    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.Iterator;
    006    import java.util.List;
    007    import java.util.Random;
    008    import net.minecraft.block.material.Material;
    009    import net.minecraft.entity.Entity;
    010    import net.minecraft.entity.player.EntityPlayer;
    011    import net.minecraft.item.Item;
    012    import net.minecraft.util.AxisAlignedBB;
    013    import net.minecraft.util.Direction;
    014    import net.minecraft.world.IBlockAccess;
    015    import net.minecraft.world.World;
    016
    017    public class BlockTripWire extends Block
    018    {
    019        public BlockTripWire(int par1)
    020        {
    021            super(par1, 173, Material.circuits);
    022            this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.15625F, 1.0F);
    023            this.setTickRandomly(true);
    024        }
    025
    026        /**
    027         * How many world ticks before ticking
    028         */
    029        public int tickRate()
    030        {
    031            return 10;
    032        }
    033
    034        /**
    035         * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
    036         * cleared to be reused)
    037         */
    038        public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
    039        {
    040            return null;
    041        }
    042
    043        /**
    044         * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
    045         * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
    046         */
    047        public boolean isOpaqueCube()
    048        {
    049            return false;
    050        }
    051
    052        /**
    053         * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
    054         */
    055        public boolean renderAsNormalBlock()
    056        {
    057            return false;
    058        }
    059
    060        @SideOnly(Side.CLIENT)
    061
    062        /**
    063         * Returns which pass should this block be rendered on. 0 for solids and 1 for alpha
    064         */
    065        public int getRenderBlockPass()
    066        {
    067            return 1;
    068        }
    069
    070        /**
    071         * The type of render function that is called for this block
    072         */
    073        public int getRenderType()
    074        {
    075            return 30;
    076        }
    077
    078        /**
    079         * Returns the ID of the items to drop on destruction.
    080         */
    081        public int idDropped(int par1, Random par2Random, int par3)
    082        {
    083            return Item.silk.shiftedIndex;
    084        }
    085
    086        @SideOnly(Side.CLIENT)
    087
    088        /**
    089         * only called by clickMiddleMouseButton , and passed to inventory.setCurrentItem (along with isCreative)
    090         */
    091        public int idPicked(World par1World, int par2, int par3, int par4)
    092        {
    093            return Item.silk.shiftedIndex;
    094        }
    095
    096        /**
    097         * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
    098         * their own) Args: x, y, z, neighbor blockID
    099         */
    100        public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
    101        {
    102            int var6 = par1World.getBlockMetadata(par2, par3, par4);
    103            boolean var7 = (var6 & 2) == 2;
    104            boolean var8 = !par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4);
    105
    106            if (var7 != var8)
    107            {
    108                this.dropBlockAsItem(par1World, par2, par3, par4, var6, 0);
    109                par1World.setBlockWithNotify(par2, par3, par4, 0);
    110            }
    111        }
    112
    113        /**
    114         * Updates the blocks bounds based on its current state. Args: world, x, y, z
    115         */
    116        public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
    117        {
    118            int var5 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
    119            boolean var6 = (var5 & 4) == 4;
    120            boolean var7 = (var5 & 2) == 2;
    121
    122            if (!var7)
    123            {
    124                this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.09375F, 1.0F);
    125            }
    126            else if (!var6)
    127            {
    128                this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.5F, 1.0F);
    129            }
    130            else
    131            {
    132                this.setBlockBounds(0.0F, 0.0625F, 0.0F, 1.0F, 0.15625F, 1.0F);
    133            }
    134        }
    135
    136        /**
    137         * Called whenever the block is added into the world. Args: world, x, y, z
    138         */
    139        public void onBlockAdded(World par1World, int par2, int par3, int par4)
    140        {
    141            int var5 = par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4) ? 0 : 2;
    142            par1World.setBlockMetadataWithNotify(par2, par3, par4, var5);
    143            this.func_72149_e(par1World, par2, par3, par4, var5);
    144        }
    145
    146        /**
    147         * ejects contained items into the world, and notifies neighbours of an update, as appropriate
    148         */
    149        public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
    150        {
    151            this.func_72149_e(par1World, par2, par3, par4, par6 | 1);
    152        }
    153
    154        /**
    155         * Called when the block is attempted to be harvested
    156         */
    157        public void onBlockHarvested(World par1World, int par2, int par3, int par4, int par5, EntityPlayer par6EntityPlayer)
    158        {
    159            if (!par1World.isRemote)
    160            {
    161                if (par6EntityPlayer.getCurrentEquippedItem() != null && par6EntityPlayer.getCurrentEquippedItem().itemID == Item.shears.shiftedIndex)
    162                {
    163                    par1World.setBlockMetadataWithNotify(par2, par3, par4, par5 | 8);
    164                }
    165            }
    166        }
    167
    168        private void func_72149_e(World par1World, int par2, int par3, int par4, int par5)
    169        {
    170            int var6 = 0;
    171
    172            while (var6 < 2)
    173            {
    174                int var7 = 1;
    175
    176                while (true)
    177                {
    178                    if (var7 < 42)
    179                    {
    180                        int var8 = par2 + Direction.offsetX[var6] * var7;
    181                        int var9 = par4 + Direction.offsetZ[var6] * var7;
    182                        int var10 = par1World.getBlockId(var8, par3, var9);
    183
    184                        if (var10 == Block.tripWireSource.blockID)
    185                        {
    186                            int var11 = par1World.getBlockMetadata(var8, par3, var9) & 3;
    187
    188                            if (var11 == Direction.footInvisibleFaceRemap[var6])
    189                            {
    190                                Block.tripWireSource.func_72143_a(par1World, var8, par3, var9, var10, par1World.getBlockMetadata(var8, par3, var9), true, var7, par5);
    191                            }
    192                        }
    193                        else if (var10 == Block.tripWire.blockID)
    194                        {
    195                            ++var7;
    196                            continue;
    197                        }
    198                    }
    199
    200                    ++var6;
    201                    break;
    202                }
    203            }
    204        }
    205
    206        /**
    207         * Triggered whenever an entity collides with this block (enters into the block). Args: world, x, y, z, entity
    208         */
    209        public void onEntityCollidedWithBlock(World par1World, int par2, int par3, int par4, Entity par5Entity)
    210        {
    211            if (!par1World.isRemote)
    212            {
    213                if ((par1World.getBlockMetadata(par2, par3, par4) & 1) != 1)
    214                {
    215                    this.updateTripWireState(par1World, par2, par3, par4);
    216                }
    217            }
    218        }
    219
    220        /**
    221         * Ticks the block if it's been scheduled
    222         */
    223        public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    224        {
    225            if (!par1World.isRemote)
    226            {
    227                if ((par1World.getBlockMetadata(par2, par3, par4) & 1) == 1)
    228                {
    229                    this.updateTripWireState(par1World, par2, par3, par4);
    230                }
    231            }
    232        }
    233
    234        private void updateTripWireState(World par1World, int par2, int par3, int par4)
    235        {
    236            int var5 = par1World.getBlockMetadata(par2, par3, par4);
    237            boolean var6 = (var5 & 1) == 1;
    238            boolean var7 = false;
    239            List var8 = par1World.getEntitiesWithinAABBExcludingEntity((Entity)null, AxisAlignedBB.getAABBPool().addOrModifyAABBInPool((double)par2 + this.minX, (double)par3 + this.minY, (double)par4 + this.minZ, (double)par2 + this.maxX, (double)par3 + this.maxY, (double)par4 + this.maxZ));
    240
    241            if (!var8.isEmpty())
    242            {
    243                Iterator var9 = var8.iterator();
    244
    245                while (var9.hasNext())
    246                {
    247                    Entity var10 = (Entity)var9.next();
    248
    249                    if (!var10.doesEntityNotTriggerPressurePlate())
    250                    {
    251                        var7 = true;
    252                        break;
    253                    }
    254                }
    255            }
    256
    257            if (var7 && !var6)
    258            {
    259                var5 |= 1;
    260            }
    261
    262            if (!var7 && var6)
    263            {
    264                var5 &= -2;
    265            }
    266
    267            if (var7 != var6)
    268            {
    269                par1World.setBlockMetadataWithNotify(par2, par3, par4, var5);
    270                this.func_72149_e(par1World, par2, par3, par4, var5);
    271            }
    272
    273            if (var7)
    274            {
    275                par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
    276            }
    277        }
    278
    279        @SideOnly(Side.CLIENT)
    280        public static boolean func_72148_a(IBlockAccess par0IBlockAccess, int par1, int par2, int par3, int par4, int par5)
    281        {
    282            int var6 = par1 + Direction.offsetX[par5];
    283            int var8 = par3 + Direction.offsetZ[par5];
    284            int var9 = par0IBlockAccess.getBlockId(var6, par2, var8);
    285            boolean var10 = (par4 & 2) == 2;
    286            int var11;
    287
    288            if (var9 == Block.tripWireSource.blockID)
    289            {
    290                var11 = par0IBlockAccess.getBlockMetadata(var6, par2, var8);
    291                int var13 = var11 & 3;
    292                return var13 == Direction.footInvisibleFaceRemap[par5];
    293            }
    294            else if (var9 == Block.tripWire.blockID)
    295            {
    296                var11 = par0IBlockAccess.getBlockMetadata(var6, par2, var8);
    297                boolean var12 = (var11 & 2) == 2;
    298                return var10 == var12;
    299            }
    300            else
    301            {
    302                return false;
    303            }
    304        }
    305    }