    001package net.minecraft.block;
    002
    003import cpw.mods.fml.relauncher.Side;
    004import cpw.mods.fml.relauncher.SideOnly;
    005import java.util.Random;
    006import net.minecraft.block.material.Material;
    007import net.minecraft.client.renderer.texture.IconRegister;
    008import net.minecraft.entity.EntityLiving;
    009import net.minecraft.entity.item.EntityItem;
    010import net.minecraft.entity.player.EntityPlayer;
    011import net.minecraft.inventory.Container;
    012import net.minecraft.inventory.IInventory;
    013import net.minecraft.item.ItemStack;
    014import net.minecraft.nbt.NBTTagCompound;
    015import net.minecraft.tileentity.TileEntity;
    016import net.minecraft.tileentity.TileEntityFurnace;
    017import net.minecraft.util.Icon;
    018import net.minecraft.util.MathHelper;
    019import net.minecraft.world.World;
    020
    021public class BlockFurnace extends BlockContainer
    022{
    023    /**
    024     * Is the random generator used by furnace to drop the inventory contents in random directions.
    025     */
    026    private final Random furnaceRand = new Random();
    027
    028    /** True if this is an active furnace, false if idle */
    029    private final boolean isActive;
    030
    031    /**
    032     * This flag is used to prevent the furnace inventory to be dropped upon block removal, is used internally when the
    033     * furnace block changes from idle to active and vice-versa.
    034     */
    035    private static boolean keepFurnaceInventory = false;
    036    @SideOnly(Side.CLIENT)
    037    private Icon field_94458_cO;
    038    @SideOnly(Side.CLIENT)
    039    private Icon field_94459_cP;
    040
    041    protected BlockFurnace(int par1, boolean par2)
    042    {
    043        super(par1, Material.rock);
    044        this.isActive = par2;
    045    }
    046
    047    /**
    048     * Returns the ID of the items to drop on destruction.
    049     */
    050    public int idDropped(int par1, Random par2Random, int par3)
    051    {
    052        return Block.furnaceIdle.blockID;
    053    }
    054
    055    /**
    056     * Called whenever the block is added into the world. Args: world, x, y, z
    057     */
    058    public void onBlockAdded(World par1World, int par2, int par3, int par4)
    059    {
    060        super.onBlockAdded(par1World, par2, par3, par4);
    061        this.setDefaultDirection(par1World, par2, par3, par4);
    062    }
    063
    064    /**
    065     * set a blocks direction
    066     */
    067    private void setDefaultDirection(World par1World, int par2, int par3, int par4)
    068    {
    069        if (!par1World.isRemote)
    070        {
    071            int l = par1World.getBlockId(par2, par3, par4 - 1);
    072            int i1 = par1World.getBlockId(par2, par3, par4 + 1);
    073            int j1 = par1World.getBlockId(par2 - 1, par3, par4);
    074            int k1 = par1World.getBlockId(par2 + 1, par3, par4);
    075            byte b0 = 3;
    076
    077            if (Block.opaqueCubeLookup[l] && !Block.opaqueCubeLookup[i1])
    078            {
    079                b0 = 3;
    080            }
    081
    082            if (Block.opaqueCubeLookup[i1] && !Block.opaqueCubeLookup[l])
    083            {
    084                b0 = 2;
    085            }
    086
    087            if (Block.opaqueCubeLookup[j1] && !Block.opaqueCubeLookup[k1])
    088            {
    089                b0 = 5;
    090            }
    091
    092            if (Block.opaqueCubeLookup[k1] && !Block.opaqueCubeLookup[j1])
    093            {
    094                b0 = 4;
    095            }
    096
    097            par1World.setBlockMetadataWithNotify(par2, par3, par4, b0, 2);
    098        }
    099    }
    100
    101    @SideOnly(Side.CLIENT)
    102
    103    /**
    104     * From the specified side and block metadata retrieves the blocks texture. Args: side, metadata
    105     */
    106    public Icon getIcon(int par1, int par2)
    107    {
    108        return par1 == 1 ? this.field_94458_cO : (par1 == 0 ? this.field_94458_cO : (par1 != par2 ? this.blockIcon : this.field_94459_cP));
    109    }
    110
    111    @SideOnly(Side.CLIENT)
    112
    113    /**
    114     * When this method is called, your block should register all the icons it needs with the given IconRegister. This
    115     * is the only chance you get to register icons.
    116     */
    117    public void registerIcons(IconRegister par1IconRegister)
    118    {
    119        this.blockIcon = par1IconRegister.registerIcon("furnace_side");
    120        this.field_94459_cP = par1IconRegister.registerIcon(this.isActive ? "furnace_front_lit" : "furnace_front");
    121        this.field_94458_cO = par1IconRegister.registerIcon("furnace_top");
    122    }
    123
    124    /**
    125     * Called upon block activation (right click on the block.)
    126     */
    127    public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
    128    {
    129        if (par1World.isRemote)
    130        {
    131            return true;
    132        }
    133        else
    134        {
    135            TileEntityFurnace tileentityfurnace = (TileEntityFurnace)par1World.getBlockTileEntity(par2, par3, par4);
    136
    137            if (tileentityfurnace != null)
    138            {
    139                par5EntityPlayer.displayGUIFurnace(tileentityfurnace);
    140            }
    141
    142            return true;
    143        }
    144    }
    145
    146    /**
    147     * Update which block ID the furnace is using depending on whether or not it is burning
    148     */
    149    public static void updateFurnaceBlockState(boolean par0, World par1World, int par2, int par3, int par4)
    150    {
    151        int l = par1World.getBlockMetadata(par2, par3, par4);
    152        TileEntity tileentity = par1World.getBlockTileEntity(par2, par3, par4);
    153        keepFurnaceInventory = true;
    154
    155        if (par0)
    156        {
    157            par1World.setBlock(par2, par3, par4, Block.furnaceBurning.blockID);
    158        }
    159        else
    160        {
    161            par1World.setBlock(par2, par3, par4, Block.furnaceIdle.blockID);
    162        }
    163
    164        keepFurnaceInventory = false;
    165        par1World.setBlockMetadataWithNotify(par2, par3, par4, l, 2);
    166
    167        if (tileentity != null)
    168        {
    169            tileentity.validate();
    170            par1World.setBlockTileEntity(par2, par3, par4, tileentity);
    171        }
    172    }
    173
    174    @SideOnly(Side.CLIENT)
    175
    176    /**
    177     * A randomly called display update to be able to add particles or other items for display
    178     */
    179    public void randomDisplayTick(World par1World, int par2, int par3, int par4, Random par5Random)
    180    {
    181        if (this.isActive)
    182        {
    183            int l = par1World.getBlockMetadata(par2, par3, par4);
    184            float f = (float)par2 + 0.5F;
    185            float f1 = (float)par3 + 0.0F + par5Random.nextFloat() * 6.0F / 16.0F;
    186            float f2 = (float)par4 + 0.5F;
    187            float f3 = 0.52F;
    188            float f4 = par5Random.nextFloat() * 0.6F - 0.3F;
    189
    190            if (l == 4)
    191            {
    192                par1World.spawnParticle("smoke", (double)(f - f3), (double)f1, (double)(f2 + f4), 0.0D, 0.0D, 0.0D);
    193                par1World.spawnParticle("flame", (double)(f - f3), (double)f1, (double)(f2 + f4), 0.0D, 0.0D, 0.0D);
    194            }
    195            else if (l == 5)
    196            {
    197                par1World.spawnParticle("smoke", (double)(f + f3), (double)f1, (double)(f2 + f4), 0.0D, 0.0D, 0.0D);
    198                par1World.spawnParticle("flame", (double)(f + f3), (double)f1, (double)(f2 + f4), 0.0D, 0.0D, 0.0D);
    199            }
    200            else if (l == 2)
    201            {
    202                par1World.spawnParticle("smoke", (double)(f + f4), (double)f1, (double)(f2 - f3), 0.0D, 0.0D, 0.0D);
    203                par1World.spawnParticle("flame", (double)(f + f4), (double)f1, (double)(f2 - f3), 0.0D, 0.0D, 0.0D);
    204            }
    205            else if (l == 3)
    206            {
    207                par1World.spawnParticle("smoke", (double)(f + f4), (double)f1, (double)(f2 + f3), 0.0D, 0.0D, 0.0D);
    208                par1World.spawnParticle("flame", (double)(f + f4), (double)f1, (double)(f2 + f3), 0.0D, 0.0D, 0.0D);
    209            }
    210        }
    211    }
    212
    213    /**
    214     * Returns a new instance of a block's tile entity class. Called on placing the block.
    215     */
    216    public TileEntity createNewTileEntity(World par1World)
    217    {
    218        return new TileEntityFurnace();
    219    }
    220
    221    /**
    222     * Called when the block is placed in the world.
    223     */
    224    public void onBlockPlacedBy(World par1World, int par2, int par3, int par4, EntityLiving par5EntityLiving, ItemStack par6ItemStack)
    225    {
    226        int l = MathHelper.floor_double((double)(par5EntityLiving.rotationYaw * 4.0F / 360.0F) + 0.5D) & 3;
    227
    228        if (l == 0)
    229        {
    230            par1World.setBlockMetadataWithNotify(par2, par3, par4, 2, 2);
    231        }
    232
    233        if (l == 1)
    234        {
    235            par1World.setBlockMetadataWithNotify(par2, par3, par4, 5, 2);
    236        }
    237
    238        if (l == 2)
    239        {
    240            par1World.setBlockMetadataWithNotify(par2, par3, par4, 3, 2);
    241        }
    242
    243        if (l == 3)
    244        {
    245            par1World.setBlockMetadataWithNotify(par2, par3, par4, 4, 2);
    246        }
    247
    248        if (par6ItemStack.hasDisplayName())
    249        {
    250            ((TileEntityFurnace)par1World.getBlockTileEntity(par2, par3, par4)).func_94129_a(par6ItemStack.getDisplayName());
    251        }
    252    }
    253
    254    /**
    255     * ejects contained items into the world, and notifies neighbours of an update, as appropriate
    256     */
    257    public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
    258    {
    259        if (!keepFurnaceInventory)
    260        {
    261            TileEntityFurnace tileentityfurnace = (TileEntityFurnace)par1World.getBlockTileEntity(par2, par3, par4);
    262
    263            if (tileentityfurnace != null)
    264            {
    265                for (int j1 = 0; j1 < tileentityfurnace.getSizeInventory(); ++j1)
    266                {
    267                    ItemStack itemstack = tileentityfurnace.getStackInSlot(j1);
    268
    269                    if (itemstack != null)
    270                    {
    271                        float f = this.furnaceRand.nextFloat() * 0.8F + 0.1F;
    272                        float f1 = this.furnaceRand.nextFloat() * 0.8F + 0.1F;
    273                        float f2 = this.furnaceRand.nextFloat() * 0.8F + 0.1F;
    274
    275                        while (itemstack.stackSize > 0)
    276                        {
    277                            int k1 = this.furnaceRand.nextInt(21) + 10;
    278
    279                            if (k1 > itemstack.stackSize)
    280                            {
    281                                k1 = itemstack.stackSize;
    282                            }
    283
    284                            itemstack.stackSize -= k1;
    285                            EntityItem entityitem = new EntityItem(par1World, (double)((float)par2 + f), (double)((float)par3 + f1), (double)((float)par4 + f2), new ItemStack(itemstack.itemID, k1, itemstack.getItemDamage()));
    286
    287                            if (itemstack.hasTagCompound())
    288                            {
    289                                entityitem.getEntityItem().setTagCompound((NBTTagCompound)itemstack.getTagCompound().copy());
    290                            }
    291
    292                            float f3 = 0.05F;
    293                            entityitem.motionX = (double)((float)this.furnaceRand.nextGaussian() * f3);
    294                            entityitem.motionY = (double)((float)this.furnaceRand.nextGaussian() * f3 + 0.2F);
    295                            entityitem.motionZ = (double)((float)this.furnaceRand.nextGaussian() * f3);
    296                            par1World.spawnEntityInWorld(entityitem);
    297                        }
    298                    }
    299                }
    300
    301                par1World.func_96440_m(par2, par3, par4, par5);
    302            }
    303        }
    304
    305        super.breakBlock(par1World, par2, par3, par4, par5, par6);
    306    }
    307
    308    /**
    309     * If this returns true, then comparators facing away from this block will use the value from
    310     * getComparatorInputOverride instead of the actual redstone signal strength.
    311     */
    312    public boolean hasComparatorInputOverride()
    313    {
    314        return true;
    315    }
    316
    317    /**
    318     * If hasComparatorInputOverride returns true, the return value from this is used instead of the redstone signal
    319     * strength when this block inputs to a comparator.
    320     */
    321    public int getComparatorInputOverride(World par1World, int par2, int par3, int par4, int par5)
    322    {
    323        return Container.func_94526_b((IInventory)par1World.getBlockTileEntity(par2, par3, par4));
    324    }
    325}