstack = this.furnaceItemStacks[par1].splitStack(par2);
    077
    078                if (this.furnaceItemStacks[par1].stackSize == 0)
    079                {
    080                    this.furnaceItemStacks[par1] = null;
    081                }
    082
    083                return itemstack;
    084            }
    085        }
    086        else
    087        {
    088            return null;
    089        }
    090    }
    091
    092    /**
    093     * When some containers are closed they call this on each slot, then drop whatever it returns as an EntityItem -
    094     * like when you close a workbench GUI.
    095     */
    096    public ItemStack getStackInSlotOnClosing(int par1)
    097    {
    098        if (this.furnaceItemStacks[par1] != null)
    099        {
    100            ItemStack itemstack = this.furnaceItemStacks[par1];
    101            this.furnaceItemStacks[par1] = null;
    102            return itemstack;
    103        }
    104        else
    105        {
    106            return null;
    107        }
    108    }
    109
    110    /**
    111     * Sets the given item stack to the specified slot in the inventory (can be crafting or armor sections).
    112     */
    113    public void setInventorySlotContents(int par1, ItemStack par2ItemStack)
    114    {
    115        this.furnaceItemStacks[par1] = par2ItemStack;
    116
    117        if (par2ItemStack != null && par2ItemStack.stackSize > this.getInventoryStackLimit())
    118        {
    119            par2ItemStack.stackSize = this.getInventoryStackLimit();
    120        }
    121    }
    122
    123    /**
    124     * Returns the name of the inventory.
    125     */
    126    public String getInvName()
    127    {
    128        return this.func_94042_c() ? this.field_94130_e : "container.furnace";
    129    }
    130
    131    public boolean func_94042_c()
    132    {
    133        return this.field_94130_e != null && this.field_94130_e.length() > 0;
    134    }
    135
    136    public void func_94129_a(String par1Str)
    137    {
    138        this.field_94130_e = par1Str;
    139    }
    140
    141    /**
    142     * Reads a tile entity from NBT.
    143     */
    144    public void readFromNBT(NBTTagCompound par1NBTTagCompound)
    145    {
    146        super.readFromNBT(par1NBTTagCompound);
    147        NBTTagList nbttaglist = par1NBTTagCompound.getTagList("Items");
    148        this.furnaceItemStacks = new ItemStack[this.getSizeInventory()];
    149
    150        for (int i = 0; i < nbttaglist.tagCount(); ++i)
    151        {
    152            NBTTagCompound nbttagcompound1 = (NBTTagCompound)nbttaglist.tagAt(i);
    153            byte b0 = nbttagcompound1.getByte("Slot");
    154
    155            if (b0 >= 0 && b0 < this.furnaceItemStacks.length)
    156            {
    157                this.furnaceItemStacks[b0] = ItemStack.loadItemStackFromNBT(nbttagcompound1);
    158            }
    159        }
    160
    161        this.furnaceBurnTime = par1NBTTagCompound.getShort("BurnTime");
    162        this.furnaceCookTime = par1NBTTagCompound.getShort("CookTime");
    163        this.currentItemBurnTime = getItemBurnTime(this.furnaceItemStacks[1]);
    164
    165        if (par1NBTTagCompound.hasKey("CustomName"))
    166        {
    167            this.field_94130_e = par1NBTTagCompound.getString("CustomName");
    168        }
    169    }
    170
    171    /**
    172     * Writes a tile entity to NBT.
    173     */
    174    public void writeToNBT(NBTTagCompound par1NBTTagCompound)
    175    {
    176        super.writeToNBT(par1NBTTagCompound);
    177        par1NBTTagCompound.setShort("BurnTime", (short)this.furnaceBurnTime);
    178        par1NBTTagCompound.setShort("CookTime", (short)this.furnaceCookTime);
    179        NBTTagList nbttaglist = new NBTTagList();
    180
    181        for (int i = 0; i < this.furnaceItemStacks.length; ++i)
    182        {
    183            if (this.furnaceItemStacks[i] != null)
    184            {
    185                NBTTagCompound nbttagcompound1 = new NBTTagCompound();
    186                nbttagcompound1.setByte("Slot", (byte)i);
    187                this.furnaceItemStacks[i].writeToNBT(nbttagcompound1);
    188                nbttaglist.appendTag(nbttagcompound1);
    189            }
    190        }
    191
    192        par1NBTTagCompound.setTag("Items", nbttaglist);
    193
    194        if (this.func_94042_c())
    195        {
    196            par1NBTTagCompound.setString("CustomName", this.field_94130_e);
    197        }
    198    }
    199
    200    /**
    201     * Returns the maximum stack size for a inventory slot. Seems to always be 64, possibly will be extended. *Isn't
    202     * this more of a set than a get?*
    203     */
    204    public int getInventoryStackLimit()
    205    {
    206        return 64;
    207    }
    208
    209    @SideOnly(Side.CLIENT)
    210
    211    /**
    212     * Returns an integer between 0 and the passed value representing how close the current item is to being completely
    213     * cooked
    214     */
    215    public int getCookProgressScaled(int par1)
    216    {
    217        return this.furnaceCookTime * par1 / 200;
    218    }
    219
    220    @SideOnly(Side.CLIENT)
    221
    222    /**
    223     * Returns an integer between 0 and the passed value representing how much burn time is left on the current fuel
    224     * item, where 0 means that the item is exhausted and the passed value means that the item is fresh
    225     */
    226    public int getBurnTimeRemainingScaled(int par1)
    227    {
    228        if (this.currentItemBurnTime == 0)
    229        {
    230            this.currentItemBurnTime = 200;
    231        }
    232
    233        return this.furnaceBurnTime * par1 / this.currentItemBurnTime;
    234    }
    235
    236    /**
    237     * Returns true if the furnace is currently burning
    238     */
    239    public boolean isBurning()
    240    {
    241        return this.furnaceBurnTime > 0;
    242    }
    243
    244    /**
    245     * Allows the entity to update its state. Overridden in most subclasses, e.g. the mob spawner uses this to count
    246     * ticks and creates a new spawn inside its implementation.
    247     */
    248    public void updateEntity()
    249    {
    250        boolean flag = this.furnaceBurnTime > 0;
    251        boolean flag1 = false;
    252
    253        if (this.furnaceBurnTime > 0)
    254        {
    255            --this.furnaceBurnTime;
    256        }
    257
    258        if (!this.worldObj.isRemote)
    259        {
    260            if (this.furnaceBurnTime == 0 && this.canSmelt())
    261            {
    262                this.currentItemBurnTime = this.furnaceBurnTime = getItemBurnTime(this.furnaceItemStacks[1]);
    263
    264                if (this.furnaceBurnTime > 0)
    265                {
    266                    flag1 = true;
    267
    268                    if (this.furnaceItemStacks[1] != null)
    269                    {
    270                        --this.furnaceItemStacks[1].stackSize;
    271
    272                        if (this.furnaceItemStacks[1].stackSize == 0)
    273                        {
    274                            this.furnaceItemStacks[1] = this.furnaceItemStacks[1].getItem().getContainerItemStack(furnaceItemStacks[1]);
    275                        }
    276                    }
    277                }
    278            }
    279
    280            if (this.isBurning() && this.canSmelt())
    281            {
    282                ++this.furnaceCookTime;
    283
    284                if (this.furnaceCookTime == 200)
    285                {
    286                    this.furnaceCookTime = 0;
    287                    this.smeltItem();
    288                    flag1 = true;
    289                }
    290            }
    291            else
    292            {
    293                this.furnaceCookTime = 0;
    294            }
    295
    296            if (flag != this.furnaceBurnTime > 0)
    297            {
    298                flag1 = true;
    299                BlockFurnace.updateFurnaceBlockState(this.furnaceBurnTime > 0, this.worldObj, this.xCoord, this.yCoord, this.zCoord);
    300            }
    301        }
    302
    303        if (flag1)
    304        {
    305            this.onInventoryChanged();
    306        }
    307    }
    308
    309    /**
    310     * Returns true if the furnace can smelt an item, i.e. has a source item, destination stack isn't full, etc.
    311     */
    312    private boolean canSmelt()
    313    {
    314        if (this.furnaceItemStacks[0] == null)
    315        {
    316            return false;
    317        }
    318        else
    319        {
    320            ItemStack itemstack = FurnaceRecipes.smelting().getSmeltingResult(this.furnaceItemStacks[0]);
    321            if (itemstack == null) return false;
    322            if (this.furnaceItemStacks[2] == null) return true;
    323            if (!this.furnaceItemStacks[2].isItemEqual(itemstack)) return false;
    324            int result = furnaceItemStacks[2].stackSize + itemstack.stackSize;
    325            return (result <= getInventoryStackLimit() && result <= itemstack.getMaxStackSize());
    326        }
    327    }
    328
    329    /**
    330     * Turn one item from the furnace source stack into the appropriate smelted item in the furnace result stack
    331     */
    332    public void smeltItem()
    333    {
    334        if (this.canSmelt())
    335        {
    336            ItemStack itemstack = FurnaceRecipes.smelting().getSmeltingResult(this.furnaceItemStacks[0]);
    337
    338            if (this.furnaceItemStacks[2] == null)
    339            {
    340                this.furnaceItemStacks[2] = itemstack.copy();
    341            }
    342            else if (this.furnaceItemStacks[2].isItemEqual(itemstack))
    343            {
    344                furnaceItemStacks[2].stackSize += itemstack.stackSize;
    345            }
    346
    347            --this.furnaceItemStacks[0].stackSize;
    348
    349            if (this.furnaceItemStacks[0].stackSize <= 0)
    350            {
    351                this.furnaceItemStacks[0] = null;
    352            }
    353        }
    354    }
    355
    356    /**
    357     * Returns the number of ticks that the supplied fuel item will keep the furnace burning, or 0 if the item isn't
    358     * fuel
    359     */
    360    public static int getItemBurnTime(ItemStack par0ItemStack)
    361    {
    362        if (par0ItemStack == null)
    363        {
    364            return 0;
    365        }
    366        else
    367        {
    368            int i = par0ItemStack.getItem().itemID;
    369            Item item = par0ItemStack.getItem();
    370
    371            if (par0ItemStack.getItem() instanceof ItemBlock && Block.blocksList[i] != null)
    372            {
    373                Block block = Block.blocksList[i];
    374
    375                if (block == Block.woodSingleSlab)
    376                {
    377                    return 150;
    378                }
    379
    380                if (block.blockMaterial == Material.wood)
    381                {
    382                    return 300;
    383                }
    384            }
    385
    386            if (item instanceof ItemTool && ((ItemTool) item).getToolMaterialName().equals("WOOD")) return 200;
    387            if (item instanceof ItemSword && ((ItemSword) item).getToolMaterialName().equals("WOOD")) return 200;
    388            if (item instanceof ItemHoe && ((ItemHoe) item).func_77842_f().equals("WOOD")) return 200;
    389            if (i == Item.stick.itemID) return 100;
    390            if (i == Item.coal.itemID) return 1600;
    391            if (i == Item.bucketLava.itemID) return 20000;
    392            if (i == Block.sapling.blockID) return 100;
    393            if (i == Item.blazeRod.itemID) return 2400;
    394            return GameRegistry.getFuelValue(par0ItemStack);
    395        }
    396    }
    397
    398    /**
    399     * Return true if item is a fuel source (getItemBurnTime() > 0).
    400     */
    401    public static boolean isItemFuel(ItemStack par0ItemStack)
    402    {
    403        return getItemBurnTime(par0ItemStack) > 0;
    404    }
    405
    406    /**
    407     * Do not make give this method the name canInteractWith because it clashes with Container
    408     */
    409    public boolean isUseableByPlayer(EntityPlayer par1EntityPlayer)
    410    {
    411        return this.worldObj.getBlockTileEntity(this.xCoord, this.yCoord, this.zCoord) != this ? false : par1EntityPlayer.getDistanceSq((double)this.xCoord + 0.5D, (double)this.yCoord + 0.5D, (double)this.zCoord + 0.5D) <= 64.0D;
    412    }
    413
    414    public void openChest() {}
    415
    416    public void closeChest() {}
    417
    418    public boolean func_94041_b(int par1, ItemStack par2ItemStack)
    419    {
    420        return par1 == 2 ? false : (par1 == 1 ? isItemFuel(par2ItemStack) : true);
    421    }
    422
    423    public int func_94127_c(int par1)
    424    {
    425        return par1 == 0 ? 2 : (par1 == 1 ? 0 : 1);
    426    }
    427
    428    public int func_94128_d(int par1)
    429    {
    430        return 1;
    431    }
    432
    433    /***********************************************************************************
    434     * This function is here for compatibilities sake, Modders should Check for
    435     * Sided before ContainerWorldly, Vanilla Minecraft does not follow the sided standard
    436     * that Modding has for a while.
    437     *
    438     * In vanilla:
    439     *
    440     *   Top: Ores
    441     *   Sides: Fuel
    442     *   Bottom: Output
    443     *
    444     * Standard Modding:
    445     *   Top: Ores
    446     *   Sides: Output
    447     *   Bottom: Fuel
    448     *
    449     * The Modding one is designed after the GUI, the vanilla one is designed because its
    450     * intended use is for the hopper, which logically would take things in from the top.
    451     *
    452     * This will possibly be removed in future updates, and make vanilla the definitive
    453     * standard.
    454     */
    455
    456    @Override
    457    public int getStartInventorySide(ForgeDirection side)
    458    {
    459        if (ForgeDummyContainer.legacyFurnaceSides)
    460        {
    461            if (side == ForgeDirection.DOWN) return 1;
    462            if (side == ForgeDirection.UP) return 0;
    463            return 2;
    464        }
    465        else
    466        {
    467            if (side == ForgeDirection.DOWN) return 2;
    468            if (side == ForgeDirection.UP) return 0;
    469            return 1;
    470        }
    471    }
    472
    473    @Override
    474    public int getSizeInventorySide(ForgeDirection side)
    475    {
    476        return 1;
    477    }
    478}