    001    package net.minecraft.block;
    002
    003    import cpw.mods.fml.common.Side;
    004    import cpw.mods.fml.common.asm.SideOnly;
    005    import java.util.Random;
    006    import net.minecraft.block.material.Material;
    007    import net.minecraft.entity.EntityLiving;
    008    import net.minecraft.entity.item.EntityItem;
    009    import net.minecraft.entity.player.EntityPlayer;
    010    import net.minecraft.item.ItemStack;
    011    import net.minecraft.nbt.NBTTagCompound;
    012    import net.minecraft.tileentity.TileEntity;
    013    import net.minecraft.tileentity.TileEntityFurnace;
    014    import net.minecraft.util.MathHelper;
    015    import net.minecraft.world.IBlockAccess;
    016    import net.minecraft.world.World;
    017
    018    public class BlockFurnace extends BlockContainer
    019    {
    020        /**
    021         * Is the random generator used by furnace to drop the inventory contents in random directions.
    022         */
    023        private Random furnaceRand = new Random();
    024
    025        /** True if this is an active furnace, false if idle */
    026        private final boolean isActive;
    027
    028        /**
    029         * This flag is used to prevent the furnace inventory to be dropped upon block removal, is used internally when the
    030         * furnace block changes from idle to active and vice-versa.
    031         */
    032        private static boolean keepFurnaceInventory = false;
    033
    034        protected BlockFurnace(int par1, boolean par2)
    035        {
    036            super(par1, Material.rock);
    037            this.isActive = par2;
    038            this.blockIndexInTexture = 45;
    039        }
    040
    041        /**
    042         * Returns the ID of the items to drop on destruction.
    043         */
    044        public int idDropped(int par1, Random par2Random, int par3)
    045        {
    046            return Block.stoneOvenIdle.blockID;
    047        }
    048
    049        /**
    050         * Called whenever the block is added into the world. Args: world, x, y, z
    051         */
    052        public void onBlockAdded(World par1World, int par2, int par3, int par4)
    053        {
    054            super.onBlockAdded(par1World, par2, par3, par4);
    055            this.setDefaultDirection(par1World, par2, par3, par4);
    056        }
    057
    058        /**
    059         * set a blocks direction
    060         */
    061        private void setDefaultDirection(World par1World, int par2, int par3, int par4)
    062        {
    063            if (!par1World.isRemote)
    064            {
    065                int var5 = par1World.getBlockId(par2, par3, par4 - 1);
    066                int var6 = par1World.getBlockId(par2, par3, par4 + 1);
    067                int var7 = par1World.getBlockId(par2 - 1, par3, par4);
    068                int var8 = par1World.getBlockId(par2 + 1, par3, par4);
    069                byte var9 = 3;
    070
    071                if (Block.opaqueCubeLookup[var5] && !Block.opaqueCubeLookup[var6])
    072                {
    073                    var9 = 3;
    074                }
    075
    076                if (Block.opaqueCubeLookup[var6] && !Block.opaqueCubeLookup[var5])
    077                {
    078                    var9 = 2;
    079                }
    080
    081                if (Block.opaqueCubeLookup[var7] && !Block.opaqueCubeLookup[var8])
    082                {
    083                    var9 = 5;
    084                }
    085
    086                if (Block.opaqueCubeLookup[var8] && !Block.opaqueCubeLookup[var7])
    087                {
    088                    var9 = 4;
    089                }
    090
    091                par1World.setBlockMetadataWithNotify(par2, par3, par4, var9);
    092            }
    093        }
    094
    095        @SideOnly(Side.CLIENT)
    096
    097        /**
    098         * Retrieves the block texture to use based on the display side. Args: iBlockAccess, x, y, z, side
    099         */
    100        public int getBlockTexture(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    101        {
    102            if (par5 == 1)
    103            {
    104                return this.blockIndexInTexture + 17;
    105            }
    106            else if (par5 == 0)
    107            {
    108                return this.blockIndexInTexture + 17;
    109            }
    110            else
    111            {
    112                int var6 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
    113                return par5 != var6 ? this.blockIndexInTexture : (this.isActive ? this.blockIndexInTexture + 16 : this.blockIndexInTexture - 1);
    114            }
    115        }
    116
    117        @SideOnly(Side.CLIENT)
    118
    119        /**
    120         * A randomly called display update to be able to add particles or other items for display
    121         */
    122        public void randomDisplayTick(World par1World, int par2, int par3, int par4, Random par5Random)
    123        {
    124            if (this.isActive)
    125            {
    126                int var6 = par1World.getBlockMetadata(par2, par3, par4);
    127                float var7 = (float)par2 + 0.5F;
    128                float var8 = (float)par3 + 0.0F + par5Random.nextFloat() * 6.0F / 16.0F;
    129                float var9 = (float)par4 + 0.5F;
    130                float var10 = 0.52F;
    131                float var11 = par5Random.nextFloat() * 0.6F - 0.3F;
    132
    133                if (var6 == 4)
    134                {
    135                    par1World.spawnParticle("smoke", (double)(var7 - var10), (double)var8, (double)(var9 + var11), 0.0D, 0.0D, 0.0D);
    136                    par1World.spawnParticle("flame", (double)(var7 - var10), (double)var8, (double)(var9 + var11), 0.0D, 0.0D, 0.0D);
    137                }
    138                else if (var6 == 5)
    139                {
    140                    par1World.spawnParticle("smoke", (double)(var7 + var10), (double)var8, (double)(var9 + var11), 0.0D, 0.0D, 0.0D);
    141                    par1World.spawnParticle("flame", (double)(var7 + var10), (double)var8, (double)(var9 + var11), 0.0D, 0.0D, 0.0D);
    142                }
    143                else if (var6 == 2)
    144                {
    145                    par1World.spawnParticle("smoke", (double)(var7 + var11), (double)var8, (double)(var9 - var10), 0.0D, 0.0D, 0.0D);
    146                    par1World.spawnParticle("flame", (double)(var7 + var11), (double)var8, (double)(var9 - var10), 0.0D, 0.0D, 0.0D);
    147                }
    148                else if (var6 == 3)
    149                {
    150                    par1World.spawnParticle("smoke", (double)(var7 + var11), (double)var8, (double)(var9 + var10), 0.0D, 0.0D, 0.0D);
    151                    par1World.spawnParticle("flame", (double)(var7 + var11), (double)var8, (double)(var9 + var10), 0.0D, 0.0D, 0.0D);
    152                }
    153            }
    154        }
    155
    156        /**
    157         * Returns the block texture based on the side being looked at.  Args: side
    158         */
    159        public int getBlockTextureFromSide(int par1)
    160        {
    161            return par1 == 1 ? this.blockIndexInTexture + 17 : (par1 == 0 ? this.blockIndexInTexture + 17 : (par1 == 3 ? this.blockIndexInTexture - 1 : this.blockIndexInTexture));
    162        }
    163
    164        /**
    165         * Called upon block activation (right click on the block.)
    166         */
    167        public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
    168        {
    169            if (par1World.isRemote)
    170            {
    171                return true;
    172            }
    173            else
    174            {
    175                TileEntityFurnace var10 = (TileEntityFurnace)par1World.getBlockTileEntity(par2, par3, par4);
    176
    177                if (var10 != null)
    178                {
    179                    par5EntityPlayer.displayGUIFurnace(var10);
    180                }
    181
    182                return true;
    183            }
    184        }
    185
    186        /**
    187         * Update which block ID the furnace is using depending on whether or not it is burning
    188         */
    189        public static void updateFurnaceBlockState(boolean par0, World par1World, int par2, int par3, int par4)
    190        {
    191            int var5 = par1World.getBlockMetadata(par2, par3, par4);
    192            TileEntity var6 = par1World.getBlockTileEntity(par2, par3, par4);
    193            keepFurnaceInventory = true;
    194
    195            if (par0)
    196            {
    197                par1World.setBlockWithNotify(par2, par3, par4, Block.stoneOvenActive.blockID);
    198            }
    199            else
    200            {
    201                par1World.setBlockWithNotify(par2, par3, par4, Block.stoneOvenIdle.blockID);
    202            }
    203
    204            keepFurnaceInventory = false;
    205            par1World.setBlockMetadataWithNotify(par2, par3, par4, var5);
    206
    207            if (var6 != null)
    208            {
    209                var6.validate();
    210                par1World.setBlockTileEntity(par2, par3, par4, var6);
    211            }
    212        }
    213
    214        /**
    215         * Returns a new instance of a block's tile entity class. Called on placing the block.
    216         */
    217        public TileEntity createNewTileEntity(World par1World)
    218        {
    219            return new TileEntityFurnace();
    220        }
    221
    222        /**
    223         * Called when the block is placed in the world.
    224         */
    225        public void onBlockPlacedBy(World par1World, int par2, int par3, int par4, EntityLiving par5EntityLiving)
    226        {
    227            int var6 = MathHelper.floor_double((double)(par5EntityLiving.rotationYaw * 4.0F / 360.0F) + 0.5D) & 3;
    228
    229            if (var6 == 0)
    230            {
    231                par1World.setBlockMetadataWithNotify(par2, par3, par4, 2);
    232            }
    233
    234            if (var6 == 1)
    235            {
    236                par1World.setBlockMetadataWithNotify(par2, par3, par4, 5);
    237            }
    238
    239            if (var6 == 2)
    240            {
    241                par1World.setBlockMetadataWithNotify(par2, par3, par4, 3);
    242            }
    243
    244            if (var6 == 3)
    245            {
    246                par1World.setBlockMetadataWithNotify(par2, par3, par4, 4);
    247            }
    248        }
    249
    250        /**
    251         * ejects contained items into the world, and notifies neighbours of an update, as appropriate
    252         */
    253        public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
    254        {
    255            if (!keepFurnaceInventory)
    256            {
    257                TileEntityFurnace var7 = (TileEntityFurnace)par1World.getBlockTileEntity(par2, par3, par4);
    258
    259                if (var7 != null)
    260                {
    261                    for (int var8 = 0; var8 < var7.getSizeInventory(); ++var8)
    262                    {
    263                        ItemStack var9 = var7.getStackInSlot(var8);
    264
    265                        if (var9 != null)
    266                        {
    267                            float var10 = this.furnaceRand.nextFloat() * 0.8F + 0.1F;
    268                            float var11 = this.furnaceRand.nextFloat() * 0.8F + 0.1F;
    269                            float var12 = this.furnaceRand.nextFloat() * 0.8F + 0.1F;
    270
    271                            while (var9.stackSize > 0)
    272                            {
    273                                int var13 = this.furnaceRand.nextInt(21) + 10;
    274
    275                                if (var13 > var9.stackSize)
    276                                {
    277                                    var13 = var9.stackSize;
    278                                }
    279
    280                                var9.stackSize -= var13;
    281                                EntityItem var14 = new EntityItem(par1World, (double)((float)par2 + var10), (double)((float)par3 + var11), (double)((float)par4 + var12), new ItemStack(var9.itemID, var13, var9.getItemDamage()));
    282
    283                                if (var9.hasTagCompound())
    284                                {
    285                                    var14.item.setTagCompound((NBTTagCompound)var9.getTagCompound().copy());
    286                                }
    287
    288                                float var15 = 0.05F;
    289                                var14.motionX = (double)((float)this.furnaceRand.nextGaussian() * var15);
    290                                var14.motionY = (double)((float)this.furnaceRand.nextGaussian() * var15 + 0.2F);
    291                                var14.motionZ = (double)((float)this.furnaceRand.nextGaussian() * var15);
    292                                par1World.spawnEntityInWorld(var14);
    293                            }
    294                        }
    295                    }
    296                }
    297            }
    298
    299            super.breakBlock(par1World, par2, par3, par4, par5, par6);
    300        }
    301    }