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.IInventory;
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;
020
021import net.minecraftforge.common.ForgeDirection;
022import net.minecraftforge.common.ISidedInventory;
023
024public class TileEntityFurnace extends TileEntity implements IInventory, ISidedInventory
025{
026    /**
027     * The ItemStacks that hold the items currently being used in the furnace
028     */
029    private ItemStack[] furnaceItemStacks = new ItemStack[3];
030
031    /** The number of ticks that the furnace will keep burning */
032    public int furnaceBurnTime = 0;
033
034    /**
035     * The number of ticks that a fresh copy of the currently-burning item would keep the furnace burning for
036     */
037    public int currentItemBurnTime = 0;
038
039    /** The number of ticks that the current item has been cooking for */
040    public int furnaceCookTime = 0;
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 var3;
067
068            if (this.furnaceItemStacks[par1].stackSize <= par2)
069            {
070                var3 = this.furnaceItemStacks[par1];
071                this.furnaceItemStacks[par1] = null;
072                return var3;
073            }
074            else
075            {
076                var3 = this.furnaceItemStacks[par1].splitStack(par2);
077
078                if (this.furnaceItemStacks[par1].stackSize == 0)
079                {
080                    this.furnaceItemStacks[par1] = null;
081                }
082
083                return var3;
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 var2 = this.furnaceItemStacks[par1];
101            this.furnaceItemStacks[par1] = null;
102            return var2;
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 "container.furnace";
129    }
130
131    /**
132     * Reads a tile entity from NBT.
133     */
134    public void readFromNBT(NBTTagCompound par1NBTTagCompound)
135    {
136        super.readFromNBT(par1NBTTagCompound);
137        NBTTagList var2 = par1NBTTagCompound.getTagList("Items");
138        this.furnaceItemStacks = new ItemStack[this.getSizeInventory()];
139
140        for (int var3 = 0; var3 < var2.tagCount(); ++var3)
141        {
142            NBTTagCompound var4 = (NBTTagCompound)var2.tagAt(var3);
143            byte var5 = var4.getByte("Slot");
144
145            if (var5 >= 0 && var5 < this.furnaceItemStacks.length)
146            {
147                this.furnaceItemStacks[var5] = ItemStack.loadItemStackFromNBT(var4);
148            }
149        }
150
151        this.furnaceBurnTime = par1NBTTagCompound.getShort("BurnTime");
152        this.furnaceCookTime = par1NBTTagCompound.getShort("CookTime");
153        this.currentItemBurnTime = getItemBurnTime(this.furnaceItemStacks[1]);
154    }
155
156    /**
157     * Writes a tile entity to NBT.
158     */
159    public void writeToNBT(NBTTagCompound par1NBTTagCompound)
160    {
161        super.writeToNBT(par1NBTTagCompound);
162        par1NBTTagCompound.setShort("BurnTime", (short)this.furnaceBurnTime);
163        par1NBTTagCompound.setShort("CookTime", (short)this.furnaceCookTime);
164        NBTTagList var2 = new NBTTagList();
165
166        for (int var3 = 0; var3 < this.furnaceItemStacks.length; ++var3)
167        {
168            if (this.furnaceItemStacks[var3] != null)
169            {
170                NBTTagCompound var4 = new NBTTagCompound();
171                var4.setByte("Slot", (byte)var3);
172                this.furnaceItemStacks[var3].writeToNBT(var4);
173                var2.appendTag(var4);
174            }
175        }
176
177        par1NBTTagCompound.setTag("Items", var2);
178    }
179
180    /**
181     * Returns the maximum stack size for a inventory slot. Seems to always be 64, possibly will be extended. *Isn't
182     * this more of a set than a get?*
183     */
184    public int getInventoryStackLimit()
185    {
186        return 64;
187    }
188
189    @SideOnly(Side.CLIENT)
190
191    /**
192     * Returns an integer between 0 and the passed value representing how close the current item is to being completely
193     * cooked
194     */
195    public int getCookProgressScaled(int par1)
196    {
197        return this.furnaceCookTime * par1 / 200;
198    }
199
200    @SideOnly(Side.CLIENT)
201
202    /**
203     * Returns an integer between 0 and the passed value representing how much burn time is left on the current fuel
204     * item, where 0 means that the item is exhausted and the passed value means that the item is fresh
205     */
206    public int getBurnTimeRemainingScaled(int par1)
207    {
208        if (this.currentItemBurnTime == 0)
209        {
210            this.currentItemBurnTime = 200;
211        }
212
213        return this.furnaceBurnTime * par1 / this.currentItemBurnTime;
214    }
215
216    /**
217     * Returns true if the furnace is currently burning
218     */
219    public boolean isBurning()
220    {
221        return this.furnaceBurnTime > 0;
222    }
223
224    /**
225     * Allows the entity to update its state. Overridden in most subclasses, e.g. the mob spawner uses this to count
226     * ticks and creates a new spawn inside its implementation.
227     */
228    public void updateEntity()
229    {
230        boolean var1 = this.furnaceBurnTime > 0;
231        boolean var2 = false;
232
233        if (this.furnaceBurnTime > 0)
234        {
235            --this.furnaceBurnTime;
236        }
237
238        if (!this.worldObj.isRemote)
239        {
240            if (this.furnaceBurnTime == 0 && this.canSmelt())
241            {
242                this.currentItemBurnTime = this.furnaceBurnTime = getItemBurnTime(this.furnaceItemStacks[1]);
243
244                if (this.furnaceBurnTime > 0)
245                {
246                    var2 = true;
247
248                    if (this.furnaceItemStacks[1] != null)
249                    {
250                        --this.furnaceItemStacks[1].stackSize;
251
252                        if (this.furnaceItemStacks[1].stackSize == 0)
253                        {
254                            this.furnaceItemStacks[1] = this.furnaceItemStacks[1].getItem().getContainerItemStack(furnaceItemStacks[1]);
255                        }
256                    }
257                }
258            }
259
260            if (this.isBurning() && this.canSmelt())
261            {
262                ++this.furnaceCookTime;
263
264                if (this.furnaceCookTime == 200)
265                {
266                    this.furnaceCookTime = 0;
267                    this.smeltItem();
268                    var2 = true;
269                }
270            }
271            else
272            {
273                this.furnaceCookTime = 0;
274            }
275
276            if (var1 != this.furnaceBurnTime > 0)
277            {
278                var2 = true;
279                BlockFurnace.updateFurnaceBlockState(this.furnaceBurnTime > 0, this.worldObj, this.xCoord, this.yCoord, this.zCoord);
280            }
281        }
282
283        if (var2)
284        {
285            this.onInventoryChanged();
286        }
287    }
288
289    /**
290     * Returns true if the furnace can smelt an item, i.e. has a source item, destination stack isn't full, etc.
291     */
292    private boolean canSmelt()
293    {
294        if (this.furnaceItemStacks[0] == null)
295        {
296            return false;
297        }
298        else
299        {
300            ItemStack var1 = FurnaceRecipes.smelting().getSmeltingResult(this.furnaceItemStacks[0]);
301            if (var1 == null) return false;
302            if (this.furnaceItemStacks[2] == null) return true;
303            if (!this.furnaceItemStacks[2].isItemEqual(var1)) return false;
304            int result = furnaceItemStacks[2].stackSize + var1.stackSize;
305            return (result <= getInventoryStackLimit() && result <= var1.getMaxStackSize());
306        }
307    }
308
309    /**
310     * Turn one item from the furnace source stack into the appropriate smelted item in the furnace result stack
311     */
312    public void smeltItem()
313    {
314        if (this.canSmelt())
315        {
316            ItemStack var1 = FurnaceRecipes.smelting().getSmeltingResult(this.furnaceItemStacks[0]);
317
318            if (this.furnaceItemStacks[2] == null)
319            {
320                this.furnaceItemStacks[2] = var1.copy();
321            }
322            else if (this.furnaceItemStacks[2].isItemEqual(var1))
323            {
324                furnaceItemStacks[2].stackSize += var1.stackSize;
325            }
326
327            --this.furnaceItemStacks[0].stackSize;
328
329            if (this.furnaceItemStacks[0].stackSize <= 0)
330            {
331                this.furnaceItemStacks[0] = null;
332            }
333        }
334    }
335
336    /**
337     * Returns the number of ticks that the supplied fuel item will keep the furnace burning, or 0 if the item isn't
338     * fuel
339     */
340    public static int getItemBurnTime(ItemStack par0ItemStack)
341    {
342        if (par0ItemStack == null)
343        {
344            return 0;
345        }
346        else
347        {
348            int var1 = par0ItemStack.getItem().itemID;
349            Item var2 = par0ItemStack.getItem();
350
351            if (par0ItemStack.getItem() instanceof ItemBlock && Block.blocksList[var1] != null)
352            {
353                Block var3 = Block.blocksList[var1];
354
355                if (var3 == Block.woodSingleSlab)
356                {
357                    return 150;
358                }
359
360                if (var3.blockMaterial == Material.wood)
361                {
362                    return 300;
363                }
364            }
365
366            if (var2 instanceof ItemTool && ((ItemTool) var2).getToolMaterialName().equals("WOOD")) return 200;
367            if (var2 instanceof ItemSword && ((ItemSword) var2).getToolMaterialName().equals("WOOD")) return 200;
368            if (var2 instanceof ItemHoe && ((ItemHoe) var2).func_77842_f().equals("WOOD")) return 200;
369            if (var1 == Item.stick.itemID) return 100;
370            if (var1 == Item.coal.itemID) return 1600;
371            if (var1 == Item.bucketLava.itemID) return 20000;
372            if (var1 == Block.sapling.blockID) return 100;
373            if (var1 == Item.blazeRod.itemID) return 2400;
374            return GameRegistry.getFuelValue(par0ItemStack);
375        }
376    }
377
378    /**
379     * Return true if item is a fuel source (getItemBurnTime() > 0).
380     */
381    public static boolean isItemFuel(ItemStack par0ItemStack)
382    {
383        return getItemBurnTime(par0ItemStack) > 0;
384    }
385
386    /**
387     * Do not make give this method the name canInteractWith because it clashes with Container
388     */
389    public boolean isUseableByPlayer(EntityPlayer par1EntityPlayer)
390    {
391        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;
392    }
393
394    public void openChest() {}
395
396    public void closeChest() {}
397
398    @Override
399    public int getStartInventorySide(ForgeDirection side)
400    {
401        if (side == ForgeDirection.DOWN) return 1;
402        if (side == ForgeDirection.UP) return 0;
403        return 2;
404    }
405
406    @Override
407    public int getSizeInventorySide(ForgeDirection side)
408    {
409        return 1;
410    }
411}