    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.ArrayList;
    006    import java.util.HashMap;
    007    import java.util.List;
    008    import java.util.Map;
    009    import java.util.Random;
    010    import net.minecraft.creativetab.CreativeTabs;
    011    import net.minecraft.world.IBlockAccess;
    012    import net.minecraft.world.World;
    013
    014    public class BlockRedstoneTorch extends BlockTorch
    015    {
    016        /** Whether the redstone torch is currently active or not. */
    017        private boolean torchActive = false;
    018
    019        /** Map of ArrayLists of RedstoneUpdateInfo. Key of map is World. */
    020        private static Map redstoneUpdateInfoCache = new HashMap();
    021
    022        /**
    023         * From the specified side and block metadata retrieves the blocks texture. Args: side, metadata
    024         */
    025        public int getBlockTextureFromSideAndMetadata(int par1, int par2)
    026        {
    027            return par1 == 1 ? Block.redstoneWire.getBlockTextureFromSideAndMetadata(par1, par2) : super.getBlockTextureFromSideAndMetadata(par1, par2);
    028        }
    029
    030        private boolean checkForBurnout(World par1World, int par2, int par3, int par4, boolean par5)
    031        {
    032            if (!redstoneUpdateInfoCache.containsKey(par1World))
    033            {
    034                redstoneUpdateInfoCache.put(par1World, new ArrayList());
    035            }
    036
    037            List var6 = (List)redstoneUpdateInfoCache.get(par1World);
    038
    039            if (par5)
    040            {
    041                var6.add(new RedstoneUpdateInfo(par2, par3, par4, par1World.getTotalWorldTime()));
    042            }
    043
    044            int var7 = 0;
    045
    046            for (int var8 = 0; var8 < var6.size(); ++var8)
    047            {
    048                RedstoneUpdateInfo var9 = (RedstoneUpdateInfo)var6.get(var8);
    049
    050                if (var9.x == par2 && var9.y == par3 && var9.z == par4)
    051                {
    052                    ++var7;
    053
    054                    if (var7 >= 8)
    055                    {
    056                        return true;
    057                    }
    058                }
    059            }
    060
    061            return false;
    062        }
    063
    064        protected BlockRedstoneTorch(int par1, int par2, boolean par3)
    065        {
    066            super(par1, par2);
    067            this.torchActive = par3;
    068            this.setTickRandomly(true);
    069            this.setCreativeTab((CreativeTabs)null);
    070        }
    071
    072        /**
    073         * How many world ticks before ticking
    074         */
    075        public int tickRate()
    076        {
    077            return 2;
    078        }
    079
    080        /**
    081         * Called whenever the block is added into the world. Args: world, x, y, z
    082         */
    083        public void onBlockAdded(World par1World, int par2, int par3, int par4)
    084        {
    085            if (par1World.getBlockMetadata(par2, par3, par4) == 0)
    086            {
    087                super.onBlockAdded(par1World, par2, par3, par4);
    088            }
    089
    090            if (this.torchActive)
    091            {
    092                par1World.notifyBlocksOfNeighborChange(par2, par3 - 1, par4, this.blockID);
    093                par1World.notifyBlocksOfNeighborChange(par2, par3 + 1, par4, this.blockID);
    094                par1World.notifyBlocksOfNeighborChange(par2 - 1, par3, par4, this.blockID);
    095                par1World.notifyBlocksOfNeighborChange(par2 + 1, par3, par4, this.blockID);
    096                par1World.notifyBlocksOfNeighborChange(par2, par3, par4 - 1, this.blockID);
    097                par1World.notifyBlocksOfNeighborChange(par2, par3, par4 + 1, this.blockID);
    098            }
    099        }
    100
    101        /**
    102         * ejects contained items into the world, and notifies neighbours of an update, as appropriate
    103         */
    104        public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
    105        {
    106            if (this.torchActive)
    107            {
    108                par1World.notifyBlocksOfNeighborChange(par2, par3 - 1, par4, this.blockID);
    109                par1World.notifyBlocksOfNeighborChange(par2, par3 + 1, par4, this.blockID);
    110                par1World.notifyBlocksOfNeighborChange(par2 - 1, par3, par4, this.blockID);
    111                par1World.notifyBlocksOfNeighborChange(par2 + 1, par3, par4, this.blockID);
    112                par1World.notifyBlocksOfNeighborChange(par2, par3, par4 - 1, this.blockID);
    113                par1World.notifyBlocksOfNeighborChange(par2, par3, par4 + 1, this.blockID);
    114            }
    115        }
    116
    117        /**
    118         * Returns true if the block is emitting indirect/weak redstone power on the specified side. If isBlockNormalCube
    119         * returns true, standard redstone propagation rules will apply instead and this will not be called. Args: World, X,
    120         * Y, Z, side
    121         */
    122        public boolean isProvidingWeakPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    123        {
    124            if (!this.torchActive)
    125            {
    126                return false;
    127            }
    128            else
    129            {
    130                int var6 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
    131                return var6 == 5 && par5 == 1 ? false : (var6 == 3 && par5 == 3 ? false : (var6 == 4 && par5 == 2 ? false : (var6 == 1 && par5 == 5 ? false : var6 != 2 || par5 != 4)));
    132            }
    133        }
    134
    135        /**
    136         * Returns true or false based on whether the block the torch is attached to is providing indirect power.
    137         */
    138        private boolean isIndirectlyPowered(World par1World, int par2, int par3, int par4)
    139        {
    140            int var5 = par1World.getBlockMetadata(par2, par3, par4);
    141            return var5 == 5 && par1World.isBlockIndirectlyProvidingPowerTo(par2, par3 - 1, par4, 0) ? true : (var5 == 3 && par1World.isBlockIndirectlyProvidingPowerTo(par2, par3, par4 - 1, 2) ? true : (var5 == 4 && par1World.isBlockIndirectlyProvidingPowerTo(par2, par3, par4 + 1, 3) ? true : (var5 == 1 && par1World.isBlockIndirectlyProvidingPowerTo(par2 - 1, par3, par4, 4) ? true : var5 == 2 && par1World.isBlockIndirectlyProvidingPowerTo(par2 + 1, par3, par4, 5))));
    142        }
    143
    144        /**
    145         * Ticks the block if it's been scheduled
    146         */
    147        public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    148        {
    149            boolean var6 = this.isIndirectlyPowered(par1World, par2, par3, par4);
    150            List var7 = (List)redstoneUpdateInfoCache.get(par1World);
    151
    152            while (var7 != null && !var7.isEmpty() && par1World.getTotalWorldTime() - ((RedstoneUpdateInfo)var7.get(0)).updateTime > 60L)
    153            {
    154                var7.remove(0);
    155            }
    156
    157            if (this.torchActive)
    158            {
    159                if (var6)
    160                {
    161                    par1World.setBlockAndMetadataWithNotify(par2, par3, par4, Block.torchRedstoneIdle.blockID, par1World.getBlockMetadata(par2, par3, par4));
    162
    163                    if (this.checkForBurnout(par1World, par2, par3, par4, true))
    164                    {
    165                        par1World.playSoundEffect((double)((float)par2 + 0.5F), (double)((float)par3 + 0.5F), (double)((float)par4 + 0.5F), "random.fizz", 0.5F, 2.6F + (par1World.rand.nextFloat() - par1World.rand.nextFloat()) * 0.8F);
    166
    167                        for (int var8 = 0; var8 < 5; ++var8)
    168                        {
    169                            double var9 = (double)par2 + par5Random.nextDouble() * 0.6D + 0.2D;
    170                            double var11 = (double)par3 + par5Random.nextDouble() * 0.6D + 0.2D;
    171                            double var13 = (double)par4 + par5Random.nextDouble() * 0.6D + 0.2D;
    172                            par1World.spawnParticle("smoke", var9, var11, var13, 0.0D, 0.0D, 0.0D);
    173                        }
    174                    }
    175                }
    176            }
    177            else if (!var6 && !this.checkForBurnout(par1World, par2, par3, par4, false))
    178            {
    179                par1World.setBlockAndMetadataWithNotify(par2, par3, par4, Block.torchRedstoneActive.blockID, par1World.getBlockMetadata(par2, par3, par4));
    180            }
    181        }
    182
    183        /**
    184         * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
    185         * their own) Args: x, y, z, neighbor blockID
    186         */
    187        public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
    188        {
    189            super.onNeighborBlockChange(par1World, par2, par3, par4, par5);
    190            par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
    191        }
    192
    193        /**
    194         * Returns true if the block is emitting direct/strong redstone power on the specified side. Args: World, X, Y, Z,
    195         * side
    196         */
    197        public boolean isProvidingStrongPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    198        {
    199            return par5 == 0 ? this.isProvidingWeakPower(par1IBlockAccess, par2, par3, par4, par5) : false;
    200        }
    201
    202        /**
    203         * Returns the ID of the items to drop on destruction.
    204         */
    205        public int idDropped(int par1, Random par2Random, int par3)
    206        {
    207            return Block.torchRedstoneActive.blockID;
    208        }
    209
    210        /**
    211         * Can this block provide power. Only wire currently seems to have this change based on its state.
    212         */
    213        public boolean canProvidePower()
    214        {
    215            return true;
    216        }
    217
    218        @SideOnly(Side.CLIENT)
    219
    220        /**
    221         * A randomly called display update to be able to add particles or other items for display
    222         */
    223        public void randomDisplayTick(World par1World, int par2, int par3, int par4, Random par5Random)
    224        {
    225            if (this.torchActive)
    226            {
    227                int var6 = par1World.getBlockMetadata(par2, par3, par4);
    228                double var7 = (double)((float)par2 + 0.5F) + (double)(par5Random.nextFloat() - 0.5F) * 0.2D;
    229                double var9 = (double)((float)par3 + 0.7F) + (double)(par5Random.nextFloat() - 0.5F) * 0.2D;
    230                double var11 = (double)((float)par4 + 0.5F) + (double)(par5Random.nextFloat() - 0.5F) * 0.2D;
    231                double var13 = 0.2199999988079071D;
    232                double var15 = 0.27000001072883606D;
    233
    234                if (var6 == 1)
    235                {
    236                    par1World.spawnParticle("reddust", var7 - var15, var9 + var13, var11, 0.0D, 0.0D, 0.0D);
    237                }
    238                else if (var6 == 2)
    239                {
    240                    par1World.spawnParticle("reddust", var7 + var15, var9 + var13, var11, 0.0D, 0.0D, 0.0D);
    241                }
    242                else if (var6 == 3)
    243                {
    244                    par1World.spawnParticle("reddust", var7, var9 + var13, var11 - var15, 0.0D, 0.0D, 0.0D);
    245                }
    246                else if (var6 == 4)
    247                {
    248                    par1World.spawnParticle("reddust", var7, var9 + var13, var11 + var15, 0.0D, 0.0D, 0.0D);
    249                }
    250                else
    251                {
    252                    par1World.spawnParticle("reddust", var7, var9, var11, 0.0D, 0.0D, 0.0D);
    253                }
    254            }
    255        }
    256
    257        @SideOnly(Side.CLIENT)
    258
    259        /**
    260         * only called by clickMiddleMouseButton , and passed to inventory.setCurrentItem (along with isCreative)
    261         */
    262        public int idPicked(World par1World, int par2, int par3, int par4)
    263        {
    264            return Block.torchRedstoneActive.blockID;
    265        }
    266    }