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.Random;
006    
007    public class BlockFurnace extends BlockContainer
008    {
009        /**
010         * Is the random generator used by furnace to drop the inventory contents in random directions.
011         */
012        private Random furnaceRand = new Random();
013    
014        /** True if this is an active furnace, false if idle */
015        private final boolean isActive;
016    
017        /**
018         * This flag is used to prevent the furnace inventory to be dropped upon block removal, is used internally when the
019         * furnace block changes from idle to active and vice-versa.
020         */
021        private static boolean keepFurnaceInventory = false;
022    
023        protected BlockFurnace(int par1, boolean par2)
024        {
025            super(par1, Material.rock);
026            this.isActive = par2;
027            this.blockIndexInTexture = 45;
028        }
029    
030        /**
031         * Returns the ID of the items to drop on destruction.
032         */
033        public int idDropped(int par1, Random par2Random, int par3)
034        {
035            return Block.stoneOvenIdle.blockID;
036        }
037    
038        /**
039         * Called whenever the block is added into the world. Args: world, x, y, z
040         */
041        public void onBlockAdded(World par1World, int par2, int par3, int par4)
042        {
043            super.onBlockAdded(par1World, par2, par3, par4);
044            this.setDefaultDirection(par1World, par2, par3, par4);
045        }
046    
047        /**
048         * set a blocks direction
049         */
050        private void setDefaultDirection(World par1World, int par2, int par3, int par4)
051        {
052            if (!par1World.isRemote)
053            {
054                int var5 = par1World.getBlockId(par2, par3, par4 - 1);
055                int var6 = par1World.getBlockId(par2, par3, par4 + 1);
056                int var7 = par1World.getBlockId(par2 - 1, par3, par4);
057                int var8 = par1World.getBlockId(par2 + 1, par3, par4);
058                byte var9 = 3;
059    
060                if (Block.opaqueCubeLookup[var5] && !Block.opaqueCubeLookup[var6])
061                {
062                    var9 = 3;
063                }
064    
065                if (Block.opaqueCubeLookup[var6] && !Block.opaqueCubeLookup[var5])
066                {
067                    var9 = 2;
068                }
069    
070                if (Block.opaqueCubeLookup[var7] && !Block.opaqueCubeLookup[var8])
071                {
072                    var9 = 5;
073                }
074    
075                if (Block.opaqueCubeLookup[var8] && !Block.opaqueCubeLookup[var7])
076                {
077                    var9 = 4;
078                }
079    
080                par1World.setBlockMetadataWithNotify(par2, par3, par4, var9);
081            }
082        }
083    
084        @SideOnly(Side.CLIENT)
085    
086        /**
087         * Retrieves the block texture to use based on the display side. Args: iBlockAccess, x, y, z, side
088         */
089        public int getBlockTexture(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
090        {
091            if (par5 == 1)
092            {
093                return this.blockIndexInTexture + 17;
094            }
095            else if (par5 == 0)
096            {
097                return this.blockIndexInTexture + 17;
098            }
099            else
100            {
101                int var6 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
102                return par5 != var6 ? this.blockIndexInTexture : (this.isActive ? this.blockIndexInTexture + 16 : this.blockIndexInTexture - 1);
103            }
104        }
105    
106        @SideOnly(Side.CLIENT)
107    
108        /**
109         * A randomly called display update to be able to add particles or other items for display
110         */
111        public void randomDisplayTick(World par1World, int par2, int par3, int par4, Random par5Random)
112        {
113            if (this.isActive)
114            {
115                int var6 = par1World.getBlockMetadata(par2, par3, par4);
116                float var7 = (float)par2 + 0.5F;
117                float var8 = (float)par3 + 0.0F + par5Random.nextFloat() * 6.0F / 16.0F;
118                float var9 = (float)par4 + 0.5F;
119                float var10 = 0.52F;
120                float var11 = par5Random.nextFloat() * 0.6F - 0.3F;
121    
122                if (var6 == 4)
123                {
124                    par1World.spawnParticle("smoke", (double)(var7 - var10), (double)var8, (double)(var9 + var11), 0.0D, 0.0D, 0.0D);
125                    par1World.spawnParticle("flame", (double)(var7 - var10), (double)var8, (double)(var9 + var11), 0.0D, 0.0D, 0.0D);
126                }
127                else if (var6 == 5)
128                {
129                    par1World.spawnParticle("smoke", (double)(var7 + var10), (double)var8, (double)(var9 + var11), 0.0D, 0.0D, 0.0D);
130                    par1World.spawnParticle("flame", (double)(var7 + var10), (double)var8, (double)(var9 + var11), 0.0D, 0.0D, 0.0D);
131                }
132                else if (var6 == 2)
133                {
134                    par1World.spawnParticle("smoke", (double)(var7 + var11), (double)var8, (double)(var9 - var10), 0.0D, 0.0D, 0.0D);
135                    par1World.spawnParticle("flame", (double)(var7 + var11), (double)var8, (double)(var9 - var10), 0.0D, 0.0D, 0.0D);
136                }
137                else if (var6 == 3)
138                {
139                    par1World.spawnParticle("smoke", (double)(var7 + var11), (double)var8, (double)(var9 + var10), 0.0D, 0.0D, 0.0D);
140                    par1World.spawnParticle("flame", (double)(var7 + var11), (double)var8, (double)(var9 + var10), 0.0D, 0.0D, 0.0D);
141                }
142            }
143        }
144    
145        /**
146         * Returns the block texture based on the side being looked at.  Args: side
147         */
148        public int getBlockTextureFromSide(int par1)
149        {
150            return par1 == 1 ? this.blockIndexInTexture + 17 : (par1 == 0 ? this.blockIndexInTexture + 17 : (par1 == 3 ? this.blockIndexInTexture - 1 : this.blockIndexInTexture));
151        }
152    
153        /**
154         * Called upon block activation (right click on the block.)
155         */
156        public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
157        {
158            if (par1World.isRemote)
159            {
160                return true;
161            }
162            else
163            {
164                TileEntityFurnace var10 = (TileEntityFurnace)par1World.getBlockTileEntity(par2, par3, par4);
165    
166                if (var10 != null)
167                {
168                    par5EntityPlayer.displayGUIFurnace(var10);
169                }
170    
171                return true;
172            }
173        }
174    
175        /**
176         * Update which block ID the furnace is using depending on whether or not it is burning
177         */
178        public static void updateFurnaceBlockState(boolean par0, World par1World, int par2, int par3, int par4)
179        {
180            int var5 = par1World.getBlockMetadata(par2, par3, par4);
181            TileEntity var6 = par1World.getBlockTileEntity(par2, par3, par4);
182            keepFurnaceInventory = true;
183    
184            if (par0)
185            {
186                par1World.setBlockWithNotify(par2, par3, par4, Block.stoneOvenActive.blockID);
187            }
188            else
189            {
190                par1World.setBlockWithNotify(par2, par3, par4, Block.stoneOvenIdle.blockID);
191            }
192    
193            keepFurnaceInventory = false;
194            par1World.setBlockMetadataWithNotify(par2, par3, par4, var5);
195    
196            if (var6 != null)
197            {
198                var6.validate();
199                par1World.setBlockTileEntity(par2, par3, par4, var6);
200            }
201        }
202    
203        /**
204         * Returns a new instance of a block's tile entity class. Called on placing the block.
205         */
206        public TileEntity createNewTileEntity(World par1World)
207        {
208            return new TileEntityFurnace();
209        }
210    
211        /**
212         * Called when the block is placed in the world.
213         */
214        public void onBlockPlacedBy(World par1World, int par2, int par3, int par4, EntityLiving par5EntityLiving)
215        {
216            int var6 = MathHelper.floor_double((double)(par5EntityLiving.rotationYaw * 4.0F / 360.0F) + 0.5D) & 3;
217    
218            if (var6 == 0)
219            {
220                par1World.setBlockMetadataWithNotify(par2, par3, par4, 2);
221            }
222    
223            if (var6 == 1)
224            {
225                par1World.setBlockMetadataWithNotify(par2, par3, par4, 5);
226            }
227    
228            if (var6 == 2)
229            {
230                par1World.setBlockMetadataWithNotify(par2, par3, par4, 3);
231            }
232    
233            if (var6 == 3)
234            {
235                par1World.setBlockMetadataWithNotify(par2, par3, par4, 4);
236            }
237        }
238    
239        /**
240         * ejects contained items into the world, and notifies neighbours of an update, as appropriate
241         */
242        public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
243        {
244            if (!keepFurnaceInventory)
245            {
246                TileEntityFurnace var7 = (TileEntityFurnace)par1World.getBlockTileEntity(par2, par3, par4);
247    
248                if (var7 != null)
249                {
250                    for (int var8 = 0; var8 < var7.getSizeInventory(); ++var8)
251                    {
252                        ItemStack var9 = var7.getStackInSlot(var8);
253    
254                        if (var9 != null)
255                        {
256                            float var10 = this.furnaceRand.nextFloat() * 0.8F + 0.1F;
257                            float var11 = this.furnaceRand.nextFloat() * 0.8F + 0.1F;
258                            float var12 = this.furnaceRand.nextFloat() * 0.8F + 0.1F;
259    
260                            while (var9.stackSize > 0)
261                            {
262                                int var13 = this.furnaceRand.nextInt(21) + 10;
263    
264                                if (var13 > var9.stackSize)
265                                {
266                                    var13 = var9.stackSize;
267                                }
268    
269                                var9.stackSize -= var13;
270                                EntityItem var14 = new EntityItem(par1World, (double)((float)par2 + var10), (double)((float)par3 + var11), (double)((float)par4 + var12), new ItemStack(var9.itemID, var13, var9.getItemDamage()));
271    
272                                if (var9.hasTagCompound())
273                                {
274                                    var14.item.setTagCompound((NBTTagCompound)var9.getTagCompound().copy());
275                                }
276    
277                                float var15 = 0.05F;
278                                var14.motionX = (double)((float)this.furnaceRand.nextGaussian() * var15);
279                                var14.motionY = (double)((float)this.furnaceRand.nextGaussian() * var15 + 0.2F);
280                                var14.motionZ = (double)((float)this.furnaceRand.nextGaussian() * var15);
281                                par1World.spawnEntityInWorld(var14);
282                            }
283                        }
284                    }
285                }
286            }
287    
288            super.breakBlock(par1World, par2, par3, par4, par5, par6);
289        }
290    }