    001    package net.minecraft.src;
    002
    003    import cpw.mods.fml.common.Side;
    004    import cpw.mods.fml.common.asm.SideOnly;
    005    import java.util.List;
    006
    007    import net.minecraftforge.common.ISidedInventory;
    008    import net.minecraftforge.common.ForgeDirection;
    009
    010    public class TileEntityBrewingStand extends TileEntity implements IInventory, ISidedInventory
    011    {
    012        /** The itemstacks currently placed in the slots of the brewing stand */
    013        private ItemStack[] brewingItemStacks = new ItemStack[4];
    014        private int brewTime;
    015
    016        /**
    017         * an integer with each bit specifying whether that slot of the stand contains a potion
    018         */
    019        private int filledSlots;
    020        private int ingredientID;
    021
    022        /**
    023         * Returns the name of the inventory.
    024         */
    025        public String getInvName()
    026        {
    027            return "container.brewing";
    028        }
    029
    030        /**
    031         * Returns the number of slots in the inventory.
    032         */
    033        public int getSizeInventory()
    034        {
    035            return this.brewingItemStacks.length;
    036        }
    037
    038        /**
    039         * Allows the entity to update its state. Overridden in most subclasses, e.g. the mob spawner uses this to count
    040         * ticks and creates a new spawn inside its implementation.
    041         */
    042        public void updateEntity()
    043        {
    044            if (this.brewTime > 0)
    045            {
    046                --this.brewTime;
    047
    048                if (this.brewTime == 0)
    049                {
    050                    this.brewPotions();
    051                    this.onInventoryChanged();
    052                }
    053                else if (!this.canBrew())
    054                {
    055                    this.brewTime = 0;
    056                    this.onInventoryChanged();
    057                }
    058                else if (this.ingredientID != this.brewingItemStacks[3].itemID)
    059                {
    060                    this.brewTime = 0;
    061                    this.onInventoryChanged();
    062                }
    063            }
    064            else if (this.canBrew())
    065            {
    066                this.brewTime = 400;
    067                this.ingredientID = this.brewingItemStacks[3].itemID;
    068            }
    069
    070            int var1 = this.getFilledSlots();
    071
    072            if (var1 != this.filledSlots)
    073            {
    074                this.filledSlots = var1;
    075                this.worldObj.setBlockMetadataWithNotify(this.xCoord, this.yCoord, this.zCoord, var1);
    076            }
    077
    078            super.updateEntity();
    079        }
    080
    081        public int getBrewTime()
    082        {
    083            return this.brewTime;
    084        }
    085
    086        private boolean canBrew()
    087        {
    088            if (this.brewingItemStacks[3] != null && this.brewingItemStacks[3].stackSize > 0)
    089            {
    090                ItemStack var1 = this.brewingItemStacks[3];
    091
    092                if (!Item.itemsList[var1.itemID].isPotionIngredient())
    093                {
    094                    return false;
    095                }
    096                else
    097                {
    098                    boolean var2 = false;
    099
    100                    for (int var3 = 0; var3 < 3; ++var3)
    101                    {
    102                        if (this.brewingItemStacks[var3] != null && this.brewingItemStacks[var3].itemID == Item.potion.shiftedIndex)
    103                        {
    104                            int var4 = this.brewingItemStacks[var3].getItemDamage();
    105                            int var5 = this.getPotionResult(var4, var1);
    106
    107                            if (!ItemPotion.isSplash(var4) && ItemPotion.isSplash(var5))
    108                            {
    109                                var2 = true;
    110                                break;
    111                            }
    112
    113                            List var6 = Item.potion.getEffects(var4);
    114                            List var7 = Item.potion.getEffects(var5);
    115
    116                            if ((var4 <= 0 || var6 != var7) && (var6 == null || !var6.equals(var7) && var7 != null) && var4 != var5)
    117                            {
    118                                var2 = true;
    119                                break;
    120                            }
    121                        }
    122                    }
    123
    124                    return var2;
    125                }
    126            }
    127            else
    128            {
    129                return false;
    130            }
    131        }
    132
    133        private void brewPotions()
    134        {
    135            if (this.canBrew())
    136            {
    137                ItemStack var1 = this.brewingItemStacks[3];
    138
    139                for (int var2 = 0; var2 < 3; ++var2)
    140                {
    141                    if (this.brewingItemStacks[var2] != null && this.brewingItemStacks[var2].itemID == Item.potion.shiftedIndex)
    142                    {
    143                        int var3 = this.brewingItemStacks[var2].getItemDamage();
    144                        int var4 = this.getPotionResult(var3, var1);
    145                        List var5 = Item.potion.getEffects(var3);
    146                        List var6 = Item.potion.getEffects(var4);
    147
    148                        if ((var3 <= 0 || var5 != var6) && (var5 == null || !var5.equals(var6) && var6 != null))
    149                        {
    150                            if (var3 != var4)
    151                            {
    152                                this.brewingItemStacks[var2].setItemDamage(var4);
    153                            }
    154                        }
    155                        else if (!ItemPotion.isSplash(var3) && ItemPotion.isSplash(var4))
    156                        {
    157                            this.brewingItemStacks[var2].setItemDamage(var4);
    158                        }
    159                    }
    160                }
    161
    162                if (Item.itemsList[var1.itemID].hasContainerItem())
    163                {
    164                    this.brewingItemStacks[3] = Item.itemsList[var1.itemID].getContainerItemStack(brewingItemStacks[3]);
    165                }
    166                else
    167                {
    168                    --this.brewingItemStacks[3].stackSize;
    169
    170                    if (this.brewingItemStacks[3].stackSize <= 0)
    171                    {
    172                        this.brewingItemStacks[3] = null;
    173                    }
    174                }
    175            }
    176        }
    177
    178        /**
    179         * The result of brewing a potion of the specified damage value with an ingredient itemstack.
    180         */
    181        private int getPotionResult(int par1, ItemStack par2ItemStack)
    182        {
    183            return par2ItemStack == null ? par1 : (Item.itemsList[par2ItemStack.itemID].isPotionIngredient() ? PotionHelper.applyIngredient(par1, Item.itemsList[par2ItemStack.itemID].getPotionEffect()) : par1);
    184        }
    185
    186        /**
    187         * Reads a tile entity from NBT.
    188         */
    189        public void readFromNBT(NBTTagCompound par1NBTTagCompound)
    190        {
    191            super.readFromNBT(par1NBTTagCompound);
    192            NBTTagList var2 = par1NBTTagCompound.getTagList("Items");
    193            this.brewingItemStacks = new ItemStack[this.getSizeInventory()];
    194
    195            for (int var3 = 0; var3 < var2.tagCount(); ++var3)
    196            {
    197                NBTTagCompound var4 = (NBTTagCompound)var2.tagAt(var3);
    198                byte var5 = var4.getByte("Slot");
    199
    200                if (var5 >= 0 && var5 < this.brewingItemStacks.length)
    201                {
    202                    this.brewingItemStacks[var5] = ItemStack.loadItemStackFromNBT(var4);
    203                }
    204            }
    205
    206            this.brewTime = par1NBTTagCompound.getShort("BrewTime");
    207        }
    208
    209        /**
    210         * Writes a tile entity to NBT.
    211         */
    212        public void writeToNBT(NBTTagCompound par1NBTTagCompound)
    213        {
    214            super.writeToNBT(par1NBTTagCompound);
    215            par1NBTTagCompound.setShort("BrewTime", (short)this.brewTime);
    216            NBTTagList var2 = new NBTTagList();
    217
    218            for (int var3 = 0; var3 < this.brewingItemStacks.length; ++var3)
    219            {
    220                if (this.brewingItemStacks[var3] != null)
    221                {
    222                    NBTTagCompound var4 = new NBTTagCompound();
    223                    var4.setByte("Slot", (byte)var3);
    224                    this.brewingItemStacks[var3].writeToNBT(var4);
    225                    var2.appendTag(var4);
    226                }
    227            }
    228
    229            par1NBTTagCompound.setTag("Items", var2);
    230        }
    231
    232        /**
    233         * Returns the stack in slot i
    234         */
    235        public ItemStack getStackInSlot(int par1)
    236        {
    237            return par1 >= 0 && par1 < this.brewingItemStacks.length ? this.brewingItemStacks[par1] : null;
    238        }
    239
    240        /**
    241         * Removes from an inventory slot (first arg) up to a specified number (second arg) of items and returns them in a
    242         * new stack.
    243         */
    244        public ItemStack decrStackSize(int par1, int par2)
    245        {
    246            if (par1 >= 0 && par1 < this.brewingItemStacks.length)
    247            {
    248                ItemStack var3 = this.brewingItemStacks[par1];
    249                this.brewingItemStacks[par1] = null;
    250                return var3;
    251            }
    252            else
    253            {
    254                return null;
    255            }
    256        }
    257
    258        /**
    259         * When some containers are closed they call this on each slot, then drop whatever it returns as an EntityItem -
    260         * like when you close a workbench GUI.
    261         */
    262        public ItemStack getStackInSlotOnClosing(int par1)
    263        {
    264            if (par1 >= 0 && par1 < this.brewingItemStacks.length)
    265            {
    266                ItemStack var2 = this.brewingItemStacks[par1];
    267                this.brewingItemStacks[par1] = null;
    268                return var2;
    269            }
    270            else
    271            {
    272                return null;
    273            }
    274        }
    275
    276        /**
    277         * Sets the given item stack to the specified slot in the inventory (can be crafting or armor sections).
    278         */
    279        public void setInventorySlotContents(int par1, ItemStack par2ItemStack)
    280        {
    281            if (par1 >= 0 && par1 < this.brewingItemStacks.length)
    282            {
    283                this.brewingItemStacks[par1] = par2ItemStack;
    284            }
    285        }
    286
    287        /**
    288         * Returns the maximum stack size for a inventory slot. Seems to always be 64, possibly will be extended. *Isn't
    289         * this more of a set than a get?*
    290         */
    291        public int getInventoryStackLimit()
    292        {
    293            return 1;
    294        }
    295
    296        /**
    297         * Do not make give this method the name canInteractWith because it clashes with Container
    298         */
    299        public boolean isUseableByPlayer(EntityPlayer par1EntityPlayer)
    300        {
    301            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;
    302        }
    303
    304        public void openChest() {}
    305
    306        public void closeChest() {}
    307
    308        @SideOnly(Side.CLIENT)
    309        public void setBrewTime(int par1)
    310        {
    311            this.brewTime = par1;
    312        }
    313
    314        /**
    315         * returns an integer with each bit specifying wether that slot of the stand contains a potion
    316         */
    317        public int getFilledSlots()
    318        {
    319            int var1 = 0;
    320
    321            for (int var2 = 0; var2 < 3; ++var2)
    322            {
    323                if (this.brewingItemStacks[var2] != null)
    324                {
    325                    var1 |= 1 << var2;
    326                }
    327            }
    328
    329            return var1;
    330        }
    331
    332        @Override
    333        public int getStartInventorySide(ForgeDirection side)
    334        {
    335            return (side == ForgeDirection.UP ? 3 : 0);
    336        }
    337
    338        @Override
    339        public int getSizeInventorySide(ForgeDirection side)
    340        {
    341            return (side == ForgeDirection.UP ? 1 : 3);
    342        }
    343    }